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Infineon Technologies IR3101
- Part No.:
- IR3101
- Manufacturer:
- Infineon Technologies
- Category:
- Motor Drivers, Controllers
- Package:
- 11-SIP, 9 Leads
- Datasheet:
-
IR3101.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 11SIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,373
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Product details
Overview
IR3101 from Infineon Technologies is a monolithic half-bridge gate driver IC with integrated 500V FredFETs, delivering 1.6A continuous output current at TC = 100°C. It features bootstrap high-side drive, integrated bootstrap diode, and latch-immune CMOS/HVIC technology for motor inverter stages in heat-sink-less appliance compressors and fans.
For engineers reviewing the IR3101 datasheet, IR3101 pinout, IR3101 application, or IR3101 equivalent, key selection criteria include isolation rating (1500 VRMS), matched propagation delays, VDD = 500V capability, and integrated body-diode recovery optimization for trapezoidal BLDC control up to 20 kHz.
Technical Context
The IR3101 integrates two 500V FredFETs (RDS(on) = 0.8 Ω typ. @ 25°C, 1.7 Ω max @ 125°C) with a dedicated HVIC-based gate driver. Its high-side floating supply (VB = VO + 10 to VO + 20 V) enables bootstrap operation without external level shifters.
Undervoltage lockout thresholds are independently set for VCC (8.0–9.8 V) and VB (8.0–9.8 V) with 0.7 V hysteresis, and logic inputs (HIN/LIN) accept 10–20 V VCC while maintaining VIH ≥ 2.9 V and VIL ≤ 0.8 V for noise-immune PWM control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Rating | 500 V - supports direct connection to 300 V DC bus with margin for voltage spikes in motor inverter applications |
| Continuous Output Current | 1.6 A @ TC = 100°C - enables heat-sink-less operation in sub-250W compressor drivers |
| Isolation Voltage | 1500 VRMS min - provides reinforced insulation between power and logic domains for safety-critical appliance designs |
| RDS(on) High-Side | 0.8 Ω typ. @ 25°C - reduces conduction loss in high-side switching path of half-bridge inverter |
| tRR (Body Diode) | 105–180 ns @ 25°C - ultra-fast reverse recovery minimizes shoot-through risk during commutation in BLDC drives |
| VBS UVLO Hysteresis | 0.7 V - ensures stable bootstrap capacitor recharge detection and prevents erratic high-side turn-on |
Pinout & Package
SIP-11 (Single In-line Package) with internal isolation barrier; 11-pin layout optimized for compact motor control PCBs with minimal trace inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VCC | Logic and gate drive supply | Provides 10–20 V bias for internal logic and low-side driver stage |
| 2 HIN | High-side logic input | CMOS-compatible PWM input controlling high-side FET; VIH ≥ 2.9 V ensures noise margin |
| 3 LIN | Low-side logic input | CMOS-compatible PWM input controlling low-side FET; VIL ≤ 0.8 V prevents false triggering |
| 5 VSS | Logic ground reference | Common return for logic signals and internal bias networks |
| 6 COM | Low-side MOSFET source return | Power ground node for low-side FET; isolated from VSS to enable half-bridge topology |
| 8 VB | High-side floating supply | Bootstrap-supplied rail for high-side driver; referenced to VO, not COM |
| 9 VO | Half-bridge output | Switching node connecting both FET sources/drains; connects to motor phase winding |
| 11 VDD | High-voltage DC bus input | Primary power input referenced to COM; withstands 500 V transient overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Bootstrap Diode | Eliminates external diode component and associated layout complexity in high-side supply path |
| Latch-Immune HVIC Driver | Prevents destructive latch-up under high dv/dt or ESD stress, enabling robust operation in noisy motor environments |
| FredFET Body Diode Recovery | tRR = 105–180 ns ensures clean commutation in trapezoidal BLDC drives without external snubbers |
| Matched HS/LS Propagation Delays | Delay matching ≤ 30 ns minimizes dead-time uncertainty and improves inverter efficiency |
Applications
| Refrigerator Compressor Drive | Fan Motor Inverter |
|---|---|
Use Scenario: Heat-sink-less 150–250W variable-speed compressor in domestic refrigerators operating at 10–20 kHz PWM. IC Role / Device Role / Timing Role: Half-bridge inverter stage with integrated gate drive and 500V/1.6A FredFETs; handles trapezoidal commutation timing. Use Value: Enables compact, thermally self-contained design by eliminating heatsink and external bootstrap components. | Use Scenario: Low-noise, high-efficiency airflow control in HVAC blowers and refrigerator evaporator fans. IC Role / Device Role / Timing Role: Two-phase inverter core driving sensorless BLDC fan motors with <200 ns minimum dead-time requirement. Use Value: Integrated UVLO hysteresis and matched delays ensure reliable start-up and prevent shoot-through at varying line voltages. |
| Small Appliance Motor Control | Portable Power Tool Driver |
Use Scenario: Compact, cost-sensitive motor drives in vacuum cleaners and food processors requiring <250W output. IC Role / Device Role / Timing Role: Single-package half-bridge replacing discrete driver + MOSFET solutions; supports 120° trapezoidal modulation. Use Value: Reduces BOM count by 7+ components (driver IC, two MOSFETs, bootstrap diode, gate resistors) and PCB area by >40%. | Use Scenario: Battery-powered cordless tools with 18–36 V nominal packs and peak loads up to 200 W. IC Role / Device Role / Timing Role: High-side/lower-side switching element with 1500 VRMS isolation for user safety in hand-held devices. Use Value: Reinforced isolation meets IEC 62368-1 creepage/clearance requirements without additional barrier design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IR2101S | Discrete driver only (no integrated FETs); requires external 500V MOSFETs; no integrated bootstrap diode | Higher BOM count and layout sensitivity; suitable where thermal separation of driver and FETs is required | Select when discrete FET selection (e.g., specific RDS(on) or SOA) overrides integration benefits |
| FAN7382MX | 600V-rated driver only; no integrated FETs; higher VCC UVLO (11.5 V) limits low-voltage operation | Lacks on-die isolation barrier; requires external isolation for safety-critical appliances | Select when higher bus voltage margin (600 V) and dual-channel independent outputs are needed |
Compared with IR2101S and FAN7382MX, IR3101 uniquely combines 500V FredFETs, bootstrap diode, and 1500 VRMS isolation in one SIP package-reducing system size, component count, and layout risk for sub-250W heat-sink-less motor drives.
Availability
IR3101 is available at Aetrix Electronics and suitable for refrigerator compressor drives, fan motor inverters, and small-appliance motor controls requiring stable component supply and long-term industrial lifecycle support.
Supply support for IR3101 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.
The IR3101 belongs to Infineon's IR3xxx family of integrated half-bridge modules, designed specifically for compact, heat-sink-less BLDC motor inverters in white goods and portable power equipment.
FAQ
What is the maximum switching frequency supported by IR3101?
The IR3101 supports up to 20 kHz switching frequency in trapezoidal BLDC operation without heatsink, as validated in Figure 3 of the datasheet. At this frequency and 300 V bus, it delivers 1.5 A continuous output current with TJ limited to 150°C at ambient 55°C. Higher frequencies require derating or heatsink use per Figure 4.
Does IR3101 require an external bootstrap capacitor?
Yes, IR3101 requires an external bootstrap capacitor between VB and VO pins. The datasheet recommends selecting its value based on switching frequency and load current using IR design tip DN 98-2a. The integrated bootstrap diode eliminates the need for an external diode but does not replace the capacitor.
Can IR3101 drive three-phase motors directly?
No, IR3101 is a single half-bridge module (one high-side + one low-side switch). Driving a three-phase motor requires three IR3101 units-one per phase leg-or pairing with external logic to coordinate commutation sequencing across multiple modules.
What is the purpose of the COM pin, and how does it differ from VSS?
COM is the low-side MOSFET source return and power ground reference for the high-voltage domain, electrically isolated from VSS (logic ground). This separation enables the high-side driver to float relative to VO and maintain proper gate-to-source bias during switching, which is essential for half-bridge operation.
IR3101 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- iMOTION™
- Package/Case:
- 11-SIP, 9 Leads
- Packaging:
- Tube
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- 10V ~ 20V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 11-SIP
IR3101 FAQ
1.How can I place an order for IR3101 through Aetrix?
Please submit a Request for Quotation (RFQ) for IR3101 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 IR3101 reliable?
The price and inventory of IR3101 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR3101 is usually 5 days.
3.What payment methods are accepted for IR3101?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR3101 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR3101?
IR3101 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR3101 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 IR3101?
For technical support, including IR3101 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR3101 requirements.
6.How does Aetrix verify that IR3101 is sourced from the original manufacturer or authorized distributors?
All IR3101 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 IR3101 meets industry standards.
7.What is the process for return or replacement of IR3101?
All IR3101 units undergo pre-shipment inspection (PSI). If there is an issue with IR3101, 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 IR3101 part is unused and in its original packaging.
Return procedure for IR3101:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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