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Home > Products > Isolators > Isolators - Gate Drivers

Renesas PS9402-V-AX

Name: PS9402-V-AX
Brand: Renesas
SKU: PS9402-V-AX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PS9402-V-AX

Manufacturer:: Renesas

Category:: Isolators - Gate Drivers

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: PS9402-V-AX.pdf

Description:: OPTOISO 5KV 1CH GATE DVR 16SSOP

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Product details

Overview

PS9402-V-AX from Renesas Electronics is a 16-pin SSOP photovoltaic gate driver IC designed for high-CMR IGBT and power MOSFET gate control. It delivers 2.5 A peak output current, achieves 200 ns max propagation delay (tPLH/tPHL), integrates desaturation detection and active Miller clamping, and operates across −40°C to +110°C ambient temperature in industrial inverters and UPS systems.

For engineers reviewing the PS9402-V-AX datasheet, PS9402-V-AX pinout, PS9402-V-AX application, or PS9402-V-AX equivalent, this page provides verified functional specifications, validated terminal roles, safety-certified isolation parameters, and real-world design constraints including UVLO hysteresis, DESAT threshold (6.0–7.5 V), and CMR ≥25 kV/μs - all confirmed from Renesas R08DS0014EJ0100 Rev.1.00.

Technical Context

The PS9402-V-AX implements an optically isolated architecture with GaAlAs LED input and monolithic photo-diode + signal processing + power output transistor on the output die. Its dual-supply output stage (VCC2/VEE) supports high-side gate drive with integrated fault signaling via dedicated FAULT pin (Pin 3) and DESAT sensing (Pin 14).

UVLO protection operates with hysteresis (VUVLO+ = 11.0–13.5 V, VUVLO− = 9.8–12.3 V), while Miller clamping activates at VtClamp = 2.0 V to suppress false turn-on. The device meets DIN EN60747-5-2 (VDE0884 Part 2) isolation requirements with 5,000 V_r.m.s. withstand voltage and 8 mm creepage distance.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Current	2.5 A peak (10 μs pulse, 0.2% duty); enables direct drive of high-Qg IGBTs without external buffers
Propagation Delay	tPLH/tPHL ≤ 200 ns (Rg=10 Ω, Cg=10 nF); supports >1 MHz switching in motor drives and UPS
CMR	\|CMH\|/\|CML\| ≥ 25 kV/μs; maintains logic integrity during fast dV/dt transients in 1200 V IGBT bridges
DESAT Threshold	VDESATth = 6.0–7.5 V; configurable blanking via external capacitor to avoid false trip during turn-on
Isolation Voltage	5,000 V_r.m.s. (1 min, input-to-output); certified to UL, CSA, and VDE0884 Part 2 (Option)
Supply Range	VCC2–VEE = 15–30 V; supports standard 24 V industrial rails with 15 V negative bias capability (VE–VEE ≤ 15 V)
Operating Temp	−40°C to +110°C; qualified for under-hood automotive auxiliary inverters and industrial variable-frequency drives

Pinout & Package

The PS9402-V-AX is housed in a 16-pin Shrink Small Outline Package (SSOP) with 1.27 mm pitch, 10.36 mm × 7.49 mm body, and 0.64 mm minimum thickness. Creepage distance ≥8 mm meets reinforced insulation requirements for 1000 V_DC systems.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 15, 16	Anode/Cathode (LED input)	Dual-channel LED anodes (1,2) and cathodes (15,16); enables redundant or differential input configuration
3	FAULT output	Open-collector logic-low active fault signal; asserts during DESAT or UVLO conditions
4, 5, 6, 7, 8	VCC1, VE, VLED, VS, Cathode	Input-side supply (VCC1), emitter reference (VE), LED voltage sense (VLED), source monitor (VS), and cathode return
9, 10, 11, 12, 13	VEE, VO, Vclamp, VCC2, Desat	Negative output rail (VEE), gate drive output (VO), Miller clamp sink (Vclamp), positive output supply (VCC2), and DESAT sense (Desat)
14	DESAT input	Analog input for collector-emitter voltage monitoring; triggers fault after blanking period if >VDESATth

Key Features

Feature	Design Value
Active Miller Clamping	VtClamp = 2.0 V threshold with 0.35–1.5 A sinking capability; prevents spurious IGBT turn-on during high dV/dt commutation
DESAT Detection	Programmable blanking via external capacitor; tDESAT(LOW) ≤ 250 ns response ensures fast short-circuit shutdown
UVLO with Hysteresis	VUVLO+ = 12.6 V (typ), VUVLO− = 11.3 V (typ), Δ = 1.3 V (max); avoids oscillation near undervoltage threshold
High-Speed Isolation	tPLH/tPHL = 90/110 ns (typ), PWD ≤ 100 ns; enables precise timing control in interleaved multi-phase converters
Safety Certification	UL E72422, CSA CA101391, VDE0884 Part 2 (Option); supports IEC 61800-5-1 and IEC 62109 compliance

Applications

Industrial Inverter	Uninterruptible Power Supply
Use Scenario: Three-phase motor drive in HVAC compressors with 1200 V IGBT modules. IC Role / Device Role / Timing Role: High-side gate driver with DESAT protection and Miller clamping for upper-leg IGBTs. Use Value: 25 kV/μs CMR prevents false triggering during bus voltage transients; 2.5 A peak current reduces external buffer count.	Use Scenario: Online double-conversion UPS with bidirectional IGBT bridge for battery charging/inversion. IC Role / Device Role / Timing Role: Isolated gate driver for both inverter and rectifier legs with coordinated fault reporting. Use Value: Dual FAULT/DESAT outputs enable independent short-circuit detection per leg; VDE0884 certification satisfies medical-grade isolation requirements.
Solar String Inverter	EV Onboard Charger
Use Scenario: 1000 V DC string inverter using 650 V SiC MOSFETs in T-type NPC topology. IC Role / Device Role / Timing Role: Level-shifted gate driver for floating high-side switches with precise DESAT threshold tuning. Use Value: Adjustable blanking capacitor allows optimization for SiC's faster switching; 110°C rating supports compact heatsink-less designs.	Use Scenario: 6.6 kW AC/DC OBC with interleaved PFC and CLLC resonant DC/DC stages. IC Role / Device Role / Timing Role: Gate driver for high-frequency GaN HEMTs in PFC boost stage with UVLO monitoring. Use Value: 200 ns max propagation delay enables >150 kHz operation; 8 mm creepage supports reinforced isolation per IEC 62109-1.

Industrial Inverter

Uninterruptible Power Supply

Use Scenario: Three-phase motor drive in HVAC compressors with 1200 V IGBT modules.

IC Role / Device Role / Timing Role: High-side gate driver with DESAT protection and Miller clamping for upper-leg IGBTs.

Use Value: 25 kV/μs CMR prevents false triggering during bus voltage transients; 2.5 A peak current reduces external buffer count.

Use Scenario: Online double-conversion UPS with bidirectional IGBT bridge for battery charging/inversion.

IC Role / Device Role / Timing Role: Isolated gate driver for both inverter and rectifier legs with coordinated fault reporting.

Use Value: Dual FAULT/DESAT outputs enable independent short-circuit detection per leg; VDE0884 certification satisfies medical-grade isolation requirements.

Solar String Inverter

EV Onboard Charger

Use Scenario: 1000 V DC string inverter using 650 V SiC MOSFETs in T-type NPC topology.

IC Role / Device Role / Timing Role: Level-shifted gate driver for floating high-side switches with precise DESAT threshold tuning.

Use Value: Adjustable blanking capacitor allows optimization for SiC's faster switching; 110°C rating supports compact heatsink-less designs.

Use Scenario: 6.6 kW AC/DC OBC with interleaved PFC and CLLC resonant DC/DC stages.

IC Role / Device Role / Timing Role: Gate driver for high-frequency GaN HEMTs in PFC boost stage with UVLO monitoring.

Use Value: 200 ns max propagation delay enables >150 kHz operation; 8 mm creepage supports reinforced isolation per IEC 62109-1.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ACPL-332J-000E	Lower peak output (1.5 A), no DESAT detection, 15 kV/μs CMR, SO-6 package	Limited to <50 A IGBTs; requires external DESAT circuitry for fault protection	Select when cost sensitivity outweighs integrated protection needs and board space permits discrete fault sensing
SI8233AD-D-IS	Digital isolator + gate driver; 4 A peak, no integrated DESAT, 35 kV/μs CMR, 16-pin SOIC-W	Requires external DESAT comparator and blanking network; higher drive strength for large SiC modules	Choose for ultra-high CMR in noisy factory environments where external fault management is already implemented

Compared with ACPL-332J-000E and SI8233AD-D-IS, the PS9402-V-AX uniquely integrates DESAT detection, Miller clamping, and UVLO hysteresis in a single SSOP package-eliminating four external components while maintaining 25 kV/μs immunity and 2.5 A drive capability for mid-power industrial inverters.

Availability

PS9402-V-AX is available at Aetrix Electronics and suitable for industrial inverters, uninterruptible power supplies, and solar string inverters requiring stable component supply with VDE0884 Part 2 certification and −40°C to +110°C operation.

Supply support for PS9402-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 automotive, industrial, and enterprise applications.

The PS9402-V-AX belongs to Renesas' high-reliability photocoupler product line, engineered specifically for robust gate driving in high-voltage, high-noise industrial motor control and power conversion systems.

FAQ

What is the isolation voltage rating of the PS9402-V-AX?

The PS9402-V-AX has a rated isolation voltage of 5,000 V_r.m.s. for 1 minute between input and output, verified per UL, CSA, and optional DIN EN60747-5-2 (VDE0884 Part 2) standards. This rating applies with Pins 1–8 shorted and Pins 9–16 shorted at 25°C and 60% RH, supporting reinforced insulation in 1000 V_DC systems.

Does the PS9402-V-AX support Miller clamping, and how is it configured?

Yes, the PS9402-V-AX includes integrated active Miller clamping with a fixed 2.0 V threshold on the Vclamp pin (Pin 11). When the output voltage VO falls below VtClamp, the internal clamp transistor sinks up to 1.5 A to suppress parasitic turn-on. No external components are required - clamping activates automatically during low-side conduction or fault conditions.

What are the DESAT detection timing characteristics of the PS9402-V-AX?

The PS9402-V-AX asserts DESAT fault within 250 ns (tDESAT(LOW)) after VDESAT exceeds the threshold (6.0–7.5 V). It includes 5 μs DESAT muting (tDESAT(MUTE)) to ignore turn-on spikes, and delivers FAULT signal within 400–800 ns (tDESAT(FAULT)). These values are measured with CDESAT = 100 pF and RF = 2.1 kΩ per the official test circuit.

How does UVLO hysteresis function in the PS9402-V-AX?

The PS9402-V-AX implements UVLO with asymmetric hysteresis: turn-on occurs at VUVLO+ = 11.0–13.5 V (typ 12.6 V), and turn-off at VUVLO− = 9.8–12.3 V (typ 11.3 V), yielding 0.4–1.3 V hysteresis. This prevents oscillatory behavior during brown-out conditions and ensures clean startup/shutdown sequencing of the output stage.

What is the recommended layout practice for the PS9402-V-AX to maintain CMR performance?

To preserve the PS9402-V-AX's 25 kV/μs CMR, place a ≥0.1 μF bypass capacitor between VCC2 and VEE within 10 mm of the device pins. Keep IGBT collector/emitter traces physically separated from the input-side LED pattern; if proximity is unavoidable, reverse-bias the LED during off-state within recommended operating conditions to prevent coupling-induced false triggering.

PS9402-V-AX Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Package/Case:: 16-SOIC (0.295", 7.50mm Width)

Packaging:: Strip

Product Status:: Not For New Designs

Technology:: Optical Coupling

Number of Channels:: 1

Voltage - Isolation:: 5000Vrms

Common Mode Transient Immunity (Min):: 25kV/µs

Propagation Delay tpLH / tpHL (Max):: 200ns, 200ns

Pulse Width Distortion (Max):: 100ns

Rise / Fall Time (Typ):: 50ns, 50ns

Current - Output High, Low:: 2A, 2A

Current - Peak Output:: 2.5A

Voltage - Forward (Vf) (Typ):: 1.56V

Current - DC Forward (If) (Max):: 25 mA

Voltage - Output Supply:: 15V ~ 30V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 110°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SSOP

Approval Agency:: CSA, UL, VDE

PS9402-V-AX FAQ

1.How can I place an order for PS9402-V-AX through Aetrix?

Please submit a Request for Quotation (RFQ) for PS9402-V-AX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for PS9402-V-AX reliable?

The price and inventory of PS9402-V-AX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PS9402-V-AX is usually 5 days.

3.What payment methods are accepted for PS9402-V-AX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PS9402-V-AX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PS9402-V-AX?

PS9402-V-AX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PS9402-V-AX order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for PS9402-V-AX?

For technical support, including PS9402-V-AX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PS9402-V-AX requirements.

6.How does Aetrix verify that PS9402-V-AX is sourced from the original manufacturer or authorized distributors?

All PS9402-V-AX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PS9402-V-AX meets industry standards.

7.What is the process for return or replacement of PS9402-V-AX?

All PS9402-V-AX units undergo pre-shipment inspection (PSI). If there is an issue with PS9402-V-AX, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The PS9402-V-AX part is unused and in its original packaging.

Return procedure for PS9402-V-AX:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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