MIC4469BN

Overview

The MIC4469BN is a quad low-side MOSFET driver manufactured by Microchip Technology, housed in a 14-DIP package. It provides independent drive for four N-channel and P-channel MOSFETs with a supply voltage range of 4.5V to 18V. The device features symmetrical rise and fall times of 14ns and 13ns respectively, with peak output currents of 1.2A for both sourcing and sinking. Logic input thresholds are defined at 0.8V (VIL) and 2.4V (VIH). It operates within a temperature range of -40°C to 85°C and supports both inverting and non-inverting input configurations.

Feature Summary

• Integrates four independent low-side drivers with onboard AND/INVERT logic gates to reduce component count
• Provides high peak output current capability of 1.2A for rapid MOSFET switching
• Features robust latch-up resistance and tolerance for ground line noise spikes
• Supports direct CMOS and TTL logic interface compatibility

Applications

• Direct driving of low-current motors
• Driving MOSFETs in H-bridge configurations for higher current motor drive
• General purpose low-side switching applications requiring fast transition times

Procurement Notes

Verify the specific revision and manufacturing date code upon ordering, as this part may be subject to lifecycle changes. Confirm that the 14-DIP through-hole package aligns with your PCB footprint requirements. Ensure that the operating temperature range of -40°C to 85°C meets your system's environmental specifications. Check for RoHS compliance status if required by your assembly standards, as older revisions may differ.

Selection Notes

Select the MIC4469BN when a quad low-side driver with integrated logic gating is required. It is suitable for designs needing simultaneous inverting and non-inverting outputs for each channel. Consider the 1.2A peak current rating against the total gate charge of the target MOSFETs. Compare against the TC4469 series if surface-mount packaging or extended temperature ranges are preferred over the DIP form factor.

Part Context

The MIC4469BN belongs to the TC4467/TC4468/TC4469 family of four-output CMOS buffers and MOSFET drivers. This family distinguishes itself by incorporating two inputs per output configured as logic gates, specifically AND/INVERT for the 4469 variant. The devices are designed for high reliability with latch-up protection and are available in various packages including DIP and SOIC across commercial and industrial temperature grades.

Replacement Considerations

The MIC4469YN is listed as a direct substitute. The TC4469CPD and TC4469EPD are noted as similar alternatives, though they utilize different packaging formats such as SOIC compared to the DIP package of the MIC4469BN.