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BD6062GU
ii) Register control interface(3wired) mode (timer disable)
Torch
(Address : 00 (H), D[0])
Flash
Technical Note
(Address : 00 (H), D[1])
I LED
I LED2
t FLASH2
(0mA)
I LED1
ILED1 : Torch Current Driver
ILED2 : Flash Current Driver
tFLASH2 : Flash period protect
Fig.30 3wired mode Torch and Flash Timing (Timer disable)
If flash period is over tFLASH2 setting, flash current driver will enable to turn off.
Protect time is controlled by flash ON timer resister setting.
iii) Direct control interface mode
TORCH (Pin)
FLASH (Pin)
500ms
800mA
I LED
(0mA)
200mA
There is LED protect function in this mode.
Flash period is over 500ms, then this mode turn off flash.
Fig.31 Direct Control mode Torch and Flash Timing
iv) The voltage of VFB is as follows, (in DC/DC on)
Torch mode ? 350mV
Flash mode ? 350mV
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
10/15
2011.05 - Rev.B
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