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onsemi HCPL2611V
- Part No.:
- HCPL2611V
- Manufacturer:
- onsemi
- Category:
- Logic Output Optoisolators
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
HCPL2611V.pdf
- Description:
- OPTOISO 2.5KV OPN COLLECTOR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,027
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Product details
Overview
HCPL2611V from ON Semiconductor (formerly Fairchild) is a single-channel, high-speed logic gate optocoupler with strobable open-collector output, 10 MBit/s data rate, minimum 10 kV/µs common-mode transient immunity (CMTI), and 480 V working voltage - used for ground-loop isolation in industrial digital I/O, motor control feedback, and isolated UART interfaces.
For engineers reviewing the HCPL2611V datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed CMTI ≥10 kV/µs at 400 V, propagation delay ≤75 ns over –40°C to +85°C, fan-out of 8 into TTL loads, and VDE 0884 certification indicated by the "V" suffix.
Technical Context
The HCPL2611V integrates an AlGaAs LED optically coupled to a monolithic photodetector IC with built-in noise shield and logic-gate output stage. Its strobable enable input allows synchronous gating of output transitions, supporting time-critical isolation in encoder or PWM feedback paths.
It operates with 4.5–5.5 V supply, accepts 3–5 mA input threshold current, delivers 13 mA sink current (fan-out of 8), and maintains output low-level voltage ≤0.6 V at 13 mA load across full temperature range - all specified with no external pull-up required due to internal biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 10 MBit/s - supports RS-422/485 line receiver and isolated SPI clock domains up to 5 MHz. |
| CMTI (min) | 10 kV/µs at |VCM| = 400 V - ensures reliable operation in noisy motor drive or SMPS environments with fast dv/dt transients. |
| Propagation Delay | ≤75 ns (TPLH/TPHL) - enables precise timing in real-time control loops with sub-100 ns latency budget. |
| Fan-out | 8 TTL loads - drives multiple downstream gates without external buffer, reducing BOM count in PLC I/O modules. |
| Input Threshold | 3–5 mA - compatible with standard microcontroller GPIO outputs and 5 V logic families without series resistor recalculations. |
| Isolation Voltage | 2500 VRMS - certified per UL 1577 and VDE 0884 (via "V" suffix), enabling safety-rated barrier in Class I equipment. |
| Supply Range | 4.5–5.5 V - matches standard 5 V rail, eliminating need for auxiliary LDO in isolated power domains. |
Pinout & Package
HCPL2611V uses an 8-pin DIP package (0.300" wide) with gull-wing surface-mount option (S/SV/SDV variants); the "V" suffix confirms VDE 0884 certification and reinforced insulation construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (LED input) | Connects to 5 V logic source via current-limiting resistor; IF ≤5 mA typical for full-speed operation. |
| 2 | Cathode (LED input) | Ground reference for input side; forms isolated input loop with Pin 1. |
| 3 | No Connect | Internally unused; must remain unconnected per datasheet to avoid parasitic coupling. |
| 4 | No Connect | Internally unused; floating per design - no tie-to-ground or tie-to-VCC required. |
| 5 | GND (output side) | Reference for output logic domain; must be separated from input GND to maintain isolation barrier. |
| 6 | VO (output collector) | Open-collector output; requires external pull-up to VCC (Pin 8) for active-HIGH logic or wired-OR bus implementation. |
| 7 | VE (enable) | Active-HIGH strobe; asserts output only when ≥2.0 V applied - enables synchronized sampling in multi-channel systems. |
| 8 | VCC (output supply) | 5 V logic supply for detector side; bypassed with 0.1 µF capacitor to Pin 5 for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Strobable enable input | Allows synchronous gating of output transitions - critical for deterministic timing in encoder position capture and PWM dead-time monitoring. |
| Wired-OR open-collector output | Enables bus sharing across multiple isolated channels without contention, simplifying multi-sensor interface in industrial controllers. |
| VDE 0884-certified isolation | Reinforced insulation with 2500 VRMS withstand and ≤0.6 pF input-output capacitance - meets IEC 61800-5-2 for drive system safety. |
| 10 kV/µs CMTI (min) | Guaranteed immunity to fast common-mode transients in 400 V systems - eliminates false triggering in servo amplifier feedback paths. |
| Internal pull-up on enable | Eliminates external bias components for VE, reducing layout area and component count in space-constrained I/O modules. |
Applications
| Industrial Motor Control Feedback | Isolated UART Interface |
|---|---|
|
Use Scenario: Isolating encoder A/B/Z quadrature signals from a 400 V three-phase inverter's gate driver stage. IC Role / Device Role / Timing Role: HCPL2611V acts as a high-CMTI signal translator, preserving edge integrity of 1–5 MHz pulse trains while blocking ground potential differences >1 kV. Use Value: Prevents encoder miscounting caused by dv/dt-induced coupling, enabling accurate rotor position tracking under full-load switching conditions. |
Use Scenario: Galvanic isolation between MCU UART TX/RX lines and RS-232/RS-485 transceivers in building automation panels. IC Role / Device Role / Timing Role: HCPL2611V provides bidirectional logic-level isolation at up to 921.6 kbps, with matched TPLH/TPHL ensuring minimal skew in half-duplex protocols. Use Value: Eliminates ground-loop noise on serial buses, preventing frame errors and communication dropouts in distributed HVAC control networks. |
| Switching Power Supply Feedback | Programmable Logic Controller (PLC) Digital Input |
|
Use Scenario: Transmitting error amplifier output from secondary-side controller to primary-side PWM IC in offline AC/DC converters. IC Role / Device Role / Timing Role: HCPL2611V serves as a high-bandwidth analog-compatible isolator, conveying dynamic compensation signals with <75 ns latency and <35 ns pulse width distortion. Use Value: Maintains loop stability during load transients by preserving phase margin - critical for meeting EN 55022 conducted EMI limits. |
Use Scenario: Conditioning 24 V DC field sensor inputs (e.g., proximity switches) into 5 V logic for PLC CPU backplane. IC Role / Device Role / Timing Role: HCPL2611V functions as a robust input coupler with 480 V working voltage rating, rejecting surge events per IEC 61000-4-5 Level 3. Use Value: Enables direct connection to industrial sensors without external TVS or RC filtering, reducing input module bill-of-materials by 3–4 components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed logic gate optocoupler applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 6N137V | Same 8-pin DIP package and 10 MBit/s speed, but lower guaranteed CMTI (5 kV/µs min) and no VDE 0884 certification. | Suitable for non-safety-critical digital isolation where cost is prioritized over reinforced insulation. | Select 6N137V only if VDE compliance and ≥10 kV/µs CMTI are not required by end-equipment standards. |
| HCPL-0631 | Higher 15 MBd speed, 15 kV/µs CMTI, and wider 3–15 V VCC range, but requires external enable pull-up and lacks strobable output. | Better for high-noise medical imaging or test equipment requiring ultra-fast response and extended supply flexibility. | Choose HCPL-0631 when >10 MBd throughput or >5.5 V supply compatibility is mandatory, accepting added external components. |
Compared with 6N137V and HCPL-0631, HCPL2611V uniquely combines VDE 0884 certification, guaranteed 10 kV/µs CMTI, and integrated strobable enable - making it the optimal choice for safety-compliant industrial motion control where timing determinism and isolation integrity are co-dependent requirements.
Availability
HCPL2611V is available at Aetrix Electronics and suitable for industrial motor control feedback, isolated UART interfaces, switching power supply feedback, and PLC digital input modules requiring stable component supply and long-term lifecycle support.
Supply support for HCPL2611V 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
ON Semiconductor (formerly Fairchild Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The HCPL2611V belongs to ON Semiconductor's legacy high-speed optocoupler product line, engineered specifically for noise-immune digital signal isolation in harsh industrial environments where ground potential differences and fast transients compromise system reliability.
FAQ
What is the meaning of the "V" suffix in HCPL2611V?
The "V" suffix in HCPL2611V indicates VDE 0884 certification, confirming reinforced insulation with 2500 VRMS withstand voltage and compliance with IEC 60747-5-2. This certification is essential for safety-critical applications such as industrial drives and power supplies where regulatory approval is mandatory. HCPL2611V maintains this rating across its full operating temperature range of –40°C to +85°C.
Does HCPL2611V require an external pull-up resistor on the output?
Yes, HCPL2611V features an open-collector output (Pin 6), so an external pull-up resistor to VCC (Pin 8) is required to generate a logic HIGH level. Typical values range from 330 Ω to 4.7 kΩ depending on rise time and fan-out requirements. The device does not include an internal pull-up on the output - only on the enable input (Pin 7).
What is the maximum recommended input forward current for HCPL2611V?
The absolute maximum DC forward input current for HCPL2611V is 50 mA, but the recommended operating condition is ≤5 mA for reliable 10 MBit/s operation. At 5 mA, the device guarantees ≥13 mA output sink current (fan-out of 8) and maintains propagation delay ≤75 ns. Exceeding 5 mA offers no performance benefit and accelerates LED aging.
Can HCPL2611V operate with a 3.3 V supply on the output side?
No - HCPL2611V specifies a recommended VCC range of 4.5 V to 5.5 V. Operation below 4.5 V risks failure to meet fan-out, propagation delay, and VOL specifications. For 3.3 V logic domains, use a level-shifting buffer or select a 3.3 V–compatible optocoupler such as the ACPL-K37T, not HCPL2611V.
Is HCPL2611V still recommended for new designs?
No - HCPL2611V is marked "NOT RECOMMENDED FOR NEW DESIGN" in the official datasheet. While fully functional and supported for existing production, ON Semiconductor recommends migrating to newer alternatives like the FODM8071 or ACPL-K37T for improved power efficiency, smaller footprint, and extended lifetime. HCPL2611V remains available for legacy design refresh and repair.
HCPL2611V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Channels:
- 1
- Inputs - Side 1/Side 2:
- 1/0
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 10kV/µs
- Input Type:
- DC
- Output Type:
- Open Collector
- Current - Output / Channel:
- 50 mA
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 75ns, 75ns
- Rise / Fall Time (Typ):
- 50ns, 12ns
- Voltage - Forward (Vf) (Typ):
- 1.4V
- Current - DC Forward (If) (Max):
- 50mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-DIP
HCPL2611V FAQ
1.How can I place an order for HCPL2611V through Aetrix?
Please submit a Request for Quotation (RFQ) for HCPL2611V 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 HCPL2611V reliable?
The price and inventory of HCPL2611V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HCPL2611V is usually 5 days.
3.What payment methods are accepted for HCPL2611V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HCPL2611V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HCPL2611V?
HCPL2611V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HCPL2611V 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 HCPL2611V?
For technical support, including HCPL2611V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HCPL2611V requirements.
6.How does Aetrix verify that HCPL2611V is sourced from the original manufacturer or authorized distributors?
All HCPL2611V 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 HCPL2611V meets industry standards.
7.What is the process for return or replacement of HCPL2611V?
All HCPL2611V units undergo pre-shipment inspection (PSI). If there is an issue with HCPL2611V, 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 HCPL2611V part is unused and in its original packaging.
Return procedure for HCPL2611V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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