IR1169SPBF

Gate Driver Overview

The IR1169SPBF is a single-channel, low-side gate driver IC from Infineon Technologies' Advanced SmartRectifier family. It operates within a supply voltage range of 11 V to 19 V and provides an output current capability of 1 A. The device features rise and fall times of 180 ns and 44 ns respectively, with a propagation delay of 70 ns. Designed for secondary-side synchronous rectification in AC-DC converters, it supports switching frequencies up to 500 kHz. The component is housed in an 8-pin SOIC package and functions reliably across an operating temperature range of -25 °C to +125 °C.

Gate Driver Feature Summary

• Integrates proprietary 200V technology for direct sensing in synchronous rectification applications
• Provides cycle-by-cycle Mode of Operation (MOT) protection to enhance system reliability
• Features low quiescent current consumption to improve efficiency at light loads
• Supports DCM and CrCM/QR mode operation for high-efficiency power conversion

Gate Driver Applications

• Telecom Switching Mode Power Supplies (SMPS)
• Server SMPS units
• AC-DC adapters

Gate Driver Procurement Notes

Verify the specific suffix 'PBF' confirms lead-free compliance and RoHS status as per the manufacturer's datasheet. Confirm the package type matches the required 8-pin SOIC footprint for PCB layout compatibility. Check the current lifecycle status, as availability may vary due to production updates or obsolescence notices associated with this component series.

Gate Driver Selection Notes

Select this component for designs requiring a dedicated low-side driver for synchronous rectification in resonant half-bridge topologies. Ensure the control circuit can handle the specified 11 V to 19 V supply range. Consider the 70 ns propagation delay when calculating timing margins for high-frequency operations up to 500 kHz. Verify thermal management requirements for the SOIC package under maximum load conditions.

Gate Driver Part Context

This part belongs to the IR116XXS family of synchronous rectification controllers designed to meet stringent energy efficiency standards such as US DoE and EU CoC regulations. It complements Infineon's OptiMOS and StrongIRFET technologies to optimize overall converter performance. The family includes variants like the IR1168 and IR1169, differentiated by channel count and specific feature sets for various power supply architectures.

Gate Driver Replacement Considerations

The IR1169STRPBF is the tape-and-reel variant of the same functional device. For dual-channel requirements, the IR1168SPBF serves as a related alternative within the same product family.