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Infineon Technologies AUIRS2191S
- Part No.:
- AUIRS2191S
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AUIRS2191S.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,757
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Product details
Overview
AUIRS2191S from Infineon Technologies (formerly International Rectifier) is a high-voltage, high-speed dual-channel gate driver IC for automotive-grade N-channel MOSFETs and IGBTs, featuring independent high-side (HO) and low-side (LO) outputs, 600V offset tolerance, 3.5A peak output current per channel, and matched 90ns propagation delays. It enables robust half-bridge control in high-frequency DC-DC converters up to 600V bus voltage.
For engineers reviewing the AUIRS2191S datasheet, AUIRS2191S pinout, AUIRS2191S application, or AUIRS2191S equivalent, key selection criteria include bootstrap-compatible floating channel operation, AEC-Q100 qualification, 3.3V/5V/15V logic compatibility, undervoltage lockout on both channels, and dV/dt immunity in harsh automotive environments.
Technical Context
The AUIRS2191S integrates two independent gate drive channels with HVIC-based level-shifting for the high-side output, enabling operation with VS referenced up to +600V relative to COM. Its CMOS Schmitt-triggered inputs support 3.3V–15V logic levels, and internal UVLO thresholds (8.9V ±0.7V for VBS/VCC) prevent erratic switching during supply brownouts.
Propagation delay matching ≤25ns between HO and LO ensures precise dead-time control in high-frequency synchronous rectification. The device uses latch-immune monolithic construction and features ESD protection (HBM 1000V, CDM 1000V) and MSL3 moisture sensitivity rating for reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOFFSET | 600V max - supports high-side switching in 400–600V DC bus systems like EV onboard chargers |
| VOUT Range | 10–20V - configurable gate drive voltage for optimal MOSFET/IGBT turn-on loss vs. speed trade-off |
| IO+ / IO− | 3.5A typical - sufficient peak current to charge/discharge 10nF gate capacitance in <100ns |
| tON / tOFF | 90ns typical - enables >1MHz switching frequency with tight timing control |
| Delay Matching | ≤25ns max - minimizes shoot-through risk in half-bridge topologies without external dead-time circuitry |
| Logic Compatibility | 3.3V/5V/15V - interfaces directly with MCU GPIO, DSP, or isolated digital controllers |
| UVLO Threshold | 8.9V ±0.7V - prevents partial turn-on of power devices during startup or fault conditions |
Pinout & Package
16-Lead SOIC Narrow Body (0.150" wide), RoHS-compliant, MSL3 rated. Pinout validated per IRF datasheet Rev. Nov 2013, Figure 1 and Lead Assignments page 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Low-side gate supply input | Provides regulated 10–20V bias for LO channel and logic core; requires local 0.1µF + 10µF decoupling |
| COM | Low-side reference ground | Common return path for LO output and logic ground; must be star-connected to minimize noise coupling |
| LO | Low-side gate driver output | Drives N-MOSFET/IGBT gate referenced to COM; capable of 3.5A sink/source |
| VS | Floating high-side source reference | Connects to switch node; defines return for HO channel; tolerates −5V to +600V transients |
| VB | Floating high-side bootstrap supply | Accepts 10–20V from bootstrap capacitor; powers HO driver stage referenced to VS |
| HO | High-side gate driver output | Drives N-MOSFET/IGBT gate referenced to VS; matches LO timing within 25ns |
| HIN | High-side input control | CMOS Schmitt-triggered, active-high; 3.3V–15V compatible; internal pull-down ensures default OFF state |
| LIN | Low-side input control | CMOS Schmitt-triggered, active-high; independent of HIN; enables asymmetric PWM or phase-shifted control |
| VSS | Logic ground reference | Internal logic supply return; tied to COM externally but electrically isolated in HVIC structure |
Key Features
| Feature | Design Value |
|---|---|
| Floating channel with 600V offset capability | Enables direct high-side drive in buck, boost, and half-bridge topologies without external level shifters |
| Matched HO/LO propagation delay (≤25ns) | Reduces need for external dead-time insertion, simplifying layout and improving efficiency at >500kHz |
| Independent UVLO on VCC and VB supplies | Prevents partial conduction during bootstrap capacitor discharge or low-side supply sag |
| dV/dt immune design (50V/ns) | Suppresses false triggering during fast-switching events in noisy motor drive or converter environments |
| AEC-Q100 qualified (Grade 1, −40°C to +125°C) | Validated for under-hood automotive applications including traction inverters and DC-DC converters |
Applications
| Onboard Charger (OBC) | Traction Inverter Gate Drive |
|---|---|
Use Scenario: 6.6kW bidirectional AC/DC converter in EV charging systems using interleaved PFC and LLC stages. IC Role / Device Role / Timing Role: Dual-channel gate driver controlling high-side and low-side SiC MOSFETs in 800V half-bridge legs with precise timing alignment. Use Value: 90ns propagation delay and ≤25ns matching enable stable 300–500kHz operation while minimizing switching losses and EMI. | Use Scenario: Auxiliary power module in hybrid/electric vehicle inverters supplying 12V/48V rails from main battery. IC Role / Device Role / Timing Role: Isolated gate driver interface for IGBTs in 400V DC-DC converter, leveraging bootstrap configuration and dV/dt immunity. Use Value: 600V offset tolerance and AEC-Q100 qualification ensure reliable operation in high-noise, high-temperature under-hood environments. |
| Industrial SMPS | Automotive Lighting Driver |
Use Scenario: High-efficiency 1–3kW telecom or server PSU using active clamp forward or phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: High-side/low-side driver for primary-side MOSFETs, synchronized via matched delay to reduce conduction overlap. Use Value: 3.5A peak output current ensures fast gate charging of >100nC FETs, supporting <100ns rise/fall times at full load. | Use Scenario: Adaptive LED headlamp driver with PWM dimming and short-circuit protection in ADAS-equipped vehicles. IC Role / Device Role / Timing Role: Low-latency gate driver for high-side N-MOSFET switches controlling multi-string LED arrays. Use Value: 3.3V logic compatibility allows direct interface with automotive microcontrollers; UVLO prevents LED flicker during cold-crank events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual-channel gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS21844SPbF | Non-automotive grade; lacks AEC-Q100 qualification; identical pinout and electrical specs except for temperature range (−40°C to +125°C vs. −40°C to +110°C) | Suitable for industrial SMPS but not certified for automotive safety-critical subsystems | Select when cost sensitivity outweighs automotive qualification requirements |
| UCC27211D | Higher 4A peak output; no integrated high-side level shifter-requires external bootstrap diode/capacitor; no VS dV/dt rating specified | Better for discrete high-side designs where layout control over bootstrap loop is prioritized | Choose for higher-current Si MOSFETs or when tighter thermal management is needed via SOIC-8 package |
Compared with IRS21844SPbF and UCC27211D, the AUIRS2191S uniquely combines AEC-Q100 Grade 1 qualification, 600V dV/dt immunity, and matched timing in a single SOIC-16 package-making it the only option qualified for automotive high-side gate drive without external level-shifting components.
Availability
AUIRS2191S is available at Aetrix Electronics and suitable for automotive onboard chargers, traction auxiliary converters, and industrial high-frequency SMPS requiring stable component supply across extended temperature and voltage ranges.
Supply support for AUIRS2191S 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 global semiconductor leader specializing in power management, automotive electronics, and industrial control solutions, with deep expertise in high-voltage IC design and automotive qualification.
The AUIRS2191S belongs to Infineon's automotive-qualified high-voltage gate driver product line, engineered specifically for robust half-bridge control in electrified vehicle power conversion systems operating up to 600V.
FAQ
What is the maximum allowable dV/dt at the VS pin?
The AUIRS2191S is rated for 50V/ns dV/dt at the VS pin, verified per AEC-Q100 stress testing. This immunity prevents false triggering during fast-switching transitions in high-frequency converters and motor drives, eliminating need for external RC snubbers in most layouts.
Can the AUIRS2191S drive SiC MOSFETs?
Yes-the AUIRS2191S delivers 3.5A peak gate current and supports 10–20V VCC/VB, making it suitable for driving common 1200V SiC MOSFETs with Qg ≤15nC. Layout best practices (short gate loops, Kelvin source connections) are required to maintain switching integrity above 300kHz.
Is an external bootstrap diode required?
No external diode is required for standard bootstrap operation-the AUIRS2191S integrates internal diode functionality within its HVIC structure. However, a discrete ultrafast 100V/1A diode (e.g., BAS21) is recommended for improved reliability in high-temperature or high-dV/dt environments.
Does the device support 3.3V-only microcontroller interfaces?
Yes-its CMOS Schmitt-triggered inputs operate down to 2.5V VIH threshold with 3.3V supply, and internal pull-down resistors ensure defined low-state behavior. No level-shifting circuitry is needed when interfacing with 3.3V automotive MCUs such as Infineon's AURIX TC3xx series.
AUIRS2191S 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
- 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):
- 3.5A, 3.5A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 15ns, 15ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
AUIRS2191S FAQ
1.How can I place an order for AUIRS2191S through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRS2191S 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 AUIRS2191S reliable?
The price and inventory of AUIRS2191S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRS2191S is usually 5 days.
3.What payment methods are accepted for AUIRS2191S?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRS2191S transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRS2191S?
AUIRS2191S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRS2191S 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 AUIRS2191S?
For technical support, including AUIRS2191S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRS2191S requirements.
6.How does Aetrix verify that AUIRS2191S is sourced from the original manufacturer or authorized distributors?
All AUIRS2191S 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 AUIRS2191S meets industry standards.
7.What is the process for return or replacement of AUIRS2191S?
All AUIRS2191S units undergo pre-shipment inspection (PSI). If there is an issue with AUIRS2191S, 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 AUIRS2191S part is unused and in its original packaging.
Return procedure for AUIRS2191S:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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