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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Full Half-Bridge (H Bridge) Drivers

Infineon Technologies IR2086STRPBF

Name: IR2086STRPBF
Brand: Infineon Technologies
SKU: IR2086STRPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IR2086STRPBF

Manufacturer:: Infineon Technologies

Category:: Full Half-Bridge (H Bridge) Drivers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: IR2086STRPBF.pdf

Description:: IC GATE DRVR HALF-BRIDGE 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IR2086STRPBF from Infineon Technologies is a self-oscillating full-bridge gate driver IC designed for 36–75V DC-bus converters in 48V distributed power systems. It integrates high-side and low-side drivers with ±1.2A peak output current, 500kHz per-channel switching frequency, 50–200ns adjustable dead time, and ±25ns pulse edge matching - enabling compact, primary-side-controlled full-bridge topologies in telecom and server power supplies.

For engineers reviewing the IR2086STRPBF datasheet, IR2086STRPBF pinout, IR2086STRPBF application, or IR2086STRPBF equivalent, key selection criteria include bootstrap-compatible floating channel operation up to +100Vdc offset, programmable overcurrent hiccup delay (10µs–1s), internal soft start, undervoltage lockout (7.25V typ), and SOIC-16 package compatibility with high-frequency layout constraints.

Technical Context

The IR2086STRPBF implements a self-timed oscillator using external RT and CT components to generate complementary 50% duty-cycle outputs per channel, with dead time set solely by CT value (47–1000pF). Its dual high-side level shifters support independent VB1/VS1 and VB2/VS2 rails up to +100Vdc offset, each with dv/dt noise immunity and bootstrap supply regulation.

Overcurrent protection uses a single CS pin referenced to COM1, triggering shutdown when sensed voltage exceeds 270mV (typ), followed by a capacitor-programmed restart delay at the DELAY pin. Internal UVLO disables all outputs if VCC drops below 7.25V, and soft start ensures symmetrical pulse width ramp-up across HO1/LO1 and HO2/LO2 during power-up.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	9.5–15V - Ensures stable bias for gate drive logic and level shifters; UVLO activates below 7.25V to prevent erratic switching.
V_OFFSET Max	100Vdc - Supports bootstrap high-side operation with VS node up to 100V above COM, critical for 48V bus full-bridge designs.
f_OSC Max	500kHz per channel - Enables high-frequency transformer sizing and reduced passive component volume in isolated DC-DC converters.
I_O	±1.2A peak - Sufficient to directly drive standard power MOSFET gates (Qg ≤ 20nC) without external buffers in 1–3kW applications.
Pulse Matching	±25ns - Minimizes shoot-through risk during high-speed transitions by tightly aligning HO/LO edge timing across both half-bridges.
Dead Time Range	50–200ns - Adjustable via CT capacitor (47–1000pF) to balance efficiency (shorter DT) and safety margin (longer DT) in hard-switched bridges.
OC Threshold	270mV (typ) at CS pin - Sets current limit based on R_SENSE value; allows precise, scalable overcurrent protection without secondary sensing circuitry.

Pinout & Package

IR2086STRPBF is housed in a 16-lead narrow-body SOIC (MS-012AC) package with exposed pad not electrically connected. Pin assignments are validated per Infineon PD-60226 revB and match functional block diagram and lead definitions in official documentation.

Pin/Terminal	Circuit Role	Design Meaning
1 (VB1)	High-side floating supply input	Bootstrap power rail for HO1 driver; must be decoupled with low-ESR ceramic cap near pin to sustain 100Vdc offset.
2 (HO1)	High-side gate drive output	Drives gate of upper MOSFET in first half-bridge; ±1.2A capability supports fast turn-on/turn-off with minimal ringing.
3 (VS1)	High-side floating return	Direct connection point to source of Q1; trace length must be minimized to reduce dv/dt-induced false triggering.
4 (COM2)	Signal/power ground reference	Must be shorted to COM1 externally; serves as common return for LO1/LO2, CS, CT, DELAY, and VCC circuits.
5 (LO2)	Low-side gate drive output	Drives gate of lower MOSFET in second half-bridge; referenced to COM1/COM2; immune to high dv/dt on VS nodes.
6 (VS2)	High-side floating return (channel 2)	Direct connection to source of Q2; independent from VS1 to support asymmetrical bridge configurations.
7 (HO2)	High-side gate drive output (channel 2)	Complementary output to LO2; matched timing (±25ns) ensures synchronous full-bridge commutation.
8 (VB2)	High-side floating supply input (channel 2)	Dedicated bootstrap rail for HO2; requires separate Schottky diode and ceramic cap to avoid cross-talk with VB1.
9 (VCC)	IC bias supply input	Supplies internal logic, oscillators, and level shifters; bypassed with 100nF ceramic cap to COM1/COM2 for noise immunity.
10 (COM1)	Primary signal/power ground	Common reference for VCC, CS, CT, DELAY, and all low-side drivers; must connect to low-impedance PCB ground plane.
11 (CS)	Overcurrent sense input	Monitors R_SENSE voltage drop; trip threshold 270mV (typ); initiates hiccup-mode shutdown and DELAY-timed restart.
12 (CT)	Oscillator timing input	Connects external RT resistor (10–100kΩ) and CT capacitor (47–1000pF) to set f_OSC and dead time simultaneously.
13 (DELAY)	Overcurrent restart delay control	Capacitor-connected pin sets hiccup delay from 10µs to 1s; linear relationship enables precise fault recovery timing.
14 (LO1)	Low-side gate drive output (channel 1)	Drives gate of lower MOSFET in first half-bridge; complements HO1 with matched propagation delay and drive strength.
15 (n/c)	No connect	Internally unused; must remain unconnected and unstubbed to avoid parasitic coupling or EMI.
16 (n/c)	No connect	Internally unused; same handling as pin 15 - no routing, no termination, no thermal pad connection.

Key Features

Feature	Design Value
Self-oscillating architecture	Eliminates need for external clock generator or controller IC - reduces BOM count and layout complexity in isolated DC-DC modules.
Programmable dead time (50–200ns)	Enables optimization of conduction loss vs. shoot-through margin across varying load, temperature, and MOSFET characteristics.
Floating channel with 100Vdc offset rating	Supports direct bootstrap gate drive in high-side positions without auxiliary isolated supplies - simplifies power stage design in 48V systems.
Integrated soft start	Ramps pulse widths symmetrically across all four outputs during power-up, preventing unequal duty cycles that cause transformer saturation.
Hiccup-mode overcurrent protection	Prevents thermal runaway during sustained faults by cycling between shutdown and soft-start recovery - protects MOSFETs and magnetics without latch-off.

Applications

Telecom Rectifier Modules

Server PSU Intermediate Bus Converters

Use Scenario: 48V-to-12V isolated DC-DC conversion in multi-output telecom rectifiers with strict size and efficiency targets.

IC Role / Device Role / Timing Role: Full-bridge gate driver controlling primary-side MOSFETs; provides synchronized 500kHz switching with matched HO/LO edges to minimize transformer core loss.

Use Value: Reduces component count by eliminating external oscillator and dead-time generator; ±25ns pulse matching lowers EMI and improves ZVS feasibility.

Use Scenario: High-density 48V intermediate bus converter in AI accelerator servers requiring >95% efficiency and <10ms fault response.

IC Role / Device Role / Timing Role: Primary-side driver for Si MOSFET-based full-bridge; delivers ±1.2A gate current to switch 30–50nC FETs at 500kHz with programmable dead time.

Use Value: 100Vdc offset tolerance enables robust bootstrap operation under transient bus dips; hiccup-mode OC protection avoids catastrophic failure during GPU load surges.

Industrial 48V Power Distribution Units

Automotive 48V Mild Hybrid DC-DC Converters

Use Scenario: Compact 48V-to-24V/12V conversion in factory automation I/O modules with wide ambient temperature range (-40°C to +125°C).

IC Role / Device Role / Timing Role: Self-timed full-bridge driver with internal UVLO and thermal-safe soft start; operates reliably across full industrial temp range.

Use Value: Dead time stability over temperature (±10ns variation from -40°C to +125°C) maintains consistent efficiency and prevents shoot-through drift.

Use Scenario: Bidirectional 48V–12V DC-DC in 48V mild hybrid vehicles where reliability and fault containment are critical.

IC Role / Device Role / Timing Role: Gate driver for primary-side full-bridge; uses CS pin for current limiting and DELAY pin for configurable restart delay after overload.

Use Value: 10µs–1s hiccup delay range allows tuning for battery protection (fast restart) or system-level fault isolation (slow restart).

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRS2007PBF	Single-channel high-side/low-side driver; no integrated oscillator; requires external PWM input and dead-time control.	Suitable for systems with existing controller ICs; lacks self-oscillation and hiccup-mode OC protection.	Select when precise external timing control is required and board space permits separate oscillator circuitry.
UCC27211D	120V-rated dual high-side/low-side driver with 4A peak current; no built-in oscillator, dead-time adjustment, or OC protection.	Targeted at higher-power, higher-frequency resonant topologies; relies on external controller for sequencing and protection.	Choose for >1kW applications needing higher drive strength and faster rise/fall times (40/20ns), but accept added system complexity.

Compared with IRS2007PBF and UCC27211D, IR2086STRPBF uniquely integrates oscillator, dead-time programming, hiccup-mode overcurrent protection, and soft start in a single SOIC-16 package - reducing total solution size and design effort for cost-sensitive, medium-power 48V full-bridge converters.

Availability

IR2086STRPBF is available at Aetrix Electronics and suitable for telecom rectifier modules, server intermediate bus converters, and industrial 48V power distribution units requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for IR2086STRPBF 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 drivers and silicon carbide solutions.

The IR2086S product line delivers self-oscillating full-bridge drivers optimized for 36–75V DC-bus applications in distributed power architectures - emphasizing integration, layout simplicity, and robust protection for high-reliability 48V systems.

FAQ

What is the maximum allowable voltage offset between VS1/VS2 and COM1?

The absolute maximum high-side floating supply offset voltage (VS1, VS2) is +100Vdc relative to COM1, as specified in the Absolute Maximum Ratings table. Operation beyond this limit risks permanent damage to internal level shifters. Layout best practices require short, low-inductance traces from VS pins to MOSFET sources to prevent inductive flyback exceeding –5V below ground.

How is dead time adjusted, and what is its practical impact on efficiency?

Dead time is set exclusively by the CT capacitor value (47–1000pF), with smaller values yielding shorter dead times (e.g., 50ns at 47pF) and larger values yielding longer ones (e.g., 200ns at 1000pF). Shorter dead time improves conduction efficiency but increases shoot-through risk; longer dead time enhances safety margin at the cost of increased switching loss and potential body-diode conduction in MOSFETs.

Does IR2086STRPBF support bidirectional current sensing or only unidirectional overcurrent protection?

IR2086STRPBF provides unidirectional overcurrent protection via the CS pin, which monitors voltage across a single sense resistor placed on the low-side return path. It does not support bidirectional sensing or reverse-current detection. The comparator triggers only when CS voltage exceeds 270mV (typ), corresponding to forward current through the sense resistor.

Can the two high-side channels (HO1/HO2) operate independently, or are they synchronized?

HO1 and HO2 are fully synchronized and operate with identical frequency, 50% duty cycle, and matched edge timing (±25ns). They share the same internal oscillator and pulse-steering logic - no independent channel control or phase shifting is supported. This ensures strict symmetry required for full-bridge transformer excitation without DC bias accumulation.

IR2086STRPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: -

Applications:: -

Interface:: -

Load Type:: -

Technology:: -

Rds On (Typ):: -

Current - Output / Channel:: -

Current - Peak Output:: -

Voltage - Supply:: 9.5V ~ 15V

Voltage - Load:: -

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Features:: -

Fault Protection:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

IR2086STRPBF FAQ

1.How can I place an order for IR2086STRPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IR2086STRPBF 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 IR2086STRPBF reliable?

The price and inventory of IR2086STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IR2086STRPBF is usually 5 days.

3.What payment methods are accepted for IR2086STRPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IR2086STRPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IR2086STRPBF?

IR2086STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IR2086STRPBF 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 IR2086STRPBF?

For technical support, including IR2086STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IR2086STRPBF requirements.

6.How does Aetrix verify that IR2086STRPBF is sourced from the original manufacturer or authorized distributors?

All IR2086STRPBF 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 IR2086STRPBF meets industry standards.

7.What is the process for return or replacement of IR2086STRPBF?

All IR2086STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IR2086STRPBF, 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 IR2086STRPBF part is unused and in its original packaging.

Return procedure for IR2086STRPBF:

1.Submit a request within 90 days.

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

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