Renesas PS9308L-V-AX

Overview

PS9308L-V-AX from Renesas Electronics is a 6-pin SDIP surface-mount photovoltaic gate driver IC optimized for IGBT and power MOSFET switching in high-noise industrial inverters and induction heating systems. It delivers 2.0 A peak output current, achieves ≤0.25 μs propagation delay (tPLH/tPHL), and provides ±25 kV/μs common-mode transient immunity with integrated UVLO protection and 5,000 V_r.m.s. isolation voltage.

For engineers reviewing the PS9308L-V-AX datasheet, PS9308L-V-AX pinout, PS9308L-V-AX application, or PS9308L-V-AX equivalent, this device is selected for high-CMR gate drive where fast turn-on/turn-off timing, robust under-voltage lockout hysteresis (1.3 V), and VDE 0884-5 certified reinforced isolation are required in motor drives and power conversion stages.

Technical Context

The PS9308L-V-AX integrates a GaAlAs LED input stage with a monolithic photo-diode, signal processing circuit, and high-current bipolar output transistor on a single chip. Its architecture enables direct gate driving without external amplification while maintaining galvanic isolation between control logic and power stage.

It operates with 15–30 V supply (VCC–VEE), supports 50 kHz maximum switching frequency, and features dual-threshold UVLO (10.8–13.4 V turn-on, 9.5–12.5 V turn-off) with 0.4–1.3 V hysteresis to prevent erratic switching during brownout conditions.

Key Specifications

Pinout & Package

PS9308L-V-AX uses a 6-pin Shrink Dual In-line Package (SDIP) with gull-wing surface-mount leads. Package dimensions: 9.7 mm × 3.7 mm × 3.5 mm (L×W×H), 1.27 mm lead pitch, 0.4 mm creepage distance, and 7 mm minimum outer creepage distance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ACPL-332J-500E and SI8261BBC-C-ISR, PS9308L-V-AX uniquely combines VDE-certified reinforced isolation, 2.0 A peak drive, and built-in hysteresis-based UVLO in a compact SDIP package-making it optimal for cost-sensitive, high-reliability industrial inverters where analog control and safety certification are mandatory.

Availability

PS9308L-V-AX is available at Aetrix Electronics and suitable for industrial inverter, induction heating, and UPS power stage applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for safety-critical designs.

Supply support for PS9308L-V-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 connectivity solutions for industrial, automotive, and enterprise markets.

The PS9308L-V-AX belongs to Renesas' high-CMR photovoltaic gate driver family, engineered specifically for robust IGBT/MOSFET driving in noisy, high-voltage power conversion systems demanding certified isolation and thermal resilience.

FAQ

What is the isolation rating and safety certification status of PS9308L-V-AX?

PS9308L-V-AX provides 5,000 V_r.m.s. isolation voltage rated per UL, CSA, and SEMKO standards. It also supports optional DIN EN 60747-5-5 (VDE 0884-5) certification for reinforced insulation. The PS9308L-V-AX variant is explicitly designated for VDE-compliant applications per the ordering information table in the datasheet, confirming its qualification for safety-critical industrial use cases.

Does PS9308L-V-AX require an external pull-up resistor on the VO pin?

No, PS9308L-V-AX features an active pull-down output stage and does not require an external pull-up resistor on VO. The VO terminal functions as an open-collector output capable of sinking up to 2.0 A peak current. When driving high-side IGBTs, VO connects directly to the gate, and the gate return path is managed through the external gate resistor and driver supply (VCC/VEE) configuration.

How does the UVLO function in PS9308L-V-AX affect gate drive behavior during supply dips?

The PS9308L-V-AX implements hysteresis-based UVLO with turn-on threshold of 10.8–13.4 V and turn-off threshold of 9.5–12.5 V. During supply dips, this prevents oscillatory gate switching by ensuring the output remains fully off until VCC–VEE recovers above the upper threshold, eliminating partial turn-on that could cause IGBT thermal stress or shoot-through in bridge configurations.

Can PS9308L-V-AX drive both N-channel and P-channel IGBTs or MOSFETs?

PS9308L-V-AX is configured as a low-side gate driver with VO referenced to VEE. It directly drives N-channel IGBTs/MOSFETs in low-side or emitter-follower configurations. For high-side N-channel devices, it requires bootstrap or isolated supply support. It is not designed for direct P-channel gate drive due to its output polarity and lack of high-side sourcing capability.

What is the recommended PCB layout practice for minimizing noise coupling into PS9308L-V-AX?

To minimize noise coupling, place a ≥1.0 μF bypass capacitor between VCC and VEE within 10 mm of PS9308L-V-AX pins 4 and 6. Keep input-side traces (pins 1–3) physically separated from high dv/dt power paths (e.g., IGBT collector/emitter). Pin 2 (NC) must remain unconnected or tied to input GND-never routed near noisy signals-as parasitic coupling can degrade internal noise margin.