BQ76PL536A_16 Datasheet, PDF (11/74 Pages) Texas Instruments – Cell Lithium-Ion Battery Monitor and Secondary Protection IC

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bq76PL536A
SLUSAD3B – JUNE 2011 – REVISED JANUARY 2016
Electrical Characteristics (continued)
Typical values stated where T_A = 25°C and V_BAT = 20 V, Min/Max values stated where T_A = –40°C to 85°C and V_BAT = 7.2 V
to 27 V (unless otherwise noted)
PARAMETER
TEST CONDITION
MIN TYP MAX UNIT
V_{DELTA_FALL}
Voltage delta between
trip points
V_UVLO – V_POR (V_BAT falling)
0.4 0.52
0.7 V
BATTERY PROTECTION THRESHOLDS
V_OVR
OV detection threshold
range ⁽⁷⁾
2
5V
ΔV_OVS
OV detection threshold
program step
50
mV
V_OVH
V_OVA1
OV detection hysteresis
OV detection threshold
accuracy
3.3 ≤ V_{OV_SET} ≤ 4.5
50
mV
–50
0
50 mV
V_OVA2
OV detection threshold
accuracy
V_{OV_SET} < 3.3 or V_{OV_SET} > 4.5
–70
0
70 mV
V_UVR
UV detection threshold
range ⁽⁷⁾
700
3300 mV
ΔV_UVS
UV detection threshold
program step
100
mV
V_UVH
V_UVA
UV detection hysteresis
UV detection threshold
accuracy
100
mV
–100
0
100 mV
V_OTR
OT detection threshold
range ⁽⁸⁾
V_REG50 = 5 V
1
2V
Δ_VOTS
OT detection threshold
program step⁽⁸⁾
See ⁽⁹⁾
V
V_OTA
OT detection threshold
accuracy ⁽⁸⁾
T = 40°C to 90°C
0.04 0.05 V
ΔV_OTH
OT reset hysteresis
T = 40°C to 90°C
BATTERY PROTECTION DELAY TIMES
8% 12% 15%
t_OV
OV detection delay-time
range
0
3200 ms
Δt_OV
OV detection delay-time ^{COVT [µs] = 0}
step
COVT [ms] = 1
100
µs
100
ms
t_UV
UV detection delay-time
range
0
3200 ms
Δt_UV
UV detection delay-time ^{CUVT[7] (µs) = 0}
step
CUVT[7] (ms) = 1
100
µs
100
ms
t_OT
OT detection delay-time
range
0
2550 ms
Δt_OT
OT detection delay-time
step
10
ms
OV, UV, and OT
t_acr
detection delay-time
CUVT, (COVT) ≥ 500 µs
accuracy ⁽¹⁰⁾
–12%
0% 10%
t_(DETECT)
Protection comparator
detection time
V_OT or V_OV or V_UV threshold exceeded by 10 mV
100 µs
(7) COV and CUV thresholds must be set such that COV – CUV ≥ 300 mV.
(8) Using recommended components. Consult Table 2 in text for voltage levels used.
(9) See Table 2 for trip points.
(10) Under double or multiple fault conditions (of a single type), the second or greater fault may have its delay time shortened by up to the
step time for the fault. For example, the second and subsequent COV faults occurring within the delay time period for the first fault may
have their delay time shortened by up to 100 µs.
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