My Inquiry
My Account
Vishay Semiconductor Opto Division VOD3120AB-VT2
- Part No.:
- VOD3120AB-VT2
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SMD, Gull Wing
- Datasheet:
-
VOD3120AB-VT2.pdf
- Description:
- OPTOISO 5.3KV 1CH GATE DVR 8SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,169
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VOD3120AB-VT2 from Vishay Semiconductors is a high-speed, reinforced-insulation optocoupler gate driver IC designed for isolated IGBT and MOSFET gate control in industrial inverters and motor drives. It delivers 2.5 A peak output current, operates across 15 V to 30 V supply range, and features 50 kV/μs common-mode transient immunity - enabling robust operation in noisy 1200 V power stages.
For engineers reviewing the VOD3120AB-VT2 datasheet, VOD3120AB-VT2 pinout, VOD3120AB-VT2 application, or VOD3120AB-VT2 equivalent, key selection criteria include its rail-to-rail output stage, UVLO thresholds (11.0–13.5 V turn-on / 9.5–12.0 V turn-off), -40 °C to +105 °C operating range, and VDE-reinforced insulation certification for safety-critical isolation.
Technical Context
The VOD3120AB-VT2 integrates an AlGaAs LED optically coupled to a monolithic IC with complementary high- and low-side power output transistors. Its output stage uses bipolar technology to achieve rail-to-rail drive capability and fast switching (tPLH/tPHL ≤ 0.5 μs) under 10 Ω gate resistance and 25 nF load conditions.
It incorporates undervoltage lockout (UVLO) with 1.5 V hysteresis and supports safe gate driving via reinforced insulation rated to 6000 VPEAK per DIN EN 60747-5-5. The device is optimized for direct drive of up to 1200 V / 100 A IGBTs and requires no external bootstrap components in half-bridge configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 2.5 A - sufficient to directly drive 100 A IGBT gates without external buffer stage |
| Supply Voltage Range | 15 V to 30 V - compatible with standard industrial DC bus rails and gate driver supplies |
| Common-Mode Immunity | 50 kV/μs - ensures reliable operation during fast voltage transients in motor inverter legs |
| Propagation Delay | ≤ 0.5 μs - enables precise timing control in high-frequency PWM applications up to 15 kHz |
| UVLO Threshold | 11.0–13.5 V turn-on / 9.5–12.0 V turn-off - prevents erratic gate behavior during brown-out conditions |
| Isolation Rating | 6000 VPEAK transient withstand - certified to DIN EN 60747-5-5 for reinforced insulation |
| Operating Temperature | -40 °C to +105 °C - suitable for enclosed industrial enclosures and induction stove environments |
Pinout & Package
SMD-8 package with 180° orientation (tape-and-reel, 1000 pcs/reel); creepage and clearance >7 mm; insulation thickness >0.4 mm; RoHS-compliant, MSL Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED input anode | Connects to microcontroller GPIO or logic-level signal through current-limiting resistor |
| 2 (Cathode) | LED input cathode | Ground reference for input side; defines forward current path (IF = 7–16 mA typical) |
| 3 (NC) | No connect | Internally unconnected; must remain floating - no PCB trace or component connection |
| 4 (NC) | No connect | Internally unconnected; must remain floating - no PCB trace or component connection |
| 5 (VO) | Output driver terminal | High-current gate drive output; connects directly to IGBT/MOSFET gate; rail-to-rail swing |
| 6 (VCC) | Positive supply | Primary power for output stage; 15–30 V; decoupled with 0.1 µF ceramic capacitor |
| 7 (VEE) | Negative supply / return | Output stage ground reference; tied to emitter/source or negative rail; enables bipolar drive |
| 8 (Shield) | Internal shield terminal | Connected to primary-side ground to suppress capacitive coupling and improve CMR |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output stage | Delivers full VCC-to-VEE swing at 2.5 A peak, eliminating need for level-shifting or external drivers |
| 50 kV/μs common-mode rejection | Prevents false triggering during fast dV/dt events in high-power inverter bridges |
| VDE-reinforced insulation | Enables single-component isolation barrier meeting IEC 61800-5-1 and UL 61800-5-1 safety requirements |
| Integrated UVLO with hysteresis | Ensures gate remains off until supply stabilizes above 11.0 V, preventing partial turn-on and shoot-through |
| 180° SMD-8 orientation | Optimized tape-and-reel placement for automated pick-and-place; reduces board layout asymmetry vs. standard SMD-8 |
Applications
| Industrial Motor Inverter | Induction Cooking System |
|---|---|
|
Use Scenario: Driving IGBT half-bridge in 3-phase variable-frequency drive for HVAC compressors. IC Role / Device Role / Timing Role: Isolated gate driver providing timing-controlled high- and low-side switching with <0.5 μs propagation delay matching. Use Value: Enables 15 kHz PWM operation with minimal dead-time uncertainty and immunity to bus dV/dt exceeding 30 kV/μs. |
Use Scenario: Controlling resonant half-bridge IGBTs in 20–50 kHz induction stove power stage. IC Role / Device Role / Timing Role: High-speed, isolated gate driver delivering 2.5 A peak current to rapidly charge/discharge IGBT gates. Use Value: Reduces switching losses by minimizing gate transition time while maintaining safe shoot-through margin under thermal stress. |
| Uninterruptible Power Supply | Industrial AC Drive |
|
Use Scenario: Gate driving for bidirectional IGBT modules in online double-conversion UPS inverters. IC Role / Device Role / Timing Role: Reinforced-isolation driver ensuring functional safety during grid fault transitions and islanding detection. Use Value: Meets 6000 VPEAK transient isolation requirement for UL 1741 SA and IEC 62109 compliance. |
Use Scenario: Direct gate drive for 1200 V / 75 A IGBTs in open-loop industrial conveyor drives. IC Role / Device Role / Timing Role: Standalone optocoupler-based driver replacing discrete photocoupler + transistor stage. Use Value: Eliminates 4 external components per channel, reducing BOM count and improving reliability over temperature. |
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 current (2.0 A), 30 kV/μs CMR, SO-6 package | Limited to ≤600 V IGBTs; not certified to VDE 0884-5 | Select when cost sensitivity outweighs 1200 V system requirements and VDE certification is not mandated. |
| SI8261BBC-C-ISR | Digital isolator with integrated gate driver; 4 A peak, 35 kV/μs CMR, 5 kVRMS isolation | No internal UVLO; requires external supply monitoring; higher EMI susceptibility than optical coupling | Choose for systems requiring programmable dead-time or dual-channel synchronization, accepting trade-offs in noise immunity. |
Compared with ACPL-332J-000E and SI8261BBC-C-ISR, the VOD3120AB-VT2 provides superior common-mode immunity and VDE-reinforced certification for 1200 V inverter designs, while offering simpler biasing and inherent galvanic isolation without external supervision circuitry.
Availability
VOD3120AB-VT2 is available at Aetrix Electronics and suitable for industrial motor inverters, induction cooking systems, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.
Supply support for VOD3120AB-VT2 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, sensors, and optoelectronics with emphasis on reliability, precision, and high-voltage performance.
The VOD3120A series was developed specifically for isolated gate driving in high-noise, high-dV/dt industrial power conversion systems - targeting motor drives, UPS, and induction heating where safety-certified optical isolation and 2.5 A drive strength are critical.
FAQ
What is the maximum gate capacitance the VOD3120AB-VT2 can drive while maintaining specified propagation delay?
The VOD3120AB-VT2 is characterized with a 25 nF capacitive load and 10 Ω gate resistance, achieving tPLH/tPHL ≤ 0.5 μs. At 2.5 A peak current, it can fully charge/discharge gate capacitances up to ~150 nF within 100 ns (per I = C·dv/dt). For larger loads, external gate resistors must be adjusted to maintain safe dv/dt and avoid overshoot - the VOD3120AB-VT2 itself does not limit based on capacitance alone but on output energy delivery and thermal dissipation.
Does the VOD3120AB-VT2 require external pull-up or pull-down resistors on the VO pin?
No, the VOD3120AB-VT2 does not require external pull-up or pull-down resistors on the VO pin. Its output stage is a complementary bipolar driver capable of actively sourcing and sinking 2.5 A, providing rail-to-rail voltage swing between VCC and VEE. External resistors would degrade switching speed and increase power loss - the device is designed for direct gate connection with only local 0.1 µF decoupling at VCC/VEE.
How does the "VT2" suffix in VOD3120AB-VT2 affect safety certification and packaging?
The "VT2" suffix indicates VDE certification (reinforced insulation per DIN EN 60747-5-5) plus tape-and-reel packaging with 180° orientation. This differs from "VT" (VDE + standard SMD-8 orientation) and "T2" (non-VDE SMD-8, 180° orientation). Only VT and VT2 variants carry the VDE logo and meet 6000 VPEAK transient withstand; all share identical electrical specs and thermal ratings.
Can the VOD3120AB-VT2 drive both N-channel and P-channel IGBTs or MOSFETs?
The VOD3120AB-VT2 is optimized for N-channel IGBTs and MOSFETs in high-side or low-side configurations using VCC referenced to collector/drain and VEE referenced to emitter/source. It cannot directly drive P-channel devices in standard configurations because its output stage lacks the required negative voltage swing relative to source. For P-channel use, external level-shifting circuitry is required - the VOD3120AB-VT2 itself is not designed for that topology.
What is the role of Pin 8 (Shield) in the VOD3120AB-VT2, and how should it be connected?
Pin 8 (Shield) connects to an internal electrostatic shield between the LED and photodetector die. It must be connected to the input-side ground (anode/cathode reference plane) to minimize capacitive coupling and maximize common-mode transient immunity. Leaving Pin 8 floating degrades CMR performance; connecting it to output ground creates a leakage path and violates isolation integrity. Proper shielding improves |CMH| and |CML| by up to 15 kV/μs in validated layouts.
VOD3120AB-VT2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- 8-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Optical Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 5300Vrms
- Common Mode Transient Immunity (Min):
- 35kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 500ns, 500ns
- Pulse Width Distortion (Max):
- 70ns
- Rise / Fall Time (Typ):
- 35ns, 35ns
- Current - Output High, Low:
- 2.5A
- Current - Peak Output:
- 2.5A
- Voltage - Forward (Vf) (Typ):
- 1.37V
- Current - DC Forward (If) (Max):
- 20 mA
- Voltage - Output Supply:
- 15V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SMD
- Approval Agency:
- CQC, cUL, UL, VDE
VOD3120AB-VT2 FAQ
1.How can I place an order for VOD3120AB-VT2 through Aetrix?
Please submit a Request for Quotation (RFQ) for VOD3120AB-VT2 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 VOD3120AB-VT2 reliable?
The price and inventory of VOD3120AB-VT2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VOD3120AB-VT2 is usually 5 days.
3.What payment methods are accepted for VOD3120AB-VT2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VOD3120AB-VT2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VOD3120AB-VT2?
VOD3120AB-VT2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VOD3120AB-VT2 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 VOD3120AB-VT2?
For technical support, including VOD3120AB-VT2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VOD3120AB-VT2 requirements.
6.How does Aetrix verify that VOD3120AB-VT2 is sourced from the original manufacturer or authorized distributors?
All VOD3120AB-VT2 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 VOD3120AB-VT2 meets industry standards.
7.What is the process for return or replacement of VOD3120AB-VT2?
All VOD3120AB-VT2 units undergo pre-shipment inspection (PSI). If there is an issue with VOD3120AB-VT2, 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 VOD3120AB-VT2 part is unused and in its original packaging.
Return procedure for VOD3120AB-VT2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VOD3120AB-VT2 Tags
.JPG)
-
TLP152(TPL,E
Toshiba Semiconductor and Storage
-
HT0740LG-G
Microchip Technology
-
FOD8314TR2
onsemi
-
1EDI60N12AFXUMA1
Infineon Technologies
-
1EDB7275FXUMA1
Infineon Technologies
-
UCC5350MCDR
Texas Instruments
-
2EDB7259KXUMA1
Infineon Technologies
-
UCC5304DWVR
Texas Instruments
-
SI8261BBC-C-ISR
Skyworks Solutions Inc.
-
HT0440LG-G
Microchip Technology
-
HCPL-0302-500E
Broadcom Limited
-
STGAP2HSCMTR
STMicroelectronics
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
