STMicroelectronics STL24N60M6

Overview

STL24N60M6 from STMicroelectronics is an N-channel 600 V, 15 A MDmesh™ M6 superjunction power MOSFET in PowerFLAT™ 8x8 HV package, featuring 0.175 Ω typ. R_DS(on), 23 nC total gate charge, and 100% avalanche-tested ruggedness. It serves as a high-efficiency primary-side switch in high-voltage resonant converters.

For engineers reviewing the STL24N60M6 datasheet, STL24N60M6 pinout, STL24N60M6 application, or STL24N60M6 equivalent, key selection criteria include switching loss optimization in LLC topologies, diode recovery robustness (t_rr = 225 ns @ T_j = 25 °C), and thermal performance (R_thj-case = 1.15 °C/W) under continuous 15 A conduction.

Technical Context

This MOSFET implements ST's MDmesh™ M6 silicon technology, delivering improved R_DS(on)/area over prior generations while maintaining low gate input resistance (5 Ω) and high dv/dt ruggedness (50 V/ns). Its Zener-protected gate enables reliable operation under transient stress.

The device integrates a fast, soft-recovery body diode (Q_rr = 2.3 µC, I_RRM = 20.4 A) optimized for zero-voltage switching (ZVS) in resonant converters. Safe operating area (SOA) is validated up to 10 ms at 25 °C with V_GS = 10 V, supporting high-pulse reliability in boost PFC stages.

Key Specifications

Pinout & Package

PowerFLAT™ 8x8 HV is a surface-mount, thermally enhanced package with exposed drain pad on bottom side for direct PCB thermal coupling. It features 5 terminals arranged in single-row configuration with dual source connections for current sharing and reduced source inductance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage superjunction MOSFET applications.

Compared with IPP60R190C7 and IXTH15N60L2, STL24N60M6 delivers superior power density via PowerFLAT™ 8x8 HV, lower conduction loss, and built-in Zener gate protection-making it optimal for space-constrained, high-reliability resonant converters where thermal management and transient robustness are critical.

Availability

STL24N60M6 is available at Aetrix Electronics and suitable for server power supplies, industrial PFC modules, and EV onboard chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STL24N60M6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The MDmesh™ M6 product line targets high-efficiency, high-frequency SMPS applications-including LLC resonant converters, telecom rectifiers, and industrial PFC-by optimizing the trade-off between conduction loss, switching loss, and ruggedness.

FAQ

What is the maximum recommended gate drive voltage for STL24N60M6?

The absolute maximum gate-source voltage is ±25 V per datasheet Table 1. ST recommends limiting V_GS to 10–15 V for normal operation to balance switching speed and gate oxide reliability. Exceeding 20 V increases risk of gate oxide degradation over time, especially at elevated junction temperatures above 125 °C.

Can STL24N60M6 be used in parallel configurations?

Yes-its positive temperature coefficient for R_DS(on) (see Figure 10) enables inherent current sharing. However, layout symmetry is critical: matched gate trace inductance, identical source loop lengths, and shared thermal mass across paralleled units are required to prevent dynamic imbalance and localized overheating.

Does STL24N60M6 require a gate resistor for EMI suppression?

A gate resistor (typically 4.7–10 Ω) is recommended to dampen ringing caused by gate-drain capacitance (C_rss = 4.5 pF) interacting with PCB trace inductance. Without it, overshoot exceeding ±25 V may occur during fast switching, risking gate oxide failure despite the internal Zener protection.

How does the body diode performance compare to discrete SiC Schottky diodes?

The integrated body diode has t_rr = 225 ns and Q_rr = 2.3 µC at 25 °C-significantly better than earlier SJ MOSFETs but higher loss than SiC Schottky diodes (t_rr ≈ 0 ns). For ultra-high-frequency ZVS designs (>500 kHz), a discrete SiC diode may still be preferred, though STL24N60M6's soft recovery reduces associated EMI.