參數(shù)資料
型號: ADP3502
廠商: Analog Devices, Inc.
元件分類: 基準(zhǔn)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(shù): 11/36頁
文件大?。?/td> 714K
代理商: ADP3502
REV. 0
ADP3502
–11–
PIN FUNCTION DESCRIPTION (continued)
Pin
No.
Mnemonic
I/O
Supply
Function
54
BVS
Battery voltage sense input for charger. Connect to battery with a separate low current
trace
Noise reduction capacitor, 0.1
μ
F MLCC
Analog Ground
Battery voltage divider output. Buffered internally. Connect to baseband ADC.
Base drive output for PNP pass transistor
AC Adapter Input
Supply bias current to charging related blocks
Charge current sense input
Power ON/OFF key input. Pulled up internally with 140 k
.
Optional power ON input. ADP3502 will keep power on when this pin goes low.
Optional power ON input. ADP3502 will keep power on when this pin goes low.
While the part is powered up, the input is pulled low (GND) internally. Do not con-
nect to any supply or signal source.
55
56
57
58
59
60
61
62
63
64
NRCAP
AGND
MVBAT
BASE
ADAPTER
ADPSUPPLY
ISENSE
PWRONKEY–
OPT1–
OPT2–
O
VBAT
O
O
VBAT
ADAPTER
I
I
I
I
I/O
ADAPTER
ADAPTER
VBAT
VBAT
VBAT
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