AS8002 datasheet(18/25 Pages) AMSCO

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AS8002

Data Sheet - D e t a i l e d D e s c r i p t i o n

Table 12. 04h

Address:

04h

Over Temperature Threshold Register

Set the over temperature threshold value

Bit

Bit Name

Default

Access

Description

7:0

over_temp_thres

FFh

R/W

Over temperature detection is triggered when temp value is higher than

over_temp_thres

Table 13. 05h

Address:

05h

Interrupt Enable Register

Separately enables the interrupts

Bit

Bit Name

Default

Access

Description

over_temp_int_en

R/W

0: Interrupt due to over temperature is disabled

1: Interrupt due to over temperature is enabled

under_voltage_int_en

R/W

0: Interrupt due to under voltage is disabled

1: Interrupt due to under voltage is enabled

over_current_int_en

R/W

0: Interrupt due to over current is disabled

1: Interrupt due to over current is enabled

Table 14. 06h

Address:

06h

Over Current Range Register

Set the over current comparators absolute threshold voltage

Bit

Bit Name

Default

Access

Description

7:0

over_current_range

FFh

R/W

The threshold voltage is given by the formula:

over_current_range*1m

(EQ 6)

Where:

over_current_range should be higher than 10h

Table 15. 10h

Address:

10h

Current Measurement MSB Register

Gives measured value of current (MSB) and status of warnings and interrupts

Bit

Bit Name

Default

Access

Description

3:0

curr_meas[11:8]

MSB of current channel measurement, value is given as 2’s complement

number by the formula:

I=curr_meas*1.22m / (Rshunt*curr_gain)

(EQ 7)

interrupt detected

Same value as XINT (complemented)

0: No interrupt detected

1: Interrupt is detected

warning detected

Over temperature, under voltage or over current detected

0: No warning detected

1: Warning detected

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