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LED Drivers for LCD Backlights
Multifunction Backlight LED Drivers
for Small LCD Panels (Charge Pump Type)
BD6081GU, BD6081GVW
No.11040EAT27
7) I C BUS Fast-mode (max 400kHz)Writing
● Description
BD6081GU / BD6081GVW is compound LED Driver which is the most suitable for the cellular phone.
Main LCD Back Light LED Driver (Max 4 Light), Sub LCD Back Light LED Driver (Max 2 Light), 2 system RGB LED Drivers,
2Ch LDO (2.8V/1.8V) included. This is PMIC (Power Management IC) that is the most suitable for "the indication part" of the
cellular phone.A charge pump form is adopted, and a coil is never used for the part DC/DC. This IC achieves compact size
with the chip size package (VCSP85H3). [BD6081GU] This IC solves a mounting problem by BGA package
(SBGA063W060). [BD6081GVW]
● Features
1) Main LCD Back Light LED Driver (Max 4 Light)
4 Lighting / 3 Lighting can be chosen (register setting)
2) Sub LCD Back Light LED Driver (Max 2 Light)
2 Lighting / 1 Lighting can be chosen (register setting)
3) RGB LED Driver (2 System)
Slope control is built in.(2 system independence can be controlled.)
LED connection (for G1LED,G2LED,B1LED,B2LED) can be set up in the battery or the DC/DC output.(register setting)
LED connection (for R1LED,R2LED) can be set up in the battery only.
4) 2ch Series Regulator
2.8V output Iomax=150mA
1.8V output Iomax=150mA(normal mode)
1.8V output low current consumption mode / normal mode Switching is possible. (The outside pin control / register setting)
5) Charge Pump DC/DC
Soft start Functions
Over voltage protection (Auto-return type)
Over current protection (Auto-return type)
6) Thermal shutdown (Auto-return type)
2
*This chip is not designed to protect itself against radioactive rays.
*This material may be changed on its way to designing.
*This material is not the specification.
● Absolute Maximum Ratings (Ta=25 ℃ )
Parameter
Maximum Applied voltage
Symbol
VMAX
Ratings
7
Unit
V
Power Dissipation
BD6081GU
BD6081GVW
Pd
Pd
1725 note1)
1060 note2)
mW
mW
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-25 ～ +85
-55 ～ +150
℃
℃
cote1)Power dissipation deleting is 13.8mW/ ℃ , when it’s used in over 25 ℃ .
(It’s deleting is on the board that is ROHM’s standard))
Note2)Power dissipation deleting is 8.48mW/ ℃ , when it’s used in over 25 ℃ .
(It’s deleting is on the board that is ROHM’s standard))
● Operating conditions (VBAT ≥ VIO, Ta=-25~85 ℃ )
Parameter
VBAT input voltage
VIO pin voltage
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
Symbol
VBAT
VIO
1/35
Ratings
2.7 ～ 5.5
1.65 ～ 3.3
Unit
V
V
2011.04 - Rev.A
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