ADP1655ACBZ-R7 datasheet(15/24 Pages) AD

部品番号	ADP1655ACBZ-R7

部品情報	Dual LED Flash Driver with I2C-Compatible Interface

PDF	24 Pages

Scroll/Zoom	100%

メーカー	AD [Analog Devices]

ホームページ	http://www.analog.com

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15 / 24 page

ADP1655

Rev. 0 | Page 15 of 24

STATE TRANSITIONS

When the ADP1655 is in flash mode, the TX_MASK pin can

be used to reduce the battery load. The device remains in flash

mode, but the LED driver output current is reduced to the assist

light level. In Figure 34, if the flash was triggered by the strobe

pin in level-sensitive mode, a timeout triggers a timeout fault,

as defined in the Safety Features section.

EXTERNAL

TORCH

FLASH

STANDBY

I2C/EN = 1

ASSIST

LIGHT

OUTPUT OFF

TIMEOUT

OUTPUT ON

STROBE = 1

OUTPUT ON

STROBE DISABLED

MODE = FLASH

MODE = ASSIST LIGHT

STROBE = 1

TX_MASK = 0

STROBE DISABLED

MODE = FLASH

TX_MASK = 0

OUTPUT ON

MODE = ASSIST LIGHT

TORCH NOT

ALLOWED

TORCH = 0

TORCH ALLOWED

MODE = TORCH

OUTPUT ON

STROBE = 1

OUTPUT ON

STROBE DISABLED

MODE = FLASH

OUTPUT OFF

TX_MASK ENABLED

TX_MASK = 1

EN1 = 0

EN2 = 1

Figure 34. I2C Interface Mode: State Transitions

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