Datasheet

bq24610
bq24617
SLUS892B –DECEMBER 2009–REVISED SEPTEMBER 2013 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
5 V ≤ V
VCC
≤ 28 V, 0°C < T
J
< 125°C, typical values are at T
A
= 25°C, with respect to GND (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
BAT OVERVOLTAGE COMPARATOR
V
OV_RISE
Overvoltage rising threshold As percentage of V
FB
104%
V
OV_FALL
Overvoltage falling threshold As percentage of V
FB
102%
INPUT OVERVOLTAGE COMPARATOR (ACOV)
AC overvoltage rising threshold on VCC
V
ACOV
31.04 32 32.96 V
(bq24610)
AC overvoltage falling hysteresis
V
ACOV_HYS
1 V
(bq24610)
AC overvoltage rising threshold on VCC
V
ACOV
25.22 26 26.78 V
(bq24617)
AC overvoltage falling
V
ACOV_HYS
820 mV
hysteresis(bq24617)
AC overvoltage deglitch (both edge) Delay to changing the STAT pins 1 ms
AC overvoltage rising deglitch Delay to disable charge 1 ms
AC overvoltage falling deglitch Delay to resume charge 20 ms
THERMAL SHUTDOWN COMPARATOR
T
SHUT
Thermal shutdown rising temperature Temperature increasing 145 °C
T
SHUT_HYS
Thermal shutdown hysteresis 15 °C
Thermal shutdown rising deglitch Temperature increasing 100 μs
Thermal shutdown falling deglitch Temperature decreasing 10 ms
THERMISTOR COMPARATOR
V
LTF
Cold temperature rising threshold As Percentage to V
VREF
72.5% 73.5% 74.5%
V
LTF_HYS
Rising hysteresis As Percentage to V
VREF
0.2% 0.4% 0.6%
V
HTF
Hot temperature rising threshold As Percentage to V
VREF
36.2% 37% 37.8%
V
TCO
Cut-off temperature rising threshold As Percentage to V
VREF
33.7% 34.4% 35.1%
Deglitch time for temperature out-of-
V
TS
> V
LTF
, or V
TS
< V
TCO
, or V
TS
< V
HTF
400 ms
range detection
Deglitch time for temperature in-valid-
V
TS
< V
LTF
– V
LTF_HYS
or V
TS
>V
TCO
, or V
TS
> V
HTF
20 ms
range detection
CHARGE OVERCURRENT COMPARATOR (CYCLE-BY-CYCLE)
Current rising, in non-synchronous mode, mesure on
45.5 mV
V
(SRP-SRN)
, V
SRP
< 2 V
Charge overcurrent falling threshold
Current rising, as percentage of V
(IREG_CHG)
, in
160%
synchronous mode, V
SRP
> 2.2 V
V
OC
Minimum OCP threshold in synchronous mode,
Charge overcurrent threshold floor 50 mV
measure on V
(SRP-SRN)
, V
SRP
> 2.2 V
Maximum OCP threshold in synchronous mode,
Charge overcurrent threshold ceiling 180 mV
measure on V
(SRP-SRN)
, V
SRP
> 2.2 V
CHARGE UNDERCURRENT COMPARATOR (CYCLE-BY-CYCLE)
V
ISYNSET
Charge undercurrent falling threshold Switch from SYNCH to NON-SYNCH, V
SRP
> 2.2V 1 5 9 mV
BATTERY SHORTED COMPARATOR (BATSHORT)
BAT short falling threshold, forced non-
V
BATSHT
V
SRP
falling 2 V
syn mode
V
BATSHT_HYS
BAT short rising hysteresis 200 mV
V
BATSHT_DEG
Deglitch on both edge 1 μs
LOW CHARGE CURRENT COMPARATOR
Low charge current (average) falling
V
LC
threshold to force into non-synchronous Measure on V
(SRP-SRN)
1.25 mV
mode
V
LC_HYS
Low charge current rising hysteresis 1.25 mV
V
LC_DEG
Deglitch on both edge 1 μs
VREF REGULATOR
V
VREF_REG
VREF regulator voltage V
VCC
> V
UVLO
, (0–35-mA load) 3.267 3.3 3.333 V
I
VREF_LIM
VREF current limit V
VREF
= 0 V, V
VCC
> V
UVLO
35 mA
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