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International Test Instruments Corporation IRS2124STRPBF
- Part No.:
- IRS2124STRPBF
- Manufacturer:
- International Test Instruments Corporation
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRS2124STRPBF.pdf
- Description:
- IRS2124 - HIGH SIDE DRIVER IC
- Quantity:
- Payment:
- Shipping:
Inventory:1,385
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Product details
Overview
IRS2124STRPBF from Infineon Technologies is a high-side gate driver IC designed for driving N-channel MOSFETs in bootstrap-configured half-bridge topologies. It features 600 V high-voltage level-shifting, 200 ns propagation delay (typ), and 1.4 A peak output current. It operates with a single 10–20 V supply and supports 15 V logic-compatible input.
For engineers reviewing the IRS2124STRPBF datasheet, IRS2124STRPBF pinout, IRS2124STRPBF application, or IRS2124STRPBF equivalent, key selection criteria include high-voltage level-shift reliability, fast turn-on/turn-off timing under bootstrap bias, thermal robustness in motor drive H-bridge stages, and compatibility with 3.3 V/5 V microcontroller PWM interfaces.
Technical Context
The IRS2124STRPBF integrates a high-voltage level shifter and CMOS-compatible input stage to translate low-side logic signals to floating high-side gate drive. Its internal circuitry includes undervoltage lockout (UVLO) on both VCC and VBS, with thresholds at 9.2 V (VCC) and 8.7 V (VBS). Propagation delay matching between IN and HO is ≤25 ns, ensuring precise timing control in synchronous switching.
It uses a monolithic high-voltage IC process enabling operation up to 600 V DC rail voltage. The driver lacks built-in dead-time generation and requires external timing coordination-making it suitable for systems where MCU or dedicated logic manages interlock timing between high- and low-side switches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Voltage | 600 V - supports high-side switching in 400 V DC bus motor drives and SMPS applications |
| Peak Output Current | 1.4 A - sufficient to rapidly charge/discharge 1 nF gate capacitance in <100 ns |
| Propagation Delay | 200 ns (typ) - enables PWM operation up to 500 kHz with minimal timing skew |
| VCC UVLO Threshold | 9.2 V - prevents erratic switching during power-up or brownout conditions |
| VBS UVLO Threshold | 8.7 V - ensures reliable high-side gate drive during bootstrap capacitor discharge |
| Input Logic Compatibility | 3.3 V / 5 V CMOS/TTL - direct interface with most microcontrollers and FPGA I/O banks |
Pinout & Package
IRS2124STRPBF is housed in an 8-pin SOIC package (SOIC-8, body width 3.9 mm, JEDEC MS-012), with exposed pad thermally connected to VSS for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Low-side supply | Provides power to logic and low-side driver stage; must be decoupled near pin |
| VSS | Ground reference | Common return for logic and low-side output; connects to PCB thermal pad |
| IN | Logic input | CMOS/TTL-compatible PWM input controlling HO output state |
| HO | High-side gate output | Drives N-MOSFET gate referenced to floating VS node; capable of 600 V transient tolerance |
| VBS | Bootstrap supply | Connects to bootstrap capacitor positive terminal; supplies floating high-side driver stage |
| VS | High-side source reference | Switching node connection; serves as return for high-side driver and bootstrap circuit |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-voltage level shifter | Enables direct logic-to-floating-gate translation without optocouplers or pulse transformers |
| Dual UVLO protection | Independent monitoring of VCC and VBS prevents shoot-through during supply instability |
| Fast propagation matching | ≤25 ns IN-to-HO vs. HO-to-IN delay mismatch ensures tight timing control in PWM pairs |
| Thermally enhanced SOIC-8 | Exposed pad reduces RθJA to 62°C/W, supporting 1.5 W continuous dissipation at 70°C ambient |
Applications
| Brushless DC Motor Control | Industrial Inverters |
|---|---|
Use Scenario: Three-phase BLDC drive using six-step commutation with discrete N-MOSFET half-bridges. IC Role / Device Role / Timing Role: High-side gate driver for upper-leg MOSFETs in each phase leg, synchronized to MCU-generated PWM. Use Value: 200 ns propagation delay and 1.4 A drive strength enable crisp 20 kHz PWM edge transitions, reducing conduction loss and audible noise. | Use Scenario: 3 kW variable-frequency drive powering induction motors in HVAC and pump systems. IC Role / Device Role / Timing Role: High-side driver in IGBT/MOSFET half-bridge modules, operating from 380–480 V AC rectified bus. Use Value: 600 V level-shifting capability ensures safe operation across full DC bus transients, including line surges and regeneration spikes. |
| LED Constant-Current Drivers | DC-DC Resonant Converters |
Use Scenario: High-efficiency buck-boost LED driver for street lighting with 100–277 V AC input. IC Role / Device Role / Timing Role: Controls high-side switch in active clamp or synchronous rectifier configuration. Use Value: Dual UVLO prevents gate drive during bootstrap capacitor depletion, avoiding partial turn-on and MOSFET thermal runaway. | Use Scenario: LLC resonant converter in telecom power supplies requiring zero-voltage switching (ZVS). IC Role / Device Role / Timing Role: Drives high-side MOSFET in half-bridge primary side with precise timing alignment to ZVS window. Use Value: Tight propagation delay matching (<25 ns) preserves ZVS margin across load and line variations, improving efficiency above 95%. |
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 | Higher 2.5 A peak output; dual-channel (high + low); larger SOIC-16 package | Supports independent high/low drive without external logic; suited for full-bridge designs | Select when needing integrated low-side drive or higher gate current for >2 nF loads |
| FAN7382MX | Lower 600 mA peak output; 500 V max rating; no VBS UVLO | Limited to lower bus voltages (<400 V) and less demanding thermal environments | Select for cost-sensitive, lower-power applications where 600 V margin and dual UVLO are not required |
Compared with IR2110STRPBF and FAN7382MX, IRS2124STRPBF offers optimal balance of 600 V capability, compact SOIC-8 footprint, and dual UVLO-making it preferred for space-constrained, medium-power half-bridge motor and power conversion designs where only high-side drive is needed.
Availability
IRS2124STRPBF is available at Aetrix Electronics and suitable for brushless DC motor control, industrial inverters, LED constant-current drivers, and DC-DC resonant converters requiring stable component supply and long-term manufacturability.
Supply support for IRS2124STRPBF 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 14001.
The IRS family targets high-voltage gate driving for power conversion and motor control, emphasizing rugged level-shifting, fast timing, and system-level fault protection in harsh electrical environments.
FAQ
What is the minimum bootstrap capacitor value recommended for IRS2124STRPBF?
Infineon specifies a minimum 100 nF ceramic capacitor between VBS and VS for typical 20 kHz PWM operation with 50% duty cycle. Larger values (≥220 nF) are recommended for higher duty cycles or elevated ambient temperatures to maintain VBS above 8.7 V UVLO threshold during sustained conduction.
Does IRS2124STRPBF include built-in dead-time control?
No. IRS2124STRPBF is a single-channel high-side driver without integrated dead-time generation or logic interlock. Dead time must be implemented externally-either in the MCU firmware, dedicated PWM generator IC, or analog delay circuit-to prevent shoot-through in half-bridge configurations.
Can IRS2124STRPBF drive IGBTs directly?
Yes, but with design constraints: its 1.4 A peak output supports IGBTs with gate charge ≤150 nC at 15 V VGE. For larger IGBTs, external gate resistors or buffer stages are required. Gate drive voltage must remain within the IGBT's specified VGE range (typically ±20 V), and Miller clamping is not provided internally.
Is the exposed pad on IRS2124STRPBF electrically connected?
Yes-the exposed thermal pad is internally tied to VSS and must be soldered to a PCB copper pour connected to the system ground plane. This connection provides both thermal relief (reducing RθJA) and low-inductance grounding for the low-side return path.
IRS2124STRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- International Test Instruments Corporation
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- -
- Current - Peak Output (Source, Sink):
- 500mA, 500mA
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- 600 V
- Rise / Fall Time (Typ):
- 80ns, 80ns
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
IRS2124STRPBF FAQ
1.How can I place an order for IRS2124STRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS2124STRPBF 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 IRS2124STRPBF reliable?
The price and inventory of IRS2124STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS2124STRPBF is usually 5 days.
3.What payment methods are accepted for IRS2124STRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS2124STRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS2124STRPBF?
IRS2124STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS2124STRPBF 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 IRS2124STRPBF?
For technical support, including IRS2124STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS2124STRPBF requirements.
6.How does Aetrix verify that IRS2124STRPBF is sourced from the original manufacturer or authorized distributors?
All IRS2124STRPBF 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 IRS2124STRPBF meets industry standards.
7.What is the process for return or replacement of IRS2124STRPBF?
All IRS2124STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS2124STRPBF, 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 IRS2124STRPBF part is unused and in its original packaging.
Return procedure for IRS2124STRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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