MB39C313 Datasheet, PDF (3/52 Pages) Fujitsu Component Limited. – 4ch System Power Management IC for LCD Panel

MB39C313
■ PIN DESCRIPTIONS
Block
Pin No. Pin name I/O
Descriptions
Vlogic
(Buck Converter)
15
FBB
I Vlogic Error Amp input pin
17
BOOT ⎯ Boot strap capacitor connection pin
18
SWB
O Vlogic inductor connection pin
1
FB
I Vs Error Amp input pin
2
COMP O Vs Error Amp output pin
28
SS
⎯ Vs Soft-start capacitor connection pin
Vs
(Boost Converter)
4
SW
I Vs Inductor connection pin
5
SW
3
OS
O Vs Synchronous rectifier FET output pin
27
GD
O
Vs External SW drive output pin
(NMOS open drain output)
VGL
11
(Negative Charge Pump) ₁₃
DRN
FBN
O VGL external flying capacitor connection pin
I VGL Error Amp input pin
VGH
10
(Positive Charge Pump)
14
DRP
FBP
O VGL external flying capacitor connection pin
I VGH Error Amp input pin
16
EN1
I Vlogic, VGL control pin
9
EN2
I Vs, VGH control pin
Control
12
FREQ
I Frequency set pin “L”: 500 kHz,“H”: 750 kHz
25
DLY1
⎯ VGL start time setting capacitor connection pin
26
DLY2
⎯ Vs, VGH start time setting capacitor connection pin
22
AVIN
⎯ Power supply pin
20
VINB
⎯ Vlogic Power supply pin
21
VINB
8
SUP
⎯ VGH Power supply pin
Power
24
REF
O Reference voltage output pin
6
PGND
⎯ Drive block ground pin
7
PGND
23
GND
⎯ Ground pin
19
NC
⎯ Non connection pin
DS04–27267–1E
3