BD6095GUL_11 Datasheet, PDF (1/42 Pages) Rohm – Mulitifunction Backlight LED Driver for Small LCD Panels (Charge Pump Type)

LED Drivers for LCD Backlights
Mulitifunction Backlight LED Driver
for Small LCD Panels (Charge Pump Type)
BD6095GUL,BD6095GU
No.11040EAT31
●Description
BD6095GUL/BD6095GU is “Intelligent LED Driver” that is the most suitable for the cellular phone.
It has many functions that are needed to "the upper side" of the cellular phone.
It has ALC function, that is “Low Power Consumption System” realized.
It has “Contents Adaptive Interface” (External PWM control), that is “Low Power Consumption System” realized.
It adopts the very thin CSP package that is the most suitable for the slim phone.
●Features
1) Total 5LEDs driver for LCD Backlight
It can set maximum 25.6mA /ch by 128steps (Current DAC) for LCD Display.
3LEDs(LED1~LED3) are same controlled.
Another 2LEDs(LED4~5) can be independent controlled. (Enable and Current setting)
2LEDs(LED4~5) can be attributed to “Main Group”.
“Main Group” can be controlled by Auto Luminous Control (ALC) system.
“Main Group” can be controlled by external PWM signal.
2) 1LED driver for Flash/Torch
It can set maximum 120mA for Flash LED Driver.
It has Flash mode and Torch mode, there can be changed by external pin or register.
3) Auto Luminous Control (ALC)
Main backlight can be controlled by ambient brightness.
Photo Diode, Photo Transistor, Photo IC(Linear/Logarithm) can be connected.
Bias source for ambient light sensor, gain and offset adjustment are built in.
LED driver current as ambient level can be customized.
4) 2ch Series Regulator (LDO)
It has selectable output voltage by the register.
LDO1,LDO2 : Iomax=150mA
5) Charge Pump DC/DC for LED driver
It has x1/x1.33/x1.5/x2 mode that will be selected automatically.
Soft start functions
Over voltage protection (Auto-return type)
Over current protection (Auto-return type)
6) Thermal shutdown (Auto-return type)
7) I²C BUS FS mode (max 400kHz)
8) VCSP50L3 (3.75mm², 0.55mmt max) Small and thin CSP package (BD6095GUL)
9) VCSP85H3 (3.75mm², 1.0mmt max) Small and thin CSP package (BD6095GU)
*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 official specification.
●Absolute Maximum Ratings (Ta=25 ^oC)
Parameter
Symbol
Ratings
Unit
Maximum voltage
VMAX
7
V
Power Dissipation
Pd
1500
mW
Operating Temperature Range
Topr
-35 ~ +85
o_C
Storage Temperature Range
Tstg
-55 ~ +150
o_C
note)Power dissipation deleting is 12.0mW/ ^oC, when it’s used in over 25 ^oC. (It’s deleting is on the board that is ROHM’s standard)
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2011.04 - Rev.A