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Infineon Technologies IRS21952SPBF
- Part No.:
- IRS21952SPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRS21952SPBF.pdf
- Description:
- IC GATE DRVR HALF BRD/LOW 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,410
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Product details
Overview
IRS21952SPBF from Infineon Technologies is a high-side and dual low-side gate driver IC designed for half-bridge and three-phase inverter topologies. It integrates one high-side (HO) and two low-side (LO1, LO2) outputs sharing common ground (COM), supports 600 V high-side offset (VB–VS), –600 V low-side offset (VSS), 5 V logic-compatible CMOS Schmitt inputs, and shoot-through prevention logic. Used in motor control inverters driving IGBTs or MOSFETs in industrial HVAC and appliance drives.
For engineers reviewing the IRS21952SPBF datasheet, IRS21952SPBF pinout, IRS21952SPBF application, or IRS21952SPBF equivalent, key selection considerations include high-side floating voltage tolerance (600 V), matched 330 ns propagation delays (ton/toff), –600 V low-side withstand capability, UVLO thresholds per supply rail (VCC/VBS/VDD), and SOIC-16 package thermal resistance (100 °C/W).
Technical Context
The IRS21952SPBF employs proprietary HVIC and latch-up immune CMOS technology to enable monolithic high-voltage isolation between high-side (VS-referenced) and low-side (COM-referenced) sections. Its level-shift architecture supports independent logic input referencing (HIN/LIN1/LIN2) with internal pull-down resistors and UVLO monitoring on all three supplies (VCC, VBS, VDD).
Shoot-through prevention logic enforces non-overlapping drive timing across HO, LO1, and LO2 outputs. The device tolerates dVS/dt and dVSS/dt transients up to 50 V/ns and operates across –40 °C to +125 °C ambient temperature with logic functionality maintained over VS = –5 V to 600 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| High-side offset voltage | 600 V (VB–VS): enables direct gate driving of high-side IGBTs/MOSFETs in 600 V bus systems |
| Low-side offset voltage | –600 V (VSS): supports robust operation with negative transient spikes on low-side return |
| Propagation delay (ton/toff) | 330 ns typ: ensures precise timing alignment for PWM-controlled half-bridge switching |
| Output current (Io+/Io–) | ±0.5 A: sufficient to charge/discharge gate capacitance of medium-power IGBTs (e.g., 50 A/600 V) |
| Logic input compatibility | 5 V CMOS/LSTTL: interfaces directly with microcontrollers and FPGA I/O without level-shifting |
| UVLO thresholds | VCCUV+ = 8.6 V, VBSUV+ = 8.6 V, VDDUV+ = 4.1 V: prevents erratic output during brown-out conditions |
| Thermal resistance (RθJA) | 100 °C/W: defines maximum power dissipation (1 W at TA ≤ 25 °C) before thermal shutdown |
Pinout & Package
IRS21952SPBF is housed in a 16-lead narrow-body SOIC package (body width 3.9 mm, JEDEC MS-012AC), surface-mount compatible with standard reflow profiles and rated for industrial temperature range (–40 °C to +125 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Logic supply input | 5 V logic rail for internal digital circuitry; monitored by VDDUV threshold |
| HIN | High-side logic input | CMOS Schmitt-triggered signal controlling HO output; includes internal pull-down |
| LIN1, LIN2 | Low-side logic inputs | Independent CMOS Schmitt inputs for LO1/LO2; each with internal pull-down |
| VSS | Logic supply return | Reference for VDD and logic inputs; withstands –600 V below COM |
| LO1, LO2 | Low-side gate drive outputs | Ground-referenced outputs driving low-side switch gates; ±0.5 A peak |
| VCC | Low-side power supply | 10–20 V supply for low-side output stage; UVLO protected |
| COM | Low-side power return | Common ground reference for VCC, LO1, LO2; connects to system power ground |
| HO | High-side gate drive output | Floating output referenced to VS; drives high-side switch gate with ±0.5 A |
| VB | High-side floating supply | Bootstrap or isolated supply for high-side driver stage (VS + 10 V to +20 V) |
| VS | High-side floating return | Reference for HO and VB; tracks switching node; withstands 600 V above COM |
Key Features
| Feature | Design Value |
|---|---|
| Shoot-through prevention logic | Hardware-enforced non-overlap between HO and LO1/LO2 transitions eliminates cross-conduction risk |
| Matched propagation delay | ≤50 ns mismatch (MT_on/MT_off) ensures synchronized switching across all three outputs |
| dV/dt immunity | Withstands 50 V/ns transients on VS and VSS nodes without false triggering or latch-up |
| Multi-rail UVLO | Independent undervoltage lockout on VCC, VBS, and VDD prevents partial operation during supply faults |
| CMOS Schmitt trigger inputs | Hysteresis >1.5 V ensures noise immunity in electrically noisy motor drive environments |
Applications
| Industrial Motor Drives | Appliance Inverters |
|---|---|
Use Scenario: Three-phase inverter for 0.75–2.2 kW PMSM/BLDC motors in HVAC compressors and pumps. IC Role / Device Role / Timing Role: High-side and dual low-side gate driver coordinating PWM signals to IGBT half-bridge legs with matched 330 ns delays. Use Value: Enables precise dead-time control and reduces switching losses via fast 25 ns rise/fall times and <50 ns channel-to-channel delay matching. | Use Scenario: Variable-speed drive in washing machine drum motor with integrated current sensing and thermal protection. IC Role / Device Role / Timing Role: Isolated gate driver providing 600 V high-side and –600 V low-side voltage tolerance for reliable operation under load dump and surge events. Use Value: Eliminates need for external optocouplers or discrete level shifters, reducing BOM count and PCB area in space-constrained appliance designs. |
| UPS Half-Bridge Stages | Industrial Power Supplies |
Use Scenario: Bi-directional DC–AC conversion stage in online UPS systems with 400 V DC bus. IC Role / Device Role / Timing Role: Gate driver managing synchronous rectification and inverter switching with independent UVLO on VCC/VBS/VDD rails. Use Value: Ensures fail-safe shutdown during AC line sag or battery voltage drop, preventing shoot-through in critical backup power applications. | Use Scenario: Auxiliary power supply for PLC I/O modules requiring isolated 24 V output with high reliability. IC Role / Device Role / Timing Role: High-side driver enabling active clamp or resonant topology control with 600 V floating capability and 125 °C junction rating. Use Value: Supports extended thermal margin in enclosed enclosures where ambient exceeds 85 °C, validated by RθJA = 100 °C/W and TJ max = 150 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side and dual low-side gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS21852SPBF | Same SOIC-16 package; lower 500 V high-side offset (VB–VS); identical 330 ns ton/toff and UVLO structure | Suitable only for ≤500 V bus systems; not recommended for 600 V industrial inverters | Select when system bus voltage is capped at 500 V and legacy footprint reuse is required |
| IR2110PbF | SOIC-16; 500 V high-side offset; no LIN2 channel (single low-side); higher 120 ns propagation delay mismatch | Lacks dual low-side support; requires external logic for third-phase control | Use only in single-phase or modified half-bridge designs where LO2 is unnecessary |
Compared with IRS21952SPBF, IRS21852SPBF offers reduced voltage rating but identical timing and layout compatibility, while IR2110PbF sacrifices dual low-side integration and timing precision for cost-sensitive, lower-voltage applications.
Availability
IRS21952SPBF is available at Aetrix Electronics and suitable for industrial motor drives, appliance inverters, UPS half-bridge stages, and industrial power supplies requiring stable component supply and long-term design continuity.
Supply support for IRS21952SPBF 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 leadership in high-voltage gate drivers and silicon carbide solutions.
The IRS21952SPBF belongs to Infineon's high-voltage IC (HVIC) product line, engineered for ruggedized monolithic gate driving in harsh industrial environments with high dV/dt noise and wide temperature ranges.
FAQ
What is the maximum allowable dV/dt on the VS pin?
The IRS21952SPBF is rated for dVS/dt transients up to 50 V/ns, verified under test conditions with CL = 1000 pF and TA = 25 °C. This specification ensures reliable operation during fast-switching events in 600 V bus systems without false triggering or latch-up, provided PCB layout minimizes parasitic inductance on the VS trace.
Can IRS21952SPBF drive both N-channel and P-channel MOSFETs?
The IRS21952SPBF is optimized for N-channel MOSFET and IGBT gate driving, with HO and LO outputs configured as low-side referenced (LO1/LO2) and high-side floating (HO) sources. It does not support direct P-channel high-side drive due to its bootstrap-based high-side architecture and lack of integrated charge pump for negative gate bias.
Is bootstrap capacitor sizing specified in the datasheet?
Yes - the recommended bootstrap capacitor value is 0.1 µF ceramic with X7R dielectric, placed within 5 mm of VB and VS pins. This value ensures sufficient charge retention during minimum duty cycle operation at 20 kHz switching frequency and accounts for quiescent VBS current (70–140 µA) and gate charge requirements of typical 50 A IGBTs.
Why is IRS21952SPBF marked "Not recommended for new designs"?
Infineon has designated IRS21952SPBF as not recommended for new designs due to obsolescence planning and the introduction of enhanced successors (e.g., IRS2185x series with improved ESD rating and tighter propagation delay matching). No direct pin-compatible replacement is offered, requiring redesign for new projects targeting long-term supply assurance.
IRS21952SPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge, Low-Side
- Channel Type:
- Independent
- Number of Drivers:
- 3
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 20V
- Logic Voltage - VIL, VIH:
- 0.6V, 3.5V
- Current - Peak Output (Source, Sink):
- 500mA, 500mA
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 25ns, 25ns
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
IRS21952SPBF FAQ
1.How can I place an order for IRS21952SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS21952SPBF 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 IRS21952SPBF reliable?
The price and inventory of IRS21952SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS21952SPBF is usually 5 days.
3.What payment methods are accepted for IRS21952SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS21952SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS21952SPBF?
IRS21952SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS21952SPBF 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 IRS21952SPBF?
For technical support, including IRS21952SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS21952SPBF requirements.
6.How does Aetrix verify that IRS21952SPBF is sourced from the original manufacturer or authorized distributors?
All IRS21952SPBF 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 IRS21952SPBF meets industry standards.
7.What is the process for return or replacement of IRS21952SPBF?
All IRS21952SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS21952SPBF, 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 IRS21952SPBF part is unused and in its original packaging.
Return procedure for IRS21952SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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