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PDF MAX1507 Data sheet ( Hoja de datos )
| Número de pieza | MAX1507 | |
| Descripción | Linear Li Battery Charger | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX1507 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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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
2.80kΩ
________________________________________________________________ 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/
1 page  
www.DataSheet.co.kr
Linear Li+ Battery Charger with Integrated Pass FET
and Thermal Regulation in 3mm x 3mm Thin DFN
Typical Operating Characteristics (continued)
(VIN = 5V, VBATT = 4.0V, TEMP = EN = CHG = unconnected, RISET = 2.8kΩ to GND, CIN = 1µF, CBATT = 1µF, CVL = 0.47µF, TA =
+25°C, unless otherwise noted.)
CHARGE CURRENT
vs. AMBIENT TEMPERATURE (TEMP = OPEN)
1000
900 VBATT = 4.0V
800
700
600
500
VBATT = 3.6V
400
300
200
100 RISET = 1.87kΩ
0
-40 -15 10 35 60
AMBIENT TEMPERATURE (°C)
85
CHARGE CURRENT
vs. AMBIENT TEMPERATURE (TEMP = GND)
1000
900 VBATT = 4.0V
800
700
600
500
VBATT = 3.6V
400
300
200
100 RISET = 1.87kΩ
0
-40
-15 10 35 60
AMBIENT TEMPERATURE (°C)
85
Pin Description
PIN NAME
FUNCTION
1 VL Internally Generated Logic Supply for Chip. Bypass VL to GND with a 0.47µF capacitor.
2 IN Input Supply Voltage. Bypass IN to GND with a 1µF capacitor to improve line noise and transient rejection.
3 GND Ground. Connect GND and exposed pad to a large copper trace for maximum power dissipation.
Charge-Current Program and Fast-Charge Current Monitor. Output current from ISET is 0.958mA per amp of
4 ISET battery charging current. The charging current is set by connecting a resistor from ISET to GND. Fast-charge
current = 1461V / RISETΩ.
5
EN Logic-Level Enable Input. Drive EN high to disable charger. Pull EN low or float for normal operation. EN has
an internal 200kΩ pulldown resistor.
Three-Level Input Pin. Connect TEMP to VL, GND, or leave floating. Sets maximum die temperature for
6 TEMP thermal regulation loop. Connection to GND = +90°C, floating = +100°C, VL = +130°C. TEMP is Hi-Z during
shutdown.
7 BATT Li+ Battery Connection. Bypass BATT to GND with a capacitor of at least 1µF per ampere of charge current.
Charging Indicator, Open-Drain Output. CHG goes low (and can turn on an LED) when charging begins.
8 CHG CHG is high impedance when the battery current drops below 10% of the fast-charging current, or when EN
is high. Connect a pullup resistor to the µP’s I/O voltage when interfacing with a µP logic input.
—
PAD
Exposed Pad. Connect exposed pad to a large copper trace for maximum power dissipation. The pad is
internally connected to GND.
_______________________________________________________________________________________ 5
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
Linear Li+Battery Charger with Integrated Pass FET
and Thermal Regulation in 3mm x 3mm Thin DFN
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.)
PIN 1
INDEX
AREA
D
N
E E2
DETAIL A
CL
L
A
e
CL
L
e
NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY
PACKAGE OUTLINE, 6, 8, 10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
21-0137
F
1
2
______________________________________________________________________________________ 11
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX1507.PDF ] | |
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