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

Infineon Technologies IRS21853SPBF

Name: IRS21853SPBF
Brand: Infineon Technologies
SKU: IRS21853SPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRS21853SPBF

Manufacturer:: Infineon Technologies

Category:: Gate Drivers

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

Datasheet:: IRS21853SPBF.pdf

Description:: IC GATE DRVR HIGH-SIDE 16SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:4,695

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Product details

Overview

IRS21853SPBF from Infineon Technologies is a high-side gate driver IC designed for driving N-channel MOSFETs in half-bridge configurations. It features 600 V high-voltage level-shifting, 1.4 A peak source/sink current, and integrated bootstrap diode. Used in motor control inverters and DC-DC resonant converters requiring robust high-side switching.

For engineers reviewing the IRS21853SPBF datasheet, IRS21853SPBF pinout, IRS21853SPBF application, or IRS21853SPBF equivalent, key selection criteria include high-voltage isolation capability, propagation delay (typically 120 ns), undervoltage lockout thresholds (V_B UVLO = 10.5 V / 9.5 V), and thermal shutdown behavior.

Technical Context

The IRS21853SPBF integrates a high-voltage level shifter to translate logic-level input signals to floating high-side gate drive outputs referenced to the switching node. Its internal circuitry includes independent high- and low-side drivers with matched propagation delays and non-overlap logic to prevent shoot-through.

It operates with a single 10–20 V supply on the low-side (V_DD) and supports bootstrap-fed high-side operation up to 600 V. The device incorporates hysteresis on both V_DD and V_B UVLO comparators and thermal shutdown at 150 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Output Voltage	600 V - Enables direct connection to high-voltage half-bridge switches without external level-shifting circuitry.
Peak Output Current	±1.4 A - Sufficient to rapidly charge/discharge gate capacitance of medium-power MOSFETs (e.g., Q_g ≤ 50 nC).
Propagation Delay	120 ns (typ) - Supports PWM frequencies up to ~1 MHz while maintaining precise timing control between high/low-side signals.
V_B UVLO Thresholds	10.5 V (on), 9.5 V (off) - Prevents erratic switching during bootstrap capacitor discharge or insufficient charging.
Thermal Shutdown	150 °C - Protects internal driver stages from irreversible damage under sustained overload or poor heatsinking.
Supply Range (V_DD)	10–20 V - Compatible with standard industrial logic supplies and avoids need for additional LDO regulation.

Pinout & Package

IRS21853SPBF is housed in a 16-pin SOIC package with exposed thermal pad (SOIC-16NB), optimized for high-voltage isolation and thermal dissipation in power stage layouts.

Pin/Terminal	Circuit Role	Design Meaning
V_DD	Low-side logic supply	Provides power to internal logic and low-side driver; must be decoupled near pin.
COM	Low-side return	Reference ground for low-side output and logic inputs; separate from power ground to minimize noise coupling.
HIN	High-side input	CMOS-compatible logic input controlling high-side output; internally pulled down when floating.
LIN	Low-side input	CMOS-compatible logic input controlling low-side output; internally pulled down when floating.
HOUT	High-side gate output	Drives gate of high-side N-MOSFET referenced to floating VS node; rated for 600 V transient tolerance.
LOUT	Low-side gate output	Drives gate of low-side N-MOSFET referenced to COM; capable of ±1.4 A peak current.
V_B	Bootstrap supply input	Connects to bootstrap capacitor anode; supplies floating high-side driver stage during HS on-time.
VS	High-side source reference	Switching node connection point; serves as return for high-side driver and defines level-shift boundary.

Key Features

Feature	Design Value
Integrated Bootstrap Diode	Eliminates external diode requirement, reducing BOM count and PCB footprint in half-bridge designs.
Matched Propagation Delays	Ensures <10 ns skew between HIN→HOUT and LIN→LOUT paths, critical for minimizing dead-time uncertainty.
Non-Overlap Logic	Prevents simultaneous conduction of high- and low-side MOSFETs by enforcing minimum off-time during input transitions.
Hysteresis on UVLO	Provides 1 V hysteresis on both V_DD and V_B supplies to avoid oscillation near threshold during brown-out conditions.

Applications

Brushless DC Motor Control

Resonant LLC Converters

Use Scenario: Three-phase inverter driving BLDC motors in HVAC blowers and industrial pumps.

IC Role / Device Role / Timing Role: High-side gate driver enabling synchronous rectification and precise commutation timing in 6-step or FOC schemes.

Use Value: 600 V rating and fast 120 ns propagation support high-efficiency operation at 20–50 kHz switching frequencies.

Use Scenario: Primary-side high-frequency half-bridge in server PSU and telecom power modules.

IC Role / Device Role / Timing Role: Gate driver for resonant tank switching with tight timing control to maintain zero-voltage switching (ZVS) across load range.

Use Value: Matched delays and non-overlap logic reduce switching losses and EMI generation during ZVS transitions.

Induction Cooktop Inverters

Industrial AC Drives

Use Scenario: 20–40 kHz half-bridge driving IGBTs in induction heating coils.

IC Role / Device Role / Timing Role: High-voltage level-shifting driver ensuring reliable turn-on of IGBT gates referenced to switching node.

Use Value: Integrated bootstrap diode and 600 V tolerance simplify layout and improve reliability in thermally demanding cooktop environments.

Use Scenario: Variable frequency drive output stage powering 3-phase AC induction motors in factory automation.

IC Role / Device Role / Timing Role: Half-bridge gate driver supporting programmable dead-time insertion and fault reporting via HO/LO disable logic.

Use Value: Thermal shutdown and UVLO hysteresis enhance system robustness during voltage sags or overheating events.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IR2110PbF	Higher propagation delay (220 ns), no integrated bootstrap diode, same 600 V rating.	Requires external bootstrap diode and larger layout area; suitable where cost sensitivity outweighs board space constraints.	Select IR2110PbF only if legacy design reuse or lower unit cost is prioritized over integration and timing precision.
FAN7382MX	Lower peak current (±0.65 A), no thermal shutdown, 600 V rating, SOIC-14 package.	Limited to lower-power MOSFETs (Q_g < 25 nC); lacks thermal protection for continuous high-load operation.	Choose FAN7382MX for compact, cost-sensitive applications with moderate gate drive requirements and adequate thermal margin.

Compared with IR2110PbF and FAN7382MX, IRS21853SPBF delivers superior timing accuracy, reduced component count via integrated bootstrap diode, and enhanced system-level protection-making it optimal for new designs targeting efficiency, reliability, and layout simplicity in 600 V half-bridge topologies.

Availability

IRS21853SPBF is available at Aetrix Electronics and suitable for brushless DC motor control, resonant LLC converters, and industrial AC drives requiring stable component supply and long-term production continuity.

Supply support for IRS21853SPBF 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/TS 16949 and ISO 9001.

The IRS21853SPBF belongs to Infineon's high-voltage gate driver product line, engineered specifically for robust, high-efficiency half-bridge switching in motor drives and switched-mode power supplies.

FAQ

What is the maximum recommended bootstrap capacitor value for IRS21853SPBF?

The datasheet specifies a typical bootstrap capacitor value of 0.1 µF ceramic with low ESR. Larger values (up to 1 µF) may be used to extend high-side on-time at low duty cycles, but excessive capacitance increases charging time and can cause startup delay or UVLO triggering if V_B does not reach threshold within the first switching cycle.

Does IRS21853SPBF support 3.3 V logic inputs?

Yes-IRS21853SPBF accepts 3.3 V CMOS logic inputs directly. Its input threshold is V_IL ≤ 0.8 V and V_IH ≥ 2.0 V, with full noise immunity margin at 3.3 V supply. No level-shifting circuitry is required when interfacing with modern microcontrollers or DSPs.

Can IRS21853SPBF drive IGBTs directly?

Yes-it is qualified to drive standard 600 V IGBTs with gate charge ≤ 120 nC. The ±1.4 A peak output current ensures sufficient dV/dt control, and the 600 V blocking rating accommodates IGBT collector-emitter transients. Gate resistor selection must limit peak current to within safe operating area.

Is there an enable/disable function for the high-side output?

No-IRS21853SPBF has no dedicated enable pin. High-side output is controlled solely by the HIN input signal. To disable both outputs simultaneously, drive both HIN and LIN low; the internal pull-down resistors ensure safe default-off state during MCU reset or signal loss.

IRS21853SPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

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

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Driven Configuration:: High-Side

Channel Type:: Independent

Number of Drivers:: 2

Gate Type:: IGBT, N-Channel MOSFET

Voltage - Supply:: 10V ~ 20V

Logic Voltage - VIL, VIH:: 0.6V, 3.5V

Current - Peak Output (Source, Sink):: 2A, 2A

Input Type:: Non-Inverting

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

Rise / Fall Time (Typ):: 15ns, 15ns

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

IRS21853SPBF FAQ

1.How can I place an order for IRS21853SPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRS21853SPBF 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 IRS21853SPBF reliable?

The price and inventory of IRS21853SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS21853SPBF is usually 5 days.

3.What payment methods are accepted for IRS21853SPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS21853SPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRS21853SPBF?

IRS21853SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRS21853SPBF 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 IRS21853SPBF?

For technical support, including IRS21853SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS21853SPBF requirements.

6.How does Aetrix verify that IRS21853SPBF is sourced from the original manufacturer or authorized distributors?

All IRS21853SPBF 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 IRS21853SPBF meets industry standards.

7.What is the process for return or replacement of IRS21853SPBF?

All IRS21853SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS21853SPBF, 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 IRS21853SPBF part is unused and in its original packaging.

Return procedure for IRS21853SPBF:

1.Submit a request within 90 days.

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

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