BQ29312_15 Datasheet, PDF (21/39 Pages) Texas Instruments – FOUR CELL LITHIUM-ION

www.ti.com
OLV: Overload Voltage Threshold Register
OLV REGISTER (0x05)
7
6
5
4
3
0
0
0
OLV4
OLV3
bq29312
SLUS546E – MARCH 2003 – REVISED MARCH 2005
2
OLV2
1
OLV1
0
OLV0
OLV (b4–b0): These five bits select the value of the over load threshold with a default of 00000.
OLV (b4–b0) configuration bits with corresponding voltage threshold
00000
00001
00010
00011
00100
00101
00110
00111
0.050 V
0.055 V
0.060 V
0.065 V
0.070 V
0.075 V
0.080 V
0.085 V
01000
01001
01010
01011
01100
01101
01110
01111
0.090 V
0.095 V
0.100 V
0.105 V
0.110 V
0.115 V
0.120 V
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
OLT: Overload Blanking Delay Time Register
OLT REGISTER (0x06)
7
6
5
4
3
0
0
0
0
OLT3
2
OLT2
1
OLT1
OLT(b3–b0): These four bits select the value of the delay time for overload with a default of 0000.
OLT(b3–b0) configuration bits with corresponding delay time
0000
0001
0010
0011
1 ms
3 ms
5 ms
7 ms
0100
0101
0110
0111
9 ms
11 ms
13 ms
15 ms
1000
1001
1010
1011
17 ms
19 ms
21 ms
23 ms
1100
1101
1110
1111
0
OLT0
25 ms
27 ms
29 ms
31 ms
SCC: Short Circuit in Charge Configuration Register
7
SCCT3
6
SCCT2
5
SCCT1
SCC REGISTER (0x07)
4
3
SCCT0
SCCV3
2
SCCV2
1
SCCV1
0
SCCV0
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
0001
0010
0011
0.100 V
0.125 V
0.150 V
0.175 V
0100
0101
0110
0111
0.200 V
0.225 V
0.250 V
0.275 V
1000
1001
1010
1011
0.300 V
0.325 V
0.350 V
0.375 V
1100
1101
1110
1111
0.400 V
0.425 V
0.450 V
0.475 V
21