參數(shù)資料
型號: MAX1879EUA
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Simple, Efficient, 1-Cell Li+ Pulse Charger
中文描述: BATTERY CHARGE CONTROLLER, PDSO8
封裝: MICRO MAX PACKAGE-8
文件頁數(shù): 7/11頁
文件大小: 198K
代理商: MAX1879EUA
M
Simple, Efficient, 1-Cell Li+ Pulse Charger
_______________________________________________________________________________________________________
7
SHUTDOWN
PMOS FET: OFF
LED: OFF
(FROM ANY STATE)
CHARGING POWER REMOVED
CHARGING POWER
APPLIED
DONE
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)
V
BATT
< 2.5V
2.5V < V
BATT
< 4.2V
TEMPERATURE
NOT OK
OR V
BATT
< 2.5V
V
BATT
> 4.0V
V
BATT
< 2.5V
V
BATT
4.2V
V
BATT
> 2.2V
POWER-ON RESET
8.0mA PRECHARGE: ON
PMOS FET: OFF
LED: OFF
CHARGE
PMOS FET: PULSED
LED: ON
TEMPERATURE OK
EVERY 9s
TOP-OFF
PMOS FET: PULSED
LED: OFF
PREQUALIFICATION
8.0mA PRECHARGE: ON
PMOS FET: OFF
LED: 50% DUTY CYCLE, 2Hz
CHARGE QUALIFICATION
PMOS FET: OFF
LED: ON
TEMPERATURE
NOT OK
(LED: 50% DUTY CYCLE, 2Hz)
TEMPERATURE OK
EVERY 9S
TOP-OFF QUALIFICATION
PMOS FET: OFF
LED: OFF
TEMPERATURE
NOT OK
(LED: OFF)
V
BATT
< 2.5V
BATT REGULATION VOLTAGE
(e.g., 4.2V) HAS BEEN REACHED
AND
FET ON-TIME
FET OFF-TIME
<
1
8
TOTAL TIME = 6.25hr
Simplified State Diagram
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