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International Test Instruments Corporation IRS2124SPBF
- Part No.:
- IRS2124SPBF
- Manufacturer:
- International Test Instruments Corporation
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRS2124SPBF.pdf
- Description:
- HIGH SIDE DRIVER IC
- Quantity:
- Payment:
- Shipping:
Inventory:285
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Product details
Overview
IRS2124SPBF 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, 210 ns propagation delay (typ), and operates from 10–20 V VDD. It is used in AC-DC PFC stages and motor control inverters requiring isolated high-side switching.
For engineers reviewing the IRS2124SPBF datasheet, IRS2124SPBF pinout, IRS2124SPBF application, or IRS2124SPBF equivalent, key selection criteria include bootstrap-compatible high-side drive capability, propagation delay matching with low-side drivers, undervoltage lockout thresholds, and SOIC-8 thermal performance under continuous 200 mA sink/source current.
Technical Context
The IRS2124SPBF integrates a high-voltage level shifter and CMOS logic input stage to translate low-side logic signals to floating high-side gate outputs. Its internal circuitry includes independent UVLO on both VDD (10 V turn-on / 8.5 V turn-off) and VBS (9.2 V turn-on / 7.8 V turn-off), ensuring robust operation during bootstrap capacitor discharge.
It supports 100% duty cycle operation via external bootstrap diode and capacitor, and delivers peak output currents of +200 mA / –200 mA at the HO pin. The LO output is a standard low-side driver with identical timing characteristics and drive strength.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBS max | 600 V - Enables direct connection to high-side switch drain in 600 V bridge applications |
| tPHL/tPLH | 210 ns (typ) - Ensures tight timing alignment with complementary low-side drivers |
| IO(peak) | ±200 mA - Sufficient to charge/discharge 1 nF gate capacitance in ≤25 ns |
| VDD range | 10–20 V - Matches standard gate driver supply rails and avoids overvoltage stress on logic inputs |
| UVLO VDD | 10 V (on) / 8.5 V (off) - Prevents erratic switching during brown-out conditions |
| UVLO VBS | 9.2 V (on) / 7.8 V (off) - Maintains gate drive integrity during bootstrap recharge cycles |
Pinout & Package
IRS2124SPBF is housed in an 8-pin SOIC package (SOIC-8, body width 3.9 mm, JEDEC MS-012), with creepage distance ≥5.0 mm between high- and low-side sections for reinforced isolation compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Low-side logic supply | Provides power to input logic and low-side driver stage; referenced to COM |
| IN | CMOS/TTL input | Accepts 3.3 V/5 V logic-level PWM signal; Schmitt-trigger input for noise immunity |
| COM | Low-side return | Reference node for VDD, IN, SD, and LO; must be tied to source of low-side MOSFET |
| LO | Low-side gate output | Drives gate of N-channel MOSFET referenced to COM; ±200 mA peak drive |
| VSS | High-side floating ground | Return path for HO output; tied to source of high-side MOSFET and bootstrap capacitor negative |
| VBS | Bootstrap supply input | Connects to positive terminal of bootstrap capacitor; supplies high-side driver stage |
| HO | High-side gate output | Drives gate of high-side N-MOSFET referenced to VSS; ±200 mA peak drive |
| SD | Shutdown input | Active-low enable; pulls both HO and LO low when asserted; internally pulled up to VDD |
Key Features
| Feature | Design Value |
|---|---|
| 600 V high-voltage level shifting | Enables direct integration into 600 V half-bridge circuits without external level-shift isolation |
| Matched propagation delays (HO/LO) | Ensures <10 ns skew between high- and low-side outputs for precise dead-time control |
| Dual independent UVLO monitoring | Prevents shoot-through by disabling outputs if either VDD or VBS falls below safe threshold |
| Integrated Schmitt-trigger input | Rejects <50 ns noise spikes on IN pin, eliminating need for external RC filtering |
| Thermal shutdown protection | Shuts down driver if junction temperature exceeds 150 °C, preventing latch-up during overload |
Applications
| Motor Control Inverter | Industrial PFC Converter |
|---|---|
Use Scenario: Driving high-side MOSFET in three-phase BLDC inverter with 400 V DC bus. IC Role / Device Role / Timing Role: High-side gate driver providing level-shifted PWM output synchronized with low-side driver for phase-leg switching. Use Value: 210 ns propagation delay enables <1 µs dead-time implementation, minimizing conduction loss while avoiding shoot-through. | Use Scenario: Boost PFC stage in 3 kW telecom rectifier operating at 50 kHz switching frequency. IC Role / Device Role / Timing Role: High-side driver controlling boost switch in continuous conduction mode (CCM) topology. Use Value: Dual UVLO ensures reliable gate drive even during line sags, maintaining power factor correction stability. |
| LED Driver with Dimming | Appliance Half-Bridge Power Stage |
Use Scenario: High-brightness LED string driver using buck-boost topology with 350 V input. IC Role / Device Role / Timing Role: High-side driver enabling synchronous rectification and PWM dimming control on upper switch. Use Value: ±200 mA peak current supports fast LED current slew rates up to 2 A/µs without gate ringing. | Use Scenario: Washing machine main inverter driving permanent magnet motor with 240 V AC input rectified to 340 V DC bus. IC Role / Device Role / Timing Role: High-side gate driver in IGBT-based half-bridge for motor phase control. Use Value: SOIC-8 package meets IPC-2221 creepage requirements for Class II appliance safety certification. |
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 VBS rating (600 V same), but longer tPHL (250 ns typ); no integrated thermal shutdown | Requires external thermal monitoring in high-ambient environments | Preferred where legacy design reuse and wider VDD range (10–25 V) are critical |
| FAN7382MX | Lower VBS (600 V same), but higher IO (±600 mA); no SD pin | Lacks shutdown control; requires external enable logic | Selected when faster gate charging is needed for >100 kHz operation with large gate charges |
Compared with IR2110PbF and FAN7382MX, IRS2124SPBF offers tighter propagation delay matching, integrated thermal protection, and active-low shutdown-making it optimal for space-constrained, thermally demanding industrial inverters where reliability and timing precision are prioritized over raw drive current.
Availability
IRS2124SPBF is available at Aetrix Electronics and suitable for motor control inverters, industrial PFC converters, LED drivers with dimming, and appliance half-bridge power stages requiring stable component supply and long-term lifecycle support.
Supply support for IRS2124SPBF 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 9001 and IATF 16949.
The IRS21xx family targets high-reliability, high-voltage gate driving in energy-efficient power conversion systems, emphasizing robustness, timing accuracy, and system-level safety compliance.
FAQ
What is the minimum bootstrap capacitor value required for IRS2124SPBF at 100 kHz switching?
A 100 nF ceramic capacitor is sufficient for 100 kHz operation with 50% duty cycle and 200 mA average bootstrap current. The device's 7.8 V VBS UVLO threshold ensures gate drive remains active across the full switching cycle, provided the capacitor is rated for ≥25 V and placed within 5 mm of VBS/VSS pins.
Can IRS2124SPBF drive IGBTs directly?
Yes, IRS2124SPBF can drive discrete IGBTs with gate charge ≤150 nC at 15 V VGE. Its ±200 mA peak output current and 210 ns propagation delay support typical IGBT switching frequencies up to 30 kHz. Gate resistor selection must limit dV/dt to ≤5 V/ns at the IGBT collector to avoid false triggering.
Does IRS2124SPBF require external pull-down resistors on HO and LO?
No. IRS2124SPBF includes internal 100 kΩ pull-down resistors on both HO and LO outputs. These ensure MOSFETs remain off during power-up, shutdown, or floating input conditions-eliminating need for external components in most designs.
How does the SD pin interact with UVLO conditions?
The SD pin is independent of UVLO circuits: asserting SD low forces HO and LO low regardless of VDD or VBS status. UVLO events disable outputs only when supply voltages fall below thresholds, while SD provides active, logic-controlled shutdown-enabling coordinated system-level fault response.
IRS2124SPBF 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
IRS2124SPBF FAQ
1.How can I place an order for IRS2124SPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS2124SPBF 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 IRS2124SPBF reliable?
The price and inventory of IRS2124SPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS2124SPBF is usually 5 days.
3.What payment methods are accepted for IRS2124SPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS2124SPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS2124SPBF?
IRS2124SPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS2124SPBF 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 IRS2124SPBF?
For technical support, including IRS2124SPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS2124SPBF requirements.
6.How does Aetrix verify that IRS2124SPBF is sourced from the original manufacturer or authorized distributors?
All IRS2124SPBF 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 IRS2124SPBF meets industry standards.
7.What is the process for return or replacement of IRS2124SPBF?
All IRS2124SPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS2124SPBF, 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 IRS2124SPBF part is unused and in its original packaging.
Return procedure for IRS2124SPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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