MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
________________________________________________________________ Maxim Integrated Products 1
19-1988; Rev 3; 1/07
General Description
The MAX5902/MAX5903 are hot-swap controllers that
allow a circuit card to be safely hot plugged into a live
backplane without causing a glitch on the power-sup-
ply rail. These devices operate from +9V to +72V and
provide the simplest hot-swap solution by eliminating all
external components except the external p-channel
MOSFET.
The MAX5902/MAX5903 limit the inrush current to the
load and provide a circuit-breaker function for overcurrent
protection. During startup the circuit-breaker function is
disabled and the MAX5902/MAX5903 limit the inrush cur-
rent by gradually turning on the external MOSFET. Once
the external MOSFET is fully enhanced, the circuit-break-
er function is enabled and the MAX5902/MAX5903 pro-
vide overcurrent protection by monitoring the voltage
drop across the external MOSFET’s on-resistance.
The MAX5902/MAX5903 include an undervoltage lock-
out (UVLO) function, ON/OFF control input, and a
power-good status output, PGOOD (MAX5902) or
PGOOD (MAX5903). A built-in thermal shutdown fea-
ture is also included to protect the external MOSFET in
case of overheating.
The MAX5902/MAX5903 offer latched or autoretry fault
management and are available with 300mV, 400mV or
500mV circuit-breaker thresholds. Both the MAX5902 and
MAX5903 are available in small SOT23 and TDFN pack-
ages, and are specified for the extended -40°C to +85°C
temperature range. For specific ordering information, see
the Selector Guide at the end of the data sheet.
Applications
Network Routers Servers
Network Switches RAID
Base Station Line Industrial Systems
Cards
Features
♦Wide +9V to +72V Operation
♦Requires No External Sense Resistor
♦Drives External p-Channel MOSFET
♦Limits Inrush Current
♦Circuit-Breaker Function
♦Less than 2mA Quiescent Current
♦ON/OFF Input Permits Load Power-Supply
Control and Sequencing
♦Adjustable Undervoltage Lockout
♦Power-Good Output with +72V Rating
♦Latching or Automatic Retry Fault Management
♦Thermal Shutdown Helps Protect the External
MOSFET
♦Available in Two Small Packages
6-Pin TDFN and SOT23
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX5902_ _EUT-T+*
-40°C to +85°C 6 SOT23-6
U6F+6
MAX5902_ _ETT-T+*
-40°C to +85°C 6 TDFN-6
T633+2
MAX5903_ _EUT-T+*
-40°C to +85°C 6 SOT23-6
U6F+6
MAX5903_ _ETT-T+*
-40°C to +85°C 6 TDFN-6
T633+2
*For specific part numbers see the Selector Guide at end of
data sheet.
+Denotes lead-free package.
GND
16ON/OFF
5PGOOD (PGOOD)
VS
MAX5902
MAX5903
SOT23-6
TOP VIEW
( ) ARE FOR MAX5903 ONLY.
2
34
DRAIN
GATE
Pin Configurations
Typical Operating Circuits
GND
ON/OFF
HOT-SWAP CONTROLLER
VS
GND
50W ISOLATED
POWER SUPPLY
VIN (-)
ON/OFF
LUCENT
JW050A1
VIN (+)
GATE
DRAIN
PGOOD
+48V
BACKPLANE CIRCUIT CARD
IRFR5410
MAX5902
Simple Swapper is a trademark of Maxim Integrated Products, Inc.
Pin Configurations continued at end of data sheet.
Typical Operating Circuits continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VS= +9V to +72V, GND = 0V, ON/OFF open circuit, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VS= +48V
and TA= +25°C.) (Notes 1, 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Terminal Voltage (with respect to GND unless otherwise noted)
VS, DRAIN, PGOOD, PGOOD ................................-0.3V to +76V
ON/OFF ....................................................................-0.3V to +4V
GATE to VS............................................................-12V to +0.3V
Current into any Pin ............................................................±3mA
Continuous Power Dissipation (TA= +70°C)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)..........727mW
6-Pin TDFN (derate 18.2mW/°C above +70°C) .......1454mW
Junction to Case
Thermal Resistance, θJC (TDFN) ..............................8.5°C/W
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
PARAMETER
C O ND IT IO N S
M IN
T YP
M A X
U N IT S
Supply Voltage VS972V
Supply Current IGND M easur ed out of G N D , P GO O D or PGOOD
op en ci r cui t, D RAIN = V
S 12mA
VS = +36V to +72V 91011
External Gate Drive VGS VS - VGATE VS = +9V 8 8.5 V
VS = +36V to +72V 5918
Load Voltage Slew-Rate
Magnitude SR | dVDRAIN/dt |
CL = 10µF VS = +9V 3611
V/ms
Default Undervoltage Lockout VUVLO VS increasing
28.5 31.5 34.5
V
Undervoltage Lockout
Hysteresis 3.5 V
ON/OFF Pin Input Resistance
RON/OFF
19 32 52 kΩ
DRAIN to GND Resistance
RDGND 900
kΩ
DRAIN to VS Resistance RDS
650
kΩ
ON/OFF Reference Threshold
VON/OFF
VON/OFF Increasing
1.14 1.26 1.38
V
ON/OFF Hysteresis
140
mV
Start Delay (Note 3) tON 80
150 280
ms
ON/OFF Off Delay (Note 4) tOFF VS - VGATE < 1V 51018ms
MAX590_ _AEUT
200 300 460
MAX590_ _BEUT
280 400 540
Circuit-Breaker Threshold VCB VS - VDRAIN
MAX590_ _CEUT
400 500 660
mV
CGATE = 1nF 2 6.5
CGATE = 4.7nF 411
Circuit-Breaker Delay (Note 5) tCB
(VS - VDRAIN) > VCB
until (VS - VGATE)
< 1V, 200mV
overdrive step CGATE = 10nF 717
µs
Restart Delay (Note 3) tRS After circuit breaker event,
MAX590_ A_EUT only 80
150 280
ms
P ow er - G ood O utp ut Low V ol tag e
VOL IOL = 1mA 0.3 0.6 V
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
_______________________________________________________________________________________ 3
Note 1: All currents into device pins are positive, all currents out of device pins are negative, and all voltages are referenced to
GND, unless otherwise noted.
Note 2: All specifications are 100% tested at TA= +25°C, unless otherwise noted. Specifications over -40°C to +85°C are guaran-
teed by characterization.
Note 3: This is the delay time from a valid on condition until VGS begins rising. Valid on conditions are: the device is not in undervolt-
age lockout; ON/OFF is not driven low; and the device is not in thermal shutdown.
Note 4: This is the delay from a valid low on ON/OFF until VGS falls. Pulses on ON/OFF less than tOFF are ignored, offering glitch
immunity.
Note 5: Guaranteed by characterization, not production tested. CGATE is a capacitor from GATE to VS.
ELECTRICAL CHARACTERISTICS (continued)
(VS= +9V to +72V, GND = 0V, ON/OFF open circuit, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VS= +48V
and TA= +25°C.) (Notes 1, 2)
PARAMETER
C O ND IT IO N S
M IN
T YP
M A X
U N IT S
Power-Good Output Open-Drain
Leakage Current IOH V
PGOOD = 72V (MAX5902)
V
PGOOD = 72V (MAX5903) 10 µA
Thermal Shutdown Temperature
TSD Junction temperature
+125
°C
Thermal Shutdown Hysteresis THY 15 °C
Typical Operating Characteristics
(VS= +48V, GND = 0V, and TA= +25°C, unless otherwise noted. See Figure 2 for test circuits.)
0.7
0.8
1.0
0.9
1.1
1.2
03015 45 60 75
SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX5902 toc01
INPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
0.7
0.8
1.0
0.9
1.1
1.2
-40 10-15 35 60 85
SUPPLY CURRENT
vs. TEMPERATURE
MAX5902 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
VIN = +70V
VIN = +48V
VIN = +12V
25
28
27
26
29
30
31
32
33
34
35
-40 10-15 356085
VUVLO THRESHOLD
vs. TEMPERATURE
MAX5902 toc03
TEMPERATURE (°C)
LOCKOUT VOLTAGE (V)
INCREASING VIN
DECREASING VIN
Typical Operating Characteristics (continued)
(VS= +48V, GND = 0V, and TA= +25°C, unless otherwise noted. See Figure 2 for test circuits.)
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
4 _______________________________________________________________________________________
5
7
11
9
13
15
03015 45 60 75
GATE DRIVE VOLTAGE
vs. INPUT VOLTAGE
MAX5902 toc04
INPUT VOLTAGE (V)
GATE DRIVE (V)
75
125
100
175
150
200
225
-40 10-15 356085
RETRY TIMEOUT
vs. TEMPERATURE
MAX5902 toc05
TEMPERATURE (°C)
TIMEOUT PERIOD (ms)
t = 20ms/div
TURN-ON WAVEFORMS
RL = 60Ω, CL = 100µF
A : VOUT, 50V/div
B : IIN, 1A/div
C : VGATE, 50V/div
D : VIN, 50V/div
A
B
D
C
MAX5902 toc06
0
0
0
0
t = 2ms/div
TURN-ON WAVEFORMS
RL = OPEN, CL = 100µF
A : VOUT, 50V/div
B : IIN, 1A/div
C : VGATE, 20V/div
A
B
C
MAX5902 toc07
0
0
0
t = 1µs/div
CIRCUIT-BREAKER EVENT
VOVERDRIVE = 20mV, CGATE = 1000pF
A
B
C
MAX5902 toc10
0
0
0
A : VDS, 0.5V/div
B : VGS, 10V/div
C : VPGOOD TO VS, 50V/div
t = 2ms/div
TURN-ON WAVEFORMS
RL = 60Ω, CL = 10µF
A : VOUT, 50V/div
B : IIN, 0.5A/div
C : VGATE, 20V/div
A
B
C
MAX5902 toc08
0
0
0
t = 1µs/div
CIRCUIT-BREAKER EVENT
VOVERDRIVE = 200mV, CGATE = 1000pF
A
B
C
MAX5902 toc11
0
0
0
A : VDS, 0.5V/div
B : VGS, 10V/div
C : VPGOOD TO VS, 50V/div
t = 2ms/div
TURN-ON WAVEFORMS
RL = 60Ω, CL = 100µF
A : VOUT, 50V/div
B : IIN, 1A/div
C : VGATE, 20V/div
A
B
C
MAX5902 toc09
0
0
0
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
_______________________________________________________________________________________ 5
Detailed Description
The MAX5902/MAX5903 are integrated hot-swap con-
troller ICs contained in 6-pin SOT23 and TDFN pack-
ages. They allow a board to be safely hot-plugged into
a live backplane without causing a glitch on the power-
supply rail. They are well suited for +48V power sys-
tems allowing cost-effective, simple, and compact
design. The MAX5902/MAX5903 operate from +9V to
+72V to cover a wide range of end equipment hot-swap
needs. They require only an external p-channel power
MOSFET to provide hot-swap control. Figure 1 shows a
functional block diagram of the MAX5902/MAX5903.
The MAX5902/MAX5903 controls an external p-channel
power MOSFET placed in the positive power-supply
pathway. When power is first applied, the MAX5902/
MAX5903 keep the MOSFET turned off. The
MAX5902/MAX5903 hold the MOSFET off indefinitely if
ON/OFF is held low, if the supply voltage is below the
undervoltage lockout level, or if the die temperature
exceeds +125°C. If none of these conditions exist for
150ms (typ), the MAX5902/MAX5903 begin to gradually
turn on the MOSFET. During this turn-on phase, the
MAX5902/MAX5903 slowly enhance the MOSFET,
allowing the voltage on the load, i.e. the drain of the
MOSFET, to rise at a rate of 9V/ms (typ). The inrush cur-
rent to the load is thus limited to a level proportional to
the load capacitance, and the constant slew rate. After
the MOSFET is fully enhanced, and the load voltage is
settled to its final value, the MAX5902A/ MAX5903A and
MAX5902L/MAX5903L monitor the voltage drop across
the MOSFET. If the voltage drop exceeds the circuit-
breaker threshold the MAX5902A/MAX5903A and
VS
ON/OFF
GND
GND
GND
3V
MAX5902
MAX5903
828kΩ
*900kΩ
34.5kΩ
1kΩ
GATE
DRAIN
CONTROL
LOGIC
PGOOD
(PGOOD)
( ) ARE FOR THE MAX5903 ONLY
* RELATIVE TOLERANCE ±1%, ABSOLUTE TOLERANCE ±50% (TYP)
*650kΩ
*
*
Figure 1. Functional Block Diagram
Pin Description
PIN
MAX5902
MAX5903
NAME FUNCTION
11V
SPositive Supply Voltage Input and External p-Channel MOSFET Source Connection
2 2 DRAIN
Drain Sense Input for External p-Channel MOSFET. Connect DRAIN as close as
possible to the MOSFET’s drain and use wide circuit traces to assure good thermal
coupling between the MAX5902/MAX5903 and the MOSFET. See Layout Guidelines
Section.
3 3 GATE Gate Drive Output for External p-Channel MOSFET
4 4 GND Ground Connection
5—PGOOD Power-Good Output. PGOOD is an n-channel, open-drain, active-low output,
referenced to GND.
— 5 PGOOD Power-Good Output. PGOOD is an n-channel, open-drain, active-high output,
referenced to GND.
6 6 ON/OFF
ON/OFF Control Input. ON/OFF is referenced to GND. Drive ON/OFF above 1.38V or
leave unconnected to enable the device. Drive ON/OFF below 1V to disable the device.
ON/OFF is also used to adjust the UVLO threshold. Internally clamped to nominally 3V
through a 1kΩ resistor (See Figure 1). (See the Undervoltage Lockout section in the
Applications Information.)
— — EP Exposed Pad (TDFN only). Connect to GND.
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
6 _______________________________________________________________________________________
MAX5902L/MAX5903L turn off the MOSFET, discon-
necting the load immediately. If no circuit-breaker fault
exists, the MAX5902/MAX5903 assert the power-good
output. Then, if any of four conditions exist, the power-
good output deasserts and the MAX5902/MAX5903
turn off the MOSFET. The four conditions are: the volt-
age across the MOSFET exceeds the circuit-breaker
threshold; the supply voltage falls below the undervolt-
age lockout level; the die temperature exceeds
+125°C; or ON/OFF is forced low. After a circuit-break-
er fault, the MAX5902L/MAX5903L keep the MOSFET
off until the power is cycled, or the part is reset by tog-
gling ON/OFF low for 10ms (typ). After a circuit-breaker
fault, the MAX5902A/MAX5903A automatically restarts
in 150ms (typ). All versions automatically restart after a
thermal fault, or an undervoltage shutdown, if the fault
condition goes away for at least 150ms (typ).
ON/OFF offers external control of the MAX5902/
MAX5903, facilitating power-supply sequencing, and
may also be used to change the undervoltage lockout
(UVL) level. UVLO keeps the external MOSFET
switched off as long as the input voltage is below the
desired level.
A power-good output, PGOOD (MAX5902) or PGOOD
(MAX5903), asserts when the external MOSFET is fully
enhanced and the source-drain voltage is below the
circuit-breaker threshold. PGOOD and PGOOD are
open-drain outputs referenced to GND, and can with-
stand up to +72V.
GND
GATE DRAINVS
50kΩ
50Ω
50kΩ
50kΩ
MAX5902
ON/OFF PGOOD
V
I
VIN
GND
GATE DRAINVS
MAX5902
ON/OFF PGOOD
V
V
VIN
GND
GATE DRAINVS
MAX5902
ON/OFF PGOOD
VV
VIN
0 TO 0.5V
GND
GATE DRAINVS
MAX5902A
ON/OFF PGOOD
SCOPE
SCOPE
48V
CL
RL
GND
GATE DRAIN
IRFR5410
VS
MAX5902
ON/OFF PGOOD
SCOPE
SCOPE
SCOPE
SCOPE
48V
GND
GATE DRAINVS
MAX5902
ON/OFF PGOOD
SCOPE
SCOPE
SCOPE
48V
(a) SUPPLY CURRENT (d) RETRY TIMEOUT
(d) STARTUP WAVEFORMS
(d) CIRCUIT-BREAKER EVENT
(b) VUVLO
(b) GATE DRIVE VOLTAGE
Figure 2. Test Circuits
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
_______________________________________________________________________________________ 7
A thermal shutdown feature protects the external MOS-
FET by turning it off if the die temperature of the
MAX5902/MAX5903 exceeds +125°C. The MAX5902/
MAX5903 must be in good thermal contact with the
external MOSFET. See Layout Guidelines in the Appli-
cations section of the data sheet.
A circuit-breaker function monitors the voltage across
the external MOSFET, VSD, and turns off the MOSFET if
VSD exceeds the circuit-breaker threshold, VCB. The
circuit-breaker function is enabled after the MOSFET is
fully enhanced. Three threshold voltage options are
available—300mV, 400mV, and 500mV. One version is
available with no circuit-breaker function. Fault man-
agement for the MAX5902/MAX5903 is offered with two
different configurations; latched and automatic retry.
Latched Circuit Breaker
After a circuit-breaker trip event, the latched
versions (MAX5902L/MAX5903L) drive GATE to
VS, turning off the external MOSFET, and PGOOD
(PGOOD) is deasserted. A latched off condition
needs to be reset by toggling ON/OFF low for at
least 10ms, or by cycling the power supply, VS.
Automatic Retry Circuit Breaker
After a circuit-breaker trip event, the automatic retry
versions (MAX5902A/MAX5903A) drive GATE to VS,
turning off the external MOSFET, and PGOOD
(PGOOD) is deasserted. If the start conditions are met
for a full 150ms (tRS) the start sequence is re-initiated.
The start conditions are: the device is not in UVLO;
ON/OFF is not driven low; and the device is not in ther-
mal shutdown.
No Circuit Breaker
For the versions without a circuit breaker, MAX5902N
(MAX5903N), PGOOD (PGOOD) are asserted when the
MOSFET is fully enhanced. Once powered up the
MAX5902N/MAX5903N ignore the MOSFET drain-to-
source voltage for applications where a circuit-breaker
function is not desired.
Applications Information
ON/
OFF
Control Input
The ON/OFF control input provides three functions:
external ON/OFF control; setting of the UVLO level; and
resetting after a circuit-breaker event has caused the
MAX5902L/MAX5903L to turn off the external MOSFET.
Pulling ON/OFF to GND for at least 10ms (tOFF) forces
the MAX5902/MAX5903 to turn off the external MOSFET
(see Figure 3 for a circuit example). To reset the
MAX5902L/MAX5903L after a circuit-breaker event,
toggle ON/OFF to GND for at least 10ms (tOFF).
ON/OFF can be used to sequence power supplies.
Connecting a capacitor from ON/OFF to GND will delay
the rise of ON/OFF proportional to the capacitance and
input impedance of ON/OFF, typically 33kΩ(Figure 4).
The MAX5902/MAX5903 can be controlled by logic-
level signals. Logic-level signals of 3.3V or 1.8V may be
directly connected to ON/OFF. For 5V logic level control,
insert a series 47kΩresistor as shown in Figure 5.
Figure 4. Power-Supply Sequencing
HOT-SWAP CONTROLLER #1
VS
GND
C
2C
MAX5902
MAX5903
VS
ON/OFF
HOT-SWAP CONTROLLER #2
GND
VS
GND
MAX5902
MAX5903
ON/OFF
HOT-SWAP CONTROLLER
OPTIONAL
+24V
VS
GND
R2
40.2kΩ
R1
3.01kΩ
MAX5902
MAX5903
GND
DGND
ON/OFF
ON/OFF
Figure 3. Programmed +18V Lockout, with Optional Optocoupler
On/Off Control.
Turn-On and Turn-Off Delays
After power is applied, or ON/OFF is released, there is
a 150ms delay (tON) before the gate ramp is started.
This delay is also the automatic restart time delay.
In the event of a circuit-breaker condition or an over-
temperature fault condition, the turn-off delay is less
than 4µs. An undervoltage condition must exist for at
least 10ms (tOFF) before the MAX5902/MAX5903 turns
off the external MOSFET. ON/OFF must be held low for
at least 10ms (tOFF) before the MAX5902/MAX5903
turns off the external MOSFET. Turn-off delay minimizes
spurious shutdowns due to noisy signals or momentary
voltage spikes, as well as preventing accidental reset-
ting of the circuit-breaker latch (MAX5902L/MAX5903L).
Thermal Shutdown
A thermal shutdown feature helps protect the external
MOSFET. If the die temperature of the MAX5902/
MAX5903 exceeds +125°C, the MOSFET is turned off.
For accurate performance the MAX5902/MAX5903
must be in close thermal contact with the external MOS-
FET. See the Layout Guidelines section for information.
Due to the low power dissipation of the
MAX5902/MAX5903, its junction temperature will typi-
cally be within a few degrees of the MOSFET. All ver-
sions of the MAX5902/MAX5903 automatically restart
from a temperature fault when the junction temperature
drops below +110°C.
Undervoltage Lockout
The MAX5902/MAX5903 turns off the external MOSFET
if the magnitude of the input voltage is below the level
set by ON/OFF for longer than 10ms (tOFF). If ON/OFF
is left unconnected, the lockout voltage (VUVLO)
defaults to 31.5V. VUVLO may also be set to any value
within the power-supply range by using external resis-
tors. To set the lockout voltage to a value between +9V
and +72V use a resistor divider connected between VS
and GND, with the center node of the divider connect-
ed to ON/OFF. For example, use a 3kΩresistor (R1 in
Figure 3) from ON/OFF to GND and calculate the other
resistor, R2, using:
where VUVLO is the desired lockout voltage, and
VON/OFF is the ON/OFF reference threshold specified in
the Electrical Characteristics table (typically 1.26V).
Figure 3 shows an example circuit with VUVLO set for
+18V. To defeat the UVLO simply connect a single
100kΩresistor between ON/OFF and VS, as shown in
Figure 6.
The Power-Good Output
The power-good output, PGOOD (PGOOD), is open-
drain and asserts when the external MOSFET is fully
enhanced and VSD is less than the circuit-breaker
threshold (VCB). For versions without the circuit-breaker
function (MAX5902N/MAX5903N), PGOOD (PGOOD)
asserts when the external MOSFET is fully enhanced.
PGOOD (PGOOD) deasserts within 4µs when a circuit-
breaker event occurs or if the die temperature exceeds
+125°C. PGOOD (PGOOD) deasserts if VS< VUVLO for
longer than 10ms or ON/OFF is held low for longer than
10ms.
The MAX5902 PGOOD is active-low and the MAX5903
PGOOD is active-high. Both are open-drain n-channel
MOSFETs with their sources connected to GND, and
can withstand up to +72V.
RR V
V
UVLO
ON OFF
21 1 =× −
⎛
⎝
⎜
⎞
⎠
⎟
/
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
8 _______________________________________________________________________________________
HOT-SWAP CONTROLLER
+9V TO +72V
VS
GND
100kΩMAX5902
GND
ON/OFF
Figure 6. Defeating Undervoltage Lockout
HOT-SWAP CONTROLLER
5V LOGIC
GND
LOGIC CONTROL OF 3.3V OR LESS MAY BE CONNECTED
DIRECTLY TO THE MAX5902/MAX5903. FOR 5V LOGIC
CONTROL INSERT A SERIES 47kΩ RESISTOR AS SHOWN.
47kΩ
MAX5902
MAX5903
GND
ON/OFF
Figure 5. Logic Control
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
_______________________________________________________________________________________ 9
Selecting a Circuit-Breaker Threshold
The MAX5902A/MAX5903A and the MAX5902L/
MAX5903L offer a circuit-breaker function to protect the
external MOSFET and the load from the potentially
damaging effects of excessive current. As load current
flows through the external MOSFET, a voltage, VSD, is
generated from source to drain due to the MOSFET’s
on-resistance, RDS(ON). The MAX5902A/MAX5903A
and MAX5902L/MAX5903L monitor VSD when the exter-
nal MOSFET is fully enhanced. If VSD exceeds the
circuit-breaker threshold the external MOSFET is turned
off, and PGOOD (PGOOD) is deasserted. To accom-
modate different MOSFETs and different load currents
the MAX5902/MAX5903 are available with circuit-break-
er threshold voltages of 300mV, 400mV, and 500mV. To
determine the proper circuit-breaker threshold for an
application use:
VCB > (RDS(ON)) ✕ (IOUT(MAX))
where RDS(ON) is the on-resistance of the MOSFET and
IOUT(MAX) is the maximum expected output current.
The MAX5902N/MAX5903N have no circuit-breaker
function. For these parts choose an external MOSFET
which meets the load requirements.
The circuit-breaker function is intended to protect
against gross overcurrent or short-circuit conditions.
During a gross overcurrent or short-circuit condition,
the MAX5902/MAX5903 disconnect the load by dis-
abling the external MOSFET. For calculating the circuit-
breaker threshold use the MOSFET’s RON at the worst
possible operating condition, and add a 20% overcur-
rent margin to the maximum circuit current. For
instance, if a MOSFET has an RON of 0.06Ωat TA=
+25°C, and a normalized on-resistance factor of 1.75 at
TA= +130°C (from the MOSFET data sheet), the RON
used for calculation is the product of these two num-
bers, or (0.06Ω) x (1.75) = 0.105Ω. Then, if the maxi-
mum current is expected to be 2A, using a 20%
margin, the current for calculation is (2A) x (1.2) = 2.4A.
The resulting minimum circuit-breaker threshold is then
a product of these two results, or (0.105Ω) x (2.4A) =
0.252V. The next highest minimum available threshold
is 0.280V of the MAX5902ABEUT, which is an ideal
choice given these parameters. Using this method to
choose a circuit-breaker threshold allows the circuit to
operate under worst case conditions without causing a
circuit-breaker fault, but the circuit-breaker function will
still operate if a short circuit, or a gross overcurrent
condition exists.
Determining Inrush Current
Determining a circuit’s inrush current is necessary to
help choose the proper MOSFET. The MAX5902/
MAX5903 regulate the inrush current by means of con-
trolling the load voltage slew rate, but inrush current is
also a function of load capacitance. Determine inrush
current using:
where C is the load capacitance, and SR is the
MAX5902/MAX5903 Load Voltage Slew-Rate
Magnitude from the Electrical Characteristics table. For
example, assuming a load capacitance of 100µF, and
using the typical value of 9V/ms for the slew rate, the
inrush current is 0.9A typical.
If the maximum possible Load Voltage Slew Rate is
used, the maximum inrush current calculates to 1.8A.
Choose a MOSFET with a maximum pulsed current
specification that exceeds the maximum inrush current.
IC
dV
dt CSR==×
GROUND
POWER IN
POWER
OUT
M1
SOT-223
SDG
U1
SOT23-6 MAX5902/MAX5903
Figure 7. Circuit Board Layout Example.
MAXIMUM
ILOAD (A)
SUGGESTED
EXTERNAL
MOSFET
SUGGESTED MAXIM
PART
0.5
IRF9540NS
MAX5902AAEUT
1
IRF9540NS
MAX5902ABEUT
2
IRF5210S
MAX5902ABEUT
3
IRF5210S
MAX5902ACEUT
VIN = +9V to +72V
MAX5902/MAX5903
Suggested External MOSFETs
Layout Guidelines
Good thermal contact between the MAX5902/
MAX5903 and the external MOSFET is essential for the
thermal shutdown feature to operate effectively. Place
the MAX5902/MAX5903 as close as possible to the
drain of the external MOSFET, and use wide circuit
board traces for good heat transfer. See Figure 7 for an
example of a PC board layout.
Chip Information
TRANSISTOR COUNT: 658
PROCESS TECHNOLOGY: BiCMOS
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
10 ______________________________________________________________________________________
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
______________________________________________________________________________________ 11
Selector Guide
PART CIRCUIT-BREAKER
FUNCTION
CIRCUIT-BREAKER
THRESHOLD
(mV)
POWER-GOOD
OUTPUT LOGIC TOP MARK
MAX5902NNEUT+ None None Active-Low AASM
MAX5902AAEUT+ Autoretry 300 Active-Low AASA
MAX5902ABEUT+ Autoretry 400 Active-Low AASB
MAX5902ACEUT+ Autoretry 500 Active-Low AASC
MAX5902LAEUT+ Latched 300 Active-Low AASD
MAX5902LBEUT+ Latched 400 Active-Low AASE
MAX5902LCEUT+ Latched 500 Active-Low AASF
MAX5903NNEUT+ None None Active-High AASN
MAX5903AAEUT+ Autoretry 300 Active-High AASG
MAX5903ABEUT+ Autoretry 400 Active-High AASH
MAX5903ACEUT+ Autoretry 500 Active-High AASI
MAX5903LAEUT+ Latched 300 Active-High AASJ
MAX5903LBEUT+ Latched 400 Active-High AASK
MAX5903LCEUT+ Latched 500 Active-High AASL
PART CIRCUIT-BREAKER
FUNCTION
CIRCUIT-BREAKER
THRESHOLD
(mV)
POWER-GOOD
OUTPUT LOGIC TOP MARK
MAX5902NNETT+ None None Active-Low AKH
MAX5902AAETT+ Autoretry 300 Active-Low AKI
MAX5902ABETT+ Autoretry 400 Active-Low AKJ
MAX5902ACETT+ Autoretry 500 Active-Low AKK
MAX5902LAETT+ Latched 300 Active-Low AKL
MAX5902LBETT+ Latched 400 Active-Low AKM
MAX5902LCETT+ Latched 500 Active-Low AKN
MAX5903NNETT+ None None Active-High AKO
MAX5903AAETT+ Autoretry 300 Active-High AKP
MAX5903ABETT+ Autoretry 400 Active-High AKQ
MAX5903ACETT+ Autoretry 500 Active-High AKR
MAX5903LAETT+ Latched 300 Active-High AKS
MAX5903LBETT+ Latched 400 Active-High AKT
MAX5903LCETT+ Latched 500 Active-High AKU
SOT23
TDFN
+Denotes lead-free package.
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
12 ______________________________________________________________________________________
Typical Operating Circuits (continued)
VS
ON/OFF
HOT-SWAP CONTROLLER
GND
GND
50W ISOLATED
POWER SUPPLY
GND
*THE MAX5003 IS A 110V PWM CONTROLLER
INDIV
V+
1MΩ
39kΩ
MAX5003*
GATE
DRAIN
PGOOD
IRFR5410
+48V
BACKPLANE CIRCUIT CARD
MAX5903
3
2
1
4
5
6
MAX5902
MAX5903
VS
DRAIN
GATE
ON/OFF
PGOOD (PGOOD)
GND
* EXPOSED PAD
( ) ARE FOR MAX5903 ONLY.
* EXPOSED PAD CONNECTED TO GND.
TDFN
3mm x 3mm
TOP VIEW
Pin Configurations (continued)
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
______________________________________________________________________________________ 13
6LSOT.EPS
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
MAX5902/MAX5903
+72V, SOT23/TDFN, Simple Swapper Hot-Swap
Controllers
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
6, 8, &10L, DFN THIN.EPS
H12
21-0137
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
COMMON DIMENSIONS
SYMBOL MIN. MAX.
A 0.70 0.80
D 2.90 3.10
E 2.90 3.10
A1 0.00 0.05
L 0.20 0.40
PKG. CODE N D2 E2 eJEDEC SPEC b[(N/2)-1] x e
PACKAGE VARIATIONS
0.25 MIN.k
A2 0.20 REF.
2.30±0.101.50±0.106T633-1 0.95 BSC MO229 / WEEA 1.90 REF0.40±0.05
1.95 REF0.30±0.050.65 BSC2.30±0.108T833-1
2.00 REF0.25±0.050.50 BSC2.30±0.1010T1033-1
2.40 REF0.20±0.05- - - - 0.40 BSC1.70±0.10 2.30±0.1014T1433-1
1.50±0.10
1.50±0.10
MO229 / WEEC
MO229 / WEED-3
0.40 BSC - - - - 0.20±0.05 2.40 REFT1433-2 14 2.30±0.101.70±0.10
T633-2 6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF
T833-2 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF
T833-3 8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF
-DRAWING NOT TO SCALE-
H
22
21-0137
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
2.30±0.10 MO229 / WEED-3 2.00 REF0.25±0.05
0.50 BSC
1.50±0.1010T1033-2
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
ENGLISH • ???? • ??? • ???
WHAT'S NEW
PRODUCTS
SOLUTIONS
DESIGN
APPNOTES
SUPPORT
BUY
COMPANY
MEMBERS
Maxim > Products > Hot-Swap and P ower Switching
MAX5902, MAX5903
+72V SOT23/TDFN Simple Swapper Hot-Swap Controllers
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Technical Documents
Ordering Info
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All
Ordering Information
Notes:
Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.1.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one
business day.
2.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data
Sheet or Part Naming Conventions.
3.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses.4.
Devices: 1-112 of 112
MAX5902
Free
Sam ple
Buy
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free?
Materials Analysis
MAX5902LBEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902LC EUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902ABEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902NNEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902LAEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902LAEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902ACEUT+T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902ACEUT+
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902ABEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902AAEUT+T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LBEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902AAEUT+
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LC EUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902NNEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5902AAEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ACEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LBEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LAEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ABEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LC EUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902NNEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LAEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LBEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LC EUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ACEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902NNEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ABEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902AAEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ABETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902AAETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ACETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902ACETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ABETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LAETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902AAETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LBETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LBETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LC ETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LC ETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902NNETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902NNETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LAETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902AAETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LC ETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902NNETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LC ETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LBETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902LBETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902AAETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ABETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902ABETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ACETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LAETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5902LAETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902ACETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5902NNETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903
Free
Sam ple
Buy
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free?
Materials Analysis
MAX5903ABEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5903ACEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5903LAEUT+
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5903NNEUT+T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903NNEUT+
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LC EUT+T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LC EUT+
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LBEUT+T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LBEUT+
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LAEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5903ABEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5903ACEUT+T
-40C to +85C
RoHS/Lead-Free: See data sheet
MAX5903AAEUT+T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903AAEUT+
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F+6*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LC EUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LBEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LAEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ABEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903NNEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903AAEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ACEUT
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903NNEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LC EUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LBEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LAEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ACEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903AAEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ABEUT-T
SOT-23;6 pin;9 mm
Dwg: 21-0058I (PDF)
Use pkgcode/variation: U6F-6*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ABETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LAETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LAETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LBETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LBETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LC ETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LC ETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ACETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903NNETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903ACETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903ABETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903NNETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903AAETT
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903AAETT+
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903NNETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903NNETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LC ETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LC ETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LBETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LBETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903LAETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903LAETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903ACETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ACETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903ABETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
MAX5903ABETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903AAETT+T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633+2*
-40C to +85C
RoHS/Lead-Free: Lead Free
Materials Analysis
MAX5903AAETT-T
THIN QFN (Dual);6 pin;10 mm
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T633-2*
-40C to +85C
RoHS/Lead-Free: No
Materials Analysis
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Document Ref.: 19-1988; Rev 3; 2007-01-12
This page las t modified: 2 0 0 7 -06-15
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