BQ24171 Datasheet, PDF (9/35 Pages) Texas Instruments – JEITA Compliant Stand-Alone Switch-Mode Li-Ion and Li-Polymer Battery Charger with Integrated MOSFETs and Power Path Selector

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SLUSAF2A – FEBRUARY 2011 – REVISED MAY 2011
ELECTRICAL CHARACTERISTICS (continued)
4.5V ≤ V(PVCC, AVCC) ≤ 17V, –40°C < T_J + 125°C, typical values are at T_A = 25°C, with respect to AGND (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
INPUT OVER-VOLTAGE COMPARATOR (ACOV)
V_ACOV
AC Over-Voltage Rising Threshold to turn
off ACFET
OVPSET rising
V_{ACOV_HYS}
t_{ACOV_RISE_DEG}
AC over-voltage falling hysteresis
AC Over-Voltage Rising Deglitch to turn off
ACFET and Disable Charge
OVPSET falling
OVPSET rising
t_{ACOV_FALL_DEG}
AC Over-Voltage Falling Deglitch to Turn on
ACFET
OVPSET falling
INPUT UNDER-VOLTAGE COMPARATOR (ACUV)
V_ACUV
AC Under-Voltage Falling Threshold to turn
off ACFET
OVPSET falling
V_{ACUV_HYS}
t_{ACOV_FALL_DEG}
AC Under-Voltage Rising Hysteresis
AC Under-Voltage Falling Deglitch to turn
off ACFET and Disable Charge
OVPSET rising
OVPSET falling
t_{ACOV_RISE_DEG}
AC Under-Voltage Rising Deglitch to turn on
ACFET
OVPSET rising
THERMAL REGULATION
T_{J_REG}
Junction Temperature Regulation Accuracy ISET > 120mV, Charging
THERMAL SHUTDOWN COMPARATOR
T_SHUT
Thermal shutdown rising temperature
T_{SHUT_HYS}
Thermal shutdown hysteresis
t_{SHUT_RISE_DEG}
Thermal shutdown rising deglitch
t_{SHUT_FALL_DEG}
Thermal shutdown falling deglitch
THERMISTOR COMPARATOR
Temperature rising
Temperature falling
Temperature rising
Temperature falling
V_T1
T1 (0 °C) threshold, Charge suspended
below this temperature.
V_TS rising, As Percentage to V_VREF
V_T1-HYS
Charge back to I_CHARGE/2 and V_FB=2.1 V
above this temperature.
Hysteresis, V_TS falling
T2 (10 °C) threshold, Charge back to
V_T2
I_CHARGE/2 and V_FB=2.1 V below this
V_TS rising, As Percentage to V_VREF
temperature.
V_T2-HYS
Charge back to I_CHARGE and V_FB=2.1 V
above this temperature.
Hysteresis, V_TS falling
T3 (45 °C) threshold, Charge back to
V_T3
I_CHARGE and V_FB=2.05 V above this
V_TS falling, As Percentage to V_VREF
temperature.
V_T3-HYS
Charge back to I_CHARGE and V_FB=2.1 V
below this temperature.
Hysteresis, V_TS rising
T4 (50 °C) threshold, Charge back to
V_T4
I_CHARGE and V_FB=2.025 V above this
V_TS falling, As Percentage to V_VREF
temperature.
V_T4-HYS
Charge back to I_CHARGE and V_FB=2.05 V
below this temperature.
Hysteresis, V_TS rising
V_T5
T5 (60 °C) threshold, Charge suspended
above this temperature.
V_TS falling, As Percentage to V_VREF
V_T5-HYS
Charge back to I_CHARGE and V_FB=2.025 V
below this temperature.
Hysteresis, V_TS rising
Deglitch time for Temperature Out of Valid
Charge Range Detection
V_TS < V_T5 or V_TS > V_T1
Deglitch time for Temperature In Valid
Range Detection
V_TS > V_T5 + V_{T5_HYS} or V_TS < V_T1 - V_{T1_HYS}
Deglitch time for Temperature Detection
above/below T2, T3, T4 threshold
Charge Current when V_TS between V_T1 and
V_T2 range
MIN
TYP MAX UNITS
1.57
1.6 1.63
V
50
mV
1
µs
30
ms
0.487
0.497 0.507
V
100
mV
1
µs
30
ms
120
°C
150
°C
20
°C
100
µs
10
ms
70.2% 70.8% 71.4%
0.6%
68.0% 68.6% 69.2%
0.8%
55.5% 56.1% 56.7%
0.8%
53.2% 53.7% 54.2%
0.8%
47.6% 48.1% 48.6%
1.2%
400
ms
20
25
ms
I_CHARGE/
2
Copyright © 2011, Texas Instruments Incorporated
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