AS3630 datasheet(54/72 Pages) AMSCO

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AS3630 – 54

8A Supercap Flash Driver

0Bh

PWM and

Indicator

ind_blink_delay

ind_current

led_out_pwm

Access

Reset Value

01b

000b

Control indicator blinking

function delay between blinks if

ind_on=1

00 ... continuously on (no

blinking)

01 ... 512ms

10 ... 1024ms

11 ... 2048ms

IND_OUT current setting if ind_on=1

000 … 1mA

001 … 2mA

010 … 3mA

011 … 4mA

100 … 5mA

101 … 6mA

110 … 7mA

111 … 8mA

PWM modulate LED_OUT current if

mode_setting=PWM operation; automatically

uses led_current_range=00 (10mA...2500mA)

but limits current to 303.9mA (codes 00h...1Fh

for led_current)

000 1/32 PWM at 15.625kHz- subharmonic

oscillation are possible - not recommended to

use

001 don’t use - use 1/16 instead

010 3/32 PWM at 15.625kHz

011 don’t use - use 2/16 instead

100 1/16 PWM at 31.25kHz

101 2/16 PWM at 31.25kHz

110 3/16 PWM at 31.25kHz

111 4/16 PWM at 31.25kHz

0Ch

Minimum LED

Current

led_current_min

Access

Reset Value

00h

At the beginning of a flash pulse, led_current_min is set to led_current then it is reduced upon following condition: (coil1_peak hit

and coil2_peak hit and curr_limit_curr_red=1); led_current_min has the same coding used as led_current (the current reduction

happens in steps as the coding of led_current is done)

Addr

Name

<D7>

<D6>

<D5>

<D4>

<D3>

<D2>

<D1>

<D0>

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