BQ29311_15 Datasheet, PDF (15/24 Pages) Texas Instruments – FOUR-CELL LITHIUM-ION

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Not Recommended for New Designs
bq29311
SLUS487D − DECEMBER 2001 − REVISED NOVEMBER 2003
SDV: SHUTDOWN VOLTAGE
7
BOV3
6
BOV2
5
BOV1
SDV REGISTER (0X02)
4
3
BOV0
SDV3
2
SDV2
1
SVD1
0
SDV0
The SDV register is used to configure the regulator shutdown and brownout thresholds. 00000000 is the default.
SDV b3...b0 With Corresponding Threshold
0000
0001
0010
0011
6.475 V
6.775 V
7.075 V
7.375 V
0100
0101
0110
0111
7.675 V
7.975 V
8.275 V
8.575 V
1000
1001
1010
1011
8.875 V
9.175 V
9.475 V
9.775 V
1100
1101
1110
1111
10.075 V
10.375 V
10.675 V
10.975 V
SDV b7...b4 With Corresponding Threshold
0000
0001
0010
0011
7.975 V
8.275 V
8.575 V
8.875 V
0100
0101
0110
0111
9.175 V
9.475 V
9.775 V
10.075 V
1000
1001
1010
1011
10.375 V
10.675 V
10.975 V
11.275 V
1100
1101
1110
1111
11.575 V
11.875 V
12.175 V
12.475 V
OCVD: OVERCURRENT (OVERLOAD) VOLTAGE THRESHOLD IN DISCHARGE
OCVD REGISTER (0X03)
7
6
5
4
3
2
1
0
−
−
−
OCVD4
OCVD3
OCVD2
OCVD1
OCVD0
OCVD b0−b4 (OCVD0−OCVD4): These five bits select the value of the overcurrent threshold in the discharge direction.
00000 is the default.
OCVD b4...b0 With Corresponding Threshold
00000
0.050 V
01000
0.090 V
00001
0.055 V
01001
0.095 V
00010
0.060 V
01010
0.100 V
00011
0.065 V
01011
0.105 V
00100
0.070 V
01100
0.110 V
00101
0.075 V
01101
0.115 V
00110
0.080 V
01110
0.120 V
00111
0.085 V
01111
0.125 V
10000
10001
10010
10011
10100
10101
10110
10111
0.130 V
0.135 V
0.140 V
0.145 V
0.150 V
0.155 V
0.160 V
0.165 V
11000
11001
11010
11011
11100
11101
11110
11111
0.170 V
0.175 V
0.180 V
0.185 V
0.190 V
0.195 V
0.200 V
0.205 V
OCVC: OVERCURRENT VOLTAGE THRESHOLD REGISTER
OCVC REGISTER (0X04)
7
6
5
4
3
2
1
0
−
−
−
OCVC4
OCVC3
OCVC2
OCVC1
OCVC0
OCVC b0−b4 (OCVC0 −OCVC4): These five bits select the value of the overcurrent threshold in the charge direction.
00000 is the default.
OCVC b4...b0 With Corresponding Threshold
00000
0.050 V
01000
0.090 V
00001
0.055 V
01001
0.095 V
00010
0.060 V
01010
0.100 V
00011
0.065 V
01011
0.105 V
00100
0.070 V
01100
0.110 V
00101
0.075 V
01101
0.115 V
00110
0.080 V
01110
0.120 V
00111
0.085 V
01111
0.125 V
10000
10001
10010
10011
10100
10101
10110
10111
0.130 V
0.135 V
0.140 V
0.145 V
0.150 V
0.155 V
0.160 V
0.165 V
11000
11001
11010
11011
11100
11101
11110
11111
0.170 V
0.175 V
0.180 V
0.185 V
0.190 V
0.195 V
0.200 V
0.205 V
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