AS3636 datasheet(34/42 Pages) AMSCO

34 / 42 page

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Revision 0.7

34 - 42

with additional features

with photosensor

AS3636

Preliminary Datasheet, Confidential - D e ta i l e d D e s c r i p t i o n

phsens_on

0R/W

Enable the photosensor detection circuit - see Photosensor

Detection circuit on page 16

disabled

photosensor circuit enabled

Table 25. Xenon Voltage ADC

Addr: 18h

Xenon Voltage ADC

Measure last charged voltage of the Xenon charger

Bit

Bit Name

Default Access

Description

6:0

xenon_charge_voltage

00h

Last measured voltage on Xenon charger (represents

scaled voltage on CFLASH) - only valid during charging

(CHARGE=1)

1 or right after end of charge

0VSW_F=lowest reading

...

127d

VSW_F=highest reading

xenon_adc_on

0R/W

Xenon Charge ADC on - measures voltage on SW_F

disabled

Internal ADC running if xenon charger

running (CHARGE=1)

1. For reading of xenon_charge_voltage, CHARGE should be set to ‘0’. If reading of xenon_charge_voltage is

required during CHARGE=1, read xenon_charge_voltage twice and compare the results. If both readings show

the same result, the value is valid, otherwise re-start the readout.

Table 24. Photosensor Register (Continued)

Addr: 18h

Photosensor Register

External Photosensor control -

see Photosensor Detection circuit on page 16

Bit

Bit Name

Default Access

Description

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