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Infineon Technologies IRS21814PBF
- Part No.:
- IRS21814PBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
IRS21814PBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,111
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Product details
Overview
IRS21814PBF 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 peak source/sink current, matched propagation delay ≤35 ns, and 3.3 V/5 V logic compatibility - used in half-bridge motor inverters and SMPS.
For engineers reviewing the IRS21814PBF datasheet, IRS21814PBF pinout, IRS21814PBF application, or IRS21814PBF equivalent, key selection criteria include bootstrap-compatible high-side operation up to +600 V, undervoltage lockout on both VCC and VB supplies, ±5 V logic/power ground offset tolerance, and dV/dt immunity up to 50 V/ns in PDIP package.
Technical Context
The IRS21814PBF integrates a ruggedized HVIC process with latch-immune CMOS logic to support simultaneous high-side and low-side drive in bridge topologies. Its floating channel uses pulse-transformed level shifting with internal UV detection and delay-matched propagation paths for HO and LO.
It operates with VCC = 10–20 V and VB = VS + 10 to VS + 20 V, tolerating VS transients from –5 V to +600 V. Logic inputs HIN/LIN reference VSS (dedicated pin), enabling precise noise margin control separate from COM, unlike the 8-lead IRS2181.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max voltage rating | 600 V high-side floating capability - supports direct connection to 400 V DC bus in motor drives |
| Output drive strength | 1.4 A source / 1.8 A sink - sufficient to switch 100 nC gate charge at ≤100 ns transition time |
| Propagation delay match | ≤35 ns difference between HO and LO turn-on/off - minimizes shoot-through risk in synchronous bridges |
| Logic supply range | 3.3 V or 5 V compatible with VSS-referenced inputs - eliminates level-shifter need in MCU-connected designs |
| UVLO thresholds | VCC/VB UV+ = 8.0–9.8 V, hysteresis ≥0.3 V - prevents erratic switching during brown-out conditions |
| dV/dt immunity | 50 V/ns (PDIP) - sustains reliable operation during fast-switching transients in high-di/dt power stages |
| Thermal resistance | RthJA = 75 °C/W (14-lead PDIP) - enables 1.6 W dissipation at TA ≤ +25 °C without forced cooling |
Pinout & Package
IRS21814PBF is housed in a 14-lead plastic DIP (PDIP) package with through-hole mounting and creepage optimized for 600 V isolation. Pin 1 is HIN; pin 14 is VS.
| 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 |
| LIN | Low-side logic input | In-phase control signal referenced to VSS; independent of COM for noise rejection |
| VSS | Logic ground reference | Dedicated ground for HIN/LIN inputs - isolates logic domain from power ground noise |
| COM | Low-side return path | Power ground for LO output and internal level-shift circuitry |
| LO | Low-side gate drive output | Drives N-MOSFET/IGBT gate with 1.8 A sink current; referenced to COM |
| VCC | Fixed supply for logic & low-side | 10–20 V input powering internal logic, UVLO, and LO driver stage |
| VB | High-side floating supply | Bootstrap-supplied rail for high-side driver; must be ≥VS + 10 V |
| HO | High-side gate drive output | Drives N-MOSFET/IGBT gate with 1.4 A source current; floats with VS |
| VS | High-side floating return | Switch node connection point; defines reference for HO and VB regulation |
Key Features
| Feature | Design Value |
|---|---|
| Floating channel architecture | Enables high-side drive in bootstrap configuration up to 600 V without external level shifters |
| Matched propagation delay | ≤35 ns mismatch between HO and LO ensures precise dead-time control in half-bridge PWM |
| Dedicated VSS pin | Separates logic ground from power ground (COM), reducing coupling noise into input signals |
| Robust dV/dt immunity | 50 V/ns tolerance prevents false triggering during fast high-side switching transitions |
| Independent UVLO per supply | VCC and VB each have dedicated undervoltage lockout with hysteresis - avoids partial enable faults |
Applications
| Motor Inverter Half-Bridge | Induction Cooktop Power Stage |
|---|---|
|
Use Scenario: Driving complementary N-channel MOSFETs in a 200–400 V DC-fed half-bridge for BLDC motor commutation. IC Role / Device Role / Timing Role: Dual-channel gate driver providing synchronized, shoot-through-protected HO/LO outputs with matched delays. Use Value: Eliminates discrete level-shifting components while maintaining <35 ns timing skew across temperature and supply variation. |
Use Scenario: Controlling resonant IGBTs in 20–50 kHz induction heating circuits with rapid burst-mode switching. IC Role / Device Role / Timing Role: High-noise-immunity gate driver handling fast VS transitions and high di/dt load currents. Use Value: 50 V/ns dV/dt immunity and dedicated VSS prevent false triggering during zero-crossing detection and burst gating. |
| Industrial SMPS LLC Converter | UPS Inverter Output Stage |
|
Use Scenario: Driving high-side/low-side MOSFETs in primary-side LLC resonant converter operating at 100–300 kHz. IC Role / Device Role / Timing Role: Gate driver with 1.4 A/1.8 A peak current supporting fast gate charging of >50 nC devices. Use Value: Low 40 ns rise / 20 ns fall times reduce switching losses and EMI generation in high-frequency operation. |
Use Scenario: Full-bridge inverter stage converting 380–400 V DC bus to 230 V AC output in online UPS systems. IC Role / Device Role / Timing Role: Isolated high-voltage gate driver enabling reliable 600 V-rated bridge switching with thermal derating margin. Use Value: RthJA = 75 °C/W (PDIP) allows sustained 1.6 W dissipation under convection cooling in sealed UPS enclosures. |
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 |
|---|---|---|---|
| IRS2181PBF | 8-lead PDIP; no VSS pin; inputs referenced to COM; no logic ground separation | Suitable only where logic and power grounds are tightly coupled; lacks VSS noise isolation | Select when board layout constraints prohibit 14-pin footprint and noise immunity is secondary |
| IR2110PbF | Slower propagation (250/350 ns typ), lower drive (2.5 A/2.5 A), no VSS pin, 16-pin PDIP | Used in legacy industrial drives; lacks modern dV/dt immunity and logic ground decoupling | Choose only for drop-in replacement in existing IR2110-based designs with relaxed timing/noise requirements |
Compared with IRS2181PBF and IR2110PbF, the IRS21814PBF delivers superior noise immunity via VSS isolation, tighter timing matching, and higher dV/dt tolerance - critical for high-density, high-efficiency inverter designs where layout-induced coupling cannot be fully controlled.
Availability
IRS21814PBF is available at Aetrix Electronics and suitable for motor inverters, induction cooktops, industrial SMPS, and UPS output stages requiring stable component supply and long-term industrial lifecycle support.
Supply support for IRS21814PBF 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 9001 and IATF 16949.
The IRS21814 belongs to Infineon's high-voltage gate driver product line, designed specifically for robust, high-efficiency half-bridge and full-bridge power conversion in motor control and industrial power systems.
FAQ
What is the purpose of the VSS pin on IRS21814PBF?
VSS is a dedicated logic ground reference for HIN and LIN inputs, electrically isolated from COM (power ground). This separation reduces noise coupling from high-di/dt power switching into logic inputs, improving noise immunity in dense PCB layouts. It enables clean 3.3 V/5 V logic interfacing without requiring external level shifters or ferrite beads.
Can IRS21814PBF drive IGBTs directly?
Yes - IRS21814PBF provides 1.4 A source and 1.8 A sink peak gate current, sufficient to drive standard 15–75 A IGBTs with gate charge ≤100 nC. Its 600 V floating capability and dV/dt immunity make it suitable for IGBT half-bridges in induction heating and UPS inverters, provided gate resistor values are selected to limit peak current within device ratings.
How does the bootstrap supply (VB) connect in a typical half-bridge?
VB connects to a bootstrap capacitor charged through a diode from VCC when LO is active and VS ≈ 0 V. During high-side conduction, the capacitor supplies gate drive for HO while floating at VS potential. The datasheet specifies VB must remain ≥VS + 10 V; minimum capacitance is 0.1 µF ceramic with low ESR to sustain voltage under 1.4 A peak load.
Is IRS21814PBF RoHS compliant and halogen-free?
Yes - IRS21814PBF is RoHS compliant (PbF suffix) and meets JEDEC J-STD-020 moisture sensitivity level MSL-3. It is also halogen-free per IEC 61249-2-21, with chlorine ≤900 ppm and bromine ≤900 ppm. Full compliance documentation, including material declarations and test reports, is available upon request from Aetrix Electronics.
IRS21814PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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:
- Through Hole
- Supplier Device Package:
- 14-DIP
IRS21814PBF FAQ
1.How can I place an order for IRS21814PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS21814PBF 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 IRS21814PBF reliable?
The price and inventory of IRS21814PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS21814PBF is usually 5 days.
3.What payment methods are accepted for IRS21814PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS21814PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS21814PBF?
IRS21814PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS21814PBF 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 IRS21814PBF?
For technical support, including IRS21814PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS21814PBF requirements.
6.How does Aetrix verify that IRS21814PBF is sourced from the original manufacturer or authorized distributors?
All IRS21814PBF 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 IRS21814PBF meets industry standards.
7.What is the process for return or replacement of IRS21814PBF?
All IRS21814PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS21814PBF, 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 IRS21814PBF part is unused and in its original packaging.
Return procedure for IRS21814PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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