UC3176QP

Instrumentation, Op Amps, Buffer Amps Overview

The UC3176QP is a dual power operational amplifier from the UC3176/7 family, designed for full bridge power amplifier applications. It guarantees ±2A output current and operates within a 3V to 35V supply range. The device integrates a precision current sense amplifier with a gain of 8 V/V and includes two supply monitoring inputs for under-voltage lockout. Additional features include a parking function, safe operating area protection via foldback current limiting, and thermal shutdown at 165°C. It is housed in a PLCC-28 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Dual power operational amplifiers with guaranteed ±2A continuous output current capability
• Integrated precision current sense amplifier for accurate load current control
• Dual input under-voltage comparator for independent supply monitoring and system protection
• Built-in safety mechanisms including foldback current limiting, thermal shutdown, and parking function

Instrumentation, Op Amps, Buffer Amps Applications

• Disk head positioning servo systems
• Demanding servo applications requiring precise current control
• Full bridge power amplifier circuits
• Voltage mode drive systems utilizing standard feedback schemes

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the UC3176QP status as Not Recommended for New Designs (NRND) before implementation. Confirm that existing inventory supports ongoing production needs or transition planning. Ensure design compliance with the specified 0 to 70°C operating temperature range. Review the latest datasheet revision SLUS285A for any updates to electrical characteristics or pin configurations prior to finalizing procurement orders.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the UC3176QP when high current drive and integrated protection are required in a single package. The built-in current sense amplifier simplifies designs needing precise load regulation without external sensing components. Consider the PLCC-28 package for applications where through-hole mounting is preferred over surface mount alternatives. Evaluate the thermal resistance specifications to ensure adequate heat dissipation for the intended power dissipation levels.

Instrumentation, Op Amps, Buffer Amps Part Context

The UC3176QP belongs to the UC3176/7 family of full bridge power amplifiers manufactured by Texas Instruments. This family is specifically engineered for robust performance in servo applications. The QP suffix denotes the Plastic Leadless Chip Carrier (PLCC) package variant. The device replaces older discrete solutions by integrating power amplification, current sensing, and protection logic into one component.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.