BQ29401

Name: BQ29401
Brand: TI
SKU: BQ29401
Price: 1.096 USD

AKTIV

Spannungsschutz für Lion-Batterien mit 2, 3 oder 4 Zellen (zweiter Schutz)

Jetzt bestellen

Datenblatt

document-pdfAcrobat Voltage Protection for 2-,3-or,4-Cell Lion Batteries datasheet (Rev. C) (Englisch)

BQ29401

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Function

Protection

Number of series cells (min)

2

Number of series cells (max)

4

Operating current (typ) (µA)

2

Rating

Catalog

Vin (max) (V)

25

Overvoltage protection

4.45

Operating temperature range (°C)

-20 to 85

Function

Protection

Number of series cells (min)

2

Number of series cells (max)

4

Operating current (typ) (µA)

2

Rating

Catalog

Vin (max) (V)

25

Overvoltage protection

4.45

Operating temperature range (°C)

-20 to 85

TSSOP (PW)

8

19.2 mm² 3 x 6.4

2-, 3-, or 4-Cell Secondary Protection
Low Power Consumption I_CC < 2 µA [VCELL_(ALL) <V_(PROTECT)]
High Accuracy Over Sense Voltage:
- bq29400: 4.35 V ±25 mV
- bq29400A: 4.40 V ±25 mV
- bq29401: 4.45 V ±25 mV
- bq29405: 4.65 V ±25 mV
Prefixed Protection Threshold Voltage
Programmable Delay Time
High Power Supply Ripple Rejection
Stable During Pulse Charge Operation
APPLICATIONS
- 2^nd Level Protection in Lion Battery Packs in
  - Notebook PCs
  - Portable Instrumentation
  - Medical and Test Equipment

2-, 3-, or 4-Cell Secondary Protection
Low Power Consumption I_CC < 2 µA [VCELL_(ALL) <V_(PROTECT)]
High Accuracy Over Sense Voltage:
- bq29400: 4.35 V ±25 mV
- bq29400A: 4.40 V ±25 mV
- bq29401: 4.45 V ±25 mV
- bq29405: 4.65 V ±25 mV
Prefixed Protection Threshold Voltage
Programmable Delay Time
High Power Supply Ripple Rejection
Stable During Pulse Charge Operation
APPLICATIONS
- 2^nd Level Protection in Lion Battery Packs in
  - Notebook PCs
  - Portable Instrumentation
  - Medical and Test Equipment

The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time.

Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.

The bq29400, bq29400A, bq29401, and bq29405 are BiCMOS secondary protection ICs for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. They include a programmable delay circuit for over voltage detection time.

Each cell in a multiple cell pack is compared to an internal reference voltage. If one cell reaches an overvoltage condition, the protection sequence begins. The bq2940x device starts charging an external capacitor through the CD pin. When the CD pin voltage reaches 1.2 V, the OUT pin changes from a low level to a high level.

filter

Andere Akkuschutz suchen

Herunterladen

Technische Dokumentation

star

=Von TI ausgewählte Top-Empfehlungen für dieses Produkt

Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.

Alle anzeigen 1

	Typ	Titel		Datum
*	Data sheet	Voltage Protection for 2-,3-or,4-Cell Lion Batteries datasheet (Rev. C)		26 Sep 2005

BQ29401

Spannungsschutz für Lion-Batterien mit 2, 3 oder 4 Zellen (zweiter Schutz)

BQ29401

Produktdetails

Ähnliche Produkte, die für Sie interessant sein könnten

Selbe Funktionalität wie der verglichene Baustein bei abweichender Anschlussbelegung

Technische Dokumentation

Bestellen & Qualität

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren