Datasheet Texas Instruments DRV592 — Ficha de datos

 www.ti.com SLOS390A – NOVEMBER 2001– REVISED MAY 2002 ±   

   
FEATURES DESCRIPTION D В±3-A Maximum Output Current
D Requires External PWM From DC to 1 MHz 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. With TTL-Compatible Voltages for High and
Low D
D
D
D Low Supply Voltage Operation: 2.8 V to 5.5 V 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. High Efficiency Generates Less Heat
Over-Current and Thermal Protection
Fault Indicators for Over-Current, Thermal
and Under-Voltage Conditions The DRV592 is internally protected against thermal and
current overloads. Logic-level fault indicators signal
when the junction temperature has reached
approximately 130В°C to allow for system-level
shutdown before the amplifier’s internal thermal
shutdown circuitry activates. The fault indicators also …