Datasheet

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SCD: Short Circuit in Discharge Configuration Register
bq29312A
SLUS629A – JANUARY 2005 – REVISED AUGUST 2005
This register selects the short-circuit threshold voltage and delay for charge.
SCC(b3–b0) : These bits select the value of the short-circuit voltage threshold with 0000 as the default.
SCC(b3–b0) with corresponding SC threshold voltage
0000 0.100 V 0100 0.200 V 1000 0.300 V 1100 0.400 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
SCC(b7–b4): These bits select the value of the short-circuit delay time. Exceeding the short-circuit voltage
threshold for longer than this period turns off the corresponding CHG, DSG, and ZVCHG output. 0000 is the
default.
SCC(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
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 turns 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
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