Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Infineon Technologies IR21368STRPBF

Name: IR21368STRPBF
Brand: Infineon Technologies
SKU: IR21368STRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: IR21368STRPBF

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

Package:: 28-SOIC (0.295", 7.50mm Width)

Datasheet:: IR21368STRPBF.pdf

Description:: IC GATE DRVR HALF-BRIDGE 28SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,020

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

IR21368STRPBF from Infineon Technologies is a high-voltage, high-speed 3-phase bridge driver IC with three independent half-bridge gate drivers for N-channel MOSFETs and IGBTs. It operates up to +600V on the high-side floating channels, features 400ns/380ns typical turn-on/turn-off propagation delay, 3.3V logic compatibility, and integrated over-current shutdown with externally programmable fault-clear delay via RCIN. It is used in industrial motor inverters and servo drives requiring robust bootstrap-based gate drive.

For engineers reviewing the IR21368STRPBF datasheet, IR21368STRPBF pinout, IR21368STRPBF application, or IR21368STRPBF equivalent, key selection criteria include its 8.9V/8.2V VCC/VBS undervoltage lockout thresholds, 4.3V ITRIP threshold, out-of-phase high-side output logic, and SOIC-28 package compatibility with thermal resistance of 78°C/W.

Technical Context

The IR21368STRPBF integrates three matched HVIC-based floating channel drivers with internal level shifters, cross-conduction prevention logic, and independent UVLO per channel. Its architecture supports bootstrap operation with VBx–VSx offset up to +20V and VSx referenced to COM from –5V to +600V.

It implements a dominant-set latch for fault handling, with FAULT signal assertion on over-current (via external ITRIP resistor) or supply undervoltage, followed by automatic recovery after RCIN voltage exceeds 8V - programmable via external R-C network. Input filtering provides 200ns noise immunity on HIN/LIN/EN pins.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BS Range	10–20V: Enables reliable bootstrap capacitor recharge across wide input bus voltages in 3-phase inverter stages.
t_on/t_off	400ns/380ns typ.: Supports PWM switching up to ~500 kHz while maintaining dead-time control integrity.
V_ITRIP	4.3V threshold: Sets precise current-limit trip point using standard 0.1Ω sense resistor at 43A peak (with gain compensation).
V_CC UVLO	8.9V+/8.2V−: Prevents erratic operation during brown-out while allowing startup from 12V auxiliary rails.
Logic Compatibility	3.3V CMOS/LSTTL: Direct interface with modern microcontrollers and FPGA I/O without level-shifting circuitry.
dV/dt Immunity	50 V/ns: Sustains stable operation under fast-switching transients common in SiC/GaN-based inverter designs.
Output Drive	200mA/350mA pulsed IO+: Delivers sufficient peak current to charge/discharge 1000pF gate loads within timing specs.

Pinout & Package

IR21368STRPBF is housed in a 28-pin SOIC package (body width 7.5mm, JEDEC MS-013AC), optimized for thermal dissipation (R_thJA = 78°C/W) and PCB layout simplicity in high-density motor control boards.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Low-side and logic supply input	Provides 10–20V bias for internal logic, level shifters, and low-side drivers; decoupling required near pin.
VSS	Logic ground reference	Separate from power ground (COM); must be tied to controller ground to avoid noise coupling into logic inputs.
COM	Power ground reference	Common return for all low-side outputs (LO1–LO3); connects to system power ground plane.
HIN1–HIN3	High-side input signals	Inverted logic: high input disables HO output; enables shoot-through prevention when paired with LIN.
LIN1–LIN3	Low-side input signals	Inverted logic: high input disables LO output; synchronized with HIN via internal dead-time insertion.
HO1–HO3	High-side gate drive outputs	Floating outputs referenced to VS1–VS3; drive bootstrap-fed high-side N-MOSFET/IGBT gates.
LO1–LO3	Low-side gate drive outputs	Ground-referenced outputs; sink/source 200mA/350mA to switch low-side devices rapidly.
VS1–VS3	High-side floating supply return	Connects to source of high-side power device; defines local ground for HOx output stage.
VB1–VB3	High-side floating supply input	Accepts bootstrap capacitor voltage (up to 625V absolute max); powers high-side driver stage.
ITRIP	Over-current sense input	Analog input monitoring external shunt; asserts FAULT when voltage exceeds 4.3V (±0.45V hysteresis).
RCIN	Fault clear timing input	RC network sets auto-reset delay (1.3–2ms); voltage >8V triggers FAULT pin release.
EN	Global enable/disable input	Active-low: pulls all six outputs low when asserted; includes 0.8V hysteresis for noise margin.
FAULT	Open-drain fault indicator	Drives low during UVLO or over-current; requires external pull-up; compatible with MCU interrupt inputs.

Key Features

Feature	Design Value
Matched propagation delay	≤70ns channel-to-channel skew ensures synchronous 3-phase PWM edge alignment for reduced torque ripple.
Cross-conduction prevention logic	Hardware-enforced dead-time ≥220ns prevents shoot-through during switching transitions without firmware overhead.
Externally programmable fault clear	RCIN pin allows precise tuning of fault recovery time (1.3–2ms), enabling safe restart after transient overloads.
–5V to +600V VS tolerance	Supports direct connection to high-voltage DC bus in 400V-class inverters without external level-shifting isolation.
Lower di/dt gate driver	Reduced slew rate minimizes EMI generation and improves noise immunity in electrically noisy motor drive environments.

Applications

Industrial Motor Inverters

Servo Drive Controllers

Use Scenario: Three-phase AC induction motor control in HVAC compressors and pump systems operating from 380–480V AC mains.

IC Role / Device Role / Timing Role: Gate driver for six N-channel IGBTs in two-level voltage-source inverter topology, delivering synchronized PWM with <70ns timing skew.

Use Value: Enables >97% inverter efficiency at 4kHz switching frequency while maintaining thermal stability under continuous 15A RMS load.

Use Scenario: High-bandwidth position control in robotic joint actuators using permanent magnet synchronous motors (PMSM).

IC Role / Device Role / Timing Role: High-fidelity gate driver with matched propagation delay and 220ns hardware dead-time for field-oriented control (FOC) implementation.

Use Value: Reduces torque ripple below 1.2% THD and supports 20kHz PWM without gate drive-induced phase error.

Electric Vehicle Onboard Chargers

Uninterruptible Power Supplies

Use Scenario: Bidirectional AC/DC conversion stage in 6.6kW OBCs, where the same inverter handles grid-tie and battery charging modes.

IC Role / Device Role / Timing Role: Robust 600V-rated gate driver supporting both hard-switched and soft-switched (ZVS) topologies with fault-protected operation.

Use Value: Survives 600V DC bus transients and enables seamless mode transition with <2ms fault recovery via RCIN programming.

Use Scenario: Double-conversion UPS systems requiring high reliability and fast response to load steps or utility failures.

IC Role / Device Role / Timing Role: Critical gate driver in the inverter stage, providing fail-safe shutdown on over-current and brown-out conditions.

Use Value: Guarantees uninterrupted output during 10ms grid dropout via coordinated UVLO hysteresis and latched FAULT signaling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-phase gate driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR21363STRPBF	Higher V_CC/V_BS UVLO (11.2V/11.0V) and 0.46V ITRIP threshold; same 400ns/380ns timing.	Better suited for 15V auxiliary rail systems; lower current-sense sensitivity requires smaller shunt resistors.	Select when using 15V logic supplies and needing tighter current sensing resolution at low currents.
IR21366STRPBF	Faster timing (250ns/180ns), lower VIH/VIL (2.0V/1.3V), and 0.46V ITRIP; different high-side logic polarity.	Optimized for high-frequency SiC inverters (>100kHz); in-phase high-side logic simplifies FOC timing in some architectures.	Choose for >50kHz switching or when interfacing with low-voltage microcontrollers without level shifters.

Compared with IR21363STRPBF and IR21366STRPBF, the IR21368STRPBF offers the lowest V_CC UVLO (8.9V) and highest ITRIP threshold (4.3V), making it ideal for cost-sensitive 12V-powered industrial drives where robust brown-out tolerance and simplified current-sensing design are prioritized over ultra-high speed.

Availability

IR21368STRPBF is available at Aetrix Electronics and suitable for industrial motor inverters, servo drive controllers, onboard EV chargers, and uninterruptible power supplies requiring stable component supply and long-term production continuity.

Supply support for IR21368STRPBF 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 manufacturer specializing in power management, automotive electronics, and industrial control ICs, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

The IR2136x family belongs to Infineon's high-voltage gate driver product line, engineered specifically for ruggedized 3-phase inverter applications in industrial automation, renewable energy, and electric mobility systems.

FAQ

What is the maximum allowable dV/dt on the VS pins of the IR21368STRPBF?

The IR21368STRPBF is rated for 50 V/ns dV/dt on VS1–VS3 pins, verified per datasheet Absolute Maximum Ratings. This specification ensures reliable level-shifter operation during fast-switching events in 600V-class inverters, eliminating need for external dV/dt snubbers in most layouts.

How does the RCIN pin control fault recovery timing?

The RCIN pin uses an internal comparator with 8V threshold and 3V hysteresis. An external RC network (e.g., 2 MΩ + 1 nF) charges RCIN to 8V in 1.3–2 ms, releasing the FAULT pin from low state. This provides deterministic, hardware-based reset timing independent of MCU firmware.

Is the high-side output logic inverting or non-inverting on the IR21368STRPBF?

The IR21368STRPBF uses inverting high-side logic: a logic-high HIN input forces HO output low, and vice versa. This matches the default behavior of IR2136/IR21363/IR21365/IR21367/IR21368 variants and simplifies dead-time insertion with standard PWM generators.

Can the IR21368STRPBF drive both MOSFETs and IGBTs?

Yes - the IR21368STRPBF is explicitly characterized for both N-channel MOSFETs and IGBTs, with 200mA/350mA pulsed output drive capability and 600V floating channel rating. Its 10–20V V_BS range accommodates typical IGBT gate-emitter voltage requirements (15–18V) and MOSFET V_GS needs (10–15V).

IR21368STRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 28-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: Half-Bridge

Channel Type:: 3-Phase

Number of Drivers:: 6

Gate Type:: IGBT, N-Channel MOSFET

Voltage - Supply:: 10V ~ 20V

Logic Voltage - VIL, VIH:: 0.8V, 2.5V

Current - Peak Output (Source, Sink):: 200mA, 350mA

Input Type:: Inverting

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

Rise / Fall Time (Typ):: 125ns, 50ns

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 28-SOIC

IR21368STRPBF FAQ

1.How can I place an order for IR21368STRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IR21368STRPBF 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 IR21368STRPBF reliable?

The price and inventory of IR21368STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR21368STRPBF is usually 5 days.

3.What payment methods are accepted for IR21368STRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR21368STRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR21368STRPBF?

IR21368STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR21368STRPBF 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 IR21368STRPBF?

For technical support, including IR21368STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR21368STRPBF requirements.

6.How does Aetrix verify that IR21368STRPBF is sourced from the original manufacturer or authorized distributors?

All IR21368STRPBF 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 IR21368STRPBF meets industry standards.

7.What is the process for return or replacement of IR21368STRPBF?

All IR21368STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR21368STRPBF, 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 IR21368STRPBF part is unused and in its original packaging.

Return procedure for IR21368STRPBF:

1.Submit a request within 90 days.

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

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…