Datasheet

TPS65720
TPS65721
SLVS979 –OCTOBER 2009 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
V
SYS
= 3.6V, V
DCDC1
= 2.05V, PFM mode, L = 3.3μH, C
OUTDCDC1
= 4.7μF, V
INLDO1
=2.05V, V
LDO1
=1.85V, T
A
= –40°C to 85°C
typical values apply in a temperature range of 10°C to 35°C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
BATTERY-PACK NTC MONITOR
Thermistor high temperature detection resistance
4.3 5 5.7 kΩ
(equals 45°C for 10k NTC; B=3380)
Thermistor high temperature detection resistance
3.5 4.1 4.8 kΩ
(equals 50°C for 10k NTC; B=3380)
Thermistor high temperature detection resistance
2.9 3.5 4.2 kΩ
(equals 55°C for 10k NTC; B=3380 )
Thermistor high temperature detection resistance
2.4 3 3.5 kΩ
(equals 60°C for 10k NTC; B=3380)
Hot temperature detected and charging suspended when the
RNTC
HOT
resistance of the battery-NTC is lower than RNTC
HOT
Thermistor high temperature detection resistance
43 50 57 kΩ
(equals 45°C for 100k NTC)
Thermistor high temperature detection resistance
35 41 48 kΩ
(equals 50°C for 100k NTC)
Thermistor high temperature detection resistance
29 35 42 kΩ
(equals 55°C for 100k NTC)
Thermistor high temperature detection resistance
24 30 35 kΩ
(equals 60°C for 100k NTC)
Thermistor low temperature detection resistance
25 27 30 kΩ
(equals 0°C for 10k NTC; B=3380)
Thermistor low temperature detection resistance
20 22 24 kΩ
(equals 5°C for 10k NTC; B=3380)
Thermistor low temperature detection resistance
16 18 20 kΩ
(equals 10°C for 10k NTC; B=3380 )
Thermistor low temperature detection resistance
13 15 16 kΩ
(equals 15°C for 10k NTC; B=3380)
Cold temperature detected and charging suspended when the
RNTC
COLD
resistance of the battery-NTC is higher than RNTC
COLD
Thermistor low temperature detection resistance
250 270 300 kΩ
(equals 0°C for 100k NTC)
Thermistor low temperature detection resistance
200 220 240 kΩ
(equals 5°C for 100k NTC)
Thermistor low temperature detection resistance
160 180 200 kΩ
(equals 10°C for 100k NTC)
Thermistor low temperature detection resistance
130 150 160 kΩ
(equals 15°C for 100k NTC)
V
HYS(COLD)
Low temperature trip point hysteresis For 10k NTC; B=3380 5 °C
Thermistor not detected for 10k NTC 260 340 620 kΩ
Hot temperature detected and charging suspended when the
R
NOSENSOR
resistance of the battery-NTC is higher than R
NOSENSOR
Thermistor not detected for 100k NTC 2500 3400 6200 kΩ
t
DGL(TS)
Deglitch time, pack temperature fault detection 50 ms
THERMAL REGULATION
T
J(REG)
Lower Temperature regulation limit 115 °C
T
J(REG)
Upper Temperature regulation limit 135 °C
T
J(OFF)
Thermal shutdown temperature 155 °C
T
J(OFF-HYS)
Thermal shutdown hysteresis 20 °C
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