High-side FET drive, Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Undervoltage

Operating current (typ) (µA)

5

Rating

Catalog

Vin (max) (V)

5.5

Overvoltage protection

4.25, 4.3, 4.44

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

3.75

Battery overvoltage protection (max) (V)

5.2

Function

Protection

Number of series cells (min)

1

Number of series cells (max)

1

Features

High-side FET drive, Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Undervoltage

Operating current (typ) (µA)

5

Rating

Catalog

Vin (max) (V)

5.5

Overvoltage protection

4.25, 4.3, 4.44

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

3.75

Battery overvoltage protection (max) (V)

5.2

X2QFN (RUG)

8

2.25 mm² 1.5 x 1.5

Voltage protection:
- Overvoltage (OV): ±10mV
- Undervoltage (UV): ±20mV
Current protection:
- Overcurrent in charge (OCC): ±1mV
- Overcurrent in discharge (OCD): ±1mV
- Short circuit in discharge (SCD): ±5mV
Temperature protection:
- Overtemperature (OT)
Additional features:
- Supports as low as a 1mΩ sense resistor (RSNS)
- High-side protection
- High Vgs FET drive
- 0-V charging (only BQ2980)
- CTR pin for FET override control for system reset/shutdown
- Configure CTR for second OT protection through an external PTC thermistor
Current consumption:
- NORMAL mode: 4µA
- SHUTDOWN mode: 0.1µA maximum
Package:
- 8pin X2QFN: 1.50 × 1.50 × 0.37mm

Voltage protection:
- Overvoltage (OV): ±10mV
- Undervoltage (UV): ±20mV
Current protection:
- Overcurrent in charge (OCC): ±1mV
- Overcurrent in discharge (OCD): ±1mV
- Short circuit in discharge (SCD): ±5mV
Temperature protection:
- Overtemperature (OT)
Additional features:
- Supports as low as a 1mΩ sense resistor (RSNS)
- High-side protection
- High Vgs FET drive
- 0-V charging (only BQ2980)
- CTR pin for FET override control for system reset/shutdown
- Configure CTR for second OT protection through an external PTC thermistor
Current consumption:
- NORMAL mode: 4µA
- SHUTDOWN mode: 0.1µA maximum
Package:
- 8pin X2QFN: 1.50 × 1.50 × 0.37mm

The BQ298xyz family of devices, featuring integrated charge-pump FET drivers, provides high-side primary battery cell protection for 1-series Li-ion and Li-polymer batteries, enabling consistent Rdson across cell voltages. For better system thermal performance, the BQ298x device’s accuracy enables the use of a sense resistor as low as 1mΩ.

The CTR pin in the BQ298x device can be configured to override the FET driver by host control to create a system reset or shutdown function. Alternatively, the CTR pin can be configured to connect an external Positive Temperature Coefficient (PTC) thermistor for FET OT protection in addition to the internal die temperature sensor. The BQ2980xy devices support zero-volt (0V) charging, while the BQ2982xy devices have this disabled.

The BQ298xyz family of devices, featuring integrated charge-pump FET drivers, provides high-side primary battery cell protection for 1-series Li-ion and Li-polymer batteries, enabling consistent Rdson across cell voltages. For better system thermal performance, the BQ298x device’s accuracy enables the use of a sense resistor as low as 1mΩ.

The CTR pin in the BQ298x device can be configured to override the FET driver by host control to create a system reset or shutdown function. Alternatively, the CTR pin can be configured to connect an external Positive Temperature Coefficient (PTC) thermistor for FET OT protection in addition to the internal die temperature sensor. The BQ2980xy devices support zero-volt (0V) charging, while the BQ2982xy devices have this disabled.

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Alle anzeigen 2

	Typ	Titel		Datum
*	Data sheet	BQ298xyz Voltage, Current, Temperature Protectors with an Integrated High-Side NFET Driver for Fast/Flash Charging Single-Cell Li-Ion and Li-Polymer Batteries datasheet (Rev. K)	PDF \| HTML	18 Jul 2024
	EVM User's guide	BQ2980EVM-883 Evaluation Module for BQ2980 High-Side Driver		11 Mai 2017

Design und Entwicklung

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Evaluierungsplatine

BQ2980EVM-883 — bq2980 Einzelzellen-Highside-Schutz – Evaluierungsmodul

The BQ2980EVM-883 evaluation module (EVM) is to evaluate the BQ2980 family of high-side protectors. The BQ2980EVM-883 demonstrates the performance of the BQ2980 family in fast charging and high current application as high as 8 A of continuous current. The BQ2980EVM-883 is ideal for evaluation in (...)

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X2QFN (RUG)	8	Ultra Librarian

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BQ2982

High-Side-Schutz für einzellige Li-Ionen- und Li-Polymer-Akkus mit 0-V-Laden deaktiviert

BQ2982

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BQ2980EVM-883 — bq2980 Einzelzellen-Highside-Schutz – Evaluierungsmodul

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