BQ7791506PWR
Battery Management 3-series to 5-series stackable ultra-low-power primary protector with autonomous cell balancing 24-TSSOP -40 to 85
Inventory:9,754
- 90-day after-sales guarantee
- 365 Days Quality Guarantee
- Genuine Product Guarantee
- 7*24 hours service quarantee
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Part Number : BQ7791506PWR
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Package/Case : TSSOP-24
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Brands : TI
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Components Categories : Battery protectors
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Datesheet : BQ7791506PWR DataSheet (PDF)
Overview of BQ7791506PWR
The BQ77915 device is a low-power battery pack protector that implements a suite of voltage, current, and temperature protections and a smart cell balancing algorithm without microcontroller (MCU) control. The devices stackable interface provides simple scaling to support battery cell applications from 3 series to 20 series or more. Protection thresholds and delays are factory-programmed and available in a variety of configurations. Separate overtemperature and undertemperature thresholds for discharge (OTD and UTD) and charge (OTC and UTC) provide additional flexibility.
Key Features
- Ultra-low quiescent current: 8 µA typ. (NORMAL mode), 2 µA (HIBERNATE mode)
- Full suite of voltage, current, and temperature protections
- Smart passive cell balancing removes cell-to-cell imbalance
- Scalable cell count from 3 series to 20 series or more
- Voltage protection (accuracy ±10 mV for OV, ±18 mV for UV)
- Overvoltage: 3 V to 4.575 V
- Undervoltage: 1.2 V to 3 V
- Open cell and open-wire detection (OW)
- Current protection
- Overcurrent discharge 1: –10 mV to –85 mV
- Overcurrent discharge 2: –20 mV to –170 mV
- Short-circuit discharge: –40 mV to –340 mV
- Temperature protection
- Overtemperature charge: 45°C or 50°C
- Overtemperature discharge: 65°C or 70°C
- Additional features:
- Independent charge (CHG) and discharge (DSG) FET drivers
- Smart cell balancing algorithm with integrated FETs (up to 50-mA balancing current), also supports external FETs for higher cell-balancing current
- Ultra-low power HIBERNATE mode
- High 36-V absolute maximum rating per cell input
- Resistor programmable overcurrent (OCD1/2) delay
- SHUTDOWN mode: 0.5-µA maximum
- Functional Safety-Capable
- Documentation available to aid functional safety system design
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Function | Protection | Number of series cells (min) | 3, 4, 5 |
Number of series cells (max) | 4, 5 | Features | Cell balancing, FET drive, Open wire (OW), Over-temperature (OT), Overcurrent during charge (OCC), Overcurrent during discharge (OCD), Overvoltage, Short-circuit Discharge (SCD), Stackable, Under-temperature (UT), Undervoltage |
Operating current (typ) (µA) | 8 | Rating | Catalog |
Vin (max) (V) | 25 | TI functional safety category | Functional Safety-Capable |
Overvoltage protection | 3.8, 4.2, 4.25, 4.275, 4.3 | Operating temperature range (°C) | -40 to 85 |
Battery overvoltage protection (min) (V) | 3 | Battery overvoltage protection (max) (V) | 4.575 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package
Shipping:For example, FedEx, SF, UPS, or DHL.UPS, or DHL.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment
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