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Infineon Technologies IR7304SPBF
- Part No.:
- IR7304SPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IR7304SPBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,989
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Product details
Overview
IR7304SPBF from Infineon Technologies (formerly International Rectifier) is a 700V high-voltage half-bridge gate driver IC designed for driving N-channel IGBTs and MOSFETs in high-side/low-side configurations. It features matched 220ns propagation delays, integrated 100ns deadtime, dual undervoltage lockout (VCC & VBS), and 3.3V–15V logic-compatible inputs. Used in appliance motor drives and micro-inverter power stages.
For engineers reviewing the IR7304SPBF datasheet, IR7304SPBF pinout, IR7304SPBF application, or IR7304SPBF equivalent, key selection criteria include bootstrap-compatible floating channel operation up to 700V offset, shoot-through prevention logic, ±50ns delay matching tolerance, and dual UVLO thresholds with hysteresis for robust power supply monitoring.
Technical Context
The IR7304SPBF integrates two independent gate drivers - one referenced to COM (low-side) and one referenced to VS (high-side floating well) - with level-shifted logic inputs and latch-immune HVIC technology. Its internal shoot-through prevention circuit enforces minimum 100ns deadtime between HO and LO transitions regardless of input timing skew.
Propagation delays are tightly matched (≤50ns max mismatch) to support high-frequency PWM operation up to several hundred kHz. The device tolerates dVS/dt transients up to 50 V/ns and supports logic inputs down to 3.3V while maintaining full output drive capability across VCC = 10–20V and VB = VS + 10V to VS + 20V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOFFSET | 700 V maximum floating voltage rating - enables direct high-side drive in 600V-class inverters without external level shifters |
| tON / tOFF | 220 ns typical - supports PWM frequencies >400 kHz with minimal timing uncertainty |
| Deadtime | 100 ns typical - hardware-enforced minimum interval prevents simultaneous conduction in bridge legs |
| Io+ / Io− | 60 mA / 130 mA peak pulsed output - sufficient to charge/discharge 1000 pF gate capacitance in <300 ns |
| VCCUV / VBSUV | 8.9 V ±0.7 V hysteresis - ensures reliable restart after brownout without oscillation during supply recovery |
| dVS/dt immunity | 50 V/ns - withstands fast switching transients in hard-switched topologies without false triggering |
Pinout & Package
IR7304SPBF is housed in an 8-lead SOIC (SO8N) package with exposed pad for thermal enhancement. Pin 1 is LIN; pins are arranged as follows (counting left-to-right, top row: 1–4; bottom row: 8–5): LIN, HIN, VCC, COM, VB, HO, VS, LO.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LIN | Logic input for low-side driver | CMOS/LSTTL-compatible signal controlling LO output; referenced to COM |
| HIN | Logic input for high-side driver | Level-shifted input controlling HO output; referenced to VS via internal HVIC |
| VCC | Low-side supply rail | Provides power for logic and low-side driver; range 10–20 V |
| COM | Low-side return/reference | Ground reference for LIN, LO, and VCC; must be connected to system power ground |
| VB | High-side bootstrap supply input | Connects to bootstrap capacitor top; supplies high-side driver stage |
| HO | High-side gate drive output | Drives gate of high-side N-channel device; referenced to VS |
| VS | Floating high-side return | Reference node for HO and VB; tracks source of high-side switch up to 700 V offset |
| LO | Low-side gate drive output | Drives gate of low-side N-channel device; referenced to COM |
Key Features
| Feature | Design Value |
|---|---|
| Integrated deadtime generator | Hardware-enforced 100 ns minimum interval prevents shoot-through without external timing components |
| Dual undervoltage lockout | Independent UVLO on VCC and VBS ensures both driver sections disable before supply collapse causes erratic switching |
| Matched propagation delays | ≤50 ns max difference between tON(HO) and tON(LO) simplifies timing budgeting in high-frequency inverters |
| Bootstrap-compatible architecture | VS-referenced high-side channel eliminates need for isolated DC-DC or transformer-based gate supplies |
| Robust transient immunity | 50 V/ns dVS/dt rating maintains correct logic state during fast high-side switching transitions |
Applications
| Appliance Motor Drives | Servo Drives |
|---|---|
Use Scenario: Variable-speed control of BLDC compressors and washing machine drum motors using 3-phase inverter topology. IC Role / Device Role / Timing Role: Half-bridge gate driver providing synchronized, shoot-through-protected HO/LO outputs for each inverter leg. Use Value: Integrated 100ns deadtime and matched delays ensure precise commutation timing across all three phases at 20–40 kHz PWM. | Use Scenario: High-bandwidth position/velocity control in industrial servo amplifiers with fast current-loop response. IC Role / Device Role / Timing Role: Gate driver enabling <300 ns total propagation delay with <50 ns skew between high- and low-side channels. Use Value: Tight delay matching preserves PWM fidelity at >100 kHz switching, minimizing torque ripple and improving dynamic accuracy. |
| Micro Inverter Drives | General Purpose Three-Phase Inverters |
Use Scenario: Single-phase grid-tied solar microinverters converting DC from individual PV panels to AC. IC Role / Device Role / Timing Role: High-side/low-side driver operating with bootstrap supply under 700V DC-link conditions. Use Value: 700V offset rating and dVS/dt immunity allow direct use with 600V-class IGBTs without auxiliary isolation. | Use Scenario: HVAC fan, pump, and conveyor drives requiring rugged, cost-effective inverter modules. IC Role / Device Role / Timing Role: Dual-channel gate driver supporting 3-phase bridge with shared logic interface and independent UVLO monitoring. Use Value: Dual VCC/VBS UVLO prevents partial drive failure during brownout, enhancing system reliability in unregulated industrial mains environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS21844PbF | Same 8-pin SOIC package; 600V VOFFSET; 250ns typical tON/tOFF; no integrated deadtime generator | Requires external RC deadtime circuit; lower voltage rating limits use in 700V DC-link systems | Select when 600V rating suffices and external timing control is preferred |
| UCC27712DR | 700V VOFFSET; 150ns tON/tOFF; integrated 150ns deadtime; higher 2.5A peak output current | Higher drive strength supports larger gate charges; tighter deadtime spec but less dVS/dt immunity (25 V/ns) | Select for faster switching with large IGBTs where layout-controlled dVS/dt is manageable |
Compared with IRS21844PbF and UCC27712DR, the IR7304SPBF offers optimal balance of 700V robustness, hardware-enforced deadtime, and moderate drive strength - making it ideal for cost-sensitive, medium-power inverter designs where layout-induced transients are significant.
Availability
IR7304SPBF is available at Aetrix Electronics and suitable for appliance motor drives, servo drives, and micro inverter drives requiring stable component supply and long-term industrial availability.
Supply support for IR7304SPBF 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, sensor, and automotive ICs, with heritage from International Rectifier's high-voltage power solutions.
The IR7304SPBF belongs to Infineon's legacy HVIC gate driver product line, engineered specifically for cost-effective, bootstrap-powered half-bridge topologies in consumer and industrial motor control applications.
FAQ
What is the maximum allowable dVS/dt at the VS pin?
The IR7304SPBF is rated for 50 V/ns dVS/dt at the VS pin under recommended operating conditions. This specification ensures reliable operation during fast high-side switching transitions without false logic state changes or latch-up. Exceeding this rate may cause erroneous output behavior or damage if sustained beyond absolute maximum ratings.
Can IR7304SPBF drive both IGBTs and MOSFETs?
Yes, the IR7304SPBF is explicitly designed to drive both N-channel IGBTs and MOSFETs. Its 60mA/130mA peak output current and 10–20V output voltage range support typical gate charge requirements for devices up to ~100 nC. The output stage is optimized for low gate resistance and fast edge rates required by modern high-speed switching devices.
Is external deadtime circuitry required?
No external deadtime circuitry is required. The IR7304SPBF integrates hardware-based deadtime generation with a typical value of 100ns, enforced independently of input timing. This eliminates timing uncertainty from PCB trace mismatches and simplifies design for high-frequency inverters where precise cross-conduction prevention is critical.
What is the purpose of the VS pin and how should it be connected?
The VS pin serves as the high-side floating return reference for the HO output and VB supply. It must be connected directly to the source terminal of the high-side N-channel switch. This connection establishes the local ground for the high-side driver stage and enables accurate sensing of the floating well voltage, ensuring proper level-shifting and UVLO monitoring relative to the switched node.
IR7304SPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-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, 2.3V
- Current - Peak Output (Source, Sink):
- 60mA, 130mA
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 700 V
- Rise / Fall Time (Typ):
- 200ns, 100ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IR7304SPBF FAQ
1.How can I place an order for IR7304SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IR7304SPBF 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 IR7304SPBF reliable?
The price and inventory of IR7304SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR7304SPBF is usually 5 days.
3.What payment methods are accepted for IR7304SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR7304SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IR7304SPBF?
IR7304SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IR7304SPBF 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 IR7304SPBF?
For technical support, including IR7304SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR7304SPBF requirements.
6.How does Aetrix verify that IR7304SPBF is sourced from the original manufacturer or authorized distributors?
All IR7304SPBF 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 IR7304SPBF meets industry standards.
7.What is the process for return or replacement of IR7304SPBF?
All IR7304SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR7304SPBF, 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 IR7304SPBF part is unused and in its original packaging.
Return procedure for IR7304SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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