Half Bridge Driver, Soft Turn-On, All High Voltage Pins on One Side, Separate High and Low Side Inputs, Programmable 540-5000ns Deadtime The IRS21084 is a high-voltage, high-speed power MOSFET and IGBT driver from International Rectifier (IR).
### **Manufacturer:**
- **International Rectifier (IR)**
### **Specifications:**
- **High-Side and Low-Side Driver:** Can drive both high-side and low-side MOSFETs/IGBTs independently.
- **Floating High-Side Channel:** Supports bootstrap operation for high-side driving.
- **Voltage Range:**
- **High-Side:** Up to 600V
- **Low-Side:** Compatible with logic-level inputs (3.3V, 5V, 15V).
- **Output Current:** Typically 290mA source / 600mA sink.
- **Propagation Delay:** Matched delays between high-side and low-side (typ. 120ns).
- **Dead Time:** Adjustable to prevent shoot-through.
- **Undervoltage Lockout (UVLO):** Protects both high-side and low-side channels.
- **Operating Frequency:** Suitable for high-frequency switching applications.
- **Package:** Typically available in 8-pin PDIP or SOIC.
### **Descriptions and Features:**
- **Independent High and Low Drive Outputs:** Allows flexible control of two power switches.
- **CMOS Schmitt-Triggered Inputs:** Ensures noise immunity.
- **Matched Propagation Delays:** Ensures precise timing for synchronous applications.
- **Bootstrap Operation:** Eliminates the need for a separate high-side power supply.
- **Cross-Conduction Prevention:** Built-in dead time to avoid simultaneous conduction.
- **Wide Supply Voltage Range:** Compatible with various logic levels.
- **Robust Protection:** Includes UVLO for both channels to prevent malfunction.
The IRS21084 is commonly used in motor drives, half-bridge and full-bridge converters, and other high-voltage switching applications.
