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Infineon Technologies TLD5099EPXUMA1
- Part No.:
- TLD5099EPXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 14-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLD5099EPXUMA1.pdf
- Description:
- IC LED DRIVER CTRLR PWM 14TSDSO
- Quantity:
- Payment:
- Shipping:
Inventory:5,498
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Product details
Overview
TLD5099EPXUMA1 from Infineon is a multitopology DC/DC controller IC designed for LED driver applications in automotive lighting systems. It supports boost, buck, buck-boost, SEPIC, and flyback topologies with fixed-current or fixed-voltage regulation, operates from 4.5 V to 45 V input, features 100–500 kHz adjustable switching frequency, integrated 5 V LDO for gate drive, and analog/PWM dimming with <15 µA shutdown current at 105°C.
For engineers reviewing the TLD5099EPXUMA1 datasheet, TLD5099EPXUMA1 pinout, TLD5099EPXUMA1 application, or TLD5099EPXUMA1 equivalent, key selection considerations include its dual dimming capability, spread spectrum EMI reduction, open-circuit/short-to-ground diagnostics, overvoltage protection, and AEC-Q100 qualification for harsh automotive environments.
Technical Context
The TLD5099EPXUMA1 implements current-mode control with slope compensation and soft-start for stable loop response using minimal external compensation components. Its integrated oscillator supports both internal resistor-based frequency setting (250–500 kHz) and external clock synchronization (up to 88% duty cycle in sync mode).
It integrates a 5 V linear regulator (IVCC) powering internal circuitry and the SWO gate driver (380 mA peak sourcing / 550 mA sinking), while separate PWMO output drives external PWM dimming MOSFETs. Diagnostic functions include real-time SWCS current sensing, OVFB overvoltage monitoring, and thermal shutdown with hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input voltage range | 4.5 V to 45 V - supports full automotive battery range including cold crank and load dump conditions |
| Switching frequency | 100 kHz to 500 kHz - adjustable via external resistor; enables EMI optimization and magnetics size trade-offs |
| Gate driver output | SWO: 380 mA sourcing / 550 mA sinking - directly drives low-side n-channel MOSFETs without external buffers |
| Shutdown current | <15 µA at 105°C - enables ultra-low power-off state for always-on vehicle systems |
| Dimming support | Analog (SET pin) and PWM (EN/PWMI & PWMO) - preserves LED color consistency and enables precise brightness control |
| Protection features | Open-circuit, short-to-GND, overvoltage (OVFB), overtemperature - autonomous fault detection without host MCU intervention |
| AEC-Q100 grade | Qualified per AEC-Q100 Rev G - rated for automotive ambient temperatures (−40°C to +125°C junction) |
Pinout & Package
Package: PG-TSDSO-14 (thermally enhanced 14-pin thin shrink small outline package with exposed pad for PCB heat dissipation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IVCC | Internal LDO output | 5 V regulated supply for internal logic and gate drivers; requires local bypass capacitor |
| 2 SWO | Switch gate driver output | Drives gate of external low-side n-channel MOSFET; 380 mA sourcing capability |
| 3 FPWM | PWM frequency selector | Connects external capacitor to set embedded PWM dimming frequency (not main switching frequency) |
| 4 SWCS | Current sense input | Monitors peak switch current for cycle-by-cycle current limiting and regulation |
| 5 PWMO | PWM dimming output | Drives gate of external MOSFET for high-side or low-side LED current shunting dimming |
| 6 FBH | Feedback positive input | Non-inverting input of error amplifier; used with FBL to regulate output voltage or current |
| 7 FBL | Feedback negative input | Inverting input of error amplifier; forms differential feedback pair with FBH for noise immunity |
| 8 COMP | Compensation network node | Connects RC network to stabilize control loop; determines phase margin and transient response |
| 9 OVFB | Overvoltage protection input | Monitors output via resistive divider; triggers shutdown if voltage exceeds programmed threshold |
| 10 SET | Analog dimming input | Voltage-controlled current reference; 0–2.5 V range sets LED current level proportionally |
| 11 FREQ/SYNC | Frequency select or sync input | Resistor-to-GND sets switching frequency; accepts external clock for synchronization |
| 12 GND | Power and signal ground | Common return path for all analog/digital circuits and thermal pad connection point |
| 13 EN/PWMI | Enable or PWM input | Logic low disables IC; logic high enables operation; PWM signal enables digital dimming |
| 14 IN | Main supply input | Primary power input (4.5–45 V); powers internal LDO and bias circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Multitopology configuration | Supports Boost, Buck, Buck-Boost, SEPIC, and Flyback by reconfiguring external passive components - eliminates need for multiple controller SKUs |
| Spread spectrum modulation (SSM) | Reduces EMI peak amplitudes by dithering switching frequency across ±10% bandwidth - simplifies compliance testing |
| Dual dimming interface | Simultaneous analog (SET pin) and PWM (EN/PWMI + PWMO) control - enables hybrid dimming for flicker-free, color-stable illumination |
| Integrated diagnostics | Detects open-circuit LEDs, short-to-GND faults, and overvoltage conditions autonomously - reduces system-level monitoring overhead |
| Thermal robustness | Overtemperature shutdown with hysteresis and AEC-Q100 qualification - ensures reliable operation in under-hood environments |
Applications
| Automotive Headlamp Systems | Automotive Tail Lamp Modules |
|---|---|
|
Use Scenario: High-brightness LED arrays in adaptive front-lighting systems requiring precise current regulation and dynamic dimming. IC Role / Device Role / Timing Role: Primary DC/DC controller managing boost topology for constant-current LED string drive with real-time fault reporting. Use Value: Enables AHB (Adaptive Driving Beam) functionality via fast PWM dimming (<1 µs edge rate) and diagnostic feedback to vehicle CAN bus. |
Use Scenario: Red LED brake/tail lamp clusters needing robust operation across wide battery voltage swings and thermal extremes. IC Role / Device Role / Timing Role: Fixed-current buck-boost controller delivering stable 350 mA per channel despite 6–16 V input variation. Use Value: Maintains consistent luminance during cold cranking (4.5 V) and load dump (45 V) without external supervision. |
| Interior Ambient Lighting | Commercial Vehicle Marker Lights |
|
Use Scenario: RGBW cabin lighting with smooth dimming transitions and minimal color shift across intensity levels. IC Role / Device Role / Timing Role: Analog-dimming controller regulating individual LED strings via SET pin voltage with <0.5% current matching. Use Value: Achieves CIE 1931 chromaticity deviation <0.003 Δu'v' during 0–100% dimming using embedded PWM + analog hybrid mode. |
Use Scenario: Heavy-duty truck side marker lamps exposed to vibration, moisture, and extended temperature cycling. IC Role / Device Role / Timing Role: SEPIC-based driver providing galvanic isolation and reverse-polarity protection for 24 V systems. Use Value: Survives 1000+ thermal cycles (−40°C to +125°C) and meets ISO 16750-4 mechanical shock requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM3410XMY/NOPB | Limited to boost topology only; no spread spectrum; no open-circuit detection; 3–24 V input range | Suitable for cost-sensitive non-automotive LED lighting; lacks AEC-Q100 qualification and diagnostic coverage | Select when topology is fixed boost and diagnostics are handled externally; not suitable for ASIL-B systems |
| MAX16832AATG+ | Fixed-frequency (2.2 MHz); no synchronization; no analog dimming; 4.5–65 V input; no integrated LDO | Targets high-frequency, space-constrained designs; requires external 5 V bias rail and external current sense amplifier | Choose for compact PCB layouts where EMI filtering area is constrained and external bias is available |
Compared with LM3410XMY/NOPB and MAX16832AATG+, the TLD5099EPXUMA1 uniquely combines multitopology flexibility, AEC-Q100 qualification, integrated diagnostics, and dual dimming-making it the only option qualified for functional safety–aware automotive lighting modules.
Availability
TLD5099EPXUMA1 is available at Aetrix Electronics and suitable for automotive headlamp systems, commercial vehicle marker lights, interior ambient lighting, and exterior signaling applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLD5099EPXUMA1 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, with global R&D and manufacturing infrastructure.
The LITIX™ Power product line delivers highly integrated, AEC-Q100-qualified LED driver controllers optimized for automotive lighting systems demanding reliability, diagnostics, and design flexibility across diverse topologies.
FAQ
What topologies does the TLD5099EPXUMA1 support, and how is topology selected?
The TLD5099EPXUMA1 supports boost, buck, buck-boost, SEPIC, and flyback configurations. Topology is determined solely by external passive component arrangement - no internal register programming or pin strapping is required. For example, connecting the inductor between VIN and SWO enables boost; placing it between SWO and GND configures buck. The datasheet provides validated schematics for each topology.
How does the spread spectrum modulator improve EMI performance?
The spread spectrum modulator dithers the switching frequency by ±10% around the nominal value, distributing harmonic energy across a wider bandwidth instead of concentrating it at discrete multiples of fSW. This reduces peak radiated emissions by up to 10 dB in the 30–1000 MHz range, easing CISPR 25 Class 5 compliance without adding ferrite beads or shielding cans.
Can the TLD5099EPXUMA1 operate without an external microcontroller?
Yes - it operates autonomously with no firmware or communication interface required. All regulation, dimming, protection, and diagnostics are implemented in hardware. The EN/PWMI pin accepts direct logic-level enable signals or PWM inputs, and fault conditions trigger automatic shutdown with status indicated via IVCC voltage droop or external FAULT pin (via optional external circuit).
What is the role of the exposed thermal pad (EP) on the PG-TSDSO-14 package?
The exposed pad is electrically connected to GND and serves as the primary thermal conduction path. It must be soldered to a dedicated PCB copper pour tied to inner-layer GND planes via ≥6 thermal vias (0.3 mm diameter). Proper mounting reduces junction-to-board thermal resistance to 22°C/W, enabling full 150°C junction operation at 1.2 W dissipation without heatsink.
TLD5099EPXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- LITIX™
- Package/Case:
- 14-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Controller
- Topology:
- Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 8V
- Voltage - Supply (Max):
- 34V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 100kHz ~ 500kHz
- Dimming:
- PWM
- Applications:
- Lighting
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TSDSO-14
TLD5099EPXUMA1 FAQ
1.How can I place an order for TLD5099EPXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD5099EPXUMA1 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 TLD5099EPXUMA1 reliable?
The price and inventory of TLD5099EPXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD5099EPXUMA1 is usually 5 days.
3.What payment methods are accepted for TLD5099EPXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD5099EPXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD5099EPXUMA1?
TLD5099EPXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD5099EPXUMA1 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 TLD5099EPXUMA1?
For technical support, including TLD5099EPXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD5099EPXUMA1 requirements.
6.How does Aetrix verify that TLD5099EPXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLD5099EPXUMA1 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 TLD5099EPXUMA1 meets industry standards.
7.What is the process for return or replacement of TLD5099EPXUMA1?
All TLD5099EPXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLD5099EPXUMA1, 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 TLD5099EPXUMA1 part is unused and in its original packaging.
Return procedure for TLD5099EPXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLD5099EPXUMA1 Tags
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BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
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BCR420UE6433HTMA1
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BCR420UE6327HTSA1
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BCR421UE6327HTSA1
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CL2N8-G
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BCR420UW6-7
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BCR421UFD-7
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