IR2153 Self Oscillating Half Bridge Driver IC DIP-8

IR2153 Self Oscillating Half Bridge Driver IC DIP-8 is a highly integrated, high-voltage gate driver IC specifically engineered to simplify the design of low-cost electronic ballast and switched-mode power supply (SMPS) applications. This device operates with a self-oscillating half-bridge topology, which significantly reduces external component count and circuit complexity. Consequently, manufacturers can achieve efficient power conversion with fewer resources. The IR2153 directly drives two N-channel power MOSFETs or IGBTs in a half-bridge configuration, effectively switching voltages up to 600V. Therefore, designers widely select this driver to develop highly reliable, cost-effective power solutions for various consumer and industrial electronics.

Key Features:

• Integrated 600V Half-Bridge Driver: This chip directly controls high-side and low-side power switches up to 600V, minimizing the need for complex level-shifting circuitry.
• Self-Oscillating Topology: Designers set the operational frequency with only two external components—a timing resistor (R_T) and a timing capacitor (C_T)—simplifying the overall circuit design.
• Adjustable Dead-Time: The circuit includes a fixed dead-time of ≈ 1.2 µs, which prevents shoot-through by ensuring both MOSFETs do not turn on simultaneously.
• High and Low Side Outputs: The high-side (HO) and low-side (LO) outputs deliver robust gate drive signals with matched propagation delays for synchronous switching.
• Under-Voltage Lockout (UVLO): The UVLO feature automatically shuts down the outputs when the supply voltage (V_CC) drops too low, protecting the MOSFETs from unreliable switching during power-up or power-down.

Technical Specifications:

• Maximum Offset Voltage (V_offset): 600 V
• Supply Voltage Range (V_CC): 10 V to 15 V
• Gate Drive Output Current (I_O+/I_O−): 0.13 A / 0.27 A (Source/Sink)
• Operating Frequency: User-defined by R_T and C_T (typically 10 kHz to 200 kHz)
• Built-in Dead Time: ≈ 1.2 µs
• Output Rise/Fall Time: 150 ns / 90 ns (Typical)
• Operating Temperature Range: −40°C to +125°C (Junction Temperature)

Mechanical Specifications:

• Package Type: DIP-8 (Dual In-line Package)
• Mounting: Through-Hole Technology (THT)
• Lead Material: Tinned Copper
• Case Material: Black Molded Epoxy Resin

Dimensions:

• Body Length: ≈ 9.2 mm
• Body Width: ≈ 6.5 mm
• Pin Pitch (Between pins): 2.54 mm (0.1 inch)
• Row Spacing (Between rows): 7.62 mm (0.3 inch)
• Total Height: ≈ 3.3 mm (Seated height)

Pinout and Wiring:

• Pin 1 (C_T): Connect the timing capacitor (C_T) from this pin to COM (Pin 4). This capacitor determines the oscillating frequency.
• Pin 2 (R_T): Connect the timing resistor (R_T) from this pin to V_CC (Pin 8). This resistor also determines the oscillating frequency.
• Pin 3 (V_CC): Input voltage supply pin (10 V to 15 V).
• Pin 4 (COM): Reference ground for the control circuit.
• Pin 5 (LO): Low-side gate driver output. Connects to the gate of the low-side MOSFET.
• Pin 6 (V_S): High-side floating supply return. Connects to the switching node (Source of the high-side MOSFET/Drain of the low-side MOSFET).
• Pin 7 (HO): High-side gate driver output. Connects to the gate of the high-side MOSFET.
• Pin 8 (V_B): High-side floating supply voltage. Connect a bootstrap capacitor from V_B to V_S to power the high-side driver.

Datasheet Reference:

• Download Infineon IR2153 Datasheet

Commonly Used in:

• Fluorescent Lamp Ballasts: This IC provides the cost-effective high-frequency AC drive essential for efficient lamp operation.
• DC-DC Converters: Designers use it in push-pull and half-bridge DC-DC converters for isolated power applications.
• Audio Amplifiers: Used in Class D audio power supply circuits that require high switching frequencies.

Applications:

• Switch-Mode Power Supplies (SMPS): Drives the high-voltage stage in compact and efficient power supply designs.
• Induction Heating Systems: Generates the necessary high-frequency AC signal for low-power induction coils.
• LED Lighting Drivers: Provides the foundation for highly efficient, high-voltage LED power supplies.

Equivalent Models:

• IRS2153D: An improved version from Infineon that often serves as a pin-compatible, direct replacement, featuring faster switching characteristics.
• L6574 (STMicroelectronics): A competitor’s self-oscillating driver IC used for similar electronic ballast applications.
• IR2153S: The surface-mount (SOIC-8) version of the same chip, functionally equivalent but designed for reflow soldering.

Package Includes:

• 1 x IR2153 Self Oscillating Half Bridge Driver IC DIP-8