Datasheet

bq76PL536A
www.ti.com SLUSAD3A –JUNE 2011–REVISED AUGUST 2012
UNDERVOLTAGE LOCKOUT (UVLO) and POWER-ON RESET (POR)
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 NOM MAX UNIT
V
UVLO
Negative-going threshold 5 5.6 V
V
UVLO_HSY
Hysteresis 250 375 500 mV
UVLO
DELAY
Delay to locked-out condition V ≤ V
UVLO
MIN 15 μs
V
POR
Negative-going threshold 4 5 V
V
POR_HSY
Hysteresis 250 500 750 mV
POR
DELAY
Delay to disabled condition V ≤ V
POR
MIN 15 µs
t
RST
Reset delay time V ≥ V
POR
+ V
POR_HSY
40 56 70 ms
V
DELTA_RISE
Voltage delta between trip points V
UVLO
– V
POR
(V
BAT
rising) 0.3 0.4 0.7 V
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
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 NOM MAX UNIT
V
OVR
OV detection threshold range
(1)
2 5 V
ΔV
OVS
OV detection threshold program step 50 mV
V
OVH
OV detection hysteresis 50 mV
V
OVA1
OV detection threshold accuracy 3.3 ≤ V
OV_SET
≤ 4.5 –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
(1)
700 3300 mV
ΔV
UVS
UV detection threshold program step 100 mV
V
UVH
UV detection hysteresis 100 mV
V
UVA
UV detection threshold accuracy –100 0 100 mV
V
OTR
OT detection threshold range
(2)
V
REG50
= 5 V 1 2 V
Δ
VOTS
OT detection threshold program step
(2)
See
(3)
V
V
OTA
OT detection threshold accuracy
(2)
T = 40°C to 90°C 0.04 0.05 V
ΔV
OTH
OT reset hysteresis T = 40°C to 90°C 8% 12% 15%
(1) COV and CUV thresholds must be set such that COV – CUV ≥ 300 mV
(2) Using recommended components. Consult Table 1 in text for voltage levels used.
(3) See Table 1 for trip points.
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