MB3829 Datasheet, PDF (3/24 Pages) Fujitsu Component Limited. – System Power Supply IC for Mobile Telephone

MB3829
PIN DESCRIPTION
Pin No.
Pin Symbol
I/O
Description
Power supply
control section
1
2
3
4
5
6
7
OUT1
NC
OUT4
SS
VCC1
OUT2
CTL2
O
REG1 output pin (3.0 V)
-
Unconnected pin (open)
O
REG4 output pin (3.0 V)
-
VREF slow - start capacitance connection pin
-
Power supply pin for power supply control section
O
REG2 output pin (3.0 V)
I
REG2 control pin
In REG1 operating
H level: REG2 operation; L level: REG2 OFF
8
OUT3
O
REG3 output pin (3.0 V)
9
CTL3
10
BATT1
I
REG3 control pin
In REG1 operating
H level: REG3 operation; L level: REG3 OFF
-
Backup battery connection pin
11
GND2
-
Ground pin
12
GND1
-
Ground pin
13
CLR
I
Reset pin for momentary power - loss detection and power -
restoration section
14
CT2
-
Pin for connecting momentary power - loss evaluation time
setup capacitor
15
CT3
-
Pin for connecting momentary power - loss evaluation time
setup capacitor and resistor
16
TOUT
O
Pin for momentary power - loss detection and output (open drain)
17
VREF
O
Pin for reference voltage output
18
VCC3
19
VCC5
-
Power supply pin for momentary power - loss detection and
power - restoration section
-
Power supply pin for sounder section
20
Sounder section
21
VO3
VO2
O
Output 3 pin (open collector)
O
Output 2 pin (open collector)
22
VO1
O
Output 1 pin (open collector)
23
GND5
-
Ground pin
24
GND6
-
Ground pin
25
IN3
I
Control input 3 pin (H level: VO3 operation)
(Continue)
3