Overview
The IR2104STRPBF is a high/low-side gate driver IC designed for half-bridge MOSFET and IGBT switching applications. It is widely used in motor control inverters, DC-DC converters, and switch-mode power supplies, where reliable high-voltage gate control, bootstrap operation, and fast switching immunity are required. The device supports a wide range of logic voltages and includes built-in protection for robust operation. In addition to the tape-and-reel version IR2104STRPBF, the IR2104SPBF variant is available in tube packaging for flexible manufacturing needs.
Core Parameters
| Parameter | Specification |
|---|---|
| High-Side Voltage (VBS) | Up to 600 V |
| Gate Drive Supply (VCC) | 10 V to 20 V |
| Peak Output Current | ~360 mA (source), ~210 mA (sink) |
| Logic Input Levels | CMOS/LSTTL (3.3 V, 5 V, 15 V compatible) |
| Dead-Time | Internally set |
| Propagation Delay | Typical ~680 ns |
| Package | 8-SOIC for STR/Tape & Reel |
| Operating Temperature | –40 °C to +125 °C |
These parameters make the device suitable for half-bridge gate control, especially where high-side bootstrap operation and high-voltage switching are critical in power electronics designs.
Features
- Floating high-side driver designed for bootstrap operation
- Fully operational up to 600 V bus voltage
- Compatible with 3.3 V, 5 V, and 15 V logic inputs
- Undervoltage lockout (UVLO) for safe startup
- Cross-conduction prevention logic
- Internally controlled dead-time insertion
- High dV/dt immunity for rugged environments
- Logic-level shutdown input to turn off both channels
- Supported in tape-and-reel (STR) and tube packages (SP)
Typical Application Scenarios
- Brushless DC (BLDC) and AC motor drives
- High-voltage half-bridge DC-DC converters
- Power factor correction (PFC) circuits
- Switch-mode power supplies (SMPS)
- Industrial automation drives and robotics
- Induction heating and HVAC inverter systems
The IR2104STRPBF high- and low-side MOSFET driver pairs perfectly with the IRF3205PBF power MOSFET, providing efficient switching and robust performance in half-bridge and motor driver circuits.
Performance Comparison
| Feature | IR2104STRPBF | Simple Low-Side Driver | Discrete Gate Driver |
|---|---|---|---|
| High-Side Support | Up to 600 V | No | Partial |
| Bootstrap Operation | Yes | No | External components |
| Logic Compatibility | 3.3/5/15 V | Limited | Varies |
| Dead-Time Control | Internal | No | External |
| Integration | High | Low | Medium |
The IR2104STRPBF provides integrated high-side/low-side control and dead-time management, reducing external components and design complexity compared with simpler gate drivers or discrete solutions.
Conclusion
The IR2104STRPBF is a reliable and efficient high/low-side gate driver IC ideal for demanding half-bridge power electronics applications. Its wide voltage tolerance, bootstrap support, and internal protections make it suitable for industrial, automotive, and power conversion systems where rugged performance and flexible logic interfaces are required.
When designing half-bridge power stages, the IR2104SPBF tube version offers identical electrical performance to the IR2104STRPBF tape-and-reel part, enabling flexible assembly options while driving high-side and low-side MOSFETs with robust bootstrap support.
Manufacturer Profile
Infineon Technologies (formerly International Rectifier) is a leading global supplier of power semiconductors, including MOSFET drivers, IGBT controllers, and power management ICs. Infineon’s gate driver portfolio is widely adopted for high-performance power conversion and motor-drive applications due to its robust design and long product support.
FAQ
Q1: What voltage range does the IR2104STRPBF support?
A: It supports high-side floating voltages up to 600 V and gate drive supply voltages from 10 V to 20 V, making it suitable for half-bridge designs.
Q2: Why is bootstrap operation important for this gate driver?
A: Bootstrap operation allows the high-side driver to derive its supply from the switching node, enabling simpler high-side MOSFET control without an isolated supply.
Q3: Can the IR2104STRPBF interface with low-voltage microcontrollers?
A: Yes, it supports 3.3 V, 5 V, and 15 V logic input levels, making it compatible with a wide range of MCUs and control logic.
Q4: How can the quality of IR2104STRPBF be verified?
A: 7SEtronic follows a complete quality inspection SOP including label verification, external visual inspection, and X-ray analysis to ensure authenticity and reliable performance.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need.
You can find more component guides and application notes in our Component Technical Guides section: