BQ33100_15 Datasheet, PDF (45/67 Pages) Texas Instruments – Super Capacitor Manager

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bq33100
SLUS987B – JANUARY 2011 – REVISED DECEMBER 2015
0000 is the bq33100 power on reset default.
OCDD3, OCDD2, OCDD1, OCDD0 — Sets the overcurrent in discharging delay of the integrated AFE.
0x0 - 0xf = sets the overvoltage trip delay between 1 ms to 31 ms in 2 ms steps
OCDD (b7...b4) — Not used.
SETTING
0x00
0x01
0x02
0x03
Table 67. OCDD (b7-b4) Configuration Bits With Corresponding Delay Time
DELAY
1 ms
3 ms
5 ms
7 ms
SETTING
0x04
0x05
0x06
0x07
DELAY
9 ms
11 ms
13 ms
15 ms
SETTING
0x08
0x09
0x0a
0x0b
DELAY
17 ms
19 ms
21 ms
23 ms
SETTING
0x0c
0x0d
0x0e
0x0f
DELAY
25 ms
27 ms
29 ms
31 ms
8.5.3.4.3 SC Dsg Cfg
The SC Dsg Cfg is programmed into the SCD register of the integtrated AFE device. The SC Dsg Cfg sets the
short circuit in discharging voltage threshold and the short circuit in discharging delay. Changes to this data flash
value requires a firmware full reset or a power reset of the bq33100 to take effect.
Table 68. SC Dsg Cfg
SUBCLASS SUBCLASS
ID
NAME
1
Current
OFFSET
21
NAME
SC Dsg Cfg
FORMAT
Hex
SIZE IN
BYTES
1
MIN
VALUE
0x00
MAX
VALUE
0x0F
DEFAULT
VALUE
0x0F
UNIT
—
7
SCDD3
6
SCDD2
5
SCDD1
Figure 12. SCD Register
4
3
SCDD0
—
2
SCDV2
1
SCDV1
0
SCDV0
0000 is the bq33100 power on reset default.
SCDD3, SCDD2, SCDD1, SCDD0 — Sets the short circuit delay in discharging of the integrated AFE.
0x0 - 0xf = sets the short circuit in discharging 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.
SCDV2, SCDV1, SCDV0 — Sets the short circuit voltage threshold (VSRP-VSRN)) in discharging 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
SCD (b3)— Not used.
Table 69. SCDV (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
0.350 V
0.400 V
0.450 V
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