BQ76200PWR

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 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.

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

Key features

• 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 Pre charge 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