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参数资料
| 型号： | MAX1507ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI-ION 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.25 V ~ 13 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Linear Li+ Battery Charger with Integrated Pass FET
and Thermal Regulation in 3mm x 3mm Thin DFN
Typical Operating Characteristics (continued)
(V IN = 5V, V BATT = 4.0V, TEMP = EN = CHG = unconnected, R ISET = 2.8k Ω to GND, C IN = 1μF, C BATT = 1μF, C VL = 0.47μF, T A =
+25 ° C, unless otherwise noted.)
CHARGE CURRENT
vs. AMBIENT TEMPERATURE (TEMP = OPEN)
1000
CHARGE CURRENT
vs. AMBIENT TEMPERATURE (TEMP = GND)
1000
900
800
700
600
500
400
300
200
100
0
R ISET = 1.87k Ω
V BATT = 3.6V
V BATT = 4.0V
900
800
700
600
500
400
300
200
100
0
R ISET = 1.87k Ω
V BATT = 3.6V
V BATT = 4.0V
-40
-15
10
35
60
85
-40
-15
10
35
60
85
AMBIENT TEMPERATURE ( ° C)
AMBIENT TEMPERATURE ( ° C)
Pin Description
PIN
1
2
3
4
5
6
7
8
—
NAME
VL
IN
GND
ISET
EN
TEMP
BATT
CHG
PAD
FUNCTION
Internally Generated Logic Supply for Chip. Bypass VL to GND with a 0.47μF capacitor.
Input Supply Voltage. Bypass IN to GND with a 1μF capacitor to improve line noise and transient rejection.
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
battery charging current. The charging current is set by connecting a resistor from ISET to GND. Fast-charge
current = 1461V / R ISET Ω .
Logic-Level Enable Input. Drive EN high to disable charger. Pull EN low or float for normal operation. EN has
an internal 200k Ω pulldown resistor.
Three-Level Input Pin. Connect TEMP to VL, GND, or leave floating. Sets maximum die temperature for
thermal regulation loop. Connection to GND = +90 ° C, floating = +100 ° C, VL = +130 ° C. TEMP is Hi-Z during
shutdown.
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.
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.
Exposed Pad. Connect exposed pad to a large copper trace for maximum power dissipation. The pad is
internally connected to GND.
_______________________________________________________________________________________
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