MC33151D

Overview

The MC33151D is a dual inverting high-speed MOSFET gate driver manufactured by onsemi. It features two independent channels with 1.5 A peak source and sink current capability. The device operates within a supply voltage range of 6.5 V to 18 V. Key electrical parameters include a propagation delay of 100 ns, rise time of 31 ns, and fall time of 32 ns. It utilizes an 8-SOIC surface-mount package and supports an operating temperature range from -40 °C to 85 °C.

Feature Summary

• Dual independent channels designed for driving large capacitive loads with high slew rates
• CMOS and LSTTL logic compatible inputs featuring hysteresis for fast output switching
• Integrated undervoltage lockout with hysteresis to prevent erratic operation at low supply voltages
• Totem pole outputs optimized for efficient high-frequency power switching applications

Applications

• Switching power supplies
• DC-DC converters
• Capacitor charge pump voltage doublers and inverters
• Motor controllers

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required package type and thermal performance for the target application environment. Cross-reference manufacturer documentation for any recent product change notices or lifecycle status updates before finalizing procurement decisions.

Selection Notes

Select this component when dual-channel low-side driving is required for N-channel MOSFETs. The 1.5 A output current supports moderate load capacitance without external buffering. Verify input logic levels match the control circuitry, as the device accepts CMOS and LSTTL signals. Consider the SOIC package constraints for PCB layout and thermal dissipation requirements during system design.

Part Context

This part belongs to the MC3315x series of high-speed gate drivers. It serves as a direct pin-compatible replacement for legacy devices such as the DS0026 and MMH0026. The series is engineered to enhance system performance when paired with common switching regulator control ICs, offering improved efficiency and reduced standby current compared to earlier generations.

Replacement Considerations

Direct substitutes include the MC33151DG and MC33151DR2 variants, which share identical functional specifications. These alternatives offer different packaging options while maintaining the same electrical characteristics and pin configuration for seamless integration into existing designs.