AS1170 datasheet(37/53 Pages) AMSOSRAM

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AS1170

Datasheet

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DS001083

• v2-00 • 2024-Feb-05

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Addr: 4

Low voltage register

Bit

Bit name

Default

Access

Bit description

vin_low_v_shutdown

R/W

Enables shutdown of current reduction under low voltage

conditions.

Value

Description

If before startup (out_on set from 0 to 1), the

voltage on VIN is below vin_low_v, the current is

changed to fault_uvlo is set.

If before startup (out_on set from 0 to 1), the

voltage on VIN is below vin_low_v, the operating

mode stays in shutdown (zero LED current) and

fault_uvlo is set.

const_v_mode

R/W

Enables constant output voltage mode.

Value

Description

Normal operation defined by mode_setting.

(1) This register defines the operating mode with low battery voltage.

8.5

Flash timer register

Table 11: Flash timer register

Addr: 5

Flash timer register

Bit

Bit name

Default

Access

Bit description

7:0

flash_timeout (2)

23h

R/W

Define the duration of the flash timer and timeout timer.

Value

Description

1 ms

2 ms

3 ms

...

23h

36 ms - default

...

128 ms

136 ms (now 8 ms LSB steps from here on) (3).

142 ms

150 ms

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