DRV592数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

The DRV592 is a high-efficiency, high-current H-bridge ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 V to 5.5 V. Low output stage on-resistance significantly decreases power dissipation in the amplifier.

The DRV592 may be driven from any external PWM generator such as a DSP, a microcontroller, or a FPGA. The frequency may vary from dc (i.e., on or off) to 1 MHz. The inputs are compatible with TTL logic levels.

The DRV592 is internally protected against thermal and current overloads. Logic-level fault indicators signal when the junction temperature has reached approximately 130°C to allow for system-level shutdown before the amplifier’s internal thermal shutdown circuitry activates. The fault indicators also signal when an over-current event has occurred. If the over-current circuitry is tripped, the DRV592 automatically resets.

特性 Features

• ±3-A Maximum Output Current
• Requires External PWM From DC to 1 MHz With TTL-Compatible Voltages for High and Low
• Low Supply Voltage Operation: 2.8 V to 5.5 V
• High Efficiency Generates Less Heat
• Over-Current and Thermal Protection
• Fault Indicators for Over-Current, Thermal and Under-Voltage Conditions
• 9×9 mm PowerPAD™ Quad Flatpack
• APPLICATIONS
• Thermoelectric Cooler (TEC) Driver
• Laser Diode Biasing

PowerPAD is a trademark of Texas Instruments.