AS1170 datasheet(36/53 Pages) OSRAM

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AS1170

Datasheet

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DS001083

• v2-00 • 2024-Feb-05

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(2) Do not use current_boost=1 for currents <= 900 mA

8.4

Low voltage register

Table 10: Low voltage register

Addr: 4

Low voltage register

Bit

Bit name

Default

Access

Bit description

2:0

vin_low_v_run

R/W

Voltage level on VIN where current reduction triggers during

operation (see Current Reduction by VIN measurements in

flash mode - only in flash mode; if VIN drops below this

voltage during current ramp up, the current ramp up is

stopped; during operation the current is decreased until the

voltage on VIN rises above this threshold - fault_uvlo is set.

Value

Description

Function is disabled

3.0 V

3.07 V

3.14 V

3.22 V - default

3.3 V

3.38 V

3.47 V

5:3

vin_low_v

R/W

Voltage level on VIN where driver will change current before

startup (only in flash mode) if before startup (out_on set from

0 to 1), the voltage on VIN is below vin_low_v, the current is

changed to 0 = shutdown (vin_low_v_shutdown=1) and

fault_uvlo is set.

Value

Description

Function is disabled

3.0 V

3.07 V

3.14 V

3.22 V

3.3 V - default

3.38 V

3.47 V

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