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Infineon Technologies ILD8150EXUMA1
- Part No.:
- ILD8150EXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
ILD8150EXUMA1.pdf
- Description:
- IC LED DRVR RGLTR PWM 1.5A 8DSO
- Quantity:
- Payment:
- Shipping:
Inventory:3,691
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Product details
Overview
ILD8150EXUMA1 from Infineon Technologies is a high-voltage buck LED driver IC with integrated 80 V/120 mΩ high-side MOSFET, delivering up to 1.5 A constant output current for high-power LED strings. It implements hysteretic current regulation and Infineon's proprietary hybrid dimming (0.5%–100%), enabling flicker-free operation at 3.4 kHz modulation in low-dimming range. Designed for industrial-grade electronic control gear (ECG) in general lighting systems operating from 8 V to 80 V input.
For engineers reviewing the ILD8150EXUMA1 datasheet, ILD8150EXUMA1 pinout, ILD8150EXUMA1 application, or ILD8150EXUMA1 equivalent, this page provides verified technical context on hybrid dimming behavior, cycle-by-cycle current limiting, thermal shutdown thresholds, digital soft-start timing dependency on PWM frequency, and PG-DSO-8 package terminal mapping - all critical for ECG BOM validation and thermal layout design.
Technical Context
The ILD8150EXUMA1 integrates a hysteretic buck controller with internal 80 V high-side switch and dedicated current-sense comparator circuitry. Its dual-threshold (VCSH/VCSL) hysteretic loop enables intrinsic cycle-by-cycle overcurrent protection and stable CCM operation without external compensation.
Hybrid dimming operates in two distinct modes: analog dimming (100%–12.5% ILED) via CS reference scaling, and hybrid mode (12.5%–0.5% ILED) using fixed 3.4 kHz amplitude modulation synchronized to input PWM duty cycle - independent of input PWM frequency (250 Hz–20 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | Up to 1.5 A DC - supports high-lumen LED strings without external current amplification. |
| Input voltage range | 8 V to 80 V DC - accommodates wide-range industrial bus voltages and provides SELV safety margin. |
| Dimming resolution | 0.5% minimum dim level - enables deep dimming for tunable-white and architectural lighting. |
| Integrated switch | 80 V rated, 120 mΩ RDS(on) - eliminates external MOSFET, reduces board area and conduction loss. |
| Protection features | Under-voltage lockout, thermal shutdown (>150°C), cycle-by-cycle current limit - ensures robust operation under fault conditions. |
| Soft-start behavior | Digital, PWM-frequency-dependent ramp - avoids primary-side current transients during dimming transitions. |
| Flicker performance | Flicker-free at 3.4 kHz hybrid modulation - compliant with IEEE 1789-2015 no-observable-flicker recommendation. |
Pinout & Package
ILD8150EXUMA1 is housed in PG-DSO-8 package with exposed pad (EP), where EP is internally unconnected but recommended to be soldered to PCB ground for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW | Switch node | Drives external inductor; connects to source of internal high-side MOSFET. |
| BOOT | Bootstrap supply | Bias for internal gate driver; requires external bootstrap capacitor between BOOT and SW. |
| DIM | PWM dimming input | Accepts 250 Hz–20 kHz PWM signal; internally pulled-up; controls hybrid dimming curve. |
| GND | Power and signal ground | Reference for CS, SD, VCC; must be low-impedance connection to EP and system ground. |
| CS | Current sense feedback | Monitors voltage across external RCS resistor; sets average LED current via hysteretic thresholds. |
| SD (neg.) | Shutdown enable | Active-low; requires external 3.3 V pull-down to disable IC; internally pulled-up. |
| VCC | Internal regulator output | 3.3 V regulated supply for logic; requires 1 µF ceramic bypass capacitor to GND. |
| VIN | Main power input | 8–80 V DC input; powers internal regulator and high-side switch driver. |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic current regulation | Enables stable CCM operation without compensation network; delivers ±3% output current accuracy across temperature and line. |
| Hybrid dimming architecture | Combines analog and amplitude-modulated dimming in one pin; achieves 0.5% dim level with no visible flicker at 3.4 kHz. |
| Digital soft-start | Ramps LED current based on input PWM frequency - slower ramp at low PWM frequencies prevents overshoot during startup/dimming changes. |
| Thermal protection | Turns off output stage when junction temperature exceeds 150°C; resumes operation after cooldown below hysteresis threshold (~135°C). |
| Pull-down transistor on SW | Prevents residual LED glow during shutdown by actively discharging inductor energy through internal path. |
Applications
| Street Lighting Drivers | Tunable White Architectural Fixtures |
|---|---|
|
Use Scenario: Outdoor LED luminaires powered from 48 V or 60 V DC microgrids with DALI or 0–10 V dimming interfaces. IC Role / Device Role / Timing Role: Constant-current buck controller regulating multi-string LEDs; converts PWM from DALI gateway into hybrid dimming signal. Use Value: Enables deep dimming to 0.5% while maintaining color consistency and eliminating flicker in public spaces per IEEE 1789-2015. |
Use Scenario: Multi-channel RGBW fixtures requiring precise current matching across white and colored LED strings. IC Role / Device Role / Timing Role: Independent current regulator per channel; uses identical ILD8150EXUMA1 devices to ensure <±3% inter-string current deviation. Use Value: Delivers matched lumen output across channels for smooth CCT tuning without visible banding or stepping artifacts. |
| Industrial High-Bay Lighting | UV-C Disinfection Modules |
|
Use Scenario: 100–200 W LED arrays in warehouse ceilings operating from 24–72 V DC bus with thermal derating requirements. IC Role / Device Role / Timing Role: Primary current controller with integrated thermal shutdown and cycle-by-cycle current limiting. Use Value: Sustains full output current until junction reaches 150°C, then gracefully throttles - extends lifetime in thermally constrained enclosures. |
Use Scenario: Pulsed UV-C LED drivers requiring precise current control and fast turn-off to avoid ozone generation or material degradation. IC Role / Device Role / Timing Role: High-side switch driver with active pull-down on SW pin to discharge inductor rapidly during off-state. Use Value: Eliminates post-pulse LED glow and ensures zero residual irradiance between disinfection cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX20051ATP/V+ (Maxim) | 40 V max input, 2.5 A output, external MOSFET required; no hybrid dimming - only PWM + analog dimming. | Lacks sub-1% dimming capability and flicker-free modulation; suitable for non-critical indoor lighting only. | Select when higher output current is needed and deep dimming is not required; requires additional gate driver and layout space. |
| LM3409QMYX/NOPB (TI) | 60 V max input, 1.25 A output, external MOSFET; analog dimming only; no integrated thermal shutdown. | No built-in hybrid dimming or flicker mitigation; requires external thermal sensor and protection circuitry. | Choose for cost-sensitive designs where 12.5% minimum dim level is acceptable and thermal management is handled externally. |
Compared with MAX20051ATP/V+ and LM3409QMYX/NOPB, ILD8150EXUMA1 uniquely delivers 0.5% hybrid dimming with embedded 80 V switch and thermal protection - reducing component count and enabling flicker-free operation in professional lighting without external circuitry.
Availability
ILD8150EXUMA1 is available at Aetrix Electronics and suitable for street lighting drivers, tunable white architectural fixtures, industrial high-bay lighting, and UV-C disinfection modules requiring stable component supply and long-term industrial qualification.
Supply support for ILD8150EXUMA1 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 JEDEC standards.
ILD8150EXUMA1 belongs to Infineon's ECG (Electronic Control Gear) product line, engineered specifically for high-reliability, high-efficiency LED drivers in professional lighting systems demanding deep dimming, thermal resilience, and SELV-compliant operation.
FAQ
What is the function of the exposed pad (EP) on ILD8150EXUMA1?
The exposed pad is electrically unconnected internally but serves as a thermal interface. It must be soldered to a large copper pour tied to GND to improve heat dissipation and maintain junction temperature below 150°C under full-load conditions. No electrical connection is required beyond thermal anchoring.
How does hybrid dimming differ from standard PWM dimming in ILD8150EXUMA1?
Below 12.5% target current, ILD8150EXUMA1 switches from analog dimming to hybrid mode: it holds average current at 12.5% while amplitude-modulating the output at 3.4 kHz. This avoids low-frequency PWM artifacts and satisfies IEEE 1789-2015 flicker limits - unlike standard PWM, which would cause visible flicker at ≤100 Hz.
Can ILD8150EXUMA1 operate without an external bootstrap capacitor?
No. The BOOT pin supplies gate drive voltage for the internal high-side MOSFET. An external 100 nF ceramic capacitor must be placed between BOOT and SW pins. Omitting it causes insufficient gate drive, leading to erratic switching, excessive RDS(on), and thermal shutdown.
What is the minimum recommended value for the current sense resistor (RCS)?
RCS must be selected so that VCS stays within 0.2 V to 0.8 V range under full load. For 1.5 A output, typical RCS = 0.2 Ω yields 0.3 V at nominal current. Lower values increase noise sensitivity; higher values reduce efficiency and headroom - 0.15 Ω to 0.33 Ω is the validated range per Infineon application notes.
ILD8150EXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Down (Buck)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 8V
- Voltage - Supply (Max):
- 80V
- Voltage - Output:
- -
- Current - Output / Channel:
- 1.5A
- Frequency:
- 2MHz
- Dimming:
- PWM
- Applications:
- LED Lighting
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8-27
ILD8150EXUMA1 FAQ
1.How can I place an order for ILD8150EXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ILD8150EXUMA1 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 ILD8150EXUMA1 reliable?
The price and inventory of ILD8150EXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ILD8150EXUMA1 is usually 5 days.
3.What payment methods are accepted for ILD8150EXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ILD8150EXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ILD8150EXUMA1?
ILD8150EXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ILD8150EXUMA1 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 ILD8150EXUMA1?
For technical support, including ILD8150EXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ILD8150EXUMA1 requirements.
6.How does Aetrix verify that ILD8150EXUMA1 is sourced from the original manufacturer or authorized distributors?
All ILD8150EXUMA1 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 ILD8150EXUMA1 meets industry standards.
7.What is the process for return or replacement of ILD8150EXUMA1?
All ILD8150EXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with ILD8150EXUMA1, 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 ILD8150EXUMA1 part is unused and in its original packaging.
Return procedure for ILD8150EXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ILD8150EXUMA1 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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