MIC4452ZT - 12A Non-Inverting Low-Side MOSFET Driver | Microchip
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MIC4452ZT Overview
A MOSFET gate driver is a specialized power-management IC that converts a low-current logic command into the high peak-current charge and discharge pulses required by a power MOSFET gate. In the broader hierarchy, the MIC4452ZT is a gate driver, then a power MOSFET driver, a power management IC, and a semiconductor. Low-side placement means the driver sits on the same supply side as the MOSFET source referenced to ground.
Key verified characteristics include a 12 A peak output, low-side configuration, non-inverting input operation, and approximately 15 ns propagation delay. The manufacturer states that MIC4451 and MIC4452 accept any logic input from 2.4 V up to the supply voltage without external speed-up capacitors or resistor networks. This simplifies control interfaces across different logic-voltage domains.
The CMOS output stage can charge and discharge large MOSFET gates rapidly, reducing switching transition time and associated conduction or switching losses. Its 12 A peak capability provides a substantial drive-current margin over the average gate current required during switching. The MIC4452 is the non-inverting member of the family, whereas MIC4451 uses an inverting input configuration.
Typical uses include DC motor control, power-converter switching, load drivers, and general high-current MOSFET switching. The TO-220-5 construction also offers a larger thermal path than small surface-mount driver packages, although exact junction-temperature and thermal-resistance limits must be taken from the manufacturer datasheet.
Designers should verify absolute maximum voltage, input thresholds, output behavior, and thermal conditions against the official datasheet before production use. Gate resistance, dead time, layout inductance, and the selected MOSFET remain critical to switching performance. The verified material does not provide complete pricing or a complete pin-level mapping, so those details are marked as needed rather than inferred.
Drop-in alternatives for MIC4452ZT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MIC4451ZT
✅ Drop-In📋 Reference alternative (not in catalog)
MIC4452YT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TC4452
✅ Drop-In📋 Reference alternative (not in catalog)
TC4452VAT
✅ Drop-In📋 Reference alternative (not in catalog)
MIC4452ZT Maximum Ratings & Electrical Characteristics
| Product Type | Non-inverting low-side CMOS MOSFET gate driver |
| Supply Voltage Range | 4.5 V to 18 V |
| Peak Output Current | 12 A |
| Propagation Delay | 15 ns |
| Input Logic Range | 2.4 V to VS |
| Negative Input Swing Tolerance | Up to 5 V |
| Configuration | Low-side |
| Input Polarity | Non-inverting |
| Process Technology | Bipolar, CMOS, and DMOS process |
| Package | TO-220-5 with tab |
| Number of Pins | 5 pins plus tab |
| Packaging | Tube |
| Mounting Type | Through-hole |
| RoHS Status | Compliant |
MIC4452ZT to-220-5 with tab Pin Configuration Guide
Pin configuration for MIC4452ZT (to-220-5 with tab package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for MIC4452ZT.
Refer to the datasheet for full pin configuration.
Typical Applications
MIC4452ZT is suitable for 6 applications: DC Motor Control, Power Converter Switching, High-Current Load Drivers, Motor Driver Power Stage, Power MOSFET Switching in Industrial Systems, Power Supplies and Output Switching.
DC Motor Control
The MIC4452ZT fits low-side N-channel MOSFET switching in DC motor-control circuits because it provides 12 A peak gate-drive current and non-inverting control. The driver can rapidly charge and discharge the MOSFET gate, reducing transition time and helping the switch reach its intended state efficiently. A controller output can drive the input when its voltage falls within the verified 2.4 V-to-VS input range. Place the driver close to the MOSFET and use a properly sized gate resistor to control edge rate, ringing, and motor-current switching behavior.
Recommended
Power Converter Switching
The MIC4452ZT can drive a low-side power MOSFET in DC-DC converter and power-conversion switching stages where rapid gate transitions and 12 A peak capability are useful. Its CMOS output stage supplies high transient current without requiring external gate speed-up networks, while the 4.5 V to 18 V supply range supports conventional low-voltage power systems. The exact switching frequency, dead time, and MOSFET selection must be verified against the converter design, since the supplied data does not specify those limits.
Recommended
High-Current Load Drivers
For high-current inductive or capacitive loads, the MIC4452ZT provides a non-inverting, low-side MOSFET interface with up to 12 A peak output. This peak current primarily serves the MOSFET gate transition, not a continuous 12 A load rating, so the external MOSFET and copper path determine actual load capability. Use short, wide gate and power traces to minimize parasitic inductance, and select a gate resistor or clamp strategy that limits overvoltage while preserving the required switching speed.
Recommended
Motor Driver Power Stage
The MIC4452ZT is suitable for the switching element of a compact motor-driver power stage when the system uses a non-inverting low-side command. Its 12 A peak output and approximately 15 ns propagation delay help the gate transition respond quickly to controller commands. The device does not determine motor current direction by itself, so flyback paths, braking, and protection must be designed around the MOSFET topology. Validate thermal rise and switching losses for the intended duty cycle.
Recommended
Power MOSFET Switching in Industrial Systems
Industrial control boards often use discrete low-side MOSFET switches for relays, heaters, solenoids, and auxiliary power rails. The MIC4452ZT offers a simple non-inverting interface, 4.5 V to 18 V supply range, and 12 A peak gate-drive capability in a through-hole TO-220-5 package. The package supports mechanical mounting and heat spreading, but the design still needs a suitable MOSFET, adequate copper area, and protection against inductive kickback. Confirm the driver’s operating-temperature limits before deployment.
Recommended
Power Supplies and Output Switching
The MIC4452ZT can be used in power-supply output stages or auxiliary switching circuits where a controller needs more gate current than its I/O pin can provide. Its 12 A peak output helps drive a large MOSFET gate rapidly, while the non-inverting input simplifies connection to suitable logic. The driver’s behavior must be checked against the controller voltage, supply sequencing, and fault conditions. Keep the gate loop compact and account for dead time when multiple switches can conduct during transitions.
Recommended
Recommended Products Summary
Engineering reference data for MIC4452ZT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MIC4451ZT | MIC4452YT | TC4452 | TC4452VAT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
Key Differentiators
- Non-inverting control (vs MIC4451ZT)
- Verified 12 A peak output (vs TC4452VAT)
- TO-220-5 through-hole package (vs TC4452)
Design Notes
Place the MIC4452ZT close to the MOSFET gate and power terminals. Keep the gate-drive loop short, use a low-inductance return path, and avoid routing the gate trace through long shared planes. This reduces switching-node ringing and helps the driver’s 12 A peak capability reach the MOSFET efficiently. The tab connection and thermal path must follow the manufacturer package drawing.
The 12 A rating is a peak output capability for charging and discharging the MOSFET gate, not a continuous 12 A regulator or load-current rating. Select the MOSFET, copper traces, connector, and thermal solution for the actual load. For an inductive load, include an appropriate freewheeling path and verify its reverse-voltage stress and switching speed against the driver limits.
Do not assume that any gate driver with similar current capability is pin-compatible. MIC4452ZT is non-inverting, while MIC4451 is the inverting family member. Check the TO-220-5 pin names, tab connection, input thresholds, output polarity, supply range, and absolute maximum ratings in the datasheet before substituting any candidate. The supplied search data does not establish compatibility for TC4452 or TC4452VAT.
Use an external gate resistor to control the switching edge and manage conducted and radiated emissions. Increase resistance when ringing or overshoot is excessive, and reduce it only after checking MOSFET gate voltage, switching loss, and driver capability. A gate-source resistor or other passive clamp may be useful, but its value and voltage rating must be selected from the actual MOSFET and circuit conditions.
Compliance Information
The verified PartGenie result states RoHS compliant. REACH, AEC-Q100 status, lead-free status, halogen-free status, and conflict-minerals information are not established by the supplied manufacturer data.
