BQ24314

AKTIV

Frontend-Schutz-IC für Ladegeräte mit max. 30 V Vin und 5,85 V Überstromschutz

Jetzt bestellen

Datenblatt

document-pdfAcrobat bq2431x Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC datasheet (Rev. D) (Englisch) PDF | HTML

Eine neuere Version dieses Produkts ist verfügbar

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Alternativen vergleichen

Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität

BQ24314C

AKTIV

Überspannungs- & Überstromschutz-IC & Li+-Schutz-IC für Lader-Frontend Newer version of the device with improved reverse current protection

BQ24314

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Function

Charger Front-End Protection

Number of series cells (min)

1

Number of series cells (max)

1

Features

Overcurrent protection, Overvoltage

Operating current (typ) (µA)

400

Rating

Catalog

Vin (max) (V)

30

Overvoltage protection

5.85

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

4.35

Battery overvoltage protection (max) (V)

4.35

Function

Charger Front-End Protection

Number of series cells (min)

1

Number of series cells (max)

1

Features

Overcurrent protection, Overvoltage

Operating current (typ) (µA)

400

Rating

Catalog

Vin (max) (V)

30

Overvoltage protection

5.85

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

4.35

Battery overvoltage protection (max) (V)

4.35

WSON (DSG)

8

4 mm² 2 x 2

Provides Protection for Three Variables:
- Input Overvoltage, With Rapid Response in
  < 1 µs
- User-Programmable Overcurrent With Current
  Limiting
- Battery Overvoltage
30-V Maximum Input Voltage
Supports up to 1.5-A Input Current
Robust Against False Triggering Due to Current
Transients
Thermal Shutdown
Enable Input
Status Indication – Fault Condition
Available in Space-Saving Small 8-Pin 2 × 2 SON
and 12-Pin 4 × 3 SON Packages

Provides Protection for Three Variables:
- Input Overvoltage, With Rapid Response in
  < 1 µs
- User-Programmable Overcurrent With Current
  Limiting
- Battery Overvoltage
30-V Maximum Input Voltage
Supports up to 1.5-A Input Current
Robust Against False Triggering Due to Current
Transients
Thermal Shutdown
Enable Input
Status Indication – Fault Condition
Available in Space-Saving Small 8-Pin 2 × 2 SON
and 12-Pin 4 × 3 SON Packages

The bq24314 and bq24316 devices are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it becomes too hot. The input overcurrent threshold is user-programmable.

The IC can be controlled by a processor and also provides status information about fault conditions to the host.

The bq24314 and bq24316 devices are highly integrated circuits designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage, the input current, and the battery voltage. In case of an input overvoltage condition, the IC immediately removes power from the charging circuit by turning off an internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. Additionally, the IC also monitors its own die temperature and switches off if it becomes too hot. The input overcurrent threshold is user-programmable.

The IC can be controlled by a processor and also provides status information about fault conditions to the host.

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Alle anzeigen 6

	Typ	Titel		Datum
*	Data sheet	bq2431x Overvoltage and Overcurrent Protection IC and Li+ Charger Front-End Protection IC datasheet (Rev. D)	PDF \| HTML	29 Apr 2016
	EVM User's guide	bq2430x/1x DSG EVM (HPA245) for Li+ Charger Front End Protection IC (Rev. B)		04 Nov 2016
	Analog Design Journal	Battery-charger front-end IC improves charging-system safety		16 Mai 2008
	Application note	How to Meet 24V Hot Plug-In Test for Charge Front-End bq243xx		02 Jan 2008
	Application note	High Voltage Pulse Transient Safety Design fro bq243xx		04 Dez 2007
	EVM User's guide	bq24314/6 DSJ EVM (HPA251) for Li+ Charger Front End Protection IC		20 Aug 2007

Design und Entwicklung

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
WSON (DSG)	8	Ultra Librarian

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BQ24314

Frontend-Schutz-IC für Ladegeräte mit max. 30 V Vin und 5,85 V Überstromschutz

Eine neuere Version dieses Produkts ist verfügbar

Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität

BQ24314

Produktdetails

Technische Dokumentation

Design und Entwicklung

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