参数资料
型号: MAX8971EWP+T
厂商: Maxim Integrated Products
文件页数: 7/39页
文件大小: 0K
描述: IC DCDC CHRGR LI+ 1CELL 20WLP
标准包装: 2,500
功能: 充电管理,过压/欠压保护
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4 V ~ 7.5 V
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
MAX8971
Industry's Smallest 1.55A
1-Cell Li+ DC-DC Charger
ELECTRICAL CHARACTERISTICS (continued)
(V DC = 5V, C BYP = 1 F F, I FCHG = 500mA, C AVL = 4.7 F F, V THM = AVL/2, T A = -40 N C to +85 N C, unless otherwise noted. Typical values
are at T A = +25 N C.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
THERMISTOR MONITOR
THM Threshold, Cold, No Charge
(0 ° C)
THM Threshold, Cold, Current
Foldback (+15 ° C)
THM Threshold, Hot, Voltage
Foldback (+45 ° C)
THM Threshold, Hot, No Charge
(+60 N C)
V THM/AVL rising, 1% hysterisis
(thermistor temperature falling)
V THM/AVL rising, 1% hysterisis
(thermistor temperature falling)
V THM/AVL falling, 1% hysterisis
(thermistor temperature risin g )
V THM/AVL falling, 1% hysterisis
(thermistor temperature risin g )
71.06
57.00
32.68
21.24
74.56
60.00
34.68
22.54
78.06
63.00
36.68
23.84
%
%
%
%
THM Input Bias Current
V THM = V AVL or 0V
T A = +25 N C
T A = +85 N C
-0.2
0.01
0.01
+0.2
F A
V ICHG
I BAT = 100mA
150
mV
V ICHG Output Voltage
I BAT = 1000mA
1260
1400
1540
mV
IRQB OUTPUT
I BAT = 1500mA
2100
mV
Low-Level Output Saturation
Voltage
I IRQB =10mA, sinking current
0.4
V
High-Level Leakage Current
V IRQB = 5V
T A = +25 N C
T A = +85 N C
-1
0.01
0.1
+1
F A
F A
SAFEOUT OUTPUT
Regulated Output
Dropout Voltage
I SFO = 30mA, V DC = 5.5V
I SFO = 30mA
4.75
5
45
5.25
V
mV
Current Limit
Maximum Output Current
POK Output Threshold
PVL/AVL OUTPUT
100
590
2.7
mA
mA
V
PVL Output Voltage
AVL Output Voltage
5.5V < V DC < 7.5V, no load
5.5V < V DC < 7.5V, no load
5.05
5.05
V
V
LOGIC LEVELS AND TIMING CHARACTERISTICS (SCL, SDA)
Output Low Threshold
Input Low Threshold
Input High Threshold
Maxim Integrated
I o = 3mA, sink current (SDA)
V I2CIN = 1.8V
V I2CIN = 1.8V
1.4
0.4
0.4
V
V
V
7
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