AS1170 datasheet(42/53 Pages) AMSOSRAM

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AS1170

Datasheet

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DS001083

• v2-00 • 2024-Feb-05

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Addr: 9

PWM and indicator register

Bit

Bit name

Default

Access

Bit description

In flash and assist light mode (indicator mode

or low current mode using PWM always will

use pulseskip) if led_current1>=40h and

led_current2>=40h and current_boost=0, the

DCDC is running at 4 MHz or 1 MHz

(pulseskip is disabled) - results in improved

noise performance.

led_out1above2

Measure the voltage difference between LED_OUT1

vs.LED_OUT2 during operation of the DCDC.

Value

Description

V(LED_OUT1) > V(LED_OUT2) +

VLED_OUTCOMP_HYST

led_out2above1

Measure the voltage difference between LED_OUT1

vs. LED_OUT2 during operation of the DCDC.

Value

Description

V(LED_OUT2) > V(LED_OUT1) +

VLED_OUTCOMP_HYST

load_balance_on

R/W

Balance the current sinks (up to +/-10% of set current)

to improve application efficiency for unmatched LED

forward voltages - see Load Balancing.

Value

Description

Disabled.

Enabled.

(1) This register defines the PWM mode (e.g. for indicator) and 4/1 MHz mode switching.

AS1170 Datasheet(PDF) 42 Page - ams-OSRAM AG

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