MAX1507ETA+T Maxim Integrated Products, MAX1507ETA+T Datasheet

IC BATT CHARGER LI-ION 8-TDFN

MAX1507ETA+T

Manufacturer Part Number
MAX1507ETA+T
Description
IC BATT CHARGER LI-ION 8-TDFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX1507ETA+T

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
4.25 V ~ 13 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-WDFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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.
19-2899; Rev 2; 8/05
Bluetooth is a trademark of Ericsson.
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.
Linear Li+ Battery Charger with Integrated Pass FET
TOP VIEW
Cellular and Cordless Phones
PDAs
Digital Cameras and MP3 Players
USB Appliances
Charging Cradles and Docks
Bluetooth™ Equipment
and Thermal Regulation in 3mm x 3mm Thin DFN
________________________________________________________________ Maxim Integrated Products
3mm x 3mm THIN DFN
+
8
1
General Description
MAX1507
7
2
Pin Configuration
6
3
5
4
Applications
♦ Stand-Alone Linear 1-Cell Li+ Battery Charger
♦ No External FET, Reverse-Blocking Diode, or
♦ Programmable Fast-Charge Current (0.8A max)
♦ Proprietary Programmable Die-Temperature
♦ +4.25V to +13V Input Voltage Range with Input
♦ Charge-Current Monitor for Fuel Gauging
♦ Low Dropout Voltage—130mV at 0.425A
♦ Input Power-Source Detection Output (VL) and
♦ Soft-Start Limits Inrush Current
♦ Charge Status Output (CHG) for LED or
♦ Small 3mm x 3mm 8-Pin Thin DFN Package,
+ Denotes lead-free package.
*EP = Exposed paddle.
MAX1507ETA-T -40°C to +85°C 8 Thin DFN-EP*
MAX1507ETA+T -40°C to +85°C 8 Thin DFN-EP*
Current-Sense Resistor Required
Regulation Control (+90°C, +100°C, and +130°C)
Overvoltage Protection (OVP) Above +7V
Charge-Enable Input (EN)
Microprocessor Interface
0.8mm High
INPUT
4.25V TO 13V
PART
ON
0.47μF
OFF
1μF
Typical Operating Circuit
TEMP RANGE PIN-PACKAGE
EN
VL
IN
CHG
Ordering Information
MAX1507
TEMP
BATT
ISET
GND
1μF
Features
MARK
2.80kΩ
AGW
AGW
TOP
Li+
4.2V
1

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MAX1507ETA+T Summary of contents

Page 1

... Charge Status Output (CHG) for LED or Microprocessor Interface ♦ Small 3mm x 3mm 8-Pin Thin DFN Package, 0.8mm High PART Applications MAX1507ETA-T -40°C to +85°C 8 Thin DFN-EP* MAX1507ETA+T -40°C to +85°C 8 Thin DFN-EP* + Denotes lead-free package. *EP = Exposed paddle. INPUT 4.25V TO 13V ON Features ...

Page 2

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN ABSOLUTE MAXIMUM RATINGS IN, CHG to GND .....................................................-0.3V to +14V VL, BATT, ISET, EN, TEMP to GND ..........................-0. IN...................................................................-14V ...

Page 3

Linear Li+Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN ELECTRICAL CHARACTERISTICS (continued) = 4.0V, TEMP = EN = CHG = unconnected 5V BATT T = -40°C to +85°C, ...

Page 4

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN = 4.0V, TEMP = EN = CHG = unconnected 5V BATT +25°C, unless otherwise noted.) SUPPLY CURRENT vs. ...

Page 5

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN = 4.0V, TEMP = EN = CHG = unconnected 5V BATT +25°C, unless otherwise noted.) CHARGE CURRENT vs. ...

Page 6

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN Detailed Description The MAX1507 charger uses voltage, current, and ther- mal-control loops to charge a single Li+ cell and to pro- tect the ...

Page 7

Linear Li+Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN V BATT PRECHARGE 10% CHARGE CURRENT V < 2.4V BATT FAST CHARGE 100% CHARGER CURRENT I > 20% CHARGE OF ISET Figure 2. Charge ...

Page 8

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN CHG Charge Indicator Output CHG is an open-drain current source for indicating charge status. Table 1 describes the state of CHG dur- ing ...

Page 9

Linear Li+Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN Application Circuits Stand-Alone Li+ Charger The MAX1507 provides a complete Li+ charging solu- tion. The Typical Application Circuit on the front page shows the ...

Page 10

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN VBUS 1μF GND USB PORT 15.4kΩ Figure 4. USB Battery Charger Layout and Bypassing Connect a 1µF ceramic input capacitor as ...

Page 11

Linear Li+Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) D ...

Page 12

... 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Package Information (continued) ...

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