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Infineon Technologies ILD2035E6327HTSA1
- Part No.:
- ILD2035E6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- SC-74, SOT-457
- Datasheet:
-
ILD2035E6327HTSA1.pdf
- Description:
- IC LED DRVR RGLTR 350MA SC74-3D
- Quantity:
- Payment:
- Shipping:
Inventory:2,742
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Product details
Overview
ILD2035E6327HTSA1 from Infineon Technologies is a step-down LED driver IC with integrated 400 mA MOSFET switch, designed for constant-current driving of high-power LEDs in off-line AC/DC lighting systems. It operates from 8 V to 22 V input, delivers 350 mA average LED current with ±3% accuracy, and includes overcurrent, thermal, and open-circuit LED protection - used in MR16 halogen-replacement lamps and architectural downlights.
For engineers reviewing the ILD2035E6327HTSA1 datasheet, ILD2035E6327HTSA1 pinout, ILD2035E6327HTSA1 application, or ILD2035E6327HTSA1 equivalent, key selection criteria include input voltage range (8–22 V), internal switch rating (400 mA), efficiency (up to 92%), soft-start behavior, and SC74-6-4 package thermal performance in compact LED retrofit modules.
Technical Context
The ILD2035 implements a fixed-frequency (≈1 MHz) current-mode buck controller with an integrated N-channel power MOSFET and precision current-sense amplifier. Its feedback loop regulates LED current via external Rsense at the Vsense pin, while EN enables/disables operation with logic-level control and built-in hysteresis.
Thermal protection activates when junction temperature exceeds 150 °C, forcing shutdown until cooldown; open-circuit detection disables switching if no LED load is present, preventing uncontrolled Vswitch rise. The device requires only five external components: input capacitor, output capacitor, inductor, sense resistor, and optional EN pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 8 V to 22 V - supports wide-range DC input derived from rectified AC or industrial DC rails without pre-regulation. |
| LED Output Current | 350 mA typical, ±3% accuracy - enables precise luminous flux control in regulated LED strings. |
| Internal Switch Rating | 400 mA continuous average - allows margin for transient peaks and thermal derating in enclosed fixtures. |
| Efficiency | Up to 92 % at nominal load - reduces thermal load and enables smaller heatsinks in space-constrained MR16 modules. |
| Switching Frequency | ≈1 MHz - permits use of small, low-profile shielded inductors and minimizes audible noise. |
| Shutdown Current | ≤1 µA - preserves battery or standby power in smart lighting systems with motion-triggered enable. |
| Thermal Shutdown Threshold | 150 °C junction - protects against sustained overtemperature in thermally isolated LED housings. |
Pinout & Package
ILD2035E6327HTSA1 is housed in the SC74-6-4 surface-mount package (3.0 mm × 1.7 mm × 0.9 mm), featuring exposed thermal pad for enhanced PCB heat dissipation and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VS) | Power Input Supply | Primary DC input connection; decoupled externally to suppress switching noise and sustain peak current. |
| 2 (GND) | Ground Reference | Analog and power ground return; must be low-impedance and tied directly to thermal pad for stability. |
| 3 (EN) | Enable Control Input | Logic-compatible digital input (0.4 V / 2.0 V thresholds); enables soft-start on rising edge and forces shutdown on low. |
| 4 (VSWITCH) | Switch Node | Drain of internal MOSFET; connects to inductor and freewheeling diode/capacitor - critical for EMI layout. |
| 5 (GND) | Second Ground Terminal | Dedicated low-noise ground path for current-sense amplifier; routed separately from power GND to minimize offset error. |
| 6 (VSENSE) | Current Sense Input | High-precision analog input referenced to GND5; measures voltage across external Rsense to regulate LED current. |
Key Features
| Feature | Design Value |
|---|---|
| Inherent Open-Circuit LED Protection | Disables switching automatically if Vsense voltage exceeds threshold - prevents destructive VSWITCH overshoot during LED string failure. |
| Integrated 400 mA Power MOSFET | Eliminates need for external high-side switch and gate driver - reduces BOM count and layout complexity in compact drivers. |
| Soft-Start Function | Gradually ramps LED current over ~1 ms at power-on - avoids inrush stress on LEDs and input capacitors. |
| Temperature Protection Mechanism | Hysteretic thermal shutdown with 150 °C trip and ~15 °C hysteresis - ensures safe restart after cooling without external thermal sensor. |
| Low Shutdown Current (≤1 µA) | Enables energy-efficient dimming and occupancy-based control in battery-backed or ultra-low-power lighting nodes. |
Applications
| MR16 Halogen Replacement | Architectural Downlights |
|---|---|
|
Use Scenario: Retrofitting 12 V AC halogen MR16 lamps with LED equivalents in residential and commercial track lighting. IC Role / Device Role: Constant-current buck regulator with integrated switch, replacing transformer + rectifier + linear regulator topology. Use Value: Enables direct 12 V AC-to-LED conversion with >90 % efficiency and inherent short/open-LED safety - eliminating bulb overheating and premature failure. |
Use Scenario: Driving multi-LED arrays in recessed ceiling downlights requiring stable lumen output and thermal resilience. IC Role / Device Role: Primary LED current controller with thermal foldback, interfaced to external PWM dimming via EN pin. Use Value: Maintains ±3 % current accuracy across ambient temperatures up to 85 °C, ensuring consistent color rendering and lifetime in enclosed fixtures. |
| Commercial Track Lighting | Emergency Exit Sign Modules |
|
Use Scenario: Powering directional LED spotlights on modular track systems with centralized 24 V DC supply. IC Role / Device Role: Isolated current source per lamp head, rejecting input ripple and enabling independent dimming control. Use Value: Delivers stable 350 mA despite ±10 % input variation, supporting uniform brightness across multiple heads on shared bus. |
Use Scenario: Driving red/green LED arrays in self-contained exit signs with battery backup and long-life requirements. IC Role / Device Role: Low-quiescent-current LED driver activated during mains failure, controlled by microcontroller via EN pin. Use Value: ≤1 µA shutdown current extends battery runtime; thermal protection prevents LED degradation during extended emergency operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL8862SP-13 | Higher input range (4.5–40 V), external MOSFET, 1.3 MHz switching - requires more external components and layout effort. | Preferred for wider input flexibility and higher power (≥1 W per channel); lacks integrated thermal shutdown hysteresis. | Select when input voltage exceeds 22 V or when discrete FET optimization is required for thermal management. |
| LM3409MYX/NOPB | Adjustable frequency (200 kHz–2 MHz), external MOSFET, ±5 % current accuracy - lower accuracy and no built-in open-circuit protection. | Suitable for high-efficiency, high-power (>5 W) designs where board space allows larger inductors and discrete layout. | Choose for programmable frequency tuning and higher peak current capability, accepting added component count and protection circuitry. |
Compared with AL8862SP-13 and LM3409MYX/NOPB, ILD2035E6327HTSA1 offers tighter current accuracy (±3 %), integrated protection features, and minimal external parts - making it optimal for cost-sensitive, space-constrained LED retrofit modules below 2 W.
Availability
ILD2035E6327HTSA1 is available at Aetrix Electronics and suitable for MR16 halogen replacement lamps, architectural downlights, and commercial track lighting requiring stable component supply, long-lifecycle support, and qualified automotive-grade reliability screening.
Supply support for ILD2035E6327HTSA1 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 AG 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.
ILD2035 belongs to Infineon's LED Driver product line, engineered specifically for energy-efficient, compact, and safety-certifiable solid-state lighting replacements in consumer and commercial AC/DC applications.
FAQ
What is the maximum allowable input voltage for continuous operation?
The ILD2035E6327HTSA1 supports continuous operation up to 22 V DC input. Exceeding this voltage risks permanent damage to the internal MOSFET and control circuitry. Transient spikes above 22 V must be clamped externally using TVS diodes rated for ≤24 V standoff voltage and appropriate peak pulse power handling.
How is LED current accuracy affected by temperature and supply variation?
LED current accuracy remains within ±3 % over ambient temperatures from –40 °C to +85 °C and input voltages from 8 V to 22 V, as verified in the datasheet's DC characteristics table. This stability is achieved through trimmed internal reference and matched current-sense amplifier design - no external calibration is required.
Can the ILD2035E6327HTSA1 drive multiple parallel LED strings?
No - the ILD2035E6327HTSA1 is designed for single-string constant-current operation. Driving parallel strings would cause current imbalance due to forward voltage mismatches, risking thermal runaway. For multi-string applications, separate ILD2035 channels or a matrix driver IC is required.
Is the SC74-6-4 package compatible with standard reflow soldering profiles?
Yes - the SC74-6-4 package is qualified for lead-free reflow per JEDEC J-STD-020 Rev. E. Peak temperature must not exceed 260 °C for ≤10 seconds, with ramp rates limited to ≤3 °C/s. Figure 7 in the datasheet provides the recommended PCB footprint and stencil design for reliable solder joint formation.
ILD2035E6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 8V
- Voltage - Supply (Max):
- 22V
- Voltage - Output:
- -
- Current - Output / Channel:
- 350mA
- Frequency:
- 120kHz
- Dimming:
- -
- Applications:
- Lighting
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74-3D
ILD2035E6327HTSA1 FAQ
1.How can I place an order for ILD2035E6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ILD2035E6327HTSA1 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 ILD2035E6327HTSA1 reliable?
The price and inventory of ILD2035E6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ILD2035E6327HTSA1 is usually 5 days.
3.What payment methods are accepted for ILD2035E6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ILD2035E6327HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ILD2035E6327HTSA1?
ILD2035E6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ILD2035E6327HTSA1 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 ILD2035E6327HTSA1?
For technical support, including ILD2035E6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ILD2035E6327HTSA1 requirements.
6.How does Aetrix verify that ILD2035E6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All ILD2035E6327HTSA1 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 ILD2035E6327HTSA1 meets industry standards.
7.What is the process for return or replacement of ILD2035E6327HTSA1?
All ILD2035E6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ILD2035E6327HTSA1, 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 ILD2035E6327HTSA1 part is unused and in its original packaging.
Return procedure for ILD2035E6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ILD2035E6327HTSA1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
-
BCR430UXTSA2
Infineon Technologies
-
BCR420UE6433HTMA1
Infineon Technologies
-
BCR420UE6327HTSA1
Infineon Technologies
-
BCR421UE6327HTSA1
Infineon Technologies
-
LYT1604D-TL
Power Integrations
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HV9910CLG-G
Microchip Technology
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CL2N8-G
Microchip Technology
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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