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BD6085GUL
Datasheet
4. LED Driver
LED current value setting (for Main/Sub)
Internal circuit fixes maximum current value of LED.
LED current is maximum 30mA/ch.
LED current value setting (for Flash)
Internal circuit fixes maximum current value of LED.
When FLASHEN (Address 04h)=0, LED current is maximum 30mA/ch. (Normal mode)
When FLASHEN (Address 04h)=1, LED current change to x4 of Normal mode. (Flash mode)
At Normal mode, it can use for LCD Backlight or Torch mode of Flash.
At Flash mode, it can use for LED Flash.
The number of LED Lighting
The number of lighting for Main/Sub/Flash LED can be set up grouping by the register GRPSET*
(Address 00h).
The setting of the number of lighting is as the following.
The grouping of LED (Main/Sub/Flash) is independently controlled by register MLEDEN, SLEDEN, FLLEDEN
(Address 01h).
Grouping
setting
LED1 LED2 LED3 LED4 LED5 LED6
LED7
Main/Sub/Flash
(0,0,0)
Main
Main
Main
Main Flash Flash
Flash
4/0/3
(0,0,1)
Main
Main
Main
Main
Sub Flash
Flash
4/1/2
(0,1,0)
Main
Main
Main
Main
Sub
Sub
Flash
4/2/1
(0,1,1)
Main
Main
Main
Main
Sub -
Flash
4/1/1
(1,0,0)
Main
Main
Main
Main
Main
Sub
Flash
5/1/1
(1,0,1)
Main
Main
Main
Main
Main Flash
Flash
5/0/2
(1,1,0)
(1,1,1)
Main
Main
Main
Main
Main
Main
Main
Main
Main
Main
Main
Main
Flash
Flash
6/0/1
6/0/1
Grouping setting (*,*,*) means (“GRPSET2”,”GRPSET1”,”GRPSET0”).
The change of the Grouping setting with turning it on is prohibited.
The LED terminal that isn’t used must be connected to the ground.
Normal mode/Flash mode
Normal mode and Flash mode change as the figure of the follow.
ILED is set by the register.
FLLEDEN
FLASHEN
4×ILED
LED current
ILED
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
Normal mode
Flash mode
20/26
Normal mode
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
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