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100-V high-side FET driver offers industrial battery power protection

100-V high-side FET driver offers industrial battery power protection

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By eeNews Europe



The bq76200 high-voltage solution efficiently drives high-side N-channel charge and discharge FETs in batteries commonly used in energy storage systems and motor-driven applications, including drones, power tools, e-bikes and more.

Compared to typical 50-V low-side FET driver solutions, the 100-V high-side FET driver provides protection against possible inductive transient events in motor-driven applications, which can cause battery voltages to jump as much as 200 percent above normal. The bq76200 also helps maintain constant battery monitoring and enhanced system diagnostics – even when charging and discharging is disabled.

The bq76200 is compatible with a variety of battery architectures, capacities and voltage ranges from 8-V to 75-V, with an absolute maximum of 100-V.  The device’sfast-switching feature minimizes fault response time and disables the discharge FET if a battery has been severely discharged.

The adaptable driver works with small to large power FET arrays by simply scaling the charge-pump capacitor, reducing engineering overhead and speeding development time.  The bq76200 integrates a high-voltage charge pump and dual FET drivers into one 5-mm by 4.4-mm by 1-mm thin shrink small outline package (TSSOP).

The bq76200 can be used in conjunction with the bq76940 battery-monitoring family, allowing for the application to move to a high-side FET drive and ensure that communication is always possible. The bq76200 can also drive TI’s CSD19531Q5A 100-V NexFET power MOSFET as showcased in the bq76200 evaluation module.


Availability and Pricing

The bq76200 is available now in the TI store and through the company’s authorized distribution network. The driver is packaged in a 16-pin TSSOP and is priced at $1.69 in 1,000-unit quantities.

www.ti.com

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