TC4403EPA

Overview

The TC4403EPA is a dual MOSFET gate driver manufactured by Microchip Technology, designed for driving floating or isolated loads that require high-current pulses. It operates within a supply voltage range of 4.5 V to 18 V and delivers an output current of 1.5 A. The device features non-inverting logic compatible with CMOS and TTL inputs. Electrical performance includes a rise time of 23 ns and a fall time of 25 ns. It is housed in an 8-pin PDIP package and supports through-hole mounting. The component is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Modified architecture derived from the TC4425 driver specifically optimized for high-current pulse delivery to floating or isolated loads
• Dual-channel configuration providing independent control for two outputs with non-inverting signal logic
• Direct compatibility with standard CMOS and TTL logic families for simplified interface integration

Applications

• Driving floating or isolated load circuits requiring high-current switching pulses
• Power management systems utilizing N-channel MOSFETs
• General-purpose low-side switching applications in industrial electronics

Procurement Notes

Verify the specific suffix 'EPA' confirms the commercial grade temperature rating of -40°C to +85°C and the PDIP-8 package style. Ensure the procurement order explicitly matches this part number to distinguish it from other variants such as the CPA or MJA which differ in temperature range or packaging. Cross-reference the manufacturer datasheet to confirm current production status and RoHS compliance details before finalizing purchase orders.

Selection Notes

Select this component when the application requires a dual gate driver capable of sourcing and sinking 1.5 A for fast-switching N-channel MOSFETs. The non-inverting configuration simplifies control logic compared to inverting alternatives. Consider the 23 ns rise and 25 ns fall times for timing-sensitive designs. The wide supply voltage range allows flexibility in system power architectures while maintaining robust drive capability for capacitive loads.

Part Context

This device belongs to the TC4403 series of power drivers from Microchip Technology. It serves as a specialized variant of the TC4425, tailored for applications demanding high peak currents for isolated loads. The series is categorized under PMIC power management ICs, specifically functioning as MOSFET gate drivers within mixed-signal electronic systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.