BQ76200PW BQ76200P Power Semiconductor Devices Battery Protection IC

BQ76200PW BQ76200P BQ76200PWR TSSOP Battery Battery Protection IC

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1 Features

1• CHG and DSG high-side NMOS FET drivers for
battery protection fast FET turn-on and turn-off
times
• Pre-charge PFET driver (for current-limited precharge of significantly depleted cell-pack)
• Independent digital enable control for charging
and discharging
• Minimal external components needed
• Scalable external capacitor-based charge pump to
accommodate a different range of FETs in parallel
• High-voltage tolerant (100-V absolute maximum)
• Internal switch to enable pack-voltage sensing
• Common and separate charge and discharge path
configuration support
• Designed to work directly with bq76940, bq76930,
and bq76920 battery monitors
• Current consumption:
– NORMAL mode: 40 µA
– SHUTDOWN: < 10 µA maximum

2 Applications

• eBikes, eScooters, and eMotorcycles
• Energy storage systems and uninterruptible power
supplies (UPS)
• Portable medical systems
• Wireless base-station battery systems
• Lead acid (PbA) replacement batteries
• 12-V to 48-V battery packs

3 Description

The bq76200 device is a low-power, high-side, Nchannel system. A high-side protection avoids ground disconnection in the system and also allows continuous communication between the battery pack and host system. The device has additional PChannel FET control to allow low-current pre-charge to a deeply depleted battery, and a PACK+ voltage monitor control for the host to sense the PACK+ voltage.

The independent enable inputs allow CHG and DSG FETs to be turned on and off separately, offering great implementation flexibility in battery systems.

The bq76200 device can be used with a companion analog front end (AFE) device such as the bq76920/30/40 family, a 3-series to 15-series Cell Analog Front End Monitoring, and a host microcontroller or dedicated state-of-charge (SOC) tracking gas gauge device.

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