bq29312

SLUS546D − MARCH 2003 − REVISED SEPTEMBER 2004

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21

SCD: Short Circuit in Discharge Configuration Register

SCD REGISTER (0X08)

7

6

5

4

3

2

1

0

SCDT3

SCDT2

SCDT1

SCDT0

SCDV3

SCDV2

SCDV1

SCDV0

This register selects the short-circuit threshold voltage and delay for discharge.

SCD(b3−b0) with corresponding SC threshold voltage with 0000 as the default.

SCD(b3−b0): These bits select the value of the short-circuit voltage threshold

0000

0.10 V

0100

0.20 V

1000

0.30 V

1100

0.40 V

0001

0.125 V

0101

0.225 V

1001

0.325 V

1101

0.425 V

0010

0.150 V

0110

0.250 V

1010

0.350 V

1110

0.450 V

0011

0.175 V

0111

0.275 V

1011

0.375 V

1111

0.475 V

SCD(b7−b4): These bits select the value of the short-circuit delay time. Exceeding the short-circuit voltage threshold for

longer than this period will turn off the corresponding CHG, DSG, and ZVCHG output as has 0000 as the default.

SCD(b7−b4) with corresponding SC delay time

0000

0

µs

0100

244

µs

1000

488

µs

1100

732

µs

0001

61

µs

0101

305

µs

1001

549

µs

1101

793

µs

0010

122

µs

0110

366

µs

1010

610

µs

1110

854

µs

0011

183

µs

0111

427

µs

1011

671

µs

1111

915

µs