General Description
The MAX14523A/MAX14523AL/MAX14523B/MAX14523C
programmable current-limit switches feature internal
current limiting to prevent damage to host devices due
to faulty load conditions. These current-limit switches
feature a low 70mΩon-resistance and operate from a
+1.7V to +5.5V input voltage range. The current limit is
adjustable from 250mA to 1.5A, making these devices
ideal for SDIO (secure digital input/output) and other
load-switching applications.
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX14523A/MAX14523AL go into an autoretry mode,
the MAX14523B latches off the switch, and the
MAX14523C features a continuous current-limit mode.
Additional safety features include thermal shutdown to
prevent overheating and reverse-current blocking to
prevent current from being driven back into the source.
The MAX14523A/MAX14523AL/MAX14523B/MAX14523C
are available in a tiny 8-pin, 3mm x 3mm, TDFN pack-
age and operate over the -40°C to +125°C automotive
temperature range.
Applications
SDIO Ports
USB Ports
Notebook VGA Ports
GPS
Cell Phones
MP3 Players
UTCA/ATCA Platforms
Features
♦Accurate (±10%) Overload Current Limit
♦Adjustable Current-Limit Threshold
♦Low-Dropout Voltage (70mV at 1A Load Current)
♦Short-Circuit Protection
♦Thermal-Shutdown Protection
♦Reverse-Current Protection
♦170µA (typ) Supply Current
♦Shutdown Reverse Current, 0.6µA (max)
♦+1.7V to +5.5V Supply Voltage Range
♦Tiny 8-Pin, 3mm x 3mm, TDFN Package
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
________________________________________________________________
Maxim Integrated Products
1
Ordering Information/Selector Guide
MAX14523A
MAX14523AL
MAX14523B
MAX14523C
1μF
RSETI
10kΩ
BIAS
VOLTAGE
LOAD
CHARGE
PUMP
CONTROL
LOGIC
POWER
SUPPLY
μP
CURRENT
REFERENCE
GND
N.C.
1μF
OUTIN
FLAG
ON(ON)*
VPULLUP
*ON FOR THE MAX14523AL ONLY.
Typical Operating Circuit
19-4814; Rev 1; 1/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART PIN-PACKAGE TOP MARK ON POLARTIY OVERCURRENT RESPONSE
MAX14523AATA+ 8 TDFN-EP* BLO Active-High Autoretry
MAX14523ALATA+** 8 TDFN-EP* BLP Active-Low Autoretry
MAX14523BATA+ 8 TDFN-EP* BLQ Active-High Latch-Off
MAX14523BATA/V+T 8 TDFN-EP* BLQ Active-High Latch-Off
MAX14523CATA+ 8 TDFN-EP* BLS Active-High Continuous
Pin Configuration appears at end of data sheet.
Note: All devices are specified over the -40°C to +125°C operating temperature range.
+
Denotes a lead(Pb)-free package/RoHs-compliant package.
/V denotes an automotive qualified part.
*
EP = Exposed pad.
**
Future product—contact factory for availability.
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VIN = +1.7V to +5.5V, RSETI = 94.2kΩ, CIN = COUT = 1µF, and TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values
are at VIN = +3.3V, TA= +25°C.) (Note 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.
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
(All voltages referenced to GND.)
IN, ON, ON, FLAG, OUT, and SETI to GND .............-0.3V to +6V
Current into Any Pin (Except IN, OUT)................................20mA
Out Short Circuit to GND...................................Internally Limited
Continuous Power Dissipation (TA= +70°C) for multilayer board:
TDFN (derate 24.4mW/°C above +70°C)...................1952mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PACKAGE THERMAL CHARACTERISTICS (Note 1)
TDFN
Junction-to-Ambient Thermal Resistance (θJA) ...........41°C/W
Junction-to-Case Thermal Resistance (θJC) ..................8°C/W
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SUPPLY OPERATION
Operating Voltage VIN 1.7 5.5 V
Quiescent Current IQ I
OUT = 0A, switch on, VIN = 3.3V 170 300 μA
Latchoff Current ILATCH VIN = 3.3V, IOUT = 0A , after an overcurrent
fault (MAX14523B) 10 20 μA
Shutdown Forward Current ISHDN VON = 0V, VON = VIN, VIN = 5.5V, VOUT = 0V 0.5 7 μA
Shutdown Reverse Current IRSHDN VON = 0V, VON = VIN, VIN = 1.7V, VOUT =
5.5V (current into OUT) 0.01 0.6 μA
INTERNAL FET
Switch-On Resistance RON VIN = 3.3V, IOUT lower than ILIM 70 130 m
RSETI = 91.78k, VIN - VOUT = 1V 1350 1500 1650
Forward-Current Limit ILIM RSETI = 563.12k, VIN - VOUT = 1V 225 250 275 mA
(RSETI +2.48k) × ILIM Product ILIM = 250mA to 1500mA,
VIN - VOUT = 1V 127.2 141.4 155.5 kV
Reverse Blocking Current VOUT > VIN + 140mV, after reverse-current-
limit shutdown 2 μA
Reverse Blocking Threshold VOUT - VIN VOUT - VIN = 300mV, OUT falling until
switch turns on 40 95 140 mV
FLAG Assertion Drop Voltage
Threshold VFA Increase (VIN - VOUT) drop until FLAG
asserts, IOUT limiting, VIN = 3.3V 350 mV
ON, ON INPUT
ON, ON Input Leakage ILEAK V
ON, VON = VIN or VGND -1 +1 μA
ON, ON Input Logic-High Voltage VIH 1.6 V
ON, ON Input Logic-Low Voltage VIL 0.4 V
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FLAG OUTPUT
FLAG Output Logic-Low Voltage I
SINK
= 1mA 0.4 V
FLAG Output Leakage Current V
IN
= V
FLAG
= 5.5V, FLAG deasserted 1 μA
DYNAMIC
Turn-On Time t
SS
Time from ENABLE signal to V
OUT
= 90%
of V
IN
= 3.3V, Figure 1 1 ms
Turn-Off Time t
OFF
Time from DISABLE signal to V
OUT
= 10%
of V
IN
= 3.3V, R
L
= 20, Figure 1 250 μs
Current-Limit Reaction Time t
LIM
V
IN
= 3.3V, R
SETI
= 91.78k to 563.12k,
output high and then short-circuit applied 3 μs
Blanking Time t
BLANK
(Note 3) 10 14.5 25 ms
Retry Time t
RETRY
MAX14523A/MAX14523AL (Note 3) 320 875 ms
THERMAL PROTECTION
Thermal Shutdown Low-to-high +170 °C
Thermal Shutdown Hysteresis 15 °C
ELECTRICAL CHARACTERISTICS (continued)
(VIN = +1.7V to +5.5V, RSETI = 94.2kΩ, CIN = COUT = 1µF, and TA= TJ= -40°C to +125°C, unless otherwise noted. Typical values
are at VIN = +3.3V, TA= +25°C.) (Note 2)
Note 2: All devices are 100% tested at 125°C. Electrical limits across the full temperature range are guaranteed by design and correlation.
Note 3: Blanking time and retry time are generated by the same oscillator. Therefore, the ratio of is a constant value of 32.
See Figures 2 and 3.
t
t
RETRY
BLANK
tSS
tOFF
VOUT
10% VIN
90% VIN
ON(ON)*
*( ) THE POLARITY OF THE SIGNAL IS REVERSED FOR THE MAX14523AL ONLY.
Figure 1. Timing Diagram for Measuring Turn-On Time (tSS) and Turn-Off Time (tOFF)
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
4 _______________________________________________________________________________________
tRETRY
tBLANK tBLANK
tBLANK tBLANK
tRETRY
FLAG
OUT
CURRENT LIMIT
LOAD CURRENT THE DEVICE GOES TO
THERMAL-SHUTDOWN MODE
Figure 2. Autoretry Fault Diagram
tBLANK
tBLANK
FLAG
OUT
CURRENT LIMIT
LOAD CURRENT
THE DEVICE GOES TO
THERMAL-SHUTDOWN MODE
Figure 3. Latchoff Fault Diagram
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
_______________________________________________________________________________________ 5
CURRENT LIMIT vs. SUPPLY VOLTAGE
MAX14523A toc01
SUPPLY VOLTAGE (V)
CURRENT LIMIT (A)
4.553.602.65
1.45
1.50
1.55
1.60
1.40
1.70 5.50
NORMALIZED CURRENT LIMIT
vs. TEMPERATURE
MAX14523A toc02
TEMPERATURE (°C)
NORMALIZED CURRENT LIMIT
925926-7
0.95
1.00
1.05
1.10
0.90
-40 125
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX14523A toc03
SUPPLY VOLTAGE (V)
QUIESCENT SUPPLY CURRENT (μA)
4.553.602.65
150
200
250
300
100
1.70 5.50
QUIESCENT SUPPLY CURRENT
vs. TEMPERATURE
MAX14523A toc04
TEMPERATURE (°C)
QUIESCENT SUPPLY CURRENT (μA)
925926-7
150
200
250
300
100
-40 125
VIN = +5V
VIN = +3.3V
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX14523A toc05
TEMPERATURE (°C)
QUIESCENT SUPPLY CURRENT (μA)
925926-7
1
2
3
4
5
6
7
8
9
10
0
-40 125
VON = 0V
VIN = +5V
VIN = +3.3V
SHUTDOWN FORWARD CURRENT
vs. TEMPERATURE
MAX14523A toc06
TEMPERATURE (°C)
SHUTDOWN FORWARD CURRENT (μA)
925926-7
1
2
3
4
5
6
7
8
9
10
0
-40 125
VON = 0V, VOUT = 0V
VIN = +5.5V
VIN = +1.7V
Typical Operating Characteristics
(VIN = +3.3V, CIN = 1µF, COUT = 1µF, RSETI = 94.2kΩ, TA= +25°C, unless otherwise noted.)
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VIN = +3.3V, CIN = 1µF, COUT = 1µF, RSETI = 94.2kΩ, TA= +25°C, unless otherwise noted.)
NORMALIZED ON-RESISTANCE
vs. SUPPLY TEMPERATURE
MAX14523A toc10
TEMPERATURE (°C)
NORMALIZED ON-RESISTANCE
925926-7
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
0.5
-40 125
SWITCH TURN-ON TIME
vs. SUPPLY TEMPERATURE
MAX14523A toc11
TEMPERATURE (°C)
SWITCH TURN-ON TIME (ms)
925926-7
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
0.5
-40 125
VIN = +3.3V
VIN = +5.0V
RLOAD = 20Ω
SWITCH TURN-OFF TIME
vs. SUPPLY TEMPERATURE
MAX14523A toc12
TEMPERATURE (°C)
SWITCH TURN-OFF TIME (μs)
925926-7
100
200
300
400
500
600
700
800
900
1000
0
-40 125
VIN = +3.3V
VIN = +5.0V
RLOAD = 20Ω
SHUTDOWN REVERSE CURRENT
vs. TEMPERATURE
MAX14523A toc07
TEMPERATURE (°C)
SHUTDOWN REVERSE CURRENT (μA)
925926-7
1
2
3
4
5
6
7
8
9
10
0
-40 125
VON = 0V, VIN = +1.7V, VOUT = +5.5V
LATCHOFF CURRENT
vs. TEMPERATURE
MAX14523A toc08
TEMPERATURE (°C)
LATCHOFF CURRENT (μA)
925926-7
5
10
15
20
25
30
0
-40 125
MAX14523B
VIN = +5.5V
VIN = +3.3V
NORMALIZED ON-RESISTANCE
vs. SUPPLY VOLTAGE
MAX14523A toc09
VOLTAGE (V)
NORMALIZED ON-RESISTANCE
4.553.602.65
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
0.80
1.70 5.50
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(VIN = +3.3V, CIN = 1µF, COUT = 1µF, RSETI = 94.2kΩ, TA= +25°C, unless otherwise noted.)
CURRENT LIMIT RESPONSE
MAX14523A toc13
2
μ
s/div
VOUT
2V/div
IOUT
10A/div
SUDDEN SHORT
APPLIED AT OUTPUT
CURRENT LIMIT RESPONSE
MAX14523A toc14
20ms/div
VOUT
2V/div
IOUT
1A/div
RLOAD = 16.5Ω TO SUDDEN SHORT
APPLIED AT OUTPUT
FLAG RESPONSE (OVERLOAD CONDITION)
MAX14523A toc15
20ms/div
VFLAG
2V/div
IOUT
1A/div
RLOAD = 16.5Ω TO SUDDEN SHORT
APPLIED AT OUTPUT
Pin Description
PIN
MAX14523AL
MAX14523A
MAX14523B
MAX14523C
NAME FUNCTION
1, 6 1, 6 N.C. No Connection. Not internally connected. Connect N.C. to GND or leave unconnected.
2 2 FLAG
Open-Drain, Overload Indicator Output. FLAG goes low when the overload fault
duration exceeds the blanking time, reverse current is detected, thermal shutdown
mode is active, or SETI is connected to ground.
3 3 SETI
Overload-Current Limit Adjust. Connect a resistor from SETI to GND to program the
overcurrent limit. If SETI is connected to GND the switch turns off and FLAG is
asserted. If SETI is unconnected the current limit is at 0mA. Do not connect any
capacitance larger than 20pF to SETI.
4 4 OUT Switch Output. Bypass OUT with a 1μF capacitor to GND.
5 5 IN
Power Input. Bypass IN with a 1μF ceramic capacitor to GND. Use higher
capacitance if necessary to prevent large load transients from pulling down the
supply voltage.
7ON Active-Low, Switch-ON Input. Drive ON low to turn on the switch.
7 ON Active-High, Switch-ON Input. Drive ON high to turn on the switch.
8 8 GND Ground
— — EP
Exposed Pad. Internally connected to GND. For enhanced thermal dissipation,
connect EP to a large copper ground plane. Do not use EP as the sole ground
connection.
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
8 _______________________________________________________________________________________
Functional Diagram
MAX14523A
MAX14523AL
MAX14523B
MAX14523C
BUFFER
IN
N.C.
THERMAL
SHUTDOWN
CONTROL
LOGIC
REVERSE-
CURRENT
PROTECTION
TIMING
CIRCUITRY
BUFFER
CURRENT
LIMIT
BANDGAP
REFERENCE
OUT
FLAG
SETI
*( ) FOR THE MAX14523AL ONLY
ON/(ON)*
GND
Detailed Description
The MAX14523A/MAX14523AL/MAX14523B/MAX14523C
programmable current-limit switches operate from
+1.7V to +5.5V and provide internal current limiting
adjustable from 250mA to 1.5A. These devices feature
a fixed blanking time, and a FLAG output that notifies
the processor when a fault condition is present.
Programmable Current Limit/Threshold
A resistor from SETI to GND sets the current
limit/threshold for the switch (see the
Setting the
Current Limit/Threshold
section). If the output current is
limited at the current threshold value for a time equal to
or longer than tBLANK, the output flag asserts and the
MAX14523A/MAX14523AL enter the autoretry mode,
the MAX14523B latches off the switch, and the
MAX14523C enters the continuous current-limit mode.
Autoretry (MAX14523A/MAX14523AL)
When the forward current reaches the current thresh-
old, the tBLANK timer begins counting (Figure 2). FLAG
asserts if the overcurrent condition is present for
tBLANK or longer. The timer resets if the overcurrent
condition disappears before the blanking time (tBLANK)
has elapsed. A retry time delay (tRETRY) starts immedi-
ately after the blanking time has elapsed. During that
time, the switch latches off. At the end of tRETRY, the
switch turns on again. If the fault still exists, the cycle
repeats. If the fault has been removed, the switch stays
on. During this cycle, FLAG stays low. In autoretry, if
the die temperature exceeds +170°C (typ) due to self
heating, the MAX14523A/MAX14523AL go into thermal
shutdown until the die temperature drops by approxi-
mately 15°C (see the
Thermal Shutdown
section.)
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
_______________________________________________________________________________________ 9
The autoretry feature saves system power in case of an
overcurrent or short-circuit condition. During tBLANK
time, when the switch is on, the supply current is held
at the current limit. During time tRETRY, when the switch
is off, the current through the switch is zero. Thus, the
average output current is much less than the pro-
grammed current limit. Calculate the average output
current using the following equation:
ILOAD = ILIM [(tBLANK )/(tBLANK + tRETRY)]
With a typical tBLANK = 17.5ms and typical tRETRY =
560ms, the duty cycle is 3%, resulting in a 97% power
savings over the switch being on the entire time.
Latchoff (MAX14523B)
When the forward current reaches the current thresh-
old, the tBLANK timer begins counting (Figure 3). FLAG
asserts if an overcurrent condition is present for greater
than tBLANK time. The timer resets if the overcurrent
condition disappears before tBLANK has elapsed.
The switch turns off if the overcurrent condition contin-
ues beyond the blanking time. Reset the switch by
either toggling the control logic (ON or ON) or cycling
the input voltage. If the die temperature exceeds
+170°C (typ) due to self heating, the MAX14523B goes
into thermal shutdown until the die temperature
drops by approximately 15°C (see the
Thermal
Shutdown
section).
Continuous Current Limit (MAX14523C)
When the forward current reaches the forward-current
threshold, the MAX14523C limits the output current to
the programmed current limit. FLAG asserts if the cur-
rent limit is present for tBLANK and deasserts when the
overload condition is removed. In this mode, if die tem-
perature exceeds +170°C (typ) due to self heating, the
MAX14523C goes into thermal shutdown until the die
temperature drops by approximately 15°C (see the
Thermal Shutdown
section).
Switch-On/Off Control
The ON input for the MAX14523A/MAX14523B/
MAX14523C and ON input for the MAX14523AL control
the switch, see Table 1. Toggle ON for the MAX14523B
to reset the fault condition once the short-circuit current
is detected and the device shuts down.
Reverse-Current Protection
The MAX14523A/MAX14523AL/MAX14523B/MAX14523C
feature a reverse-current protection circuit that limits
the backflow current to 2µA when the reverse-current
protection circuitry has tripped. The switch turns off and
FLAG asserts without waiting for tBLANK to elapse. The
switch turns back on and FLAG deasserts when VIN -
VOUT drops below the reverse-current threshold by
95mV (typ).
FLAG Indicator
FLAG is an open-drain fault indicator output and
requires an external pullup resistor to a DC supply.
FLAG goes low when any of the following conditions
occur:
• The blanking time has elapsed
• The reverse-current protection has tripped
• The die temperature exceeds +170°C
• SETI is connected to ground.
Thermal Shutdown
Thermal-shutdown circuitry protects the devices from
overheating. The switch turns off and FLAG goes low
immediately when the junction temperature exceeds
+170°C (typ). The switch turns on again after the
device temperature drops by approximately 15°C (typ).
Applications Information
Setting the Current Limit/Threshold
A resistor from SETI to ground programs the current
limit/threshold value for the MAX14523A/MAX14523AL/
MAX14523B/MAX14523C. Table 2 lists various current
limit/thresholds set by different resistor values at SETI.
Leaving SETI unconnected selects a 0 current
limit/threshold. Connecting SETI to ground asserts
FLAG.
Use the following formula to calculate the current limit:
Rk V
ImA k
SETI LIM
() ()
() .( )ΩΩ=−
141400 248
MAX14523A
MAX14523B
MAX14523C
MAX14523AL
ON ON
SWITCH STATUS
0 1 Off
1 0 On
Table 1. Switch Truth Table
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
10 ______________________________________________________________________________________
Do not use an RSETI value smaller than 91.78kΩ.
Note: Connecting any capacitance larger than 20pF to
SETI can cause instability.
IN Bypass Capacitor
Connect a minimum of 1µF capacitor from IN to GND to
limit the input voltage drop during momentary output
short-circuit conditions. Larger capacitor values further
reduce the voltage undershoot at the input.
OUT Bypass Capacitor
For stable operation over the full temperature range
and over the full-programmable current-limit range, use
a 1µF ceramic capacitor from OUT to ground.
Excessive output capacitance can cause a false over-
current condition due to decreased dv/dt across the
capacitor. Calculate the maximum capacitive load
(CMAX) value that can be connected to OUT using the
following formula:
For example, for VIN = 3.3V, tBLANK = 10ms, and ILIM =
300mA, CMAX equals 909µF.
Layout and Thermal Dissipation
To optimize the switch response time to output short-
circuit conditions, it is very important to keep all traces
as short as possible to reduce the effect of undesirable
parasitic inductance. Place input and output capacitors
as close as possible to the device (no more than 5mm).
IN and OUT must be connected with wide short traces
to the power bus. During normal operation, the power
dissipation is small and the package temperature
change is minimal. If the output is continuously shorted
to ground at the maximum supply voltage, the opera-
tion of the switches with the autoretry option does not
cause problems because the total power dissipated
during the short is scaled by the duty cycle:
Attention must be given to the MAX14523C continuous
current-limit version when the power dissipation during
a fault condition can cause the device to reach the ther-
mal shutdown threshold.
Chip Information
PROCESS: BiCMOS
PVI t
tt
MAX IN MAX OUT MAX BLANK
RETRY BLA
() () ()
=××
+NNK
CµF
ImAt ms
VV
MAX LIM BLANK MIN
IN
() () ()
()
()
=×
RSETI (k) TYPICAL CURRENT LIMIT/THRESHOLD (mA)
91.78 1500
121 1145
221 632
301 466
422 333
563.12 250
(Open) 0
Table 2. Current Limit/Threshold vs.
Resistor Values
Pin Configuration
MAX14523A
MAX14523AL
MAX14523B
MAX14523C
1+
TDFN
3mm x 3mm
N.C.
2FLAG
3SETI
4OUT
8 GND
7 ON(ON)**
6 N.C.
5IN
*CONNECT EXPOSED PAD TO GND.
**( ) FOR THE MAX14523AL ONLY.
*EP
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
8 TDFN-EP T833+2 21-0137 90-0059
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________
11
© 2011 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 7/09 Initial release —
1 1/11 Added the MAX14523BATA automotive-grade part to the Ordering Information 1
