参数资料
型号: MAX1879EUA+T
厂商: Maxim Integrated Products
文件页数: 7/11页
文件大小: 0K
描述: IC CHARGER LI+ PULSE 8UMAX
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: 4.4 V ~ 22 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-uMAX
包装: 带卷 (TR)
Simple, Efficient, 1-Cell Li+ Pulse Charger
Simplified State Diagram
CHARGING POWER REMOVED
(FROM ANY STATE)
SHUTDOWN
PMOS FET: OFF
LED: OFF
V BATT > 2.2V
CHARGING POWER
APPLIED
POWER-ON RESET
8.0mA PRECHARGE: ON
PMOS FET: OFF
LED: OFF
V BATT < 4.0V OR PULL THERM HIGH
BATT NOT INSTALLED OR V BATT < 2.2V
(ASYNCHRONOUSLY, FROM ANY STATE)
PREQUALIFICATION
8.0mA PRECHARGE: ON
PMOS FET: OFF
LED: 50% DUTY CYCLE, 2Hz
TEMPERATURE NOT OK
OR V BATT < 2.5V
V BATT 4.2V
2.5V < V BATT < 4.2V
V BATT < 2.5V
CHARGE
PMOS FET: PULSED
V BATT > 4.0V
DONE
PMOS FET: OFF
LED: OFF
LED: ON
EVERY 9s
BATT REGULATION VOLTAGE
V BATT < 2.5V
CHARGE QUALIFICATION
PMOS FET: OFF
TEMPERATURE OK
(e.g., 4.2V) HAS BEEN REACHED
AND FET ON-TIME < 1
FET OFF-TIME 8
LED: ON
TOP-OFF
PMOS FET: PULSED
TOTAL TIME = 6.25hr
TEMPERATURE NOT OK
LED: OFF
(LED: 50% DUTY CYCLE, 2Hz)
EVERY 9S
TEMPERATURE OK
V BATT < 2.5V
TOP-OFF QUALIFICATION
PMOS FET: OFF
LED: OFF
TEMPERATURE NOT OK
(LED: OFF)
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