 English |
|
|
|
|
|
|
|
| BQ24721 Datasheet, PDF (6/48 Pages) Texas Instruments – ADVANCED MULTI-CHEMISTRY AND MULTI-CELL SYNCHRONOUS SWITCH-MODE CHARGER AND SYSTEM POWER SELECTOR | |||
| |||
| ◁ |
bq24721
SLUS683 â NOVEMBER 2005
ELECTRICAL CHARACTERISTICS (continued)
8 Vdc ⤠V(VCC) ⤠24 Vdc, 0°C ⤠TJ ⤠125°C, all voltages with respect to AGND (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
THERMISTOR COMPARATORS, TS
V(LTF)
Cold temperature threshold,
TS pin voltage
V(TS) rising
72.8 73.5
V(LTFH)
V(TCO)
Hysteresis for LTF threshold
Cutoff temperature threshold,
TS pin voltage
V(TS) falling
V(TS) rising
0.5
1
28.7 29.3
V(HTF)
Hot temperature threshold, TS
pin voltage
V(TS) rising/falling
33.7 34.4
V(TSDET)
Pack thermistor insertion
detected
VT(S) rising/falling
82.45
85
Deglitch time for temperature V(TS) rising above V(LTF), or V(TS) falling below V(TCO) , or V(TS)
out of range detection
falling below V(HTF)
16
Deglitch time for temperature V(TS) falling below (V(LTF) - V(LTFH)), or V(TS) rising above V(TCO) , or
in valid range detection
V(TS) rising above V(HTF)
8
Deglitch time for thermistor
removal detection
V(TS) rising above V(TSDET)
V(TS) > V(TSDET) (pack removed)
16
Deglitch time for thermistor
insertion detection
V(TS) falling below V(TSDET)
V(TS) < V(TSDET) (pack inserted)
1
CHARGE OVERCURRENT COMPARATOR
V(OLP)
Overcurrent protection
threshold
V(SRP-SRN) rising
200
V(OLPH)
Hysteresis
V(SRP-SRN) falling
20
www.ti.com
MAX UNIT
74.2 %VREF5
1.5 %VREF5
29.9 %VREF5
35.1 %VREF5
87.55 %VREF5
µs
ms
µs
s
%I(REG_CHG)
%I(REG_CHG)
6
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese