BQ24171_15 Datasheet, PDF (9/39 Pages) Texas Instruments – bq24171 JEITA-Compliant Stand-Alone, Switched-Mode Li-Ion and Li-Polymer Battery Charger With Integrated MOSFETs and Power Path Selector

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bq24171
SLUSAF2C – FEBRUARY 2011 – REVISED APRIL 2015
Electrical Characteristics (continued)
4.5 V ≤ V(PVCC, AVCC) ≤ 17 V, –40°C < T_J + 125°C, typical values are at T_A = 25°C, with respect to AGND (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
INPUT OVERVOLTAGE COMPARATOR (ACOV)
V_ACOV
AC Overvoltage Rising Threshold to turn off
ACFET
OVPSET rising
1.57
1.6 1.63
V_{ACOV_HYS}
AC overvoltage falling hysteresis
OVPSET falling
50
t_{ACOV_RISE_DEG}
AC Overvoltage Rising Deglitch to turn off
ACFET and Disable Charge
OVPSET rising
1
t_{ACOV_FALL_DEG}
AC Overvoltage Falling Deglitch to turn on
ACFET
OVPSET falling
30
INPUT UNDERVOLTAGE COMPARATOR (ACUV)
V_ACUV
AC Undervoltage Falling Threshold to turn
off ACFET
OVPSET falling
0.487 0.497 0.507
V_{ACUV_HYS}
AC Undervoltage Rising Hysteresis
OVPSET rising
100
t_{ACOV_FALL_DEG}
AC Undervoltage Falling Deglitch to turn off
ACFET and Disable Charge
OVPSET falling
1
t_{ACOV_RISE_DEG}
AC Undervoltage Rising Deglitch to turn on
ACFET
OVPSET rising
30
THERMAL REGULATION
T_{J_REG}
Junction Temperature Regulation Accuracy ISET > 120 mV, Charging
120
THERMAL SHUTDOWN COMPARATOR
T_SHUT
Thermal shutdown rising temperature
Temperature rising
150
T_{SHUT_HYS}
Thermal shutdown hysteresis
Temperature falling
20
t_{SHUT_RISE_DEG}
Thermal shutdown rising deglitch
Temperature rising
100
t_{SHUT_FALL_DEG}
Thermal shutdown falling deglitch
Temperature falling
10
THERMISTOR COMPARATOR
V_T1
T1 (0 °C) threshold, Charge suspended
below this temperature.
V_TS rising, As Percentage to V_VREF
70.2% 70.8% 71.4%
V_T1-HYS
Charge back to I_CHARGE / 2 and V_FB = 2.1 V
above this temperature.
Hysteresis, V_TS falling
0.6%
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
68.0% 68.6% 69.2%
temperature.
V_T2-HYS
Charge back to I_CHARGE and V_FB = 2.1 V
above this temperature.
Hysteresis, V_TS falling
0.8%
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
55.5% 56.1% 56.7%
temperature.
V_T3-HYS
Charge back to I_CHARGE and V_FB = 2.1 V
below this temperature.
Hysteresis, V_TS rising
0.8%
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
53.2% 53.7% 54.2%
temperature.
V_T4-HYS
Charge back to I_CHARGE and V_FB = 2.05 V
below this temperature.
Hysteresis, V_TS rising
0.8%
V_T5
T5 (60 °C) threshold, Charge suspended
above this temperature.
V_TS falling, As Percentage to V_VREF
47.6% 48.1% 48.6%
V_T5-HYS
Charge back to I_CHARGE and V_FB = 2.025 V
below this temperature.
Hysteresis, V_TS rising
1.2%
Deglitch time for Temperature Out of Valid
Charge Range Detection
V_TS < V_T5 or V_TS > V_T1
400
Deglitch time for Temperature In Valid
Range Detection
V_TS > V_T5 + V_{T5_HYS} or V_TS < V_T1 - V_{T1_HYS}
20
Deglitch time for Temperature Detection
above/below T2, T3, T4 threshold
25
Charge Current when V_TS between V_T1 and
V_T2 range
I_CHARGE/
2
UNIT
V
mV
µs
ms
V
mV
µs
ms
°C
°C
°C
µs
ms
ms
ms
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