BQ33100_15 Datasheet, PDF (46/67 Pages) Texas Instruments – Super Capacitor Manager

bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
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Table 70. SCDV (b2-b0) Configuration Bits with Corresponding Voltage Threshold When
STATE_CTL[RSNS] = 1
SETTING
0x00
0x01
0x02
0x03
THRESHOLD
0.050 V
0.075 V
0.100 V
0.125 V
SETTING
0x04
0x05
0x06
0x07
THRESHOLD
0.150 V
0.175 V
0.200 V
0.225 V
SETTING
0x00
0x01
0x02
0x03
Table 71. SCDD (b7-b4) Configuration Bits with Corresponding Delay Time
DELAY
0 us
61 us
112 us
183 us
SETTING
0x04
0x05
0x06
0x07
DELAY
244 us
305 us
366 us
427 us
SETTING
0x08
0x09
0x0a
0x0b
DELAY
488 us
549 us
610 us
671 us
SETTING
0x0c
0x0d
0x0e
0x0f
DELAY
732 us
793 us
854 us
915 us
8.5.3.4.4 SC Chg Cfg
The SC Chg Cfg is programmed into the SCC register of the integtrated AFE device. The SC Chg Cfg sets the
short circuit in charging voltage threshold and the short circuit in charging delay. Changes to this data flash value
requires a firmware full reset or a power reset of the bq33100 to take effect.
Table 72. SC Chg Cfg
SUBCLASS
ID
1
SUBCLASS
NAME
Current
OFFSET
20
NAME
SC Chg Cfg
FORMAT
Hex
SIZE IN
BYTES
1
MIN
VALUE
0x00
MAX
VALUE
0xF7
DEFAULT
VALUE
0xF7
UNIT
—
7
SCCD3
6
SCCD2
5
SCCD1
Figure 13. SCC Register
4
3
SCCD0
—
2
SCCV2
1
SCCV1
0
SCCV0
0000 is the bq33100 power on reset default.
SCCD3, SCCD2, SCCD1, SCCD0 — Sets the short circuit delay in charging of the integrated AFE.
0x0 - 0xf = sets the short circuit in charging delay between 0 ms to 915 ms in 61 ms steps.
If STATE_CTL[SCDDx2] is set, the delay time is double of that programmed in this register.
SCCV2, SCCV1, SCCV0 — Sets the short circuit voltage threshold (VSRP-VSRN)) in charging of the integrated
AFE
[RSNS] = 0, 0x0 - 0x7 sets the short circuit voltage threshold between 100 mV and 450 mV in 50 mV steps
[RSNS] = 1, 0x0 - 0x7 sets the short circuit voltage threshold between 50 mV and 475 mV in 25 mV steps
SCC (b3) — Not used.
Table 73. SCCV (b2-b0) Configuration Bits with Corresponding Voltage Threshold When
STATE_CTL[RSNS] = 0
SETTING
0x00
0x01
0x02
0x03
THRESHOLD
–0.100 V
–0.150 V
–0.200 V
–0.250 V
SETTING
0x04
0x05
0x06
0x07
THRESHOLD
–0.300 V
n/a
n/a
n/a
46
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