IR2104 Half Bridge Driver IC DIP-8

The IR2104 Half Bridge Driver IC is a high-voltage, high-speed power MOSFET and IGBT driver with independent high and low side referenced output channels. It is commonly used in switching power supplies, motor drivers, and inverters. With its built-in dead-time protection and under-voltage lockout features, the IR2104 offers robust and efficient gate driving performance.

Key Features of IR2104 Half Bridge Driver IC DIP-8:

• High Voltage Capability: Operates up to 600V for high-side floating supplies.
• Gate Drive Output: Can source 120mA and sink 250mA for fast switching.
• Floating Channel: Designed for bootstrap operation to drive high-side N-channel MOSFETs.
• Dead-Time Insertion: Internal logic avoids shoot-through conditions.
• Under-Voltage Lockout: Ensures reliable gate drive under all conditions.
• TTL Compatible Inputs: Logic-level inputs work with 3.3V or 5V systems.

Technical Specifications of IR2104 Half Bridge Driver IC DIP-8:

• High-Side Offset Voltage: 600V max
• Gate Drive Supply Voltage: 10V – 20V
• Low-Side Output Voltage: 10V – 20V referenced to COM
• High-Side Output Voltage: 10V – 20V referenced to VS
• Turn-On Propagation Delay: 120ns (typical)
• Turn-Off Propagation Delay: 94ns (typical)
• Logic Input Voltage Range: 3V – 20V
• Package: DIP-8 through-hole

Mechanical Specifications of IR2104 Half Bridge Driver IC:

• Package Type: Dual Inline Package (DIP-8)
• Mounting Type: Through-hole for easy PCB integration
• Pin Pitch: 2.54mm standard
• Material: Plastic epoxy body

Dimensions:

• Body Length: 9.8mm
• Body Width: 6.4mm
• Body Height: 4.5mm
• Lead Pitch: 2.54mm

Mounting Options:

• Through-Hole Mount: Suitable for standard hole-mount PCBs.
• Sockets: Compatible with DIP-8 IC sockets for replaceable installation.

Schematic Diagram, Connection, Wiring and Pinout of IR2104 IC:

• Pin 1 (LO): Low-side gate drive output
• Pin 2 (COM): Low-side return
• Pin 3 (VCC): Logic and low-side driver supply
• Pin 4 (IN): Logic input signal
• Pin 5 (SD): Shutdown input (active low)
• Pin 6 (VS): High-side floating supply return
• Pin 7 (HO): High-side gate drive output
• Pin 8 (VB): High-side floating supply

Datasheet of IR2104 Half Bridge Driver IC:

• Download IR2104 Datasheet (PDF)

Applications of IR2104 Half Bridge Driver IC:

• DC-DC Converters: Drives high- and low-side switches in buck or boost converters.
• Brushless DC Motor Controllers: For efficient 3-phase motor drive designs.
• Power Inverters: Enables switching in single or multi-phase inverter topologies.
• Switching Power Supplies: Controls MOSFET switching for isolated and non-isolated supplies.
• Class D Audio Amplifiers: Used for high-efficiency PWM drive circuits.

Equivalent of IR2104 Half Bridge Driver IC:

• IR2101: Higher current version with similar functionality
• IRS2104: Improved version from Infineon with better EMI immunity
• IR2109: Compatible IC with different dead-time and input logic
• HCPL-3120: Optically isolated driver alternative

Package Includes:

• 1 x IR2104 Half Bridge Driver IC DIP-8