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Infineon Technologies TLD1120ELXUMA1
- Part No.:
- TLD1120ELXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLD1120ELXUMA1.pdf
- Description:
- IC LED DRVR LINEAR 360MA 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,482
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Product details
Overview
TLD1120ELXUMA1 from Infineon Technologies is a single-channel high-side LED current source IC designed for automotive exterior and interior lighting. It delivers up to 360 mA output current with ±7% accuracy at RSET = 12 kΩ, operates from 5.5 V to 40 V supply, features thermal and reverse-polarity protection, and supports PWM dimming via EN and VS pins - used in tail/brake light modules requiring stable current regulation under battery voltage fluctuation.
For engineers reviewing the TLD1120ELXUMA1 datasheet, TLD1120ELXUMA1 pinout, TLD1120ELXUMA1 application, or TLD1120ELXUMA1 equivalent, key selection criteria include its 360 mA max output current, PG-SSOP-14 exposed-pad thermal package, sleep-mode current of 0.1 µA, undervoltage lockout at 5 V, and integrated overload/overtemperature protection for automotive-grade reliability.
Technical Context
The TLD1120ELXUMA1 implements a high-side current-regulated output stage with internal power MOSFET and precision current-sense feedback loop. Its output current is set by an external resistor on IN_SET and remains stable across supply (5.5–40 V) and load voltage variations, enabling consistent LED brightness in automotive battery environments.
It integrates dual-function EN pin for enable/sleep control and power-on reset with 5 V threshold, plus thermal shutdown triggered at Tj ≥ 150°C. Protection includes reverse polarity, overcurrent, ESD (±2 kV HBM), and undervoltage lockout - all implemented as hardware-level safety mechanisms without software dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current range | 180 mA nominal (8–18 V), up to 360 mA max with adequate PCB thermal design |
| Supply voltage range | 5.5 V to 40 V - covers full automotive battery range including load dump |
| Current accuracy | ±7% at RSET = 12 kΩ - enables predictable LED brightness without calibration |
| Sleep current | 0.1 µA - minimizes parasitic drain in parked vehicle state |
| Junction temperature limit | -40°C to +150°C - supports under-hood placement with thermal derating |
| Thermal resistance (J–C) | 8–10 K/W - enables direct heatsink coupling via exposed pad |
| EN pin threshold | VEN(on) = 5 V typical - compatible with standard 5 V logic or microcontroller GPIO |
Pinout & Package
Package: PG-SSOP-14 with exposed thermal pad (EP), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 VS | Power input | Battery supply rail; requires local 100 nF–1 µF decoupling to GND |
| 3 EN | Digital control input | Enable/sleep control; 5 V threshold, also carries device current during operation |
| 5 GNDS | Analog ground reference | Signal ground for current sense; must be tied to main GND plane |
| 6 IN_SET | Current programming input | Connects external resistor to set output current; supports PTC for overtemp LED protection |
| 9 GND | Power ground | Main return path; connects to GNDS and exposed pad for low-impedance thermal path |
| 12 OUT | High-side output | Drives LED anode; capable of 40 V swing relative to GND |
| EP (Exposed Pad) | Thermal & electrical ground | Mandatory solder connection to GND plane for thermal dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-side current source | Eliminates need for external sense resistor and op-amp, reducing BOM count and layout area |
| PWM dimming support | Direct EN-pin modulation enables 100 Hz–2 kHz dimming without external gate driver |
| Reverse polarity protection | Withstands -16 V applied to VS - protects against battery misconnection in service environments |
| Overload and thermal shutdown | Auto-recovery after fault clearance; prevents latch-up during short-circuit or ambient overtemperature |
| Low-power sleep mode | 0.1 µA quiescent current extends vehicle battery life during extended off-state |
Applications
| Tail/Brake Light Module | Interior Ambient Lighting |
|---|---|
|
Use Scenario: Driving red/amber LEDs in rear combination lamps subject to ISO 16750-2 load dump and thermal cycling. IC Role / Device Role / Timing Role: High-side constant-current regulator providing stable 180 mA per channel independent of 9–16 V battery variation. Use Value: Maintains photometric compliance across temperature (-40°C to +85°C ambient) and eliminates brightness drift due to supply ripple. |
Use Scenario: Controlling RGB or white LED strings in dashboard backlighting and footwell illumination. IC Role / Device Role / Timing Role: Single-channel current sink enabling smooth PWM dimming via EN pin at 1 kHz without audible noise. Use Value: Enables flicker-free dimming down to 1% duty cycle while maintaining color consistency across LED batches. |
| Side Marker Lamp | Turn Signal Indicator |
|
Use Scenario: Powering amber LEDs in side repeater lamps mounted on door panels or fenders. IC Role / Device Role / Timing Role: High-side driver with reverse-polarity and overvoltage protection for field-replaceable modules. Use Value: Survives jump-start events and accidental reverse-battery connection without damage or fuse blow. |
Use Scenario: Flashing amber LEDs in front/rear turn signal circuits with thermal derating at elevated ambient. IC Role / Device Role / Timing Role: Current-regulated output with automatic thermal foldback above 135°C junction temperature. Use Value: Prevents LED degradation during prolonged flashing in hot climates by limiting IOUT to safe thermal boundary. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side LED current source applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NCV7683 | 3-channel, 150 mA/channel, SPI-configurable, no exposed thermal pad | Requires MCU interface; less suitable for standalone analog dimming | Choose when multi-channel control and diagnostics are needed over thermal performance |
| STMicroelectronics LED2001 | Single-channel, 350 mA max, SO-8 package, no reverse polarity protection | Lacks integrated reverse-voltage hardening; needs external diode | Choose for cost-sensitive non-automotive applications where reverse connection risk is mitigated externally |
Compared with NCV7683 and LED2001, the TLD1120ELXUMA1 offers superior thermal management via exposed pad, built-in reverse polarity tolerance, and simpler analog current setting - making it optimal for robust, single-channel automotive LED lighting where layout space and fault resilience are critical.
Availability
TLD1120ELXUMA1 is available at Aetrix Electronics and suitable for tail/brake light modules, interior ambient lighting systems, and side marker lamp assemblies requiring stable component supply across automotive production lifecycles.
Supply support for TLD1120ELXUMA1 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 ICs, and sensor solutions, with global manufacturing and quality certification to AEC-Q100 standards.
The LITIX™ Basic product line delivers robust, cost-optimized LED drivers for automotive exterior and interior lighting, emphasizing functional safety, thermal resilience, and simplified system integration.
FAQ
What is the maximum continuous output current for TLD1120ELXUMA1 in a standard 2s2p PCB layout?
The TLD1120ELXUMA1 supports up to 360 mA continuous output current when mounted on a 2-layer PCB with 2 inner copper layers and thermal vias under the exposed pad, achieving RthJA ≈ 43 K/W at 135°C ambient - verified per JEDEC JESD51-5/-7 simulation conditions.
Can the IN_SET pin accept a PTC thermistor for LED overtemperature protection?
Yes - the IN_SET pin supports direct connection of a PTC thermistor in series with the RSET resistor. As temperature rises, PTC resistance increases, reducing IOUT proportionally to protect LEDs from thermal runaway during ambient overtemperature conditions.
Does TLD1120ELXUMA1 require an external bootstrap capacitor for high-side operation?
No - the device integrates an internal charge pump and does not require an external bootstrap capacitor. The high-side output stage is fully self-contained, simplifying layout and eliminating a common failure point in discrete high-side driver designs.
How does the EN pin behave during power-up and fault recovery?
The EN pin initiates power-on reset with a 100 µs typical delay (tPOR) after VEN exceeds 5 V. During fault-induced shutdown (e.g., overtemperature), the device automatically resumes normal operation once the fault clears and VEN remains high - no external reset pulse required.
TLD1120ELXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- LITIX™
- Package/Case:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Linear
- Topology:
- -
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 5.5V
- Voltage - Supply (Max):
- 40V
- Voltage - Output:
- 40V
- Current - Output / Channel:
- 360mA
- Frequency:
- -
- Dimming:
- -
- Applications:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SSOP-14-EP
TLD1120ELXUMA1 FAQ
1.How can I place an order for TLD1120ELXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD1120ELXUMA1 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 TLD1120ELXUMA1 reliable?
The price and inventory of TLD1120ELXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD1120ELXUMA1 is usually 5 days.
3.What payment methods are accepted for TLD1120ELXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD1120ELXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD1120ELXUMA1?
TLD1120ELXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD1120ELXUMA1 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 TLD1120ELXUMA1?
For technical support, including TLD1120ELXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD1120ELXUMA1 requirements.
6.How does Aetrix verify that TLD1120ELXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLD1120ELXUMA1 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 TLD1120ELXUMA1 meets industry standards.
7.What is the process for return or replacement of TLD1120ELXUMA1?
All TLD1120ELXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLD1120ELXUMA1, 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 TLD1120ELXUMA1 part is unused and in its original packaging.
Return procedure for TLD1120ELXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLD1120ELXUMA1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
Infineon Technologies
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BCR421UE6327HTSA1
Infineon Technologies
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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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