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Maxim Integrated Products - Linear Li Battery Charger

Numéro de référence MAX1507
Description Linear Li Battery Charger
Fabricant Maxim Integrated Products 
Logo Maxim Integrated Products 





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MAX1507 fiche technique
www.DataSheet.co.kr
19-2899; Rev 1; 11/03
EVAALVUAAILTAIOBNLEKIT
Linear Li+ Battery Charger with Integrated Pass FET
and Thermal Regulation in 3mm x 3mm Thin DFN
General Description
The MAX1507 is an intelligent, stand-alone constant-cur-
rent, constant-voltage (CCCV), thermally regulated linear
charger for a single-cell lithium-ion (Li+) battery. The
MAX1507 integrates the current-sense circuit, MOS pass
element, and thermal-regulation circuitry, and also elimi-
nates the reverse-blocking Schottky diode to create the
simplest and smallest charging solution for hand-held
equipment.
The MAX1507 functions as a stand-alone charger to
control the charging sequence from the prequalification
state through fast-charge, top-off charge, and full-
charge indication.
Proprietary thermal-regulation circuitry limits the die
temperature when fast charging or while exposed to
high ambient temperatures, allowing maximum charg-
ing current without damaging the IC.
The MAX1507 achieves high flexibility by providing an
adjustable fast-charge current and thermal regulation
setpoints. Other features include the charging status
(CHG) of the battery and an active-low control input (EN).
The MAX1507 accepts a +4.25V to +13V supply, but dis-
ables charging when the input voltage exceeds +7V to
protect against unqualified or faulty AC adapters. The
MAX1507 operates over the extended temperature
range (-40°C to +85°C) and is available in a compact
8-pin thermally enhanced 3mm x 3mm Thin DFN pack-
age with 0.8mm height.
Applications
Cellular and Cordless Phones
PDAs
Digital Cameras and MP3 Players
USB Appliances
Charging Cradles and Docks
Bluetooth™ Equipment
Pin Configuration
TOP VIEW
8 7 65
Features
Stand-Alone Linear 1-Cell Li+ Battery Charger
No External FET, Reverse-Blocking Diode, or
Current-Sense Resistor Required
Programmable Fast-Charge Current (0.8A max)
Proprietary Programmable Die-Temperature
Regulation Control (+90°C, +100°C, and +130°C)
+4.25V to +13V Input Voltage Range with Input
Overvoltage Protection (OVP) Above +7V
Charge-Current Monitor for Fuel Gauging
Low Dropout Voltage—130mV at 0.425A
Input Power-Source Detection Output (VL) and
Charge-Enable Input (EN)
Soft-Start Limits Inrush Current
Charge Status Output (CHG) for LED or
Microprocessor Interface
Small 3mm x 3mm 8-Pin Thin DFN Package,
0.8mm High
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX1507ETA -40°C to +85°C 8 Thin DFN-EP*
*EP = Exposed paddle.
TOP
MARK
AGW
Typical Operating Circuit
INPUT
4.25V TO 13V
1µF
IN BATT
MAX1507
1µF
Li+
4.2V
MAX1507
1 2 34
3mm x 3mm THIN DFN
Bluetooth is a trademark of Ericsson.
OFF
ON
0.47µF
CHG
EN
VL
ISET
TEMP
GND
2.80k
________________________________________________________________ Maxim Integrated Products 1
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.
Datasheet pdf - http://www.DataSheet4U.net/

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