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| BQ24314 Datasheet, PDF (2/13 Pages) Texas Instruments – OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC | |||
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bq24314
bq24316
SLUS763 â JULY 2007
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
SIMPLIFIED BLOCK DIAGRAM
IN
ILIM
Charge Pump,
Bandgap,
Bias Generator
ISNS
ILIMREF
ILIMREF - D
ISNS
tBLANK(OCP)
5.85 V (bq24314)
6.80 V (bq24316)
VIN
OFF
COUNTER, CONTROL,
AND STATUS
VUVLO
VIN
tDGL(PGOOD)
THERMAL
SHUTDOWN
tGDL(BOVP)
OUT
FAULT
CE
4.35 V
VBAT
VSS
TERMINAL FUNCTIONS
NAME
IN
TERMINAL
DSJ
1, 2
DSG
1
OUT
VBAT
10, 11
8
8
6
I/O
DESCRIPTION
I Input power, connect to external DC supply. Connect external 1μF capacitor (minimum) to VSS. For
the 12 pin (DSJ-suffix) device, ensure that pins 1 and 2 are connected together on the PCB at the
device.
O Output terminal to the charging system. Connect external 1μF capacitor (minimum) to VSS.
I Battery voltage sense input. Connect to pack positive terminal through a resistor.
2
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Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): bq24314 bq24316
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