LP3910SQ-AN Datasheet, PDF (5/60 Pages) National Semiconductor (TI) – Power Management IC for Hard Drive Based Portable Media Players

Name
VDD3
VDD2
VBATT3
VBATT2
USBPWR
VDD1
CHG_DET
IREF
I/O
Type
Functional Description
Pin #
I
PWR
Power input to supply application. This pin must be externally shorted to VDD1 41
and VDD2.
I
PWR
Power input to supply application This pin must be externally shorted to VDD1
42
and VDD3.
O
A
Positive battery terminal. This pin must be externally shorted to V\BATT1 and
43
VBATT2.
O
A
Positive battery terminal. This pin must be externally shorted to VBATT1 and
44
VBATT3.
I
PWR
USB power input pin
45
I
PWR
Power input to supply application This pin is shorted to VDD2 and VDD3.
46
I
A
Wall adapter power input pin
47
I
A
A 121 kΩ resistor must be connected between this pin and AGND. The resistor 48
value determines the reference current for the internal bias generator.
5
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