November 2006
LM3658
Dual Source USB/AC Li Chemistry Charger IC for Portable
Applications
General Description
The LM3658 is a single chip charger IC designed for handheld
applications. It can safely charge and maintain a single cell
Li-Ion/Polymer battery operating from an AC wall adapter or
USB power source. Input power source selection of USB/AC
is automatic. With both power sources present, the AC power
source has priority. Charge current is programmed through
an external resistor when operating from an AC wall adapter
allowing charge currents from 50 mA to 1000 mA. When the
battery is charged using USB power, charge currents of 100
mA or 500 mA are pin-selectable. The termination voltage is
controlled to within ±0.35% of 4.2V.
The LM3658 requires few external components and inte-
grates internal power FETs, reverse current protection and
current sensing. The internal power FETs are thermally reg-
ulated to obtain the most efficient charging rate for a given
ambient temperature.
The LM3658 operates in five modes: pre-qualification mode,
constant-current mode, constant-voltage mode, top-off mode
and maintenance mode. Additionally, the charger IC operates
as a linear regulator in “LDO mode”, when the AC wall adapter
is connected and no battery is present. Optimal battery man-
agement is obtained through thermal regulation, battery tem-
perature measurement and multiple safety timers. The
LM3658 provides two open-drain outputs for LED status in-
dication or connection to GPIOs.
Features
Integrated power FETs with thermal regulation
Charges from either an AC wall adapter or USB power
source with automatic source selection
50 mA to 1000 mA charge currents using AC wall adapter
Pin-selectable USB charge currents of 100 mA or
500 mA
LDO mode with 1A of source current is automatically
invoked when the battery is absent and the AC wall
adapter is connected
Continuous battery temperature monitoring
Built-in multiple safety timers
Charge status indication
Continuous over-current and temperature protection
Near-depleted battery pre-conditioning
Sleep mode with ultra low quiescent current
On-board Kelvin-sensing achieves ±0.35% termination
accuracy
Maintenance mode with automatic recharge
Thermally enhanced 3 mm x 3 mm LLP package
Applications
Smartphones
Digital still cameras
PDAs
Hard Drive and flash-based MP3 players
USB-powered devices
Typical Application
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© 2007 National Semiconductor Corporation 201282 www.national.com
LM3658 Dual Source USB/AC Li Chemistry Charger IC for Portable Applications
Connection Diagram and Package Mark Information
LLP10 Package Drawing
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Note: The actual physical placement of the package marking will vary from part to part. The package marking “X” is the manufacturing plant code. “YY” is a 2-
digit date code, and "ZZ" for die traceability. These codes will vary considerably. "L111B” identifies the device (part number, option, etc.).
Pin Descriptions
Pin # Name Description
1 CHG_IN AC wall adapter input pin.
2 USBpwr USB power input pin.
3 GND Power and signal ground pin.
4 USB_sel Pulling this pin low limits the USB charge current to 100 mA. Pulling this pin high limits the USB charge current
to 500 mA.
5 EN_b Pulling this pin low enables the charger. Pulling this pin high disables the charger.
6 STAT2 Active low open-drain output. Indicates charger status. This pin is capable of driving an LED as well as GPIOs.
See Operation Description section for more detail.
7 STAT1 Active low open-drain output. Indicates charger status. This pin is capable of driving an LED as well as GPIO.
See Operation Description section for more detail.
8 ISET A resistor is connected between this pin and GND. The resistor value determines the full-rate charge current
when using the AC source.
9 TSBattery temperature sense pin. This pin must be connected to battery pack’s temperature sense output pin.
For the LM3658SD-B version, leaving this pin open indicates that the battery pack is not present. The charger
IC will invoke LDO mode if this pin is left floating. See Operation Description section for more detail.
10 BATT Positive battery terminal connection.
Ordering Information
Order Number 5 Hour
Timer
Selectable
Timer LDO Mode No LDO
Mode
Package
Marking Supplied As
LM3658SD X X L111B 1000 units, Tape-and-Reel
LM3658SDX X X L111B 4500 units, Tape-and-Reel
LM3658SD-A X X L155B 1000 units, Tape-and-Reel
LM3658SDX-A X X L155B 4500 units, Tape-and-Reel
LM3658SD-B X X L156B 1000 units, Tape-and-Reel
LM3658SDX-B X X L156B 4500 units, Tape-and-Reel
For more information on the various options, please refer to Operation Description section.
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LM3658
Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
CHG_IN, USBpwr (VCC)−0.3V to +6.5V
All other pins except GND −0.3V to CHG_IN or
USBpwr
Power Dissipation (Note 3) Internally Limited
Junction Temperature (TJ-MAX) +150°C
Storage Temperature Range −65°C to +150°C
ESD Rating (Note 4)
Human Body Model:
Machine Model:
2.0 kV
200V
Operating Ratings (Notes 1, 2)
Input Voltage Range for CHG_IN 4.5V to 6.0V
Input Voltage Range for USB_pwr 4.35V to 6.0V
Recommended Load Current 0 to 1000 mA
Power Dissipation(Note 3) Internally Limited
Junction Temperature (TJ) Range −40°C to +125°C
Ambient Temperature (TA) Range −40°C to +85°C
Thermal Properties
θJA, Junction-to-Ambient Thermal 54°C/W
Resistance (Note 5)
Electrical Characteristics Unless otherwise noted, VCC (VCHG_IN and/or VUSBpwr) = 5V, VBATT = 3.5V.
CCHG_IN = 1 µF, CUSBpwr = 1 µF, CBATT = 1 µF. Typical values and limits appearing in normal type apply for TJ = 25°C. Limits
appearing in boldface type apply over TJ = 0°C to +85°C. (Notes 2, 6, 7)
Symbol Parameter Conditions Min Typ Max Units
CHARGER
VCHG_IN AC Wall Adapter Input
Voltage Range
4.5 6.0 V
VUSBpwr USB Input Voltage
Range
4.35 6.0 V
ICC_PD Quiescent Current in
Power Down Mode
VBATT > VCC–VOK_CHG 1 5µA
ICC_STBY Quiescent Current in
Standby Mode
VBATT < VCC − VOK_CHG
VCC > VPOR
EN_b = High
400 600 µA
IBATT_PD Battery Leakage
Current in Power Down
Mode
VBATT > VCC + VOK_CHG
0.01 2.0 µA
IBATT_MAINT Battery Leakage
Current in Maintenance
Mode
STAT1 = off, STAT2 = on, adapter or USB
connected, VBATT = 4.2V 7 15 µA
VOK_CHG CHG_IN or USBpwr
OK Trip-Point
VCC – VBATT (Rising)
VCC – VBATT (Falling) 200
50 mV
VPOR VCC POR Trip-Point VCC (Rising)
VBATT < VCC – VOK_CHG
VFULL_RATE < VBATT < VTERM
3.0 V
VTERM Battery Charge
Termination Voltage
ICHG = 10% of its value when VBATT = 3.5V 4.2 V
Battery Charge
Termination Voltage
Tolerance
TA = 25°C −0.35 +0.35
%
TA = 0°C to 85°C −1.5 +1.5
VCHG_DO CHG_IN Drop-Out
Voltage
VBATT = VTERM, ICHG = 1A
VCC > VBATT + VCHG_DO_MAX
500 mV
VUSB_DO USBpwr Drop-Out
Voltage
VBATT = VTERM, USB_sel = high
VCC > VBATT + VUSB_DO_MAX
250 mV
ICHG CHG_IN Full-Rate
Charge Current Range
(see full-rate charge
mode description)
6V VCC 4.5V
VBATT < VCC – VOK_CHG
VFULL_RATE < VBATT < VTERM
ICHG = KISET/RISET
50 1000 mA
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LM3658
Symbol Parameter Conditions Min Typ Max Units
ICHG CHG_IN Full Rate
Charge Current
RISET = 10k220 245 270
mA
RISET = 5 k465 500 535
RISET = 3.3k700 760 820
KISET Charge Current Set
Coefficient
ICHG = KISET/RISET (see
full-rate charge mode
description)
6V VCC 4.5V
VBATT < VCC – VOK_CHG
VFULL_RATE < VBATT < VTERM 2500 A
VISET Charge Current Set
Voltage
6V VCC 4.5V
VBATT < VCC – VOK_CHG
VFULL_RATE < VBATT < VTERM
2.5 V
IUSB_L USB Full-Rate Charge
Low Current
80 90 100 mA
IUSB_H USB Full-Rate Charge
High Current
400 450 500 mA
IPREQUAL Pre-Qualification
Current
VBATT = 2V, for both AC adapter and USB 35 45 55 mA
VFULL_RATE Full-Rate Qualification
Threshold
VBATT rising, transition from pre-qualification to
full-rate charging 2.9 3.0 3.1 V
Full Rate Hysteresis VBATT falling 50 60 70 mV
IEOC End-of-Charge
Current, Percent from
Full-Range Current
6V VCC 4.5V
VBATT < VCC – VOK_CHG
VFULL_RATE < VBATT < VTERM
7911 %
ITOPOFF Minimum Top-Off
Charge Current
6V VCC 4.5V
VBATT < VCC – VOK_CHG
VBATT = VTERM
1.25 2.5 3.75 %
VRESTART Restart Threshold
Voltage
VBATT falling, transition from EOC to pre-
qualification mode 3.94 4.0 4.07 V
VTL Battery Temperature
Sense Comparator
Low-Voltage Threshold
0.46 0.49 0.52 V
VTH Battery Temperature
Sense Comparator
High-Voltage
Threshold
2.44 2.49 2.54 V
ITSENSE Battery Temperature
Sense Current
94 100 106 µA
TREG Regulated Junction
Temperature
120 °C
TSD Thermal Shutdown
Temperature
165 °C
VTLDO LDO mode detection
threshold
TS pin voltage for entry into LDO mode.
For LM3658SD-B only 3.95 4.0 v
VLDO LDO Mode Regulation 6V VCHG_IN 4.5V
TS= Floating
IBATT = 100mA
-3.0 4.2 +3.0 %
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LM3658
Symbol Parameter Conditions Min Typ Max Units
DETECTION AND TIMING
TPOK Power OK Deglitch
Time
VBATT < VCC – VOK_CHG 40 60 100 ms
TPREQUAL Pre-Qualification Timer 27 30 33 mins
TPQ_FULL Deglitch Time for Pre-
Qualification to Full-
Rate Charge Transition
270 300 330 ms
TFULL_PQ Deglitch Time for Full-
Rate to Pre-
Qualification Transition
270 300 330 ms
TCHG Charge Timer LM3658SD, LM3658SD-B and LM3658SD-A
with USB_sel=high 270 300 330 mins
LM3658SD-A with USB_sel=low 540 600 660
TEOC Deglitch Time for End-
of-Charge Transition
270 300 330 ms
TBATTEMP Deglitch Time for
Battery Temperature
Fault
20 40 80 ms
TDGL Deglitch Time for EN_b
and USB_sel Pins
20 40 80 ms
TITOPOFF Deglitch Time for
ITOPOFF
270 300 330 ms
TTOPOFF Top-Off Charging
Timer
LM3658SD, LM3658SD-B and LM3658SD-A
with USB_sel=high 27 30 33 mins
LM3658SD-A with USB_sel=low 54 60 66
I/O
VIL Low-Level Input
Voltage
EN_b 0 0.7 V
USB_sel 1.5
VIH High-Level Input
Voltage
EN_b 1.4 V
USB_sel 2.5
IOL Low-Level Output
Current
STAT1, STAT2, output voltage = 0.25V 10 25 mA
IOH High-Level Output
Current
STAT1, STAT2, output voltage = 6.0V 0.01 1µA
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation
of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions,
see the Electrical Characteristics tables.
Note 2: All voltages are with respect to the potential at the GND pin.
Note 3: The LM3658 has built-in thermal regulation to regulate the die temperature to 120ºC. See Operation Description section for more detail.
Note 4: The Human body model is a 100 pF capacitor discharged through a 1.5 k resistor into each pin. The machine model is a 200 pF capacitor discharged
directly into each pin. MIL-STD-883 3015.7
Note 5: Junction-to-ambient thermal resistance is highly application and board-layout dependent. In applications where high maximum power dissipation exists,
special care must be paid to thermal dissipation issues in board design. Please refer to application note AN1187 for more detail.
Note 6: Min and Max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the most likely norm.
Note 7: LM3658 is not intended as a Li-Ion battery protection device; battery used in this application should have an adequate internal protection.
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LM3658
Block Diagram
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LM3658
Li-Ion Charging Profile
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LM3658
LM3658 Operation Description
POWER-DOWN MODE
The LM3658 will power down automatically when the voltage
on the USBpwr or CHG_IN pin drops below the battery volt-
age with an amount that is equal to VOK_CHG (VBATT > VCC -
VOK_CHG). Power-Down mode shuts off the internal power
FETs as well as the open-drain pull-down transistors on the
status pins STAT1 and STAT2. The only current consumed
by the LM3658 is an ultra-low quiescent current of 1 µA typi-
cal.
POWER-ON RESET
As soon as the voltage of one of the power sources rises
above VBATT + VOK_CHG, the charger will wake up. However,
charging will not be initiated unless the supply voltage source
exceeds the VPOR.
AUTOMATIC POWER SOURCE DETECTION
When the voltage of one of the power sources exceeds the
VPOR threshold, the LM3658 detects which power source is a
valid charge supply. When both supply voltages are valid and
present, CHG_IN will automatically be selected over USBpwr.
The USBpwr will be the designated power source only if no
CHG_IN is present or when the voltage on the CHG_IN pin is
less than the battery voltage.
THERMAL POWER FET REGULATION
The internal power FETs are thermally regulated to the junc-
tion temperature of 120ºC to guarantee optimal charging of
the battery. At all times is the charge current limited by the
ISET resistor setting, the USB 100 mA/500 mA selection, or
the 100ºC junction temperature of the LM3658. The charge
current is therefore a function of the charge current settings,
the thermal conductivity of the package and the ambient tem-
perature as described in the following equation:
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Where TA is the ambient temperature and θJA is the thermal
resistance of the package. Thermal regulation guarantees
maximum charge current and superior charge rate without
exceeding the power dissipation limits of the LM3658.
PRE-QUALIFICATION MODE
During pre-qualification, STAT1 is on and STAT2 is off, and
the charger supplies a constant current of 50 mA to the bat-
tery. When the battery voltage reaches VFULL_RATE, the charg-
er transitions from pre-qualification to full-rate charging. The
pre-qualification mode aborts when the battery doesn’t reach
VFULL_RATE within the time allowed in TPREQUAL timer. In this
event, charging stops and STAT1 and STAT2 will both be on,
indicating a bad battery condition.
CHG_IN FULL-RATE CHARGING MODE
The full-rate charge cycle is initiated following the successful
completion of the pre-qualification mode. Timer TCHG starts to
count when the charger enters full-rate charging, with STAT1
on and STAT2 off. When charging with an AC wall adapter,
the full-rate charge current is proportional to the value of the
resistor that is connected to the ISET pin as described in the
following equation:
It is recommended to charge Li-Ion batteries at 1C rate, where
“C” is the capacity of the battery. As an example, it is recom-
mended to charge a 750 mAh battery at 750 mA, or 1C.
Charging at a higher rate can cause damage to the battery.
USBpwr FULL-RATE CHARGING MODE
The full-rate charge cycle is initiated following the successful
completion of the pre-qualification mode. Timer TCHG starts to
count when the charger enters full-rate charging, with STAT1
on and STAT2 off. If the USB bus provides the charger supply,
then the default full-rate charge current is 100 mA max unless
the USB_sel pin is pulled high, which sets the charge current
to 500 mA max.
CONSTANT-VOLTAGE CHARGING MODE AND END-OF-
CHARGE (EOC) DETECTION
The battery voltage increases rapidly as a result of full-rate
charging and will reach the 4.2V termination voltage, trigger-
ing the constant-voltage charge cycle. Timer TCHG continues
to count in this cycle. STAT1 is on and STAT2 is off. The
charge current gradually decreases during constant-voltage
charging until it reaches the End-Of-Charge (EOC), which is
equal to 10% of the full-rate current set either by the resistor
connected to the ISET pin or the USB_sel pin. If Timer TCHG
times out before EOC is reached, charging stops and STAT1
and STAT2 will both be on, indicating a bad battery condition.
TOP-OFF CHARGING MODE
Once EOC has been reached, a top-off cycle continues to
charge the battery. Timed top-off cycle provides optimal bat-
tery capacity following a complete charge cycle. During this
cycle, charging terminates when ICHG reaches 2.5% of the full-
rate charge current or when TTOPOFF times out, whichever
occurs first. STAT1 will turn off and STAT2 will turn on once
the top-off cycle completes successfully, indicating that
charging is done.
MAINTENANCE MODE
Maintenance mode begins immediately after the charger suc-
cessfully finishes the top-off cycle. In the maintenance mode,
the battery voltage is being monitored by the LM3658 contin-
uously. If the battery voltage drops 200 mV below VTERM, a
new full-rate charge cycle starts to replenish the battery. As
this new full-rate charge cycle begins, STAT1 will turn on and
STAT2 will turn off, and all the timers will reset. Refer to the
LM3658 Flowchart.
CHARGE STATUS OUTPUTS
The LM3658 provides two open-drain outputs STAT1 and
STAT2 that can be connected to external LEDs or to General
Purpose I/O’s (GPIO) of a peripheral IC. All charge status of
the LM3658 is illustrated in Table 1. “ON” means that STATx
pin is pulled low as its pull-down transistor is turned on, rep-
resenting a logic 0.
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LM3658
TABLE 1. Status Pins Summary
STAT1 STAT2 Condition
OFF OFF Power-Down, charging is suspended
or interrupted
ON OFF Pre-qualification mode, CC and CV
charging, Top-off mode
OFF ON Charge is completed
ON ON Bad battery (Safety timer expired), or
LDO mode
SAFETY TIMERS
In order to prevent endless charging of the battery, which can
cause damage to the battery, there are three safety timers
that forcefully terminate charging if the charging mode is not
completed within the time allowed.
Pre-Qualification Timer (TPREQUAL)
The pre-qualification timer starts with the initiation of the pre-
qualification mode and allows 30 minutes to transition from
pre-qualification to full rate charging. If the battery voltage
does not reach VFULL_RATE in 30 minutes, charging stops and
status pins STAT1 and STAT2 both turn on to indicate a bad
battery status.
Charger Timer (TCHG)
The charge timer starts with the initiation of full-rate charging
and has a duration of 5 hours for the LM3658. If the charge
current does not reach EOC, charging stops and STAT1 and
STAT2 both turn on to indicate a bad battery status. Once the
charge control declares a bad battery, removing the input
source is the only means to clear the bad battery status.
Top-Off Timer (TTOPOFF)
Once the charger successfully completes constant current
constant voltage charging, it enters top-off mode and starts
TTOPOFF timer. Topoff lasts 30 minutes for the LM3658. During
top-off, charging stops when TTOPOFF reaches its count or
when ICHG reaches 2.5% of the full-rate charge current. There
is no time-out condition in top-off mode.
When charging is interrupted either by battery temperature
out of range or disabling the LM3658, the applicable safety
timer will store its count value for the duration of the interrup-
tion and subsequently resumes counting from its stored count
value when charging continues, only if the charger resumes
to the same operation mode it was in before the interrupt.
The LM3658SD-A version has selectable timers for TCHG and
TTOPOFF. Based on the logic level applied to the USB_sel pin,
timers can be chosen as follow:
Input USB_SEL TPREQUAL TCHG TTOPOFF
CHG_IN Low 30 minutes 10 hours 60 minutes
CHG_IN High 30 minutes 5 hours 30 minutes
USBpwr Low 30 minutes 10 hours 60 minutes
USBpwr High 30 minutes 5 hours 30 minutes
BATTERY TEMPERATURE MONITORING (SUSPEND
MODE)
The LM3658 is equipped with a battery thermistor interface to
continuously monitor the battery temperature by measuring
the voltage between the TS pin and ground. Charging is al-
lowed only if the battery temperature is within the acceptable
temperature range set by a pair of internal comparators inside
the LM3658. If the battery temperature is out of range, STAT1
and STAT2 both turn off and charging is suspended. Timer
holds its count value.
The TS pin is only active during charging and draws no current
from the battery when no external power source is present.
If the TS pin is not used in the application, it should be con-
nected to GND through 10k pulldown resistor.
When the TS pin is left floating (battery removal), then the
charger will be disabled as the TS voltage exceeds the upper
temperature limit.
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The LM3658 battery temperature feature is tailored to use
negative temperature coefficient (NTC) 103AT thermistors
with 10k impedance. If alternative thermistors need to be
used in the system, supplemental external resistors are need-
ed to create a circuit with equivalent impedance.
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DISABLING CHARGER (CHARGE INTERRUPT MODE)
Charging can be safely interrupted by pulling the EN_b pin
high and charging can resume upon pulling the EN_b pin low.
The enable pin can be permanently tied to GND with no extra
current consumption penalty during power down mode. When
the charger is disabled, timer holds its count value, and
STAT1 and STAT2 are both off.
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LM3658
LDO MODE (AVAILABLE ONLY IN LM3658SD-B
VERSION)
The LM3658SD-B version enters LDO mode when the Ts pin
is floating and AC wall adapter is still connected to CHG_IN
pin. In LDO mode, STAT1 and STAT2 are both on. The
LM3658SD-B becomes a linear regulator capable of deliver-
ing 1A of source current. Normally the Ts pin is connected to
the thermistor from the battery pack for temperature monitor-
ing purpose. If this pin is disconnected, the LM3658SD-B
assumes that there is no battery present and will automati-
cally invoke the LDO mode. LDO mode allows applications to
operate without a battery provided that the AC wall adapter
supplies power to the CHG_IN pin. The LDO mode is not
possible in USB mode.
For the other versions of the LM3658, floating the Ts pin does
not invoke LDO mode. Instead, it will go to suspend mode.
Please refer to “ Battery Temperature Monitoring” section for
more detail.
5 HOUR/ 10 HOUR SELECTABLE TIMER (AVAILABLE
ONLY IN LM3658SD-A VERSION)
The LM3658SD-A allows the user to select between 5 hour
or 10 hour timer based on the polarity of the USB_sel pin, in
both CHG_IN mode and USBpwr mode. By pulling the
USB_sel pin high, the timer is set to 5 hours. In the USBpwr
mode, the polarity of the USB_sel pin determines the charge
current as well as the timer. In CHG_IN mode, the polarity of
the USB_sel pin determines only the timer. The charge cur-
rent is set by the resistor at Iset pin.
INPUT/OUTPUT BYPASS CAPACITORS
Care should be taken to support the stability of the charge
system by connecting a 1 µF capacitor as close as possible
to the BATT pin. An input capacitor ranging from 1.0 µF–
10.0 µF must be connected to the CHG_IN and USBpwr input
pins. Low cost ceramic capacitors can be selected.
THERMAL PERFORMANCE OF THE LLP PACKAGE
The LM3658 is a monolithic device with integrated power
FETs. For that reason, it is important to pay special attention
to the thermal impedance of the LLP package and to the PCB
layout rules in order to maximize power dissipation of the LLP
package.
The LLP package is designed for enhanced thermal perfor-
mance and features an exposed die attach pad at the bottom
center of the package that creates a direct path to the PCB
for maximum power dissipation. Compared to the traditional
leaded packages where the die attach pad is embedded in-
side the molding compound, the LLP reduces one layer in the
thermal path.
The thermal advantage of the LLP package is fully realized
only when the exposed die attach pad is soldered down to a
thermal land on the PCB board with thermal vias planted un-
derneath the thermal land. Based on thermal analysis of the
LLP package, the junction-to-ambient thermal resistance
(θJA) can be improved by a factor of two when the die attach
pad of the LLP package is soldered directly onto the PCB with
thermal land and thermal vias, as opposed to an alternative
with no direct soldering to a thermal land. Typical pitch and
outer diameter for thermal vias are 1.27 mm and 0.33 mm
respectively. Typical copper via barrel plating is 1 oz, although
thicker copper may be used to further improve thermal per-
formance. The LM3658 die attach pad is connected to the
substrate of the IC and therefore, the thermal land and vias
on the PCB board need to be connected to ground (GND pin).
For more information on board layout techniques, refer to Ap-
plication Note 1187 “Leadless Lead Frame Package (LLP).”
This application note also discusses package handling, sol-
der stencil and the assembly process.
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LM3658
LM3658 FLOWCHARTS
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LM3658 Flowchart
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LM3658
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LM3658 USBpwr Mode Flowchart
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LM3658 CHG_IN Mode Flowchart
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LM3658
Physical Dimensions inches (millimeters) unless otherwise noted
LLP10 Package Drawing
NS Package Number SDA10A
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LM3658
Notes
LM3658 Dual Source USB/AC Li Chemistry Charger IC for Portable Applications
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