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Vishay Semiconductor Opto Division VO3120-X001
- Part No.:
- VO3120-X001
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- Isolators - Gate Drivers
- Package:
- 8-DIP (0.300", 7.62mm), 7 Leads
- Datasheet:
-
VO3120-X001.pdf
- Description:
- OPTOISO 5.3KV 1CH GATE DVR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,243
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Product details
Overview
VO3120-X001 from Vishay Semiconductors is a reinforced-insulation optocoupler gate driver IC designed for isolated IGBT and MOSFET control in high-voltage power stages. It delivers 2.5 A peak output current, supports 15 V to 32 V supply range, features 25 kV/μs common-mode transient immunity at 1500 V, and operates across –40 °C to +110 °C - enabling direct drive of up to 800 V/50 A IGBTs in motor inverter circuits.
For engineers reviewing the VO3120-X001 datasheet, VO3120-X001 pinout, VO3120-X001 application, or VO3120-X001 equivalent, key selection criteria include UVLO hysteresis (1.6 V), 0.2 μs max pulse width distortion, 0.5 V max VOL at 100 mA, reinforced DIN EN 60747-5-2 insulation rating, and DIP-8 package compatibility with industrial isolation requirements.
Technical Context
The VO3120-X001 integrates an AlGaAs LED input stage optically coupled to a high-voltage, high-current output stage with integrated under-voltage lockout (UVLO) and logic-level compatible input thresholds. Its output stage uses bipolar power transistors capable of sourcing/sinking ≥2.5 A peak into capacitive gate loads while maintaining fast switching (tPLH/tPHL ≤ 0.4 μs) and low propagation skew (PWD ≤ 0.2 μs).
Designed for galvanic isolation in noisy power-conversion environments, it achieves 25 kV/μs CMR in both high- and low-output states at VCM = 1500 V and provides reinforced insulation per DIN EN 60747-5-2 - critical for functional safety in AC motor drives and UPS systems where primary-side control must remain immune to high dV/dt transients on the secondary side.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | 2.5 A - sufficient to directly drive IGBT gates up to 800 V/50 A without external buffer stage |
| Common-Mode Rejection | 25 kV/μs min at VCM = 1500 V - ensures reliable operation in high-noise inverter half-bridges |
| Supply Voltage Range | 15 V to 32 V - supports wide-range DC bus-derived gate drive supplies in industrial SMPS and inverters |
| UVLO Threshold | 11 V to 13.5 V turn-on, 9.5 V to 12 V turn-off - prevents erratic switching during brown-out conditions |
| Output Low Voltage | 0.2 V max at 100 mA - minimizes conduction loss and ensures robust IGBT turn-off margin |
| Pulse Width Distortion | 0.2 μs max - maintains accurate PWM duty cycle fidelity across temperature and load variations |
| Operating Temperature | –40 °C to +110 °C - qualified for under-hood automotive auxiliary inverters and industrial motor drives |
Pinout & Package
DIP-8 package (7.62 mm lead pitch), UL/cUL and VDE-reinforced insulation rated, through-hole mounting with internal shielded cavity for enhanced noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4 | LED Anode/Cathode Common | Input LED return path; pins 1 and 4 must be connected together to LED common reference |
| 2 | LED Anode | Forward-biased input terminal requiring 7–16 mA IF for reliable turn-on |
| 3 | LED Cathode | Ground-referenced input terminal; reverse voltage limited to 5 V |
| 5, 6 | Output Emitter (VEE) | Low-side output reference; tied to IGBT emitter or MOSFET source for gate drive return |
| 7 | Output Collector (VO) | High-current output terminal sourcing up to 2.5 A to IGBT gate during turn-on |
| 8 | Supply (VCC) | Positive supply input for output stage; must be ≥11 V to avoid UVLO activation |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Insulation | Rated per DIN EN 60747-5-2 - enables single-component isolation barrier meeting IEC 61800-5-1 functional safety requirements |
| UVLO with Hysteresis | 1.6 V hysteresis window prevents oscillation near supply threshold during line sag or startup |
| High CMR Performance | 25 kV/μs minimum in both logic-high and logic-low states - suppresses false triggering from inverter shoot-through transients |
| Fast Switching | 0.1 μs typical rise/fall time with 10 Ω/10 nF gate load - supports >100 kHz PWM in high-efficiency motor drives |
| Low-Level Output Drive | 0.5 V max VOL at 100 mA - guarantees strong gate pull-down to prevent Miller-induced IGBT latch-up |
Applications
| AC Motor Inverter | Induction Cooktop |
|---|---|
|
Use Scenario: Three-phase inverter driving 400 V AC induction motor in HVAC compressor system. IC Role / Device Role / Timing Role: Isolated gate driver providing level-shifted, noise-immune turn-on/turn-off signals to six IGBTs in bridge topology. Use Value: 25 kV/μs CMR prevents false triggering during high dV/dt commutation events; UVLO ensures safe shutdown during DC bus undervoltage. |
Use Scenario: High-frequency resonant inverter powering 2.5 kW induction heating coil in domestic cooktop. IC Role / Device Role / Timing Role: Primary-side gate driver delivering precise timing-controlled pulses to half-bridge IGBTs operating at 20–50 kHz. Use Value: 0.2 μs pulse width distortion preserves PWM resolution at high frequencies; 2.5 A peak current enables fast gate charging without external buffers. |
| Industrial UPS | Brushless DC Motor Drive |
|
Use Scenario: Online double-conversion UPS with bidirectional IGBT-based rectifier/inverter stage handling 10 kVA load. IC Role / Device Role / Timing Role: Galvanically isolated gate driver interfacing microcontroller PWM outputs to high-side IGBTs in active front-end rectifier. Use Value: Reinforced insulation (5300 VRMS isolation) meets UL 1778 and IEC 62040-1 safety requirements; wide VCC range accommodates variable battery-backed supply. |
Use Scenario: 3 kW BLDC motor controller for electric power steering (EPS) with space-constrained PCB layout. IC Role / Device Role / Timing Role: Compact isolated driver for six-pack IGBT module, delivering synchronized gate signals with matched propagation delay. Use Value: Matched tPLH/tPHL ≤ 0.4 μs and low PWD ensure precise phase alignment across all three legs; –40 °C to +110 °C rating supports under-hood deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8261ACD-C-ISR | Capacitive isolation, 4 A peak output, 30 V max VDD, no UVLO hysteresis | Better suited for higher-speed digital isolator + external driver combos; lacks integrated power stage | Select when needing >2.5 A drive or tighter timing control via separate logic-level driver stage |
| HCPL-3120 | Legacy optocoupler, 2 A peak output, 15 kV/μs CMR, 0.5 V max VOL, same DIP-8 footprint | Lower drive strength and noise immunity; suitable only for ≤400 V/30 A IGBTs | Choose for cost-sensitive legacy designs where 2.5 A and 25 kV/μs are not required |
Compared with HCPL-3120, VO3120-X001 delivers 25% higher peak current and 67% better CMR - enabling smaller gate resistors and higher system efficiency in 600–800 V inverters; versus Si8261ACD-C-ISR, it integrates the power stage but trades off programmable dead-time and dual-channel flexibility for simplicity and reinforced safety certification.
Availability
VO3120-X001 is available at Aetrix Electronics and suitable for AC motor inverters, induction cooktops, and industrial uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and certified reinforced insulation.
Supply support for VO3120-X001 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 reliability, power efficiency, and safety-critical performance.
The VO3120 series belongs to Vishay's high-isolation optocoupler product line, engineered specifically for robust gate driving in industrial motor controls, renewable energy inverters, and high-noise power conversion systems.
FAQ
What is the isolation voltage rating of VO3120-X001?
The VO3120-X001 has a 5300 VRMS isolation test voltage (1 s duration) and is reinforced-insulation rated per DIN EN 60747-5-2. It also meets UL 1577 and cUL standards. This rating applies to the VO3120-X001 DIP-8 package with standard creepage and clearance distances of 7 mm, making it suitable for functional safety applications up to 800 V mains-referenced systems.
Does VO3120-X001 support both high-side and low-side IGBT driving?
Yes, VO3120-X001 supports low-side driving by default (VEE referenced to IGBT emitter), and high-side driving when used with floating supply configuration - its output stage is designed for common-emitter operation with VCC referenced to the IGBT collector potential. The VO3120-X001 datasheet confirms operation with VCC–VEE up to +35 V, enabling bootstrap or isolated DC/DC-based high-side biasing.
What is the minimum input LED current required to reliably turn on VO3120-X001?
The VO3120-X001 requires a minimum forward LED current of 7 mA (per recommended operating conditions) to guarantee turn-on across temperature and process variation. The threshold input current (IFLH) is specified at ≤5 mA maximum, but design margin mandates ≥7 mA at TA = +110 °C to ensure robust switching in worst-case conditions - this value is explicitly validated in the VO3120-X001 datasheet Section 4.
Can VO3120-X001 drive SiC MOSFETs directly?
The VO3120-X001 can drive low-to-mid-power SiC MOSFETs (e.g., ≤1200 V/40 A) in hard-switching applications, provided gate charge requirements fall within its 2.5 A peak current and 10 nF load capability. However, for high-speed, high-Qg SiC devices requiring >5 A peak or sub-100 ns rise times, an external buffer stage is recommended - the VO3120-X001 datasheet specifies performance limits under 10 Ω/10 nF test conditions, not full SiC optimization.
Is VO3120-X001 RoHS compliant and halogen-free?
Yes, VO3120-X001 complies with RoHS Directive 2011/65/EU and is halogen-free per Vishay's material categorization standard (document 99912). The "X001" suffix denotes standard DIP-8 packaging with UL/cUL certification and conforms to JEDEC J-STD-020 moisture sensitivity level (MSL) 1 - suitable for standard reflow or wave soldering without baking.
VO3120-X001 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm), 7 Leads
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Optical Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 5300Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 400ns, 400ns
- Pulse Width Distortion (Max):
- 200ns
- Rise / Fall Time (Typ):
- 100ns, 100ns
- Current - Output High, Low:
- 2.5A, 2.5A
- Current - Peak Output:
- 2.5A
- Voltage - Forward (Vf) (Typ):
- 1.6V (Max)
- Current - DC Forward (If) (Max):
- 25 mA
- Voltage - Output Supply:
- 15V ~ 32V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 110°C
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-DIP
- Approval Agency:
- cUR, UR, VDE
VO3120-X001 FAQ
1.How can I place an order for VO3120-X001 through Aetrix?
Please submit a Request for Quotation (RFQ) for VO3120-X001 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 VO3120-X001 reliable?
The price and inventory of VO3120-X001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VO3120-X001 is usually 5 days.
3.What payment methods are accepted for VO3120-X001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VO3120-X001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VO3120-X001?
VO3120-X001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VO3120-X001 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 VO3120-X001?
For technical support, including VO3120-X001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VO3120-X001 requirements.
6.How does Aetrix verify that VO3120-X001 is sourced from the original manufacturer or authorized distributors?
All VO3120-X001 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 VO3120-X001 meets industry standards.
7.What is the process for return or replacement of VO3120-X001?
All VO3120-X001 units undergo pre-shipment inspection (PSI). If there is an issue with VO3120-X001, 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 VO3120-X001 part is unused and in its original packaging.
Return procedure for VO3120-X001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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