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| BQ24314 Datasheet, PDF (5/13 Pages) Texas Instruments – OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC | |||
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www.ti.com
bq24314
bq24316
SLUS763 â JULY 2007
ELECTRICAL CHARACTERISTICS (continued)
over junction temperature range 0°C ⤠TJ ⤠125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
BVOVP
Battery overvoltage protection
threshold
CE = Low, VIN > 4.3V
4.30 4.35
VHYS-BOVP
Hysteresis on BVOVP
CE = Low, VIN > 4.3V
270
IVBAT
Input bias current on VBAT pin
TDGL(BOVP)
Deglitch time, battery overvoltage CE = Low, VIN > 4.3V
detected
176
THERMAL PROTECTION
TJ(OFF)
Thermal shutdown temperature
140
TJ(OFF-HYS)
Thermal shutdown hysteresis
20
LOGIC LEVELS ON CE
VIL
Low-level input voltage
0
VIH
High-level input voltage
1.4
IIL
Low-level input current
VCE = 0V
IIH
High-level input current
VCE = 1.8V
LOGIC LEVELS ON FAULT
VOL
Output low voltage
ISINK = 5mA
MAX UNIT
4.4 V
mV
20 nA
μs
150 °C
°C
0.4 V
V
1 μA
10 μA
0.4 V
TYPICAL OPERATING PERFORMANCE
For Figure 1 through Figure 4, VIN = 5 V to 12 V, COUT = 0.47 μF, ROUT = 33 â¦, RILIM = 25 kâ¦, Channel 1 = VIN,
Channel 2 = VOUT, Channel 4 = FAULT
Ch 1 = VIN
VIN = 5 V to 12 V,
COUT = 0.47 mF,
ROUT = 33 W,
RILIM = 25 kW
Ch 1 = VIN
Ch 2 = VOUT
VIN = 5 V to 12 V,
COUT = 0.47 mF,
ROUT = 33 W,
RILIM = 25 kW
Ch 4 = FAULT
Ch 2 = VOUT
Ch 4 = FAULT
Figure 1. bq24314 OVP Response for Input Step, tR = 1 μs
Figure 2. bq24314 OVP Response for Input Step, tR = 20
μs
Copyright © 2007, Texas Instruments Incorporated
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Product Folder Link(s): bq24314 bq24316
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