UCC2802QDRQ1

Overview

The UCC2802QDRQ1 is a current-mode PWM controller designed for automotive applications, featuring a low-power bootstrap integrated circuit. It operates with a switching frequency of 1 MHz and supports a maximum duty cycle of 100%. The device provides an output drive current of 1 A and functions within a temperature range of -55°C to +125°C. Packaged in an SOIC-8 surface-mount format, it includes rise and fall times of 41 ns and 44 ns respectively, ensuring precise timing control for high-efficiency power conversion systems.

Feature Summary

• Supports 100% duty cycle operation for flexible topology designs
• Integrated low-power bootstrap IC reduces external component count
• Automotive-grade reliability with extended temperature range coverage

Applications

• Automotive DC/DC converter designs
• High-efficiency power supply topologies requiring 100% duty cycle
• Current-mode controlled switching regulators

Procurement Notes

Verify the specific suffix QDRQ1 against the official Texas Instruments datasheet to confirm automotive qualification and package type. Ensure compatibility with system voltage requirements and thermal management needs. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning.

Selection Notes

Select this component when designing automotive power systems that require a single-output current-mode controller with 100% duty cycle capability. The integrated bootstrap feature simplifies gate drive circuitry compared to standard controllers. Consider the SOIC-8 package constraints and the -55°C to +125°C operating range for harsh environment suitability. Evaluate the 1 MHz switching frequency against EMI requirements and passive component sizing.

Part Context

Part of the UCC280x-Q1 family of automotive switch controllers from Texas Instruments. This series targets high-reliability power management solutions for vehicle electronics. The UCC2802 variant specifically enables continuous conduction mode operation through its full-duty-cycle support, distinguishing it from limited-duty-cycle counterparts in the same product line.

Replacement Considerations

UCC2803QDRQ1: Offers similar current-mode control but limits duty cycle to 50%, suitable for different topologies. UCC2805QDREP: Automotive-grade alternative with 50% max duty cycle and slightly different temperature specifications.