Renesas PS9306L-AX

Overview

PS9306L-AX from Renesas Electronics is a 6-pin SDIP surface-mount photocoppler optimized for IGBT and power MOSFET gate driving in high-noise industrial inverters and induction heating systems. It delivers 0.6 A peak output current, achieves ≤0.4 μs propagation delay (tPLH/tPHL), and sustains ±25 kV/μs common-mode transient immunity with 5,000 V_r.m.s. isolation voltage.

For engineers reviewing the PS9306L-AX datasheet, PS9306L-AX pinout, PS9306L-AX application, or PS9306L-AX equivalent, this device is selected for high-CMR gate drive where fast switching, creepage-critical PCB layout, and UL/CSA/VDE safety compliance are mandatory - especially in motor drives and resonant converters operating up to 110°C ambient.

Technical Context

The PS9306L-AX integrates a GaAlAs LED input stage with a monolithic photo-diode, signal processing circuit, and power output transistor on a single chip. Its architecture enables direct high-current sourcing/sinking (0.4–0.6 A) without external buffers while maintaining tight timing control (PWD ≤ 0.25 μs) under 30 V supply and 3 nF capacitive load.

Designed for high dv/dt environments, it uses internal shielding and optimized internal layout to achieve ≥25 kV/μs CMR at both high- and low-level output states. The 6-pin SDIP package features gull-wing leads and 7 mm minimum creepage distance, targeting space-constrained industrial gate driver designs requiring reinforced insulation.

Key Specifications

Pinout & Package

The PS9306L-AX is housed in a 6-pin plastic Shrink Dual In-line Package (SDIP) with gull-wing surface-mount leads, measuring 9.7 × 3.7 × 3.5 mm (L×W×H). Mount area is half that of standard 8-pin DIP, enabling compact gate driver layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLP350 and IX3130, PS9306L-AX provides higher peak current (0.6 A), superior CMR (±25 kV/μs), broader safety approvals including optional VDE 0884-2, and guaranteed 7 mm creepage - making it the preferred choice for high-reliability, globally deployed industrial inverters.

Availability

PS9306L-AX is available at Aetrix Electronics and suitable for industrial inverter motor drives, induction heating systems, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for PS9306L-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 leader specializing in microcontrollers, analog, power, and mixed-signal solutions for industrial, automotive, and infrastructure markets.

The PS9306L-AX belongs to Renesas' high-CMR photocoppler product line, engineered specifically for robust gate driving in noisy, high-voltage power conversion systems - emphasizing reliability, safety certification, and thermal resilience.

FAQ

What is the maximum recommended forward current for continuous operation of the PS9306L-AX?

The PS9306L-AX has a continuous forward current rating of 25 mA at 25°C ambient. At elevated temperatures, derating applies: power dissipation reduces to 1.2 mW/°C above 85°C. For reliable long-term operation in industrial inverters, Renesas recommends limiting IF to 8–12 mA under normal conditions - matching the recommended operating range and ensuring LED lifetime exceeds 100,000 hours. This value is explicitly defined in the Absolute Maximum Ratings table on page 5 of the PS9306L-AX datasheet.

Does the PS9306L-AX support both sourcing and sinking gate current for IGBTs?

Yes, the PS9306L-AX supports bidirectional gate drive: its output stage can source up to 0.6 A (IOH) when VO is pulled high toward VCC, and sink up to 0.6 A (IOL) when VO is pulled low toward VEE. This capability is confirmed in the Absolute Maximum Ratings table (page 5) and Electrical Characteristics (page 6), where both IOH(PEAK) and IOL(PEAK) are specified at 0.6 A. The PS9306L-AX thus enables direct push-pull gate control without external transistors in many IGBT applications.

What safety certifications does the PS9306L-AX hold, and are they mandatory for use in industrial equipment?

The PS9306L-AX is UL approved (E72422), CSA approved (CA101391), and SEMKO approved (1115598). An optional VDE 0884-2 certification (DIN EN60747-5-2) is available via the PS9306L-V variant. These certifications are not merely optional - they are mandatory for CE marking in the EU (VDE), UL listing in North America, and CSA compliance in Canada. Industrial equipment sold globally must meet at least one of these standards to satisfy regulatory requirements for reinforced insulation and functional safety.

Can Pin 2 (NC) on the PS9306L-AX be used as a ground connection or left floating?

Pin 2 is designated NC (No Connection) and may be either left unconnected or tied directly to the input-side ground (cathode/GND). Renesas explicitly states in the Usage Cautions section (page 17) that it must never be used as a signal path, bypass node, or routing channel - doing so degrades internal noise immunity and may cause malfunction. Leaving it floating is acceptable, but grounding it improves mechanical stability and reduces potential for parasitic coupling in high-dv/dt layouts.

What is the minimum recommended decoupling capacitance for the PS9306L-AX VCC pin, and where should it be placed?

Renesas specifies a minimum 0.1 μF ceramic decoupling capacitor between VCC and VEE, placed within 10 mm of the PS9306L-AX package (Usage Cautions, page 17). This requirement ensures stable output transistor bias during fast switching events and suppresses supply rail bounce induced by 0.6 A peak current transients. Placement proximity is critical: exceeding 10 mm increases inductance, degrading CMR performance and potentially causing false triggering. X7R or better dielectric is recommended for stable capacitance across temperature.