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Vishay Semiconductor Opto Division VOFD341A-X019T
- Part No.:
- VOFD341A-X019T
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Isolators - Gate Drivers
- Package:
- 6-SOIC (0.268", 6.80mm Width)
- Datasheet:
-
VOFD341A-X019T.pdf
- Description:
- SMD-6 IGBT MOSFET DRIVER 3A
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
VOFD341A-X019T from Vishay Semiconductors is a high-speed, rail-to-rail output optocoupler gate driver IC designed for isolated IGBT and MOSFET gate control in motor inverters and UPS systems. It delivers 3.0 A peak output current, supports 15 V to 30 V supply range, achieves ≤200 ns propagation delay, and operates across –40 °C to +125 °C ambient temperature - enabling direct drive of up to 1200 V / 100 A IGBTs.
For engineers reviewing the VOFD341A-X019T datasheet, VOFD341A-X019T pinout, VOFD341A-X019T application, or VOFD341A-X019T equivalent, key selection criteria include common-mode transient immunity (35 kV/μs), UVLO thresholds (11.0–13.5 V turn-on), propagation delay matching (±100 ns max difference), and stretched SO-6 package compatibility with reinforced isolation per DIN EN 60747-5-5 (VDE 0884-5) option 1.
Technical Context
The VOFD341A-X019T integrates an AlGaAs LED optically coupled to a monolithic IC with a high-voltage power output stage featuring rail-to-rail drive capability. Its output stage operates from VCC = 15 V to 30 V referenced to VEE, supporting gate drive for both high-side and low-side configurations in half-bridge topologies.
It implements under-voltage lockout (UVLO) with 1.5 V hysteresis (11.2 V typical turn-on, 9.5 V turn-off), ensures precise timing via matched propagation delays (tPLH/tPHL ≤ 200 ns, PDD ≤ ±100 ns), and maintains signal integrity under fast common-mode transients up to 35 kV/μs at both logic-high and logic-low output states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 3.0 A maximum - sufficient for direct gate drive of 1200 V / 100 A IGBTs without external buffers |
| Propagation Delay | ≤200 ns - enables switching at up to 75 kHz with tight timing control in inverter PWM stages |
| CMR | 35 kV/μs minimum - suppresses noise-induced false triggering in high-dV/dt motor drive environments |
| Supply Range | 15 V to 30 V (VCC–VEE) - compatible with standard industrial gate drive rails and supports wide input voltage tolerance |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive, industrial inverter, and induction stove applications |
| UVLO Threshold | 11.0–13.5 V turn-on, 9.5–12.0 V turn-off - prevents unreliable gate drive during brown-out or startup conditions |
| Isolation Voltage | 6000 VPEAK (VIOTM) per DIN EN 60747-5-5 - meets reinforced insulation requirements for 1000 V AC mains-connected systems |
Pinout & Package
VOFD341A-X019T uses the stretched SO-6 (option 8) surface-mount package with 8 mm creepage and clearance distances, 0.4 mm minimum insulation thickness, and UL/cUL/VDE certification. The shielded construction enhances noise immunity and supports high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A (Anode) | LED input anode | Accepts 8–16 mA forward current to activate optical coupling; requires series resistor for current limiting |
| C (Cathode) | LED input cathode | Reference for input LED; tied to system ground or controller logic return |
| VO | Power output terminal | Delivers rail-to-rail gate drive voltage (VCC to VEE); connects directly to IGBT/MOSFET gate |
| VCC | High-side supply | Provides positive rail for output stage; must be ≥15 V and ≤30 V relative to VEE |
| VEE | Low-side reference | Serves as output stage ground reference; may be floating or tied to system power ground |
| Shield | Internal isolation shield | Connected to VEE externally to reduce capacitive coupling and improve CMR performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Drives IGBT gates from VEE to VCC with <0.3 V saturation drop, minimizing conduction losses and enabling full utilization of gate voltage swing |
| 35 kV/μs common-mode rejection | Ensures reliable operation in high-noise inverter legs where dV/dt exceeds 10 kV/μs near power switches |
| Matched propagation delays (±100 ns) | Reduces shoot-through risk in complementary half-bridge drivers by tightly aligning turn-on/turn-off timing between channels |
| Integrated UVLO with hysteresis | Prevents partial gate turn-on during undervoltage events, eliminating thermal runaway in power devices |
| VDE-certified reinforced isolation (option 1) | Meets DIN EN 60747-5-5 for functional safety in industrial drives requiring basic or reinforced insulation |
Applications
| AC Motor Inverter | Induction Cooktop |
|---|---|
Use Scenario: Three-phase inverter driving PMSM or induction motor in HVAC or industrial pump systems. IC Role / Device Role / Timing Role: Isolated high-side/low-side gate driver providing timing-controlled, noise-immune gate signals to 600–1200 V IGBTs. Use Value: 3.0 A peak output current and 200 ns propagation delay enable efficient 15–20 kHz PWM switching with minimal dead-time uncertainty. | Use Scenario: Resonant half-bridge inverter powering induction heating coil in domestic cooktops. IC Role / Device Role / Timing Role: High-CMR isolated driver controlling IGBT gates in high-dV/dt resonant tank circuits. Use Value: 35 kV/μs CMR prevents false triggering during rapid voltage transitions across transformer-coupled loads. |
| Industrial UPS | Brushless DC Drive |
Use Scenario: Online double-conversion UPS with bidirectional IGBT-based rectifier/inverter stages. IC Role / Device Role / Timing Role: Gate driver ensuring synchronized switching across multiple IGBT modules in parallel output stages. Use Value: –40 °C to +125 °C operating range and 6000 VPEAK isolation support long-term reliability in enclosed, thermally stressed UPS cabinets. | Use Scenario: Field-oriented control (FOC) drive for BLDC motors in robotics or e-bike controllers. IC Role / Device Role / Timing Role: Compact isolated driver delivering precise gate timing to discrete MOSFET half-bridges. Use Value: Stretched SO-6 footprint enables dense gate driver layout while maintaining >8 mm creepage for Class II safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar optocoupler gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ACPL-332J-000E | Lower peak output (2.5 A), 15 kV/μs CMR, SO-6 package without shield pin | Targeted at lower-power inverters (<600 V IGBTs); lacks VDE option and shield connection | Select when cost sensitivity outweighs need for 35 kV/μs CMR or VDE certification |
| SI8233AD-D-IS | Digital isolator-based driver (not optocoupler), 4 A peak, 35 kV/μs CMR, 5 V logic interface | Requires external level-shifting for 15–30 V gate drive; higher integration but different architecture | Choose for designs prioritizing longer lifetime and tighter propagation delay matching over optical isolation heritage |
Compared with ACPL-332J-000E and SI8233AD-D-IS, the VOFD341A-X019T uniquely combines VDE-certified reinforced isolation, integrated shield pin for CMR optimization, and 3.0 A rail-to-rail drive in a single stretched SO-6 package - making it optimal for high-reliability 1200 V IGBT systems where optical coupling and regulatory compliance are mandatory.
Availability
VOFD341A-X019T is available at Aetrix Electronics and suitable for industrial inverters, induction cooking systems, and uninterruptible power supplies requiring stable component supply, VDE-certified isolation, and high-CMR gate drive performance.
Supply support for VOFD341A-X019T 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
Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, optoelectronics, and passive devices, with emphasis on high-reliability, high-performance solutions for industrial and automotive markets.
The VOFD341A belongs to Vishay's high-speed optocoupler gate driver product line, engineered specifically for robust, isolated gate control of power semiconductors in harsh electrical environments such as motor drives and power conversion systems.
FAQ
What is the isolation rating of VOFD341A-X019T?
The VOFD341A-X019T features 6000 VPEAK transient isolation voltage (VIOTM) per DIN EN 60747-5-5 and 5000 VRMS withstand voltage per UL1577. Its stretched SO-6 (option 8) package provides ≥8 mm creepage and clearance, meeting reinforced insulation requirements for industrial 1000 V AC systems. This rating applies specifically to the X019T variant with VDE option 1.
Does VOFD341A-X019T require an external gate resistor?
Yes, VOFD341A-X019T requires an external gate resistor between VO and the IGBT/MOSFET gate to control rise/fall times and prevent oscillation. The datasheet specifies Rg = 10 Ω for switching characterization; actual value depends on device gate charge, desired dv/dt, and EMI constraints. No internal gate resistor is integrated.
Can VOFD341A-X019T drive both high-side and low-side IGBTs?
Yes, VOFD341A-X019T supports both configurations: VO outputs rail-to-rail (VCC to VEE), allowing direct connection to either high-side (with VEE = power ground) or low-side (with VEE = negative rail) IGBT gates. Its truth table confirms independent high/low state control based on LED input, and the shield pin must be tied to VEE to maximize CMR in either topology.
What is the purpose of the Shield pin on VOFD341A-X019T?
The Shield pin on VOFD341A-X019T is an internal conductive layer connected to the isolation barrier that reduces input-to-output capacitance and improves common-mode transient immunity. It must be externally connected to VEE to shunt displacement current away from the output stage - a requirement for achieving the rated 35 kV/μs CMR and preventing false triggering in noisy inverter applications.
Is VOFD341A-X019T compatible with 5 V logic microcontrollers?
VOFD341A-X019T accepts 8–16 mA LED forward current, which can be driven directly by 5 V microcontrollers using a series resistor (e.g., ~330 Ω for 10 mA). Its threshold forward current (IFLH) is 2.5–5 mA, ensuring reliable turn-on. However, the output stage requires 15–30 V (VCC–VEE) for gate drive - separate from logic supply - so level-shifting is not needed for input, but auxiliary supply is mandatory for output.
VOFD341A-X019T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- 6-SOIC (0.268", 6.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Optical Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 35kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 200ns, 200ns
- Pulse Width Distortion (Max):
- 70ns
- Rise / Fall Time (Typ):
- 35ns, 35ns
- Current - Output High, Low:
- 2.5A, 2.5A
- Current - Peak Output:
- 3A
- Voltage - Forward (Vf) (Typ):
- 1.37V
- Current - DC Forward (If) (Max):
- 25 mA
- Voltage - Output Supply:
- 15V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-SO Stretched
- Approval Agency:
- cUL, UL, VDE
VOFD341A-X019T FAQ
1.How can I place an order for VOFD341A-X019T through Aetrix?
Please submit a Request for Quotation (RFQ) for VOFD341A-X019T 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 VOFD341A-X019T reliable?
The price and inventory of VOFD341A-X019T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VOFD341A-X019T is usually 5 days.
3.What payment methods are accepted for VOFD341A-X019T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VOFD341A-X019T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VOFD341A-X019T?
VOFD341A-X019T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VOFD341A-X019T 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 VOFD341A-X019T?
For technical support, including VOFD341A-X019T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VOFD341A-X019T requirements.
6.How does Aetrix verify that VOFD341A-X019T is sourced from the original manufacturer or authorized distributors?
All VOFD341A-X019T 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 VOFD341A-X019T meets industry standards.
7.What is the process for return or replacement of VOFD341A-X019T?
All VOFD341A-X019T units undergo pre-shipment inspection (PSI). If there is an issue with VOFD341A-X019T, 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 VOFD341A-X019T part is unused and in its original packaging.
Return procedure for VOFD341A-X019T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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