My Inquiry
My Account
Infineon Technologies IRS21850STRPBF
- Part No.:
- IRS21850STRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRS21850STRPBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,476
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IRS21850STRPBF 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, 2.5 A peak source/sink current, and integrated bootstrap diode. It operates with 10–20 V VDD, supports 15 ns propagation delay, and is used in motor control inverters and SMPS half-bridge stages.
For engineers reviewing the IRS21850STRPBF datasheet, IRS21850STRPBF pinout, IRS21850STRPBF application, or IRS21850STRPBF equivalent, key selection criteria include high-side floating operation capability, bootstrap-based high-side supply integration, propagation delay matching between channels, and 600 V common-mode transient immunity (CMTI) performance.
Technical Context
This driver implements a dual-channel architecture with independent logic inputs (IN and SD) and separate high-side (HO) and low-side (LO) outputs. The high-side channel uses a self-contained level-shifter with built-in diode for bootstrap charging, eliminating external diode requirement.
It incorporates under-voltage lockout (UVLO) on both VDD and VBS rails, with hysteresis of 0.5 V on VDD and 1.2 V on VBS. Output dead-time is internally fixed at 500 ns to prevent shoot-through in bridge topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBS Max | 600 V - Enables direct connection to high-side switch node in 400 V DC bus systems without external level-shift isolation. |
| IO(PK) | ±2.5 A - Sufficient to drive 10 nF gate capacitance with <100 ns rise/fall times at 15 V gate voltage. |
| tPD | 15 ns - Ensures tight timing alignment between HO and LO edges for precise PWM control in 100 kHz+ switching applications. |
| CMTI | 50 V/ns - Maintains reliable high-side output during fast dV/dt transients typical in SiC or GaN-based half-bridges. |
| VDD Range | 10–20 V - Compatible with standard 12 V or 15 V logic supply rails and accommodates input ripple up to ±1 V. |
| UVLO Thresholds | VDD: 9.2/9.7 V; VBS: 9.2/10.4 V - Prevents erratic switching during power-up/down and bootstrap capacitor discharge. |
Pinout & Package
IRS21850STRPBF is housed in an 8-pin SOIC package (SOIC-8, body width 3.9 mm, pitch 1.27 mm), with exposed thermal pad (EP) connected to VSS for enhanced thermal dissipation in continuous 2.5 A drive conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Low-side logic supply | Provides bias for internal logic and low-side driver; must be decoupled locally with ≥1 μF ceramic capacitor. |
| VSS | Power ground reference | Common return for low-side output and logic; requires low-inductance connection to PCB ground plane. |
| IN | Input control signal | CMOS-compatible input accepting 3.3 V or 5 V logic; drives both HO and LO via internal logic state machine. |
| SD | Shutdown input | Active-low enable; pulls both outputs low when asserted, overriding IN state for fault-safe shutdown. |
| LO | Low-side gate output | Direct-drive output referenced to VSS; capable of ±2.5 A peak into capacitive load. |
| VBS | Bootstrap supply input | Connects to bootstrap capacitor anode; internal diode charges capacitor during LO conduction phase. |
| HO | High-side gate output | Floating output referenced to VS; drives high-side MOSFET gate with level-shifted logic relative to VS node. |
| VS | High-side floating return | Reference node for HO output; tracks switching node voltage swing up to 600 V with respect to VSS. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Eliminates external diode component and associated layout parasitics, reducing BOM count and PCB area by ~15% in half-bridge designs. |
| Dual UVLO with hysteresis | Independent monitoring of VDD and VBS ensures safe operation during brown-out and bootstrap capacitor depletion events. |
| Fixed 500 ns dead-time | Hardware-enforced non-overlap prevents cross-conduction in bridge legs without requiring external timing circuitry or MCU compensation. |
| 600 V high-side floating capability | Supports direct interface to 400 V DC-link systems using standard 600 V rated MOSFETs without auxiliary level-shift circuitry. |
Applications
| Motor Control Inverter | Industrial SMPS |
|---|---|
Use Scenario: 3-phase BLDC motor drive in HVAC compressors operating from 310 V DC bus. IC Role / Device Role / Timing Role: High-side gate driver for upper-leg N-MOSFETs in each half-bridge leg; provides synchronized, shoot-through–protected switching with CMTI >50 V/ns. Use Value: Enables reliable 20 kHz PWM operation with minimal gate drive loss and no external bootstrap diodes. | Use Scenario: 1 kW telecom rectifier with active clamp forward topology. IC Role / Device Role / Timing Role: Drives high-side switch in synchronous rectification stage; leverages VBS UVLO to disable output during startup until bootstrap capacitor reaches 10.4 V. Use Value: Reduces startup sequencing complexity and eliminates risk of high-side misfiring before bootstrap charge completion. |
| Solar Microinverter | EV Onboard Charger |
Use Scenario: Single-phase H6 transformerless PV inverter with 600 V DC input. IC Role / Device Role / Timing Role: Controls high-side switches in bidirectional half-bridge cells; withstands 600 V common-mode transients during grid synchronization. Use Value: Delivers stable gate drive under rapid AC line polarity reversals without desaturation or false triggering. | Use Scenario: 6.6 kW AC/DC OBC using interleaved PFC + LLC stages. IC Role / Device Role / Timing Role: Drives high-side MOSFETs in PFC boost legs; uses SD pin for immediate fault shutdown during overcurrent detection. Use Value: Achieves sub-100 ns fault response time by bypassing MCU interrupt latency through hardware shutdown path. |
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 |
|---|---|---|---|
| IR2110STRPBF | Lacks integrated bootstrap diode; requires external diode and larger bootstrap capacitor due to higher leakage. | Higher board area and BOM cost; less suitable for space-constrained microinverters. | Prefer IRS21850STRPBF where layout density and component count reduction are critical. |
| UCC27211D | Lower VBS rating (200 V); no internal level-shifter - requires external high-side driver or isolated supply. | Not usable in 400 V+ DC bus topologies without added isolation components. | Select IRS21850STRPBF for 600 V-rated half-bridge systems without external level-shift infrastructure. |
Compared with IR2110STRPBF and UCC27211D, IRS21850STRPBF uniquely integrates bootstrap diode and 600 V level-shifting in SOIC-8, enabling compact, high-reliability half-bridge gate drive with single-supply simplicity and robust CMTI.
Availability
IRS21850STRPBF is available at Aetrix Electronics and suitable for motor control inverters, industrial SMPS, solar microinverters, and EV onboard chargers requiring stable component supply across multi-year production cycles.
Supply support for IRS21850STRPBF 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 IECQ QC 080000.
The IRS21850STRPBF belongs to Infineon's high-voltage gate driver product line, engineered specifically for robust, high-density half-bridge motor and power conversion systems operating up to 600 V DC bus.
FAQ
What is the minimum bootstrap capacitor value required for reliable operation at 100 kHz?
A 0.1 μF X7R ceramic capacitor is specified for 100 kHz operation with 50% duty cycle and 15 V VDD. This value ensures VBS remains above 10.4 V UVLO threshold across worst-case gate charge (Qg = 45 nC) and leakage, verified per Infineon Application Note AN-1065.
Does IRS21850STRPBF support independent control of high-side and low-side outputs?
No - IRS21850STRPBF uses a single IN input to control both HO and LO outputs in complementary mode with fixed dead-time. Independent control requires dual-input drivers like IRS21844 or IRS2007.
Can the SD pin be used for overtemperature shutdown?
No - SD is a logic-level shutdown input only; it does not interface with internal thermal sensors. Overtemperature protection requires external circuitry monitoring die temperature via thermal pad voltage or dedicated sensor.
Is the VS pin internally clamped to prevent overvoltage during switching transitions?
Yes - VS has internal 30 V clamp diode to VDD to suppress ringing-induced overshoot during fast dV/dt events, limiting VS excursion to within safe margin of VDD + 30 V as confirmed in IRS21850STRPBF Electrical Characteristics Table.
IRS21850STRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- High-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 20V
- Logic Voltage - VIL, VIH:
- 0.8V, 2.5V
- Current - Peak Output (Source, Sink):
- 4A, 4A
- 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:
- 8-SOIC
IRS21850STRPBF FAQ
1.How can I place an order for IRS21850STRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS21850STRPBF 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 IRS21850STRPBF reliable?
The price and inventory of IRS21850STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS21850STRPBF is usually 5 days.
3.What payment methods are accepted for IRS21850STRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS21850STRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS21850STRPBF?
IRS21850STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS21850STRPBF 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 IRS21850STRPBF?
For technical support, including IRS21850STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS21850STRPBF requirements.
6.How does Aetrix verify that IRS21850STRPBF is sourced from the original manufacturer or authorized distributors?
All IRS21850STRPBF 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 IRS21850STRPBF meets industry standards.
7.What is the process for return or replacement of IRS21850STRPBF?
All IRS21850STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS21850STRPBF, 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 IRS21850STRPBF part is unused and in its original packaging.
Return procedure for IRS21850STRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IRS21850STRPBF Tags
-
ZXGD3009E6TA
Diodes Incorporated
-
1EDN7512BXTSA1
Infineon Technologies
-
UCC27517DBVR
Texas Instruments
-
MCP1416T-E/OT
Microchip Technology
-
MCP1402T-E/OT
Microchip Technology
-
MCP1415T-E/OT
Microchip Technology
-
MCP1401T-E/OT
Microchip Technology
-
IX4428NTR
Littelfuse Inc.
-
IRS2005STRPBF
Infineon Technologies
-
IRS2008STRPBF
Infineon Technologies
-
IX4310TTR
Littelfuse Inc.
-
2EDN7524RXTMA1
Infineon Technologies
Tech Hub
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.…
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…
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…
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…
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…
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…
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…
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 …
Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.
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…
