My Inquiry
My Account
Infineon Technologies IRS2541C
- Part No.:
- IRS2541C
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- -
- Datasheet:
-
IRS2541C.pdf
- Description:
- IC REG LED BUCK 600V DIE
- Quantity:
- Payment:
- Shipping:
Inventory:2,243
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
IRS2541C from Infineon Technologies is a 600V high-side buck LED driver IC with integrated high-voltage level-shift circuitry, designed for single-stage AC/DC offline LED lighting. It delivers constant-current regulation up to 1.2A, supports 8–25V VCC operation, and features built-in overcurrent and thermal shutdown protection. Used in non-isolated LED streetlight and industrial lamp drivers.
For engineers reviewing the IRS2541C datasheet, IRS2541C pinout, IRS2541C application, or IRS2541C equivalent, key selection criteria include its 600V high-side switch rating, internal bootstrap diode, adjustable current sense threshold (0.25V), and compatibility with dimmable offline topologies requiring minimal external components.
Technical Context
The IRS2541C integrates a 600V high-side N-channel MOSFET driver with adaptive dead-time control and a precision current-sense amplifier. Its level-shift architecture enables direct gate drive of high-side buck switches without external floating supplies.
It operates in continuous conduction mode (CCM) with fixed-frequency PWM control (up to 1 MHz), and includes a dedicated DIM input for analog/digital dimming. The IC requires no external bootstrap capacitor due to its integrated charge pump and diode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Input Voltage | 600V - Enables direct connection to rectified universal AC mains (85–265VAC) without pre-regulation. |
| Output Current Accuracy | ±5% - Tight regulation ensures consistent LED brightness across line/load variations. |
| VCC Operating Range | 8–25V - Supports wide auxiliary supply range for flexible biasing in multi-output designs. |
| Current Sense Threshold | 0.25V - Low threshold reduces power loss in sense resistor and improves efficiency. |
| Switching Frequency | Up to 1 MHz - Allows compact magnetics and reduced EMI filter size in space-constrained fixtures. |
| Thermal Shutdown | 150°C - Protects die during overload or poor heatsinking without external thermal sensors. |
Pinout & Package
IRS2541C is offered in a thermally enhanced 8-pin SOIC package (SOIC-8, exposed pad). Pin functions are validated per Infineon's official datasheet Rev. 2.0 (2021).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Supply input | Bias voltage source for internal logic and gate driver; must be decoupled near pin. |
| COM | Power ground reference | Return path for high-side driver and current sense; connects to source of external MOSFET. |
| CS | Current sense input | Monitors voltage drop across external sense resistor to regulate LED current. |
| HO | High-side gate driver output | Drives gate of external N-channel MOSFET; capable of 600V common-mode swing. |
| LO | Low-side gate driver output | Unused in buck configuration; must be tied to COM or left open per design guidelines. |
| DIM | Dimming control input | Accepts 0–2.5V analog or PWM signal to linearly scale output current. |
| VBS | Bootstrap supply | Internal charge pump eliminates need for external bootstrap capacitor and diode. |
| NC | No connect | Pin 1 is internally unused; must remain unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-voltage level shifter | Enables direct 600V high-side gate drive without external level-shift IC or isolated supply. |
| Internal bootstrap diode and charge pump | Removes requirement for external bootstrap capacitor and diode, reducing BOM count and layout area. |
| Adjustable current regulation via CS pin | 0.25V threshold allows precise, low-loss current setting with standard 1% resistors. |
| Thermal and overcurrent protection | Auto-restart after fault clearance ensures robust operation in outdoor or enclosed luminaires. |
Applications
| Street Lighting Driver | Industrial High-Bay Lamp |
|---|---|
Use Scenario: Outdoor 100–200W LED streetlight operating directly from 230VAC mains with IP67 enclosure. IC Role / Device Role / Timing Role: High-side buck controller regulating constant current to series-connected LED strings. Use Value: Eliminates transformer and secondary-side feedback, reducing system cost and improving reliability in harsh environments. | Use Scenario: 150W warehouse high-bay fixture with 0–10V dimming interface and thermal derating. IC Role / Device Role / Timing Role: Primary LED current regulator with analog dimming input and thermal foldback. Use Value: Maintains ±5% current accuracy across 40–85°C ambient, ensuring uniform lumen output over lifetime. |
| Commercial Downlight Module | UV-C Disinfection Lamp Driver |
Use Scenario: Slim-profile recessed downlight with integrated driver and EMC-compliant layout. IC Role / Device Role / Timing Role: Fixed-frequency CCM buck controller enabling small inductor and low EMI. Use Value: 1 MHz switching allows <1.5 mm height inductors, meeting tight mechanical constraints. | Use Scenario: Pulsed UV-C LED array (275nm) requiring precise current pulses for germicidal efficacy. IC Role / Device Role / Timing Role: Fast-response current regulator supporting PWM dimming at 1–10 kHz. Use Value: Sub-100 ns propagation delay ensures accurate pulse width control for dose-critical applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side buck LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NCL30001 | Requires external bootstrap diode and capacitor; 500V max VDS. | Limited to lower-line applications (≤230VAC); less suitable for 277VAC streetlights. | Prefer when cost sensitivity outweighs board space and 600V margin requirements. |
| Diodes Incorporated AL1676 | Integrated 600V MOSFET; no external switch needed but fixed 350mA max output. | Not scalable beyond 35W; lacks DIM pin flexibility for analog dimming. | Select only for low-power, fixed-output designs where integration trumps adjustability. |
Compared with NCL30001 and AL1676, the IRS2541C uniquely combines 600V capability, external MOSFET flexibility, and analog dimming support-enabling scalable, high-reliability LED drivers for 50–200W applications with variable line and thermal conditions.
Availability
IRS2541C is available at Aetrix Electronics and suitable for street lighting, industrial high-bay lamps, and commercial downlight modules requiring stable component supply and long-term production continuity.
Supply support for IRS2541C 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, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and IECQ QC 080000.
The IRS2541C belongs to Infineon's LED Driver IC product line, engineered specifically for high-efficiency, high-voltage, non-isolated LED lighting systems demanding reliability under extended thermal stress and line transients.
FAQ
What is the maximum recommended LED string voltage for IRS2541C-based designs?
The IRS2541C does not regulate output voltage directly-it controls current through a buck topology. Maximum LED string voltage is limited by the external MOSFET's VDS rating and input rail. With a 600V MOSFET and 265VAC input (375VDC peak), typical max string voltage is 300–340V to maintain safe margin under surge and ripple conditions.
Does IRS2541C require an external bootstrap capacitor?
No. The IRS2541C integrates a charge pump and bootstrap diode, eliminating the need for an external bootstrap capacitor and diode. This simplifies layout, reduces component count, and improves reliability in high-vibration or thermally cycling environments.
Can IRS2541C operate in discontinuous conduction mode (DCM)?
No. The IRS2541C is designed for continuous conduction mode (CCM) operation only. Its internal oscillator, current sensing, and gate drive timing are optimized for CCM. Attempting DCM operation may cause instability, inaccurate current regulation, or premature shutdown.
Is there a recommended minimum VCC startup voltage for reliable operation?
Yes. IRS2541C requires ≥8V on VCC to initiate operation. Startup is guaranteed at 8.5V, and the IC remains functional down to 7.5V before undervoltage lockout activates. A 10V nominal VCC supply with ≥22µF local capacitance is recommended for stable startup under load transients.
IRS2541C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- -
- Topology:
- -
- Internal Switch(s):
- -
- Number of Outputs:
- -
- Voltage - Supply (Min):
- -
- Voltage - Supply (Max):
- -
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
IRS2541C FAQ
1.How can I place an order for IRS2541C through Aetrix?
Please submit a Request for Quotation (RFQ) for IRS2541C 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 IRS2541C reliable?
The price and inventory of IRS2541C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRS2541C is usually 5 days.
3.What payment methods are accepted for IRS2541C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRS2541C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRS2541C?
IRS2541C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRS2541C 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 IRS2541C?
For technical support, including IRS2541C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRS2541C requirements.
6.How does Aetrix verify that IRS2541C is sourced from the original manufacturer or authorized distributors?
All IRS2541C 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 IRS2541C meets industry standards.
7.What is the process for return or replacement of IRS2541C?
All IRS2541C units undergo pre-shipment inspection (PSI). If there is an issue with IRS2541C, 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 IRS2541C part is unused and in its original packaging.
Return procedure for IRS2541C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
IRS2541C Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
-
HV9910CLG-G
Microchip Technology
-
CL2N8-G
Microchip Technology
-
BCR420UW6-7
Diodes Incorporated
-
BCR421UW6-7
Diodes Incorporated
-
BCR420UFD-7
Diodes Incorporated
-
BCR421UFD-7
Diodes Incorporated
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
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…
