BQ2962

AKTIV

Überspannungsschutz für 2, 3 und 4 serielle Li-Ion-Zellen

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Datenblatt

document-pdfAcrobat BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply datasheet (Rev. U) (Englisch) PDF | HTML

BQ2962

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Function

Protection

Number of series cells (min)

2, 3, 4

Number of series cells (max)

3, 4

Features

LDO output, Overvoltage, Single pin output drive, Undervoltage

Operating current (typ) (µA)

1

Rating

Catalog

Vin (max) (V)

20

Overvoltage protection

4.35, 4.45, 4.5, 4.55, 4.6

Operating temperature range (°C)

-40 to 110

Battery overvoltage protection (min) (V)

3.85

Battery overvoltage protection (max) (V)

4.6

Function

Protection

Number of series cells (min)

2, 3, 4

Number of series cells (max)

3, 4

Features

LDO output, Overvoltage, Single pin output drive, Undervoltage

Operating current (typ) (µA)

1

Rating

Catalog

Vin (max) (V)

20

Overvoltage protection

4.35, 4.45, 4.5, 4.55, 4.6

Operating temperature range (°C)

-40 to 110

Battery overvoltage protection (min) (V)

3.85

Battery overvoltage protection (max) (V)

4.6

WSON (DSG)

8

4 mm² 2 x 2

2-series, 3-series, and 4-series cell overvoltage protection (OVP)
Fixed delay timer to trigger FET drive output (3-s, 4-s, 5.5-s, or 6.5-s options)
Factory programmed OVP threshold (threshold range 3.85V to 4.6V)
Output options: active high
High-accuracy overvoltage protection: ±10mV
Regulated supply output with self-disable and/or external enable/disable control
- Options: 3.3V, 2.5V, and 1.8V (BQ2961)
- Options: 3.3V, 3.15V, 3.0V (BQ2962)
Low power consumption ICC ~ 4µA (VCELL(ALL) < VPROTECT)
Extra low power consumption with reg output disabled, ICC ~ 1.2µA
Low leakage current per cell input < 100nA
Small package footprint
- 8-Pin WSON (2mm × 2mm)

2-series, 3-series, and 4-series cell overvoltage protection (OVP)
Fixed delay timer to trigger FET drive output (3-s, 4-s, 5.5-s, or 6.5-s options)
Factory programmed OVP threshold (threshold range 3.85V to 4.6V)
Output options: active high
High-accuracy overvoltage protection: ±10mV
Regulated supply output with self-disable and/or external enable/disable control
- Options: 3.3V, 2.5V, and 1.8V (BQ2961)
- Options: 3.3V, 3.15V, 3.0V (BQ2962)
Low power consumption ICC ~ 4µA (VCELL(ALL) < VPROTECT)
Extra low power consumption with reg output disabled, ICC ~ 1.2µA
Low leakage current per cell input < 100nA
Small package footprint
- 8-Pin WSON (2mm × 2mm)

The BQ296xxx family is a high-accuracy, low-power overvoltage protector with a 2mA regulated output supply for Li-ion battery pack applications.

Each cell in a 2-series to 4-series cell stack is individually monitored for an overvoltage condition. An internally fixed-delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, an output pin is triggered into an active state to indicate that an overvoltage condition has occurred.

The regulated output supply delivers up to 2mA (max) output current to drive always-on circuits, such as a real-time clock (RTC) oscillator. The BQ296xxx family has a self-disable function to turn off the regulated output if any cell voltage falls below a certain threshold, thereby preventing drain on the battery, and provides an external control to enable or disable the regulated output.

The BQ296xxx family is a high-accuracy, low-power overvoltage protector with a 2mA regulated output supply for Li-ion battery pack applications.

Each cell in a 2-series to 4-series cell stack is individually monitored for an overvoltage condition. An internally fixed-delay timer is initiated upon detection of an overvoltage condition on any cell. Upon expiration of the delay timer, an output pin is triggered into an active state to indicate that an overvoltage condition has occurred.

The regulated output supply delivers up to 2mA (max) output current to drive always-on circuits, such as a real-time clock (RTC) oscillator. The BQ296xxx family has a self-disable function to turn off the regulated output if any cell voltage falls below a certain threshold, thereby preventing drain on the battery, and provides an external control to enable or disable the regulated output.

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	Typ	Titel		Datum
*	Data sheet	BQ296xxx Overvoltage Protection for 2-Series, 3-Series, and 4-Series Cell Li-Ion Batteries with Regulated Output Supply datasheet (Rev. U)	PDF \| HTML	02 Okt 2024

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BQ40Z50EVM-561 — Li-Ion-Akkupack-Manager der Serien 1, 2, 3 und 4 – Evaluierungsmodul

BQ40z50EVM is a complete system useful for evaluating the functionality of the bq40z50 fuel gauge. As described on the BQ40z50 product folder, this gauge is appropriate for applications powered by multi-cell battery systems. The EVM includes one bq40z50 circuit module, a current sense resistor, and (...)

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Überspannungsschutz für 2, 3 und 4 serielle Li-Ion-Zellen

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