MC34152P Low-Side Gate Driver IC Equivalent & Substitute Parts

Part Overview

The MC34152P is a low-side gate driver IC manufactured by onsemi, designed for driving N-Channel MOSFET gates in power management applications. This device operates with a supply voltage range of 6.1V to 18V and delivers 1.5A peak output current (source and sink). The MC34152P is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain compatibility with the 8-DIP package format and preserve the non-inverting input configuration and independent dual-channel architecture.

Substiute Parts

MC34152P

onsemiIn Stock: 1506MC34152P Datasheet

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MIC4427YN

Microchip TechnologyIn Stock: 1327MIC4427YN Datasheet

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TC4427EPA

Microchip TechnologyIn Stock: 9172TC4427EPA Datasheet

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UCC27424P

Texas InstrumentsIn Stock: 5272UCC27424P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MC34152P is determined by the following mandatory parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 independent channels
• Input Type: Must be Non-Inverting
• Package / Case: Must be 8-DIP (0.300", 7.62mm)
• Mounting Type: Must be Through Hole
• Current - Peak Output: Must support minimum 1.5A source and sink capability
• Voltage - Supply: Must encompass or exceed the 6.1V minimum supply requirement

The three substitute parts identified—MIC4427YN, TC4427EPA, and UCC27424P—satisfy all mandatory substitution criteria. Each part maintains the dual-channel, low-side, non-inverting gate driver architecture in the 8-DIP through-hole package. Variations in supply voltage range, logic thresholds, rise/fall times, and operating temperature ranges represent performance enhancements or design-specific advantages rather than substitution barriers.

Parameter Comparison

Engineering Selection Recommendations

MIC4427YN (Microchip Technology) is an active product with ROHS3 compliance. This part offers improved rise/fall time performance (20ns, 29ns) compared to the MC34152P and extends the operating temperature range to -40°C ~ 150°C (TJ). The supply voltage range of 4.5V ~ 18V provides additional design flexibility at lower supply voltages. MIC4427YN is suitable for applications requiring RoHS compliance and extended temperature operation.

TC4427EPA (Microchip Technology) is an active product with ROHS3 compliance and the fastest rise/fall time performance (19ns, 19ns) among all substitutes. The supply voltage range of 4.5V ~ 18V matches MIC4427YN. Operating temperature range is -40°C ~ 85°C (TA), which is narrower than the MC34152P. TC4427EPA is optimal for high-speed switching applications where rise/fall time performance is critical and operating temperatures remain within -40°C to 85°C.

UCC27424P (Texas Instruments) is in Last Time Buy status with ROHS3 compliance. This part delivers superior peak output current capability (4A source and sink) compared to the MC34152P (1.5A). The supply voltage range of 4V ~ 15V is narrower than the original part. Operating temperature range is -40°C ~ 125°C (TA). UCC27424P is appropriate for applications requiring higher output current drive capability and where supply voltage remains within 4V to 15V.

Frequently Asked Questions (FAQ)

Q: Can MIC4427YN directly replace MC34152P in existing designs?

A: Yes. MIC4427YN maintains identical driven configuration (low-side), channel count (2 independent), input type (non-inverting), and 8-DIP package format. Peak output current (1.5A source and sink) matches the original specification. The part is pin-compatible and functionally equivalent for the same application requirements.

Q: What is the primary advantage of TC4427EPA over MC34152P?

A: TC4427EPA provides faster rise and fall times (19ns each) compared to MC34152P (36ns rise, 32ns fall). This faster switching performance reduces gate charge delay and improves overall power conversion efficiency in high-frequency switching applications. Both parts maintain identical output current and package specifications.

Q: Why does UCC27424P have higher peak output current?

A: UCC27424P is specified with 4A peak output current (source and sink) versus 1.5A for MC34152P. This higher current capability allows UCC27424P to drive larger MOSFET gates or multiple gates in parallel with reduced switching delays. Applications requiring higher gate drive current should select UCC27424P.

Q: Are all substitute parts RoHS compliant?

A: Yes. MIC4427YN, TC4427EPA, and UCC27424P are all ROHS3 compliant. The original MC34152P is RoHS non-compliant. For applications requiring RoHS compliance, any of the three substitute parts satisfy regulatory requirements.

Q: What is the supply voltage consideration when selecting a substitute?

A: MC34152P operates from 6.1V to 18V. MIC4427YN and TC4427EPA extend the lower limit to 4.5V, providing flexibility for lower-voltage applications. UCC27424P operates from 4V to 15V, which is narrower at the upper end. Verify that the selected substitute's supply voltage range encompasses your application's operating range.

Q: Can I use UCC27424P in a design originally specified for MC34152P?

A: UCC27424P is functionally compatible if your application's supply voltage remains within 4V to 15V. The higher output current (4A versus 1.5A) is not a limitation—it provides additional capability. Verify that your circuit design does not depend on the narrower supply voltage range of UCC27424P before substitution.

Q: Are there package or pinout differences between these parts?

A: All four parts use the 8-DIP (0.300", 7.62mm) through-hole package with identical pinout. Direct board-level substitution is possible without PCB modifications.