Overview
The Texas Instruments BQ76200PWR is a low-power, high-side, N-channel MOSFET driver designed for battery-pack protection systems. It features high-side protection, which prevents ground disconnection in the system and ensures continuous communication between the battery pack and the host system. The device includes additional P-Channel FET control for low-current pre-charge of deeply depleted batteries and a PACK+ voltage monitor control for sensing the pack voltage. It is optimized to work with companion analog front-end (AFE) devices such as the bq76920/30/40 family and can be integrated with a host microcontroller or a dedicated state-of-charge (SOC) tracking gas gauge device.
Key Specifications
| Specification | Value |
|---|---|
| Package | TSSOP (16 pins) |
| Operating Temperature Range (°C) | -40 to 85 |
| Package Body Size (mm) | 5.00 × 4.40 × 1.00 |
| High-Voltage Tolerance (V) | 100 (absolute maximum) |
| Current Consumption (NORMAL mode) | 40 µA |
| Current Consumption (SHUTDOWN mode) | < 10 µA (maximum) |
| Voltage Range | 8-75 V |
| Cell Configuration | 3-16 series cells |
Key Features
- CHG and DSG high-side NMOS FET drivers for fast FET turn-on and turn-off times
- Pre-charge PFET driver for current-limited pre-charge of significantly depleted cell-packs
- Independent digital enable control for charging and discharging
- Minimal external components needed
- Scalable external capacitor-based charge pump to accommodate different ranges 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
Applications
- Electric vehicles 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
Q & A
- What is the primary function of the BQ76200PWR device?
The BQ76200PWR is a low-power, high-side, N-channel MOSFET driver designed for battery-pack protection systems, ensuring high-side protection and continuous communication between the battery pack and the host system.
- What types of FET drivers does the BQ76200PWR support?
The device supports CHG and DSG high-side NMOS FET drivers and a pre-charge PFET driver for current-limited pre-charge of significantly depleted cell-packs.
- What is the operating temperature range of the BQ76200PWR?
The operating temperature range is -40°C to 85°C.
- How does the BQ76200PWR manage current consumption?
The device consumes 40 µA in NORMAL mode and less than 10 µA in SHUTDOWN mode.
- What is the voltage range supported by the BQ76200PWR?
The device supports a voltage range of 8-75 V.
- Can the BQ76200PWR be used with other Texas Instruments devices?
Yes, it is designed to work directly with bq76940, bq76930, and bq76920 battery monitors.
- What types of applications is the BQ76200PWR suitable for?
The device is suitable for electric vehicles, energy storage systems, portable medical systems, wireless base-station battery systems, and more.
- How does the BQ76200PWR ensure pack-voltage sensing?
The device has an internal switch to enable pack-voltage sensing through the PMON_EN pin.
- What is the package type and pin count of the BQ76200PWR?
The device comes in a TSSOP package with 16 pins.
- Does the BQ76200PWR require minimal external components?
Yes, the device is designed to require minimal external components.
