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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Gate Drivers

Infineon Technologies IR2154S

Name: IR2154S
Brand: Infineon Technologies
SKU: IR2154S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR2154S

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: IR2154S.pdf

Description:: IC GATE DRVR HALF-BRIDGE 8SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:2,872

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Product details

Overview

IR2154S from Infineon Technologies is a self-oscillating 600V half-bridge gate driver IC with integrated oscillator, 15.6V VCC zener clamp, 1.2µs typical deadtime, and shutdown functionality via CT pin. It drives high- and low-side N-channel MOSFETs in resonant LLC, ballast, and HID lamp control circuits where precise timing and noise immunity are critical.

For engineers reviewing the IR2154S datasheet, IR2154S pinout, IR2154S application, or IR2154S equivalent, key selection criteria include its micropower startup current (75µA typ), 1V UVLO hysteresis, 80/40ns rise/fall times, and CT-pin–based shutdown threshold (2.1V typ) - all verified in PD60063I preliminary datasheet.

Technical Context

The IR2154S integrates a CMOS 555-style oscillator front end with adjustable frequency (19.4–20.6kHz at RT=36.9kΩ, CT=1nF) and fixed 50% duty cycle. Its high-side level-shifting circuit operates up to 600V offset with ±50V/ns dV/dt immunity and includes internal 15.6V zener clamping on VCC.

Deadtime is controlled by internal delay and logic, delivering tight initial control (±0.25µs variation) and low temperature coefficient. Shutdown is triggered when CT voltage drops below 2.1V, forcing both HO and LO outputs low while maintaining latch immunity across all pins.

Key Specifications

Parameter	Value and Actual Design Meaning
VOFFSET	600V max - supports high-side switching in bridge topologies with up to 600V bus voltage
f_osc	19.4–20.6 kHz - factory-trimmed oscillator frequency for stable timing without external crystal
Deadtime (typ.)	1.2 µs - ensures safe non-overlap between HO and LO drive pulses in half-bridge operation
V_CLAMP	15.6 V - internal zener limits VCC to prevent overvoltage damage during bootstrap charging
UVLO Hysteresis	1.0 V - reduces false triggering during supply transients in industrial power supplies
I_QCCUV	75 µA typ - enables reliable startup from low-current auxiliary supplies in energy-efficient ballasts
t_r/t_f	80/40 ns - optimized slew rates balance switching speed and EMI reduction in lighting drivers

Pinout & Package

IR2154S is available in 8-lead SOIC package (RoHS-compliant, JEDEC MS-012AC) with standard thermal pad layout and creepage distance suitable for 600V isolation.

Pin/Terminal	Circuit Role	Design Meaning
V_B	High-side floating supply	Connects to bootstrap capacitor anode; must sustain 600V offset relative to VS
H_O	High-side gate driver output	Drives N-MOSFET gate referenced to VS; in-phase with RT signal
V_S	Floating supply return	Reference node for high-side circuitry; must not swing >5V below ground
L_O	Low-side gate driver output	Drives N-MOSFET gate referenced to COM; constant pulse width at startup
V_CC	Logic supply input	Powered via 15.6V zener clamp; requires ≥5mA to maintain regulation
R_T	Oscillator timing resistor	Sets frequency; 10–100kΩ range yields 10kHz–1MHz per datasheet curves
C_T	Oscillator timing capacitor	Defines ramp period; shutdown activates when voltage falls below 2.1V
C_OM	Signal and power ground	Common reference for all low-side signals and VCC return path

Key Features

Feature	Design Value
True micropower startup	75µA VCC supply current below UVLO threshold enables reliable ignition in low-power HID ballasts
CT-pin shutdown	2.1V threshold allows simple microcontroller or optocoupler-based disable control without external logic
Constant HO/LO pulse width at startup	Eliminates frequency drift during VCC ramp-up, ensuring stable lamp ignition in fluorescent/HID systems
Lower di/dt gate drivers	Reduced edge slew rate improves noise immunity in high-dV/dt environments like SMPS and inverters
ESD protection on all leads	Qualified to >2kV HBM per JESD22-A114 ensures robustness during PCB handling and assembly

Applications

Electronic Ballast Control

HID Lamp Ignition

Use Scenario: Driving resonant half-bridge in 250W metal halide lamp ballast with soft-start and overcurrent protection.

IC Role / Device Role / Timing Role: Self-oscillating gate driver providing synchronized HO/LO outputs with 1.2µs deadtime and CT-triggered shutdown.

Use Value: Eliminates external oscillator and logic, reducing BOM count by 3–5 components while maintaining 1V UVLO hysteresis for grid-voltage resilience.

Use Scenario: Igniting high-pressure sodium lamps requiring precise preheat timing and open-circuit voltage control.

IC Role / Device Role / Timing Role: Timing controller and gate driver with micropower startup (75µA) enabling reliable cold-start from auxiliary winding.

Use Value: Constant pulse width at startup ensures consistent ignition energy delivery, improving lamp life by >15% in field deployments.

LLC Resonant Converter

Induction Heating Inverter

Use Scenario: Controlling half-bridge in 1kW server PSU LLC stage with variable-frequency operation and ZVS optimization.

IC Role / Device Role / Timing Role: Frequency-setting gate driver with RT/CT programmability and 600V offset tolerance for high-side switching.

Use Value: Tight deadtime control (±0.25µs) minimizes shoot-through risk during load transients, increasing converter reliability at 300kHz+ switching.

Use Scenario: Driving 20kHz half-bridge in domestic induction cooktop with overtemperature and overcurrent fault response.

IC Role / Device Role / Timing Role: High-noise-immunity gate driver using low-di/dt outputs and latch-resistant logic for EMI-heavy kitchen environments.

Use Value: 50V/ns dV/dt rating and comprehensive ESD protection prevent spurious shutdowns during pot placement/removal events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar self-oscillating half-bridge gate driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2153S	No CT shutdown feature; 0.5V UVLO hysteresis vs. 1.0V; higher startup current (150µA)	Lacks programmable disable; less resilient to brownout in unstable AC mains	Select when cost sensitivity outweighs need for shutdown control and tighter UVLO margin
FAN7382MX	Non-self-oscillating; requires external PWM input; no RT/CT pins; 600V rating retained	Requires separate controller IC; better suited for digitally regulated systems	Select when system already uses MCU-based timing or needs independent duty-cycle adjustment

Compared with IR2153S and FAN7382MX, the IR2154S uniquely combines self-oscillation, CT-based shutdown, and 1V UVLO hysteresis - making it optimal for standalone, cost-sensitive lighting and resonant converter designs where integration and transient resilience are prioritized.

Availability

IR2154S is available at Aetrix Electronics and suitable for electronic ballast control, HID lamp ignition, and LLC resonant converter designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for IR2154S 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 German semiconductor leader specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The IR2154S belongs to Infineon's high-voltage gate driver product line, engineered specifically for self-contained AC-DC and DC-AC conversion in lighting, appliance, and industrial power systems.

FAQ

What is the maximum allowable dV/dt on the VS pin?

The IR2154S is rated for ±50 V/ns dV/dt on the VS node per Absolute Maximum Ratings. Exceeding this may cause false triggering or latch-up. Layout best practices include minimizing loop area between VS, HO, and bootstrap capacitor, and using ferrite beads on VB traces to suppress ringing.

Can IR2154S drive both N-channel and P-channel high-side MOSFETs?

The IR2154S is designed exclusively for N-channel high-side MOSFETs using bootstrap gate drive. It does not support P-channel devices, as its high-side output (HO) is referenced to VS and lacks the negative voltage capability required for P-MOSFET gate turn-off.

How is the 15.6V VCC clamp implemented internally?

The clamp is a monolithic zener structure between VCC and COM, specified at 14.4–16.8V (typ. 15.6V) with 5mA test current. It is not a regulator - sufficient current (>5mA) must be supplied externally to maintain clamping action during bootstrap charging cycles.

Does IR2154S require external bootstrap diode and capacitor?

Yes. A fast-recovery bootstrap diode (e.g., 1N4148W or equivalent) and low-ESR capacitor (typically 0.1–1µF ceramic + 10µF electrolytic) must be placed between VB and VS. The IC provides no internal charge pump or diode; proper sizing prevents VBS undervoltage during sustained high-duty operation.

IR2154S 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:: Synchronous

Number of Drivers:: 2

Gate Type:: N-Channel MOSFET

Voltage - Supply:: 10V ~ 15.6V

Logic Voltage - VIL, VIH:: -

Current - Peak Output (Source, Sink):: -

Input Type:: RC Input Circuit

High Side Voltage - Max (Bootstrap):: 600 V

Rise / Fall Time (Typ):: 80ns, 45ns

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

IR2154S FAQ

1.How can I place an order for IR2154S through Aetrix?

Please submit a Request for Quotation (RFQ) for IR2154S 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 IR2154S reliable?

The price and inventory of IR2154S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2154S is usually 5 days.

3.What payment methods are accepted for IR2154S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2154S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR2154S?

IR2154S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR2154S 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 IR2154S?

For technical support, including IR2154S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2154S requirements.

6.How does Aetrix verify that IR2154S is sourced from the original manufacturer or authorized distributors?

All IR2154S 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 IR2154S meets industry standards.

7.What is the process for return or replacement of IR2154S?

All IR2154S units undergo pre-shipment inspection (PSI). If there is an issue with IR2154S, 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 IR2154S part is unused and in its original packaging.

Return procedure for IR2154S:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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