AS3701 datasheet(74/110 Pages) AMSOSRAM

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ams Datasheet

Page 73

[v1-11] 2016-Dec-14

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AS3701 − Register Description

Figure 84:

Startup_Control

Addr:33h

Startup_Control

Bit

Bit Name

Default

Access

Bit Description

chg_pwr_off_

Select charger detection in power OFF mode

Read only (OTP setting)

0 : Exit of Power OFF mode, if charger is detected (level

detection)

1 : Exit of Power OFF mode, if charger insertion is detected

(rising edge detection)

power_off_at_

vsuplow

RW_SM

Switch into Power OFF mode if low VSUP is detected

during active or standby mode

(Pin ON = low and bit auto_off = 0)

0 : If low VSUP(ResVoltFall) is detected, enter VSUP

Debounce state, continuously monitor VSUP voltage and

startup if VSUP voltage is above ResVoltRise

1 : If low VSUP(ResVoltFall) is detected, enter power OFF

mode

stby_reset_

disable

Disable Reset output signal (PIN XRES) in standby mode

0 : Normal mode, reset is active in standby mode

1 : No reset in standby mode and during exit of standby

mode

auto_off

Defines startup behavior at first battery insertion

0 : Startup of chip if VBAT>ResVoltRise

1 : Enter power OFF mode (Startup with ON key or charger

insertion)

3:2

off_delay

b01

Set Delay between I²C command, GPIO or Reset signal for

power_off, standby mode or reset

and execution of that command

0 : No delay

1 : 8 ms (default)

2 : 16 ms

3 : 32 ms

1:0

res_timer

b00

RW_SM

Set RESTime, after the last regulator has started

0 : RESTIME=10ms (default)

1 : RESTIME=50ms

2 : RESTIME=100ms

3 : RESTIME=150ms

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