BQ24314DSGR ,Charger front end protection IC with 30V max vin and 5.85V OVP 8-WSON -40 to 85Block Diagram..... 9Information..... 207.3 Feature Description.... 104 Revision HistoryNOTE: Page n ..
BQ24314DSGRG4 ,Charger front end protection IC with 30V max vin and 5.85V OVP 8-WSON -40 to 85 SLUS763D–JULY 2007–REVISED APRIL 20165 Pin Configuration and FunctionsDSG PackageDSJ Package8-Pin ..
BQ24314DSJR ,Charger front end protection IC with 30V max vin and 5.85V OVP 12-VSON -40 to 85Maximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNITIN ..
BQ24314DSJT ,Charger front end protection IC with 30V max vin and 5.85V OVP 12-VSON -40 to 85Features 3 DescriptionThe bq24314 and bq24316 devices are highly1• Provides Protection for Three Va ..
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BQ24314DSGR-BQ24314DSGRG4-BQ24314DSJR-BQ24314DSJT
Charger front end protection IC with 30V max vin and 5.85V OVP
ACAdapter
VDC
GNDFm 7
bq24316DSGbq24080
Charger IC
SYSTEM OUT
VBAT
FAULT
VSS ILIMFm
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bq24314, bq24316SLUS763D –JULY 2007–REVISED APRIL 2016
bq2431x Overvoltage and Overcurrent Protection IC and
Li+ Charger Front-End Protection IC Features Provides Protection for Three Variables: Input Overvoltage, With Rapid Responsein1μs User-Programmable Overcurrent With Current
Limiting Battery Overvoltage 30-V Maximum Input Voltage Supportsupto 1.5-A Input Current Robust Against False Triggering Dueto Current
Transients Thermal Shutdown Enable Input Status Indication– Fault Condition Availablein Space-Saving Small 8-Pin2×2 SON
and 12-Pin4×3 SON Packages
Applications Mobile Phones and Smart Phones PDAs MP3 Players Low-Power Handheld Devices Bluetooth™ Headsets
DescriptionThe bq24314 and bq24316 devices are highly
integrated circuits designedto provide protectionto
Li-ion batteries from failuresof the charging circuit.
The IC continuously monitors the input voltage, the
input current, and the battery voltage.In caseof an
input overvoltage condition, the IC immediately
removes power from the charging circuit by turning
off an internal switch.In the caseof an overcurrent
condition,it limits the system currentat the threshold
value, andif the overcurrent persists, switches the
pass element OFF after a blanking period.
Additionally, the IC also monitors its own die
temperature and switches offifit becomes too hot.
The input overcurrent threshold is user-
programmable.
The IC can be controlled bya processor and also
provides status information about fault conditionsto
the host.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Application Schematic
