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Infineon Technologies IRS21814SPBF
- Part No.:
- IRS21814SPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRS21814SPBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,665
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Product details
Overview
IRS21814SPBF from Infineon Technologies is a high-voltage, high-speed dual-channel gate driver IC for N-channel MOSFETs and IGBTs, featuring independent high-side (HO) and low-side (LO) outputs with 600 V floating capability, 1.4 A/1.8 A source/sink current, matched propagation delay (≤35 ns), and 3.3 V/5 V logic compatibility. It enables half-bridge motor control in industrial inverters.
For engineers reviewing the IRS21814SPBF datasheet, IRS21814SPBF pinout, IRS21814SPBF application, or IRS21814SPBF equivalent, key selection criteria include bootstrap-compatible high-side operation up to 600 V, undervoltage lockout on both channels, ±5 V logic/power ground offset tolerance, and dV/dt immunity for noisy power stage environments.
Technical Context
The device integrates proprietary HVIC technology for monolithic high-voltage isolation between high-side and low-side channels. Its floating channel uses pulse-based level shifting and latch-immune CMOS design to sustain VS transients up to 600 V while maintaining logic integrity across -5 V to +600 V offset range.
Each channel includes independent UVLO with 0.7 V hysteresis (VCC/VBS thresholds: 8.2–9.8 V), programmable dead-time via external RC (not internal), and matched turn-on/turn-off propagation delays (typ. 180/220 ns) ensuring precise timing alignment critical for synchronous rectification and BLDC commutation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max. Floating Voltage | 600 V - supports high-side switching in 400 V AC line-fed inverters and PFC stages |
| Output Drive Current | 1.4 A source / 1.8 A sink - directly drives 10 nC gate charge MOSFETs at ≤100 kHz without external buffers |
| Propagation Delay Match | ≤35 ns - minimizes shoot-through risk in half-bridge configurations requiring tight timing alignment |
| Logic Supply Range | 3.3 V to 5 V compatible - interfaces directly with MCU GPIOs and isolated digital isolators |
| UVLO Threshold | VCC/VBS: 8.2–9.8 V rising, 7.4–9.0 V falling - prevents erratic switching during brown-out conditions |
| dV/dt Immunity | 50 V/ns - suppresses false triggering from fast-switching noise in high-di/dt power circuits |
| Operating Temperature | -40 °C to +125 °C - qualified for industrial motor drive and UPS ambient conditions |
Pinout & Package
IRS21814SPBF is housed in a 14-lead SOIC package with exposed thermal pad (RoHS-compliant, Pb-free). Pin assignment is validated per Infineon PD60262 datasheet Figure 5 (14-Lead SOIC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HIN | High-side logic input | In-phase control signal referenced to VSS; accepts 3.3 V/5 V CMOS/LSTTL levels |
| LIN | Low-side logic input | In-phase control signal referenced to VSS; independent of HIN for asymmetric PWM |
| VSS | Logic ground reference | Separate ground for inputs and level-shift logic; tolerant to ±5 V offset vs. COM |
| COM | Low-side power return | Reference node for LO output and VCC supply; connects to system power ground |
| LO | Low-side gate drive output | Drives N-MOSFET/IGBT gate with 1.8 A sink capability; referenced to COM |
| VCC | Fixed supply input | 10–20 V bias for logic and low-side driver; powers internal UVLO and level shift |
| VB | High-side floating supply | Bootstrap or isolated supply input for high-side driver; referenced to VS |
| HO | High-side gate drive output | Drives high-side N-MOSFET/IGBT gate with 1.4 A source capability; floats with VS |
| VS | High-side floating return | Return path for VB and HO; tracks switching node voltage up to 600 V |
Key Features
| Feature | Design Value |
|---|---|
| Floating channel architecture | Enables bootstrap-based high-side drive without external level-shifting components |
| Matched propagation delay | Ensures <35 ns skew between HO and LO edges-critical for minimizing dead-time uncertainty |
| Independent UVLO per channel | Prevents partial drive activation during supply dip-avoids shoot-through in bridge legs |
| Lower di/dt gate drive | Reduces EMI generation during switching transitions by limiting edge slew rate |
| Logic/power ground offset tolerance | ±5 V margin allows direct interface with isolated gate drivers and digital isolators |
Applications
| Industrial Motor Inverter | BLDC Motor Controller |
|---|---|
Use Scenario: 3-phase inverter driving 0.5–5 kW permanent magnet motors in HVAC compressors and pumps. IC Role / Device Role / Timing Role: Dual-channel gate driver providing synchronized HO/LO signals with matched delay for space-vector PWM modulation. Use Value: 600 V floating capability supports 400 V DC bus operation; 1.4 A/1.8 A drive strength ensures <100 ns MOSFET turn-on with 10 nC Qg. | Use Scenario: Sensorless commutation in e-bike and power tool controllers using trapezoidal or FOC algorithms. IC Role / Device Role / Timing Role: High-speed half-bridge driver delivering precise 120° phase-shifted gate pulses with minimal propagation skew. Use Value: 3.3 V logic compatibility enables direct connection to ARM Cortex-M0+ microcontrollers; dV/dt immunity prevents false triggering during hall-sensor-less back-EMF detection. |
| Solar Microinverter | UPS Half-Bridge Stage |
Use Scenario: DC–AC conversion stage in single-phase 250–500 W photovoltaic microinverters. IC Role / Device Role / Timing Role: High-side/low-side driver for interleaved half-bridge topology operating at 50–100 kHz switching frequency. Use Value: 600 V rating accommodates 450 V DC link; matched delay ensures clean zero-voltage switching transitions under variable irradiance. | Use Scenario: Bidirectional DC–AC conversion in online double-conversion UPS systems with 200–400 V DC bus. IC Role / Device Role / Timing Role: Robust gate driver for IGBT-based half-bridge handling load transients and battery backup switching. Use Value: -40 °C to +125 °C rating supports sealed UPS enclosures; UVLO hysteresis prevents oscillation during AC dropout recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2110PbF | 8-lead PDIP; no VSS pin; logic referenced to COM; higher propagation delay (220/300 ns) | Limited to lower-frequency (<60 kHz) applications due to slower timing and no separate logic ground | Select when cost-sensitive, lower-speed designs require legacy footprint compatibility |
| UCC27211D | 600 V rating; 4-A peak drive; no integrated high-side level shifter-requires external bootstrap diode/capacitor | Better suited for high-current, high-frequency (>200 kHz) resonant topologies where drive strength outweighs integration | Select when >2 A gate current is required and board space allows discrete bootstrap network |
Compared with IR2110PbF, IRS21814SPBF offers tighter timing control and logic isolation via VSS; versus UCC27211D, it trades peak current for full integration and noise immunity-making it optimal for industrial motor drives where reliability and layout simplicity are prioritized.
Availability
IRS21814SPBF is available at Aetrix Electronics and suitable for industrial motor inverters, BLDC controllers, solar microinverters, and UPS half-bridge stages requiring stable component supply across extended production lifecycles.
Supply support for IRS21814SPBF 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
The IRS21814SPBF belongs to Infineon's high-voltage gate driver product line, engineered specifically for robust half-bridge control in industrial motor drives, renewable energy converters, and uninterruptible power supplies.
FAQ
What is the purpose of the VSS pin on IRS21814SPBF?
VSS serves as the dedicated logic ground reference for HIN and LIN inputs and internal level-shifting circuitry. Unlike COM-which is the power return for LO and VCC-VSS tolerates up to ±5 V offset relative to COM, enabling noise-resilient interfacing with isolated microcontrollers or digital isolators without ground-loop coupling.
Can IRS21814SPBF drive IGBTs directly?
Yes-IRS21814SPBF is explicitly rated for IGBT gate drive, with 1.4 A source and 1.8 A sink current sufficient for typical 15–50 A IGBTs (Qg ≈ 20–50 nC). Its 600 V floating capability and dV/dt immunity make it suitable for hard-switched IGBT half-bridges in UPS and induction heating applications.
How does the bootstrap configuration work with IRS21814SPBF?
The VB pin accepts a bootstrap-supplied voltage (typically 12–15 V) referenced to VS. During LO conduction, a diode charges an external capacitor from VCC to VB. When HO turns on, VS rises to near bus voltage, and the capacitor sustains VB above VS-enabling continuous high-side drive. The datasheet specifies minimum bootstrap capacitance (e.g., 0.1 µF ceramic) and diode reverse recovery requirements.
Is IRS21814SPBF pin-compatible with IRS2181SPBF?
No-IRS21814SPBF uses a 14-lead SOIC package with VSS and separate COM pins, whereas IRS2181SPBF is an 8-lead SOIC with shared COM/VSS. Pin functions differ: IRS21814SPBF has dedicated VSS and COM, while IRS2181SPBF references all logic to COM. Layout and schematic changes are required for substitution.
IRS21814SPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 20V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.5V
- Current - Peak Output (Source, Sink):
- 1.9A, 2.3A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 40ns, 20ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
IRS21814SPBF FAQ
1.How can I place an order for IRS21814SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS21814SPBF 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 IRS21814SPBF reliable?
The price and inventory of IRS21814SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS21814SPBF is usually 5 days.
3.What payment methods are accepted for IRS21814SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS21814SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS21814SPBF?
IRS21814SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS21814SPBF 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 IRS21814SPBF?
For technical support, including IRS21814SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS21814SPBF requirements.
6.How does Aetrix verify that IRS21814SPBF is sourced from the original manufacturer or authorized distributors?
All IRS21814SPBF 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 IRS21814SPBF meets industry standards.
7.What is the process for return or replacement of IRS21814SPBF?
All IRS21814SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS21814SPBF, 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 IRS21814SPBF part is unused and in its original packaging.
Return procedure for IRS21814SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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