參數資料
型號: ADP3502
廠商: Analog Devices, Inc.
元件分類: 基準電壓源/電流源
英文描述: CDMA Power Management System
中文描述: CDMA的電源管理系統(tǒng)
文件頁數: 18/36頁
文件大?。?/td> 714K
代理商: ADP3502
REV. 0
–18–
ADP3502
BATTERY CHARGER START
V
ADAPTER
> VBAT
SET CHARGER DETECT FLAG
VBAT > DDLO
LDO3b: ON
SET LOW CURRENT CHARGE
I
ADAPTER
= 275mA
(55mV ON R
)
PRECHARGE: OFF
LDO1, LDO1b, LDO2, LDO2b,
LDO3, LDO6, LDO6b
VOLTAGE DETECTOR
ALL ENABLED
VOLTAGE DETECTOR
VLDO6 > 2.67V
AND
VLDO1 > 2.77V
N
Y
DETERMINED BY EXTERNAL
SENSE RESISTOR.
A
N
Y
PRECHARGE 5mA
N
Y
Figure 4. Charger Flow Chart A
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