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| BQ24314 Datasheet, PDF (7/13 Pages) Texas Instruments – OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC | |||
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www.ti.com
TYPICAL OPERATING PERFORMANCE (continued)
Ch 1 = Load Switch
VIN = 4.75 V,
ROUT = 11 W to 8 W,
RILIM = 50 kW
bq24314
bq24316
SLUS763 â JULY 2007
Ch 3 = IIN
Figure 7. bq24316 OCP Response
Channel 1 = Load Switch, Channel 3 = IIN, VIN = 4.75V,
RILIM = 50kâ¦, ROUT = 11⦠to 8â¦
TYPICAL APPLICATION CIRCUIT
(Terminal numbers shown are for the 2Ã2 DSG package)
AC Adapter
VDC
CIN
GND
1 IN
OUT 8
bq24316DSG
COUT
Charging
Circuit
VBAT 6
RBAT
FAULT 4
CE 5
7
2
VPU
RPU
RFAULT
RCE
SYSTEM
Host
Controller
Figure 8. Simple Protection
DETAILED FUNCTIONAL DESCRIPTION
POWER DOWN
The device remains in power down mode when the input voltage at the IN pin is below the undervoltage
threshold VUVLO. The FET Q1 connected between IN and OUT pins is off, and the status output, FAULT, is set to
Hi-Z.
Copyright © 2007, Texas Instruments Incorporated
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Product Folder Link(s): bq24314 bq24316
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