AS3682 datasheet(13/43 Pages) AMSCO

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AS3682

austriamicrosystems

Data Sheet

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Revision 2.21

13 - 43

to address e.g., six white LEDs. After presetting the current with the dedicated pins the actual brightness can also

be adjusted by PWM applied to the related pins.

Note: The Hard Flash Modes are factory preset. Refer to Ordering Information on page 42.

Note: The AS3682 has been designed and qualified for the following operating conditions:

- Continuous output current of 400mA if operated in automatic switch mode at VBAT = 3.2 to 4.2V.

- Maximum Pulsed Output current: 480mA.

Table 9. AS3682 Function Settings

Feature

Normal Mode

Soft Flash

Mode

Hard Flash Mode 1

Hard Flash Mode 2

Interface

I2CI2C

Dedicated Control

Pins for Strobe (3x)

and Preview (3x)

Dedicated Control Pins

for Flash (3x) and

General Purpose (3x)

Flash LEDs

Current Sinks

Total Current

0 to 450mA

0 to 480mA

Strobe:

0 to 450mA

Preview:

0 to 400mA

Flash:

0 to 450mA

Addressable

Block

Strobe Trigger

STROBE/F2

or software

STROBE/F2

or software

By Strobe

Control Pins

By Flash Control Pin

Strobe Preview

GPIO0/P0

or software

GPIO0/P0

or software

By Preview

Control Pins

General Purpose

LEDs (CURR2,

CURR3, CURR4)

Current Sinks

N/A

Current per Sink

0 to 37.5mA

0 to 160mA

N/A

0 to 20/37.5mA

Addressable

Individual

N/A

Block

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