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ROHM Semiconductor - 12V Input Multi-Channel System Power Supply IC

Numéro de référence BM81110MUW
Description 12V Input Multi-Channel System Power Supply IC
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BM81110MUW fiche technique
Datasheet
Power supply IC series for TFT-LCD panels
12V Input Multi-Channel
System Power Supply IC
BM81110MUW
General Description
BM81110MUW is a system power supply for TFT-LCD
panels used for liquid crystal TVs. This IC is
incorporated with Negative and Positive charge pump
controllers and Gate Pulse Modulation (GPM) function. It
also features built-in EEPROM to contain each setting
voltage, soft start time, etc.
Features
Step-up DC/DC converter (AVDD)
(Synchronous rectification, built-in load switch)
Step-down DC/DC converter 1 (VIO)
(Non-synchronous rectification)
Step-down DC/DC converter 2 (VCORE)
(Synchronous rectification)
Step-down DC/DC converter 3 (HAVDD)
(Synchronous rectification)
Positive charge pump controller (VGH)
Negative charge pump controller (VGL)
Gate Pulse Modulation (GPM) function
Output voltage control by I2C
Built-in EEPROM
Switching Frequency 750kHz (AVDD, VIO)
Switching Frequency 1MHz (VCORE, HAVDD)
Applications
TFT-LCD panel
Typical Application CircuitTOP VIEW
SW
VGH
Key Specifications
Input voltage range
AVDD Output voltage range
VIO Output voltage range
VCORE Output voltage range
HAVDD Output voltage range
VGH Output voltage range
VGL Output voltage range
Switching Frequency
Operating temperature range
8.6V to 14.7V
13.5V to 19.8V
2.2V to 3.7V
0.8V to 3.3V
4.8V to 11.1V
20V to 35V
-14.5V to -5.5V
750kHz(Typ)
1MHz(Typ)
-40to +85
Package
VQFN40W6060A
W(Typ) x D(Typ) x H(Max)
6.00mm x 6.00mm x 0.8mm
AVDD
HAVDD
VCORE
VIO
VIN
EN
PGND2
SWB2
VDD2
CTRL
VINB2
VDD1
SWB1
SWB1
N.C.
VIN
BM81110MUW
VGL
N.C.
SWO
SWI
SW
SW
PGND
PGND
NTC
VL
SWB1
VGL
AVDD
VIN
Θ
Figure1. Application Circuit
Product structureSilicon monolithic chip
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This chip
has no designed
1/46
protection against radioactive rays.
TSZ02201-0313AAF00410-1-2
2015.08.10 Rev.002

PagesPages 30
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