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参数资料
| 型号： | MAX1551EZK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR LI+ 1CELL SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 3.7 V ~ 7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-5 细型，TSOT-23-5 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 标准包装 |
| 其它名称： | MAX1551EZK+TDKR |
MAX1551/MAX1555
SOT23 Dual-Input USB/AC Adapter 1-Cell Li+
Battery Chargers
ELECTRICAL CHARACTERISTICS
(V DC = 5V, V USB = 0, I BAT = 0, C BAT = 1μF, T A = -40 ° C to +85 ° C , unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
MAX
UNITS
DC
DC Voltage Range
DC to BAT Voltage Range
DC Undervoltage Lockout
Threshold
DC Supply Current
DC to BAT On-Resistance
DC to BAT Dropout Voltage
(Note 1)
Input rising, 430mV hysteresis, V BAT = 3V (Note 1)
V DC = 3.7V, V BAT = 3.6V
When charging stops, V BAT = 4V, DC falling, 200mV
hysteresis
3.7
0.1
3.75
30
7.0
6.0
4.15
3
2
95
V
V
V
mA
?
mV
USB
USB Voltage Range
USB Undervoltage Lockout
Threshold
USB Supply Current
USB to BAT On-Resistance
USB to BAT Dropout Voltage
(Note 1)
Input rising, 430mV hysteresis, V DC = 0, V BAT = 3V
(Note 1)
V USB = 5V, V DC = 0
V USB = 3.7V, V BAT = 3.6V, V DC = 0
When charging stops, V BAT = 4V, USB falling, 200mV
hysteresis, V DC = 0
3.7
3.75
30
6.0
4.15
3
4
95
V
V
mA
?
mV
BAT
BAT Regulation Voltage
DC Charging Current
USB Charging Current
BAT Prequal Threshold
Prequalification Charging Current
BAT Leakage Current
V DC or V USB = 5V
V BAT = 3.3V, V USB = 0, V DC = 5V
V BAT = 3.3V, V DC = 0, V USB = 5V
V BAT rising, 100mV hysteresis
V BAT = 2.8V
V DC = V USB = 0, V BAT = 4.2V
4.141
220
80
2.9
20
4.259
340
100
3.1
80
5
V
mA
mA
V
mA
μA
POK , CHG
CHG Threshold
CHG , POK Logic-Low Output
CHG , POK Leakage Current
Charge current where CHG goes high,
I BAT falling, 50mA hysteresis
I CHG , I POK = 10mA
V CHG , V POK = 6V, T A = +25 ° C
25
100
300
1
mA
mV
μA
Note 1: The input undervoltage lockout has 430mV of hysteresis. The charger turns on when an input rises to 3.95V (typ), and turns
off when it falls below 3.52V.
Note 2: Specifications to -40 ° C are guaranteed by design, not production tested.
Maxim Integrated
3
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