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

Infineon Technologies IR2131S

Name: IR2131S
Brand: Infineon Technologies
SKU: IR2131S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR2131S

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

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

Datasheet:: IR2131S.pdf

Description:: IC GATE DRVR HALF-BRIDGE 28SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IR2131S from Infineon Technologies is a high-voltage, high-speed 3-phase gate driver IC with independent high-side and low-side outputs. It integrates six drivers (3 high-side + 3 low-side), supports up to 600 V offset voltage, delivers ±160 mA / +360 mA peak output current, operates with 10–20 V gate supply, and features matched 1.3 µs / 0.6 µs typical propagation delays. It is used in 3-phase motor inverters for industrial AC drives.

For engineers reviewing the IR2131S datasheet, IR2131S pinout, IR2131S application, or IR2131S equivalent, key selection criteria include floating channel dV/dt immunity, integrated over-current shutdown via ITRIP, undervoltage lockout on both VBS and VCC, 2.5 V logic compatibility, and fault reporting via open-drain FAULT output.

Technical Context

The IR2131S employs proprietary HVIC technology to enable monolithic high-side floating channels tolerant to −5 V to +600 V VS offset and immune to >50 V/ns dV/dt transients. Its logic inputs accept CMOS/LSTTL levels down to 2.5 V, and all six drivers feature matched propagation delay (±50 ns) for precise PWM timing in high-frequency inverters.

It implements dual undervoltage lockout (VBSUV: 7.8–9.2 V, VCCUV: 7.8–9.2 V), a dedicated current-sense input (ITRIP threshold: 400–600 mV), and a programmable shutdown input (SD threshold: 0.9–2.1 V). The FAULT output signals any UVLO or over-current event with 400–1200 ns latency.

Key Specifications

Parameter	Value and Actual Design Meaning
VOFFSET max	600 V - enables direct driving of N-channel MOSFETs/IGBTs in high-side configurations up to 600 V bus voltage
IO+ / IO−	160 mA / 360 mA - sufficient peak current to charge/discharge gate capacitance of medium-power switches (e.g., IRF840) at ≥20 kHz
VOUT range	10–20 V - configurable gate drive voltage supporting both logic-level and standard-threshold power devices
ton / toff typ	1.3 µs / 0.6 µs - ensures minimal dead-time uncertainty in 3-phase bridge control with tight timing margins
Logic compatibility	2.5 V - interoperates directly with microcontrollers, DSPs, and FPGA I/O without level-shifting
ITRIP threshold	400–600 mV - allows precise over-current detection using low-value, low-power sense resistors (e.g., 5–10 mΩ)
FAULT output	Open-drain - enables wired-OR fault bus implementation across multiple drivers in multi-inverter systems

Pinout & Package

IR2131S is available in 28-lead SOIC (wide body, MS-013AE) package with exposed thermal pad (not electrically connected). Pin assignments are identical across IR2131J/S/P variants.

Pin/Terminal	Circuit Role	Design Meaning
HIN1,2,3	High-side logic input	Inverted control signal for HO1,2,3; enables complementary PWM with external dead-time generation
LIN1,2,3	Low-side logic input	Non-inverted control signal for LO1,2,3; synchronized with HIN for half-bridge operation
HO1,2,3	High-side gate output	Floating output referenced to VS1,2,3; drives gates of high-side N-MOS/IGBT with bootstrap supply VB1,2,3
LO1,2,3	Low-side gate output	Ground-referenced output; drives low-side switches with fast rise/fall times (80/40 ns typ)
VB1,2,3	Floating supply input	Bootstrap capacitor connection point for each high-side channel; must be ≥10 V above VS
VS1,2,3	Floating return	Source/emitter reference for corresponding high-side output; withstands −5 V to +600 V relative to COM
VCC	Logic & low-side supply	Single 10–20 V rail powering internal logic, low-side drivers, and input buffers
VSS	Logic ground	Reference for all logic inputs (HIN/LIN/SD/FLT-CLR/ITRIP); tied to COM in most layouts
COM	Power ground	Return path for LO outputs and current-sense circuitry; must be low-inductance connection
ITRIP	Over-current sense input	Analog input monitoring shunt voltage; triggers shutdown when threshold exceeded (400–600 mV)
SD	Shutdown control	Active-high input forcing all outputs low; overrides normal logic and fault conditions
FLT-CLR	Fault clear	Active-low input resetting FAULT latch after fault condition is removed
FAULT	Fault status output	Open-drain output pulled low during UVLO, over-current, or SD assertion; requires external pull-up

Key Features

Feature	Design Value
Floating channel architecture	Enables direct high-side drive up to 600 V without external level shifters or isolated supplies
Matched propagation delay	Ensures <±50 ns skew between all six outputs-critical for minimizing shoot-through risk in 3-phase bridges
Dual UVLO protection	Independent lockout on VBS and VCC prevents erratic switching during supply brownouts or bootstrap failure
Programmable over-current shutdown	ITRIP input accepts analog voltage from current-sense resistor, enabling scalable trip thresholds without component change
Integrated fault reporting	Open-drain FAULT output simplifies system-level fault aggregation and controller interrupt handling

Applications

Industrial AC Motor Drives

Brushless DC (BLDC) Motor Controllers

Use Scenario: Three-phase inverter stage in variable-frequency drives for pumps, fans, and compressors operating at 20–100 kHz switching frequency.

IC Role / Device Role / Timing Role: Gate driver providing isolated, synchronized high/low-side control for IGBT modules with 600 V blocking capability.

Use Value: Matched propagation delays reduce required dead time by ≥100 ns versus discrete solutions, improving efficiency and torque linearity.

Use Scenario: Rotor position–sensored commutation in HVAC blowers and power tools requiring compact, thermally efficient 3-phase drive.

IC Role / Device Role / Timing Role: High-speed gate driver delivering 160 mA peak current to charge 2 nF gate capacitance within 100 ns.

Use Value: 2.5 V logic compatibility eliminates level-shifters, reducing BOM count and PCB area in MCU-based controllers.

Solar Microinverters

Uninterruptible Power Supplies (UPS)

Use Scenario: DC–AC conversion stage converting PV panel output to grid-synchronized 230 VAC using transformerless topology.

IC Role / Device Role / Timing Role: High-side driver with dV/dt immunity ensuring reliable operation despite rapid common-mode transients on split-phase outputs.

Use Value: Tolerance to 50 V/ns dV/dt eliminates need for snubbers or ferrite beads on high-side gate traces, lowering EMI filter cost.

Use Scenario: Online double-conversion UPS where inverter stage must sustain 100% load during mains failure with <10 ms switchover.

IC Role / Device Role / Timing Role: Fault-tolerant gate driver with ITRIP-based over-current protection and FAULT latching for system-level safety monitoring.

Use Value: Integrated shutdown response (<1 µs) prevents IGBT destruction during short-circuit events, meeting UL 1741 fault-clearance requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2130S	Same pinout and architecture but lacks ITRIP input; uses external comparator for over-current detection	Requires additional external components (comparator, reference, hysteresis network) for current protection	Select when design already includes analog current sensing infrastructure and board space is constrained
IRS2330JPbF	Higher peak output current (±600 mA), integrated bootstrap diode, no FAULT latch-only pulse fault indication	Supports faster switching of larger MOSFETs but lacks persistent fault signaling for safety-critical systems	Select for high-frequency (>100 kHz) resonant converters where fast gate drive outweighs fault logging needs

Compared with IR2130S and IRS2330JPbF, the IR2131S uniquely combines integrated ITRIP-based over-current shutdown, latched FAULT reporting, and matched propagation delay in a single SOIC package-making it optimal for safety-compliant industrial inverters where reliability and reduced component count are prioritized.

Availability

IR2131S is available at Aetrix Electronics and suitable for industrial AC motor drives, brushless DC motor controllers, solar microinverters, and uninterruptible power supplies requiring stable component supply and long-term manufacturing continuity.

Supply support for IR2131S 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, and industrial control ICs, with leadership in high-voltage gate driver and IGBT technologies.

The IR21xx family was designed specifically for robust 3-phase inverter gate driving in harsh industrial environments-emphasizing dV/dt immunity, integrated protection, and monolithic integration to replace discrete driver + protection solutions.

FAQ

What is the maximum allowable dV/dt on the VS pins of the IR2131S?

The IR2131S is rated for up to 50 V/ns dV/dt on its VS1,2,3 pins under recommended operating conditions. This specification is verified per Figure 2 test circuit in the datasheet and ensures reliable operation without false triggering during fast-switching events in 600 V bus applications. Exceeding this rate may cause unintended high-side turn-on due to capacitive coupling into the floating channel.

Can the IR2131S drive both MOSFETs and IGBTs?

Yes-the IR2131S is explicitly characterized for driving both N-channel power MOSFETs and IGBTs, as confirmed in Figures 7–10 of the datasheet showing junction temperature vs. frequency curves with IRF820, IRF830, IRF840, and IRF450 devices. Its 160 mA/360 mA output current and 10–20 V VOUT range accommodate typical gate charge requirements for devices up to 50 A continuous current.

How does the ITRIP input function, and what external components are needed?

The ITRIP input monitors voltage across an external current-sense resistor placed in the inverter's low-side leg or phase leg. When the sensed voltage exceeds 400–600 mV (typical), the device immediately disables all six outputs and asserts FAULT. No external comparator or hysteresis is required-the threshold and blanking time (400 ns min) are internal. A simple RC filter (e.g., 100 Ω + 100 pF) is recommended to suppress noise.

Is the IR2131S pin-compatible with the IR2131J or IR2131PbF variants?

Yes-all IR2131 variants (J, S, PbF) share identical pinout, electrical specifications, and functional behavior. The suffix denotes package type and RoHS compliance: IR2131J = 28-lead PDIP, IR2131S = 28-lead SOIC, IR2131PbF = lead-free version of either. Layouts designed for IR2131S are mechanically and electrically interchangeable with IR2131J when using appropriate footprint adapters.

IR2131S Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: Half-Bridge

Channel Type:: Independent

Number of Drivers:: 6

Gate Type:: IGBT, N-Channel MOSFET

Voltage - Supply:: 10V ~ 20V

Logic Voltage - VIL, VIH:: 0.8V, 2.2V

Current - Peak Output (Source, Sink):: 250mA, 500mA

Input Type:: Inverting

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

Rise / Fall Time (Typ):: 80ns, 40ns

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 28-SOIC

IR2131S FAQ

1.How can I place an order for IR2131S through Aetrix?

Please submit a Request for Quotation (RFQ) for IR2131S 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 IR2131S reliable?

The price and inventory of IR2131S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2131S is usually 5 days.

3.What payment methods are accepted for IR2131S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2131S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR2131S?

IR2131S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR2131S 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 IR2131S?

For technical support, including IR2131S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2131S requirements.

6.How does Aetrix verify that IR2131S is sourced from the original manufacturer or authorized distributors?

All IR2131S 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 IR2131S meets industry standards.

7.What is the process for return or replacement of IR2131S?

All IR2131S units undergo pre-shipment inspection (PSI). If there is an issue with IR2131S, 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 IR2131S part is unused and in its original packaging.

Return procedure for IR2131S:

1.Submit a request within 90 days.

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

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