Renesas PS9402-V-E3-AX

Overview

PS9402-V-E3-AX from Renesas Electronics is a 16-pin SSOP photovoltaic gate driver IC with GaAlAs LED input and integrated power output transistor, desaturation detection, active Miller clamping, UVLO with hysteresis, and 2.5 A peak output current. It delivers high-speed switching (tPLH/tPHL ≤ 200 ns), 25 kV/μs common-mode transient immunity, and is designed for IGBT and Power MOSFET gate driving in industrial inverters and UPS systems.

For engineers reviewing the PS9402-V-E3-AX datasheet, PS9402-V-E3-AX pinout, PS9402-V-E3-AX application, or PS9402-V-E3-AX equivalent, key selection criteria include confirmed desaturation fault response time (tDESAT(FAULT) = 400–800 ns), Miller clamp threshold (VtClamp = 2.0 V), UVLO hysteresis (0.4–1.3 V), isolation voltage (5000 Vrms), and DIN EN60747-5-2 (VDE0884 Part2) certification.

Technical Context

The PS9402-V-E3-AX implements an optically isolated gate drive architecture with dual-stage signal processing: input-side GaAlAs LED coupled to on-chip photodiode, followed by analog comparator-based desaturation sensing and digital logic-controlled output stage. Its UVLO circuit monitors (VCC2 − VEE) with asymmetric thresholds (VUVLO+ = 11.0–13.5 V, VUVLO− = 9.8–12.3 V) to prevent erroneous turn-on during undervoltage conditions.

Desaturation detection operates via external RC network on Pin 14 (DESAT), triggering FAULT (Pin 3) within 400–800 ns when VDESAT exceeds 6.0–7.5 V. Miller clamping activates at VClamp = 2.0 V to suppress parasitic turn-on, sinking up to 1.7 A peak current through Pin 11 (Vclamp).

Key Specifications

Pinout & Package

The PS9402-V-E3-AX is housed in a 16-pin Shrink Small Outline Package (SSOP) with 1.27 mm pitch, 10.36 mm × 7.49 mm body size, and 8 mm minimum creepage distance for reinforced isolation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IGBT gate driver applications.

Compared with ACPL-332J-000E and SI8233AD-D-IS, the PS9402-V-E3-AX provides fully integrated desaturation detection, Miller clamping, and UVLO hysteresis in a single SSOP package-reducing BOM count and PCB area while delivering deterministic fault response under 1 μs.

Availability

PS9402-V-E3-AX is available at Aetrix Electronics and suitable for industrial inverters, uninterruptible power supplies, and solar photovoltaic systems requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for PS9402-V-E3-AX 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

Renesas Electronics is a global semiconductor manufacturer specializing in microcontrollers, analog, power, and mixed-signal solutions for automotive, industrial, and infrastructure markets.

The PS9402-V-E3-AX belongs to Renesas' high-reliability photocoupler gate driver family, engineered specifically for ruggedized IGBT/MOSFET drive in high-noise, high-voltage industrial power conversion systems.

FAQ

What is the maximum recommended operating temperature for the PS9402-V-E3-AX?

The PS9402-V-E3-AX supports an operating ambient temperature range of −40°C to +110°C, with derated output power above +70°C. Its thermal design allows continuous operation at full 2.5 A peak output current up to +100°C ambient, verified per the Absolute Maximum Ratings table and Typical Characteristics curves on page 12 of the datasheet.

Does the PS9402-V-E3-AX require external components for desaturation detection?

Yes, the PS9402-V-E3-AX requires an external RC network connected to Pin 14 (DESAT) to set blanking time and sensing threshold. A typical configuration uses a 100 pF capacitor and 2.1 kΩ resistor, as shown in Figure 17 on page 10 of the datasheet. The device internally compares the DESAT pin voltage against 6.0–7.5 V to trigger fault response.

How does the Miller clamping function operate in the PS9402-V-E3-AX?

The PS9402-V-E3-AX activates Miller clamping when the voltage at Pin 11 (Vclamp) reaches 2.0 V, sinking up to 1.7 A to hold the IGBT gate-emitter voltage below threshold during high dv/dt conditions. This occurs independently of the main VO output and remains active only during the clamping event, preventing parasitic turn-on without affecting normal gate drive timing.

What safety certifications apply to the PS9402-V-E3-AX variant?

The PS9402-V-E3-AX carries DIN EN60747-5-2 (VDE0884 Part2) certification (No. 40024069, Option), in addition to UL E72422 and CSA CA101391 approvals. This VDE rating confirms reinforced insulation performance including partial discharge testing at 2119 Vpeak, making it suitable for applications demanding highest isolation integrity.

Can the PS9402-V-E3-AX drive both N-channel IGBTs and Si-MOSFETs?

Yes, the PS9402-V-E3-AX is explicitly qualified for driving both IGBTs and Power MOSFETs, as stated in the product description on page 1. Its 2.5 A peak output current, 200 ns propagation delay, and active Miller clamping support fast-switching Si-MOSFETs up to 650 V and IGBTs up to 1200 V in hard-switched and resonant topologies.