AS3630 datasheet(47/72 Pages) AMSCO

47 / 72 page

8A Supercap Flash Driver

AS3630 – 47

03h

Boost/TXMask

Current

led_current_range

curr_limit_curr_r

coil1_txmask_curr_red

txmask_torch_mode

Access

Reset Value

00b

011b

00b

Comment

Range setting for led_current

00...10-2500mA range

01...10-250mA range

10...2500-3000mA range

11...don’t use

use range “10” only for currents

above 2500mA

Reduce LDCDC1 current in steps of coil1_peak

currents during TXMask

(this is a delta value; e.g. -1 means one current

step reduction e.g. from 2.5A to 2.0A; -4

means four steps e.g. from 2.5A to 750mA. if

the reduction would result in a negative value,

DCDC1 is switch off during TXMask event)

000 … -1

001 … -2

010 … -3

011 … -4 - default value

100 … -5

101 … -6

Function of TXMASK/TORCH

00 … no effect (default)

01 … txmask operation

mode (applies for flash

mode, mode_setting=111b)

10 … external torch mode

(applies for shutdown mode,

mode_setting=000b or

001b, max. led_current

≤

460mA)

11 … don't use

110 … -7

111 … -8

If set, reduce LED current if LDCDC1 and LDCDC2 currents are hit and current source ILED cannot drive

the output current.

Note: In flash mode LDCDC1 is usually operated in current limit.

Addr

Name

<D7>

<D6>

<D5>

<D4>

<D3>

<D2>

<D1>

<D0>

AS3630 Datasheet(PDF) 47 Page - ams AG

AS3630 Datasheet(HTML) 47 Page - ams AG

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