BQ40Z50 Datasheet, PDF (16/30 Pages) Texas Instruments – 1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager

bq40z50
SLUSBS8 – DECEMBER 2013
www.ti.com
OCD, SCC, SCD1, SCD2 CURRENT PROTECTION THRESHOLDS
Typical values stated where T_A = 25°C and VCC = 14.4 V, Min/Max values stated where T_A = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
V_OCD
ΔV_OCD
V_SCC
ΔV_SCC
V_SCD1
ΔV_SCD1
V_SCD2
ΔV_SCD2
V_OFFSET
V_SCALE
PARAMETER
OCD detection
threshold voltage range
OCD detection
threshold voltage
program step
SCC detection
threshold voltage range
SCC detection
threshold voltage
program step
SCD1 detection
threshold voltage range
SCD1 detection
threshold voltage
program step
SCD2 detection
threshold voltage range
SCD2 detection
threshold voltage
program step
OCD, SCC, and SCDx
offset error
OCD, SCC, and SCDx
scale error
TEST CONDITION
V_OCD = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_OCD = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_OCD = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_OCD = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_SCC = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_SCC = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_SCC = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_SCC = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_SCD1 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_SCD1 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_SCD1 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_SCD1 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_SCD2 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_SCD2 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
V_SCD2 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 1
V_SCD2 = V_SRP – V_SRN, AFE PROTECTION
CONTROL[RSNS] = 0
Post-trim
No trim
Post-trim
MIN
–16.6
–8.3
44.4
22.2
–44.4
–22.2
–44.4
–22.2
–2.5
–10
–5
TYP
–5.56
–2.78
22.2
11.1
–22.2
–11.1
–22.2
–11.1
MAX
–100
–50
200
100
–200
–100
–200
–100
2.5
10
5
UNIT
mV
mV
mV
mV
mV
mV
mV
mV
mV
%
OCD, SCC, SCD1, SCD2 CURRENT PROTECTION TIMING
Typical values stated where T_A = 25°C and VCC = 14.4 V, Min/Max values stated where T_A = –40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
t_OCD
OCD detection
delay time
Δt_OCD
OCD detection
delay time
program step
t_SCC
SCC detection
delay time
Δt_SCC
SCC detection
delay time
program step
TEST CONDITION
MIN
TYP
MAX
UNIT
1
31
ms
2
ms
0
915
µs
61
µs
16
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