Overview
The DRV593VFPR, produced by Texas Instruments, is a high-efficiency, high-current power amplifier designed to drive a wide variety of thermoelectric cooler elements. This device operates within a supply voltage range of 2.8 V to 5.5 V, making it versatile for various system requirements. The DRV593VFPR is notable for its high efficiency, which generates less heat, and its ability to reduce output filter size and cost by 50% compared to the DRV591. It features pulse-width modulation (PWM) operation and low output stage on-resistance, significantly decreasing power dissipation in the amplifier.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (AVDD, PVDD) | 2.8 | 5.5 | V | |
| Operating Temperature Range (TA) | -40 | 85 | °C | |
| Maximum Output Current | ±3 | A | ||
| Switching Frequencies | 45 | 50/225 | 55/300 | kHz |
| Thermal Trip Point | 128 | °C | ||
| Quiescent Current (Iq) | 2.5 | 12 | mA | |
| Drain-Source On-State Resistance (rDS(on)) | 25 | 140 | mΩ | |
| Package Type | HLQFP (VFP) 32 pins |
Key Features
- 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 (100 kHz and 500 kHz).
- 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.
Q & A
- What is the supply voltage range for the DRV593VFPR?
The supply voltage range for the DRV593VFPR is 2.8 V to 5.5 V.
- What is the maximum output current of the DRV593VFPR?
The maximum output current of the DRV593VFPR is ±3 A.
- What are the selectable switching frequencies for the DRV593VFPR?
The DRV593VFPR has two selectable switching frequencies: 100 kHz and 500 kHz.
- Does the DRV593VFPR have thermal protection?
- What type of package does the DRV593VFPR come in?
The DRV593VFPR comes in a 9×9 mm PowerPAD™ Quad Flatpack Package (HLQFP) with 32 pins.
- What are the primary applications of the DRV593VFPR?
The primary applications include driving thermoelectric cooler elements and laser diode biasing.
- How does the DRV593VFPR reduce output filter size and cost?
The DRV593VFPR reduces output filter size and cost by 50% compared to the DRV591 by requiring only one inductor and capacitor for the output filter.
- Does the DRV593VFPR support external clock synchronization?
- What is the thermal trip point for the DRV593VFPR?
The thermal trip point for the DRV593VFPR is approximately 128°C.
- How does the DRV593VFPR handle fault conditions?
The DRV593VFPR includes fault indicators for overcurrent, thermal, and undervoltage conditions, and it automatically resets after an overcurrent event.
