Gehäuseinformationen
| Gehäuse | Pins TO-263 (KTW) | 7 |
| Betriebstemperaturbereich (°C) -40 to 85 |
| Gehäusemenge | Träger 250 | SMALL T&R |
Merkmale von OPA548
- Wide supply range
- Single supply: 8 V to 60 V
- Dual supply: ±4 V to ±30 V
- High-output current:
- 3-A continuous
- 5-A peak
- Wide output voltage swing
- Fully protected:
- Thermal shutdown
- Adjustable current limit
- Output disable control˜
- Thermal shutdown indicator
- High slew rate: 10 V
- Low quiescent current
- Packages:
- 7-lead TO-220, zip and straight leads
- 7-lead DDPAK surface-mount
Beschreibung von OPA548
The OPA548 device is a low-cost, high-voltage, and high-current operational amplifier that is designed to drive a wide variety of loads. A laser-trimmed, monolithic, integrated circuit provides excellent low-level signal accuracy and high-output voltage and current.
The OPA548 operates from either single or dual supplies for design flexibility. In single-supply operation, the input common-mode range extends below ground.
The OPA548 is internally protected against overtemperature conditions and current overloads. In addition, the OPA548 is designed to provide an accurate, user-selected current limit. Unlike other designs that use a power resistor in series with the output current path, the OPA548 senses the load indirectly. The current limit is adjustable from 0 A to 5 A with an external resistor and potentiometer, or controllable digitally with a voltage-out or current-out DAC.
The Enable/Status (E/S) pin provides two functions. An input on the pin not only disables the output stage to effectively disconnect the load, but also reduces the quiescent current to conserve power. The E/S pin output can be monitored to determine if the OPA548 is in thermal shutdown.
The OPA548 device is available in an industry-standard 7-lead staggered and straight lead TO-220 package, and a 7-lead DDPAK surface-mount plastic power package. The copper tab allows easy mounting to a heat sink or circuit board for excellent thermal performance. The device is specified for operation over the extended industrial temperature range, –40°C to 85°C. A SPICE macromodel is available for design analysis.