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The DRV593 and DRV594 are high-efficiency, high-current power amplifiers ideal for driving a wide variety of thermoelectric cooler elements in systems powered from 2.8 V to 5.5 V. The operaTIon of the device requires only one inductor and capacitor for the output filter, saving significant printed-circuit board area. Pulse-width modulaTIon (PWM) operaTIon and low output stage on-resistance significantly decrease power dissipaTIon in the amplifier.
The DRV593 and DRV594 are internally protected against thermal and current overloads. Logic-level fault indicators signal when the junction temperature has reached approximately 128°C to allow for system-level shutdown before the amplifier’s internal thermal shutdown circuitry activates.
