BQ29330 Datasheet, PDF (23/26 Pages) Texas Instruments – 2-,3-,AND 4-CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE

bq29330
www.ti.com
SLUS673A – SEPTEMBER 2005 – REVISED DECEMBER 2005
OLD(b3-b0): These four bits select the value of the delay time for overload with a default of 0000.
0x00
1 ms
0x04
9 ms
0x08
17 ms
0x01
3 ms
0x05
11 ms
0x09
19 ms
0x02
5 ms
0x06
13 ms
0x0a
21 ms
0x03
7 ms
0x07
15 ms
0x0b
23 ms
0x0c
0x0d
0x0e
0x0f
25 ms
27 ms
29 ms
31 ms
SCC : Short Circuit In Charge configuration register
7
SCCD3
6
SCCD2
5
SCCD1
SCC REGISTER (0x08)
4
3
SCCD0
SCCV3
2
SCCV2
1
SCCV1
0
SCCV0
This register selects the short circuit in charge voltage threshold and delay.
SCCV (b3-b0) : These lower nibble bits select the value of the short circuit in charge voltage threshold with 0000 as the default.⁽¹⁾
0x00
0.100 V
0x04
0.200 V
0x08
0.300 V
0x0c
0.400 V
0x01
0.125 V
0x05
0.225 V
0x09
0.325 V
0x0d
0.425 V
0x02
0.150 V
0x06
0.250 V
0x0a
0.350 V
0x0e
0.450 V
0x03
0.175 V
0x07
0.275 V
0x0b
0.375 V
0x0f
0.475 V
(1) If RSNS bit is FUNCTION_CTL = 1, then the corresponding voltage threshold is divided by 2.
SCCD (b7-b4): These upper nibble bits select the value of the short circuit in charge delay time. Exceeding the short circuit in charge
voltage threshold for longer than this period turns off the CHG and DSG outputs. 0000 is the default.
0x00
0 µs
0x04
244 µs
0x08
488 µs
0x0c
732 µs
0x01
61 µs
0x05
305 µs
0x09
549 µs
0x0d
793 µs
0x02
122 µs
0x06
366 µs
0x0a
610 µs
0x0e
854 µs
0x03
183 µs
0x07
427 µs
0x0b
671 µs
0x0f
915 µs
SCD : Short Circuit In Discharge configuration register
7
SCDD3
6
SCDD2
5
SCDD1
SCD REGISTER (0x08)
4
3
SCDD0
SCDV3
2
SCDV2
1
SCDV1
0
SCDV0
This register selects the short circuit in discharge voltage threshold and delay.
SCDV(b3-b0) : These lower nibble bits select the value of the short circuit in discharge voltage threshold with 0000 as the default.⁽¹⁾
0x00
–0.100 V
0x04
–0.200 V
0x08
–0.300 V
0x0c
–0.400 V
0x01
–0.125 V
0x05
–0.225 V
0x09
–0.325 V
0x0d
–0.425 V
0x02
–0.150 V
0x06
–0.250 V
0x0a
–0.350 V
0x0e
–0.450 V
0x03
–0.175 V
0x07
–0.275 V
0x0b
–0.375 V
0x0f
–0.475 V
(1) If RSNS bit is FUNCTION_CTL = 1, then the corresponding voltage threshold is divided by 2.
SCCD (b7-b4): These upper nibble bits select the value of the short circuit in charge delay time. Exceeding the Short Circuit in charge
voltage threshold for longer than this period will turn off the CHG and DSG outputs. 0000 is the default.
0x00
0 µs
0x04
244 µs
0x08
488 µs
0x0c
732 µs
0x01
61 µs
0x05
305 µs
0x09
549 µs
0x0d
793 µs
0x02
122 µs
0x06
366 µs
0x0a
610 µs
0x0e
854 µs
0x03
183 µs
0x07
427 µs
0x0b
671 µs
0x0f
915 µs
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