MIC4604 Half-Bridge MOSFET Driver IC – Microchip Technology | MIC4604YMT-TR | MIC4604 SMD IC |  4605 SMD IC.

The MIC4604YMT-TR is a high-speed 85V Half-Bridge MOSFET Driver IC manufactured by Microchip Technology. It is designed to drive high-side and low-side N-channel MOSFETs in half-bridge switching applications. The MIC4604 features independently controlled high-side and low-side gate driver outputs, TTL-compatible input thresholds, fast switching performance, bootstrap operation, and undervoltage protection.

This MIC4604 SMD IC MOSFET Driver is suitable for applications such as DC motor control, power supplies, switching converters, motor drivers, inverter circuits, and other high-frequency power switching designs. The device supports a programmable gate-drive voltage of up to 16V and operates over a junction temperature range of -40°C to +125°C.

Key Features

• Product: MIC4604YMT-TR
• Manufacturer: Microchip Technology
• Function: Half-Bridge MOSFET Gate Driver
• Driver Type: High-Side and Low-Side MOSFET Driver
• Maximum Bus Voltage: Up to 85V
• Gate Drive Supply: 5.25V to 16V
• Programmable Gate Drive: Up to 16V
• Output Configuration: Half-Bridge
• Number of Drivers: 2
• Channel Control: Independent High-Side and Low-Side Drivers
• Input Type: Non-Inverting
• Input Logic: TTL Compatible
• Peak Output Current: Up to 1.5A Source / 1A Sink
• Typical Rise/Fall Time: Approximately 20ns with specified capacitive load
• Operating Junction Temperature: -40°C to +125°C
• Package: 10-Pin 2.5mm × 2.5mm TDFN
• Mounting Type: Surface Mount (SMD)
• Package Part Number: MIC4604YMT-TR
• Packaging: Tape and Reel
• Application: N-Channel MOSFET Gate Driving

The MIC4604 also includes a high-voltage internal diode to assist in charging the high-side bootstrap capacitor, along with undervoltage protection for both high-side and low-side drivers.

MIC4604 SMD IC Pinout

For the MIC4604YMT 10-pin TDFN package, the main pin functions are:

• VDD: Driver supply voltage
• HB: High-side bootstrap supply
• HO: High-side gate driver output
• HS: High-side source/bridge switching node
• LO: Low-side gate driver output
• VSS: Ground
• LI: Low-side driver input
• HI: High-side driver input
• EP: Exposed pad
• NC: No Connection

Important: The exact physical pin numbering and pin arrangement depend on the package. The MIC4604YMT-TR 10-pin TDFN and MIC4604YM-TR 8-pin SOIC versions have different package pin configurations. Always check the latest Microchip datasheet before PCB design or replacement.

MIC4604 SMD IC MOSFET Driver Applications

The MIC4604 can be used in a wide range of power electronics and switching applications, including:

• DC motor driver circuits
• Half-bridge MOSFET driver circuits
• Inverter and power inverter circuits
• DC-DC converter circuits
• Switching power supplies
• Motor control systems
• High-side and low-side MOSFET switching
• Industrial power control systems
• Battery-powered equipment
• Automotive and embedded power applications
• High-frequency switching circuits
• Power management systems

4604 IC Equivalent / Replacement

The MIC4604 is a specific Microchip half-bridge MOSFET driver IC, so an equivalent should not be selected only by the “4604” marking. A replacement must match the driver topology, maximum bus voltage, supply voltage, input logic, output current, pin configuration, package, and bootstrap requirements.

For direct replacement, first check the exact package and part number:

• MIC4604YMT-TR: 10-pin 2.5mm × 2.5mm TDFN
• MIC4604YM-TR: 8-pin SOIC

For PCB repair, replacing one MIC4604 package with another package version is not necessarily pin-to-pin compatible. Verify the datasheet and PCB footprint before substitution.

4604 IC Pinout

The term “4604 IC pinout” can refer to different ICs with similar marking numbers. The MIC4604 specifically is a half-bridge MOSFET gate driver. Its important signal pins include HI, LI, HO, LO, HB, HS, VDD, and VSS. The correct pin numbering should always be checked according to the package version being used.

MIC4604 SMD IC Datasheet

The MIC4604 SMD IC datasheet provides complete information about electrical characteristics, absolute maximum ratings, pin configuration, functional block diagram, application circuits, package dimensions, and ordering information.

Manufacturer: Microchip Technology
IC Series: MIC4604
Device: 85V Half-Bridge MOSFET Driver
Part Number: MIC4604YMT-TR
Package: 10-Pin TDFN
Temperature Range: -40°C to +125°C

For the latest technical specifications and exact pinout, refer to the official Microchip datasheet.

Why Buy MIC4604YMT-TR from ELCMart?

• Genuine and reliable electronic component sourcing
• Suitable for inverter and power electronics repair
• Ideal for MOSFET gate driver applications
• Compact SMD package for space-saving PCB designs
• Useful for electronics repair technicians and engineers
• Suitable for DIY electronics and professional circuit development
• Carefully check package and part number before ordering

Note: Please verify the IC part number, package type, pin configuration, and electrical specifications before purchasing or installing the component. Product images and markings may vary depending on manufacturing batch and packaging.