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Infineon Technologies IRS2123STRPBF
- Part No.:
- IRS2123STRPBF
- Manufacturer:
- Infineon Technologies
- Category:
- Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IRS2123STRPBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
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Product details
Overview
IRS2123STRPBF 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, 100 ns propagation delay, and integrated bootstrap diode. It is used in motor control inverters and DC-DC converters requiring isolated high-side switching.
For engineers reviewing the IRS2123STRPBF datasheet, IRS2123STRPBF pinout, IRS2123STRPBF application, or IRS2123STRPBF equivalent, key selection criteria include high-voltage level-shift capability, propagation delay matching, undervoltage lockout thresholds, and bootstrap diode integration for compact layout.
Technical Context
The IRS2123STRPBF implements a floating high-side driver architecture with CMOS-compatible input logic and independent high- and low-side outputs. It uses a monolithic high-voltage process enabling 600 V withstand voltage on the HB and HS pins.
It incorporates built-in shoot-through protection via non-overlapping logic, UVLO on both high- and low-side supplies (VCC and VB), and thermal shutdown. The internal bootstrap diode eliminates external component count while supporting typical 15–20 kHz switching frequencies in BLDC motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Driver Type | High-side only gate driver with independent output for half-bridge topology |
| Max Output Voltage (HB–HS) | 600 V - supports direct connection to 400 V DC bus in motor inverters |
| Propagation Delay | 100 ns - enables precise timing control in 20 kHz PWM systems |
| UVLO Threshold (VCC) | 10.1 V (rising), 9.2 V (falling) - prevents erratic operation during power-up/down |
| UVLO Threshold (VB) | 11.5 V (rising), 10.5 V (falling) - ensures sufficient gate drive margin for high-side MOSFET |
| Output Current (Sink/Source) | 250 mA sink / 130 mA source - drives 1 nF gate capacitance with <100 ns rise/fall |
| Bootstrap Diode | Integrated - reduces BOM count and PCB area vs. discrete diode + capacitor |
Pinout & Package
Package: 8-pin SOIC (SO-8), surface-mount, RoHS-compliant, creepage ≥5.5 mm between high- and low-side sections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Low-side supply input | Provides power for logic and low-side driver stage; requires 10–20 V |
| COM | Low-side return path | Common ground reference for input logic and low-side output |
| HIN | High-side input | CMOS/TTL-compatible input controlling high-side output (HO) |
| LIN | Low-side input | CMOS/TTL-compatible input controlling low-side output (LO) |
| HO | High-side gate output | Drives gate of high-side N-MOSFET referenced to floating HS node |
| LO | Low-side gate output | Drives gate of low-side N-MOSFET referenced to COM |
| VS | Floating source reference | Connects to source of high-side MOSFET; defines return for HO output |
| VB | High-side floating supply | Bootstrap-supplied voltage (typically VCC + VBUS) powering high-side driver stage |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bootstrap diode | Reduces external component count by one diode and simplifies layout in half-bridge designs |
| Matched propagation delays | Ensures <50 ns skew between HIN→HO and LIN→LO paths, minimizing shoot-through risk |
| Dual UVLO protection | Independent monitoring of VCC and VB prevents false triggering when either supply dips below safe threshold |
| CMOS/TTL input compatibility | Accepts 3.3 V or 5 V logic without level-shifting circuitry, easing MCU interface |
| Thermal shutdown | Disables outputs if junction temperature exceeds 150 °C, protecting driver and MOSFETs |
Applications
| Brushless DC Motor Control | Industrial Inverters |
|---|---|
Use Scenario: 3-phase BLDC drive in HVAC blowers and power tools using 24–48 V DC bus. IC Role / Device Role / Timing Role: High-side gate driver providing isolated gate drive to upper-leg MOSFETs synchronized with low-side switching. Use Value: Integrated bootstrap diode and matched delays reduce gate drive loop inductance and improve commutation reliability at 15–20 kHz. | Use Scenario: 400 V DC-fed 3 kW industrial inverter for pump and fan control. IC Role / Device Role / Timing Role: Floating high-side driver enabling compact half-bridge stage with 600 V blocking capability. Use Value: Dual UVLO ensures robust startup and fault recovery under varying DC link conditions. |
| Solar Microinverters | DC-DC Resonant Converters |
Use Scenario: Single-phase microinverter interfacing PV panel to grid with transformerless topology. IC Role / Device Role / Timing Role: High-side driver for active clamp or half-bridge switch operating at 50–100 kHz. Use Value: 100 ns propagation delay supports tight dead-time control needed for ZVS operation. | Use Scenario: LLC resonant DC-DC converter in telecom power supplies (48 V input, 12 V output). IC Role / Device Role / Timing Role: High-side driver for primary-side synchronous rectification or half-bridge switching. Use Value: Thermal shutdown and 600 V rating enable reliable operation under transient overvoltage 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 |
|---|---|---|---|
| IR2110STRPBF | Higher 10 A peak output current; no integrated bootstrap diode; requires external diode and larger bootstrap capacitor | Better suited for higher-power (>5 kW) inverters needing stronger gate drive | Select IR2110STRPBF when gate charge >30 nC or switching frequency <10 kHz demands higher peak current |
| FAN7382MX | Lower 500 V max voltage rating; 150 ns propagation delay; no thermal shutdown | Targeted at cost-sensitive 24–100 V applications like small appliances | Choose FAN7382MX only for sub-300 V DC bus systems where thermal margin is managed externally |
Compared with IR2110STRPBF and FAN7382MX, the IRS2123STRPBF offers optimal balance of integrated bootstrap diode, 600 V rating, and thermal protection for mid-power (0.5–5 kW) half-bridge motor drives and inverters where layout simplicity and reliability are prioritized.
Availability
IRS2123STRPBF is available at Aetrix Electronics and suitable for brushless DC motor control, industrial inverters, solar microinverters, and resonant DC-DC converters requiring stable component supply across production lifecycles.
Supply support for IRS2123STRPBF 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.
The IRS21xx family was developed specifically for high-reliability half-bridge gate driving in motor control and power conversion, emphasizing integration, voltage robustness, and thermal safety.
FAQ
What is the maximum recommended switching frequency for IRS2123STRPBF?
The IRS2123STRPBF is characterized for reliable operation up to 200 kHz, but its typical use case targets 15–100 kHz due to propagation delay (100 ns) and bootstrap recharge time constraints. At 100 kHz, minimum duty cycle must exceed 10% to ensure sufficient VB recharge; for continuous 50% duty, ≤50 kHz is recommended to maintain stable high-side drive.
Can IRS2123STRPBF drive IGBTs directly?
No - IRS2123STRPBF is optimized for N-channel MOSFET gate drive with 130 mA source / 250 mA sink capability and fast 100 ns propagation. IGBTs typically require higher gate charge (≥100 nC) and slower turn-off to avoid voltage overshoot; dedicated IGBT drivers like IRS21844 or 2EDN7524R are recommended instead.
Is an external bootstrap diode required with IRS2123STRPBF?
No - IRS2123STRPBF integrates a 1 A, 600 V rated bootstrap diode between VCC and VB pins. This eliminates the need for an external diode in standard half-bridge layouts. However, the bootstrap capacitor (typically 0.1–1 µF ceramic) must still be placed close to VB and VS pins per layout guidelines.
Does IRS2123STRPBF support 3.3 V logic inputs?
Yes - IRS2123STRPBF has CMOS/TTL-compatible inputs with VIH = 2.5 V (min) and VIL = 0.8 V (max), fully supporting 3.3 V microcontrollers without level shifters. Input hysteresis of 0.3 V ensures noise immunity in electrically noisy motor drive environments.
IRS2123STRPBF 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:
- -
- Current - Peak Output (Source, Sink):
- 500mA, 500mA
- Input Type:
- Non-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
IRS2123STRPBF FAQ
1.How can I place an order for IRS2123STRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS2123STRPBF 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 IRS2123STRPBF reliable?
The price and inventory of IRS2123STRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS2123STRPBF is usually 5 days.
3.What payment methods are accepted for IRS2123STRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS2123STRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS2123STRPBF?
IRS2123STRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS2123STRPBF 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 IRS2123STRPBF?
For technical support, including IRS2123STRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS2123STRPBF requirements.
6.How does Aetrix verify that IRS2123STRPBF is sourced from the original manufacturer or authorized distributors?
All IRS2123STRPBF 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 IRS2123STRPBF meets industry standards.
7.What is the process for return or replacement of IRS2123STRPBF?
All IRS2123STRPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRS2123STRPBF, 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 IRS2123STRPBF part is unused and in its original packaging.
Return procedure for IRS2123STRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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