Produktdetails

Rating Catalog Iq (typ) (mA) 4 Closed/open loop Closed Analog supply (min) (V) 2.8 Analog supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 85
Rating Catalog Iq (typ) (mA) 4 Closed/open loop Closed Analog supply (min) (V) 2.8 Analog supply voltage (max) (V) 5.5 Operating temperature range (°C) -40 to 85
HLQFP (VFP) 32 81 mm² 9 x 9
  • Operation Reduces Output Filter Size and Cost
    by 50% Compared to DRV591
  • ±3-A Maximum Output Current
  • Low Supply Voltage Operation: 2.8 V to 5.5 V
  • High Efficiency Generates Less Heat
  • Overcurrent and Thermal Protection
  • Fault Indicators for Overcurrent, Thermal and
    Undervoltage Conditions
  • Two Selectable Switching Frequencies
  • Internal or External Clock Sync
  • PWM Scheme Optimized for EMI
  • 9×9 mm PowerPAD™ Quad Flatpack Package
  • APPLICATIONS
    • Thermoelectric Cooler (TEC) Driver
    • Laser Diode Biasing

PowerPAD is a trademark of Texas Instruments

  • Operation Reduces Output Filter Size and Cost
    by 50% Compared to DRV591
  • ±3-A Maximum Output Current
  • Low Supply Voltage Operation: 2.8 V to 5.5 V
  • High Efficiency Generates Less Heat
  • Overcurrent and Thermal Protection
  • Fault Indicators for Overcurrent, Thermal and
    Undervoltage Conditions
  • Two Selectable Switching Frequencies
  • Internal or External Clock Sync
  • PWM Scheme Optimized for EMI
  • 9×9 mm PowerPAD™ Quad Flatpack Package
  • APPLICATIONS
    • Thermoelectric Cooler (TEC) Driver
    • Laser Diode Biasing

PowerPAD is a trademark of Texas Instruments

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. The fault indicators also signal when an overcurrent event has occurred. If the overcurrent circuitry is tripped, the devices automatically reset (see application information section for more details).

The PWM switching frequency may be set to 500 kHz or 100 kHz depending on system requirements. To eliminate external components, the gain is fixed at 2.3 V/V for the DRV593. For the DRV594, the gain is fixed at 14.5 V/V.

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. The fault indicators also signal when an overcurrent event has occurred. If the overcurrent circuitry is tripped, the devices automatically reset (see application information section for more details).

The PWM switching frequency may be set to 500 kHz or 100 kHz depending on system requirements. To eliminate external components, the gain is fixed at 2.3 V/V for the DRV593. For the DRV594, the gain is fixed at 14.5 V/V.

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DRV593 AKTIV +/-3 A hocheffizienter PWM-Leistungstreiber This product has a fixed gain of 2.3 V/V compared to 14.5 V/V in DRV594.

Technische Dokumentation

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Typ Titel Datum
* Data sheet DRV593, DRV594 - +/-3 A High-Efficiency PWM Power Driver datasheet (Rev. C) 01 Jul 2010
User guide DRV593 and DRV594 PWM Power Driver Evaluation Module (Rev. A) 01 Mai 2003

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Evaluierungsplatine

DRV594EVM — DRV594 – Evaluierungsmodul (EVM)

The DRV594 is a high-efficiency, high-current power amplifier ideal for driving a wide variety of thermo-electric cooler elements in systems powered from 2.8 V to 5.5 V. The operation requires only one inductor and capacitor for the output filter, saving significant printed-circuit board area. PWM (...)

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PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
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