My Inquiry
My Account
Infineon Technologies TLD5098ELXUMA1
- Part No.:
- TLD5098ELXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLD5098ELXUMA1.pdf
- Description:
- IC LED DRIVER CTRLR PWM 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,577
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLD5098ELXUMA1 from Infineon is a multitopology DC/DC controller IC designed for LED driver applications in automotive environments. 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, and integrates analog/PWM dimming, open-circuit/short-to-GND/overvoltage/overtemperature protection.
For engineers reviewing the TLD5098ELXUMA1 datasheet, TLD5098ELXUMA1 pinout, TLD5098ELXUMA1 application, or TLD5098ELXUMA1 equivalent, key selection considerations include its dual dimming interface (PWMI + SET), low-side n-channel MOSFET gate drive capability, integrated 5 V LDO for biasing, current-mode control stability, and AEC-Q100 qualification for harsh automotive use cases.
Technical Context
The TLD5098ELXUMA1 implements current-mode control with slope compensation and leading-edge blanking to ensure stable regulation across wide duty cycles and input ranges. Its internal 5 V LDO powers the gate driver and logic, while the SWCS pin senses switch current via a 300 mV threshold for peak-current limiting.
It features dual feedback paths: FBH/FBL for output voltage/current regulation and OVFB for overvoltage protection using an external resistive divider. The FREQ/SYNC pin enables either resistor-set oscillator operation or synchronization to an external clock within 100–500 kHz capture range.
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 or synchronizable to external clock for EMI reduction. |
| Gate Driver Peak Current | 380 mA sourcing / 550 mA sinking - drives low-side n-channel MOSFETs with fast turn-on/turn-off in high-current LED applications. |
| Current Sense Threshold | 300 mV - enables precise peak-current mode control with minimal power loss in sense resistor. |
| Shutdown Current | < 10 µA - ensures ultra-low quiescent power during system sleep modes. |
| Operating Junction Temp | −40 °C to +150 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive deployment. |
| Protection Functions | Open-circuit, short-to-GND, overvoltage, overtemperature - autonomous fault detection with latch or auto-retry behavior per configuration. |
Pinout & Package
Package: PG-SSOP-14 (RoHS-compliant, thermally enhanced with exposed pad for PCB heat spreading).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IVCC | Internal LDO output | Supplies 5 V bias for internal logic and gate driver; requires local bypass capacitor. |
| 2 SWO | Switch gate driver output | Drives gate of external low-side n-channel MOSFET; peak current up to 550 mA sink. |
| 3 SGND | Current-sense ground reference | Separate ground return for accurate SWCS measurement, minimizing noise coupling. |
| 4 SWCS | Switch current sense input | Detects MOSFET source current via external shunt; triggers current-limit at 300 mV. |
| 5 PWMO | PWM dimming output | Drives external MOSFET for LED string disconnection or PWM-level control. |
| 6 FBH / 7 FBL | Voltage feedback differential inputs | Set output regulation point (current or voltage) via external resistor network; ±61 V differential rating. |
| 8 COMP | Compensation node | Connects external RC network to stabilize error amplifier loop; determines phase margin and transient response. |
| 9 OVFB | Overvoltage protection input | Monitors output via resistive divider; trips protection when voltage exceeds programmed threshold. |
| 10 SET | Analog dimming control | Sets LED current level via analog voltage (0–IVCC); must be tied to IVCC if unused. |
| 11 FREQ/SYNC | Frequency select or sync input | Resistor-to-GND sets oscillator frequency; external clock signal enables synchronization for multi-phase systems. |
| 12 GND | Power ground | Main system ground connection; separate from SGND to avoid sensing errors. |
| 13 EN/PWMI | Enable or PWM input | Logic HIGH enables IC; PWM signal applied here provides primary LED brightness control. |
| 14 IN | Main supply input | Accepts 4.5–45 V input; powers internal LDO and supplies energy to switching stage. |
| EP | Exposed thermal pad | Must connect to inner-layer GND plane via thermal vias for reliable thermal dissipation in automotive ambient. |
Key Features
| Feature | Design Value |
|---|---|
| Multitopology support (Boost/Buck/Buck-Boost/SEPIC/Flyback) | Configurable via external passive components-no firmware or topology-specific IC variants required. |
| Integrated soft-start | Prevents inrush current and output voltage overshoot during power-up, reducing stress on LEDs and passives. |
| Dual dimming interface (analog SET + PWM EN/PWMI) | Enables hybrid dimming schemes: fine-grained analog adjustment plus high-contrast PWM for dynamic range extension. |
| Diagnostic outputs (PWMO, EN_INT/PWM_INT) | Provides real-time fault signaling (e.g., open-load, overtemp) to microcontroller for system-level safety response. |
| AEC-Q100 qualified Grade 1 | Validated for −40 °C to +125 °C ambient operation with extended life testing-meets automotive reliability standards. |
Applications
| Automotive Headlamp Driver | Automotive Tail Lamp Module |
|---|---|
|
Use Scenario: High-brightness LED headlamp with adaptive beam shaping and dynamic dimming. IC Role / Device Role / Timing Role: Primary DC/DC controller regulating constant current to LED strings; manages thermal derating and fault reporting via PWMO and EN_INT. Use Value: Enables compliance with ECE R149 photometric requirements through precise current regulation and fast PWM response (<1 µs edge rate). |
Use Scenario: Red LED stop/tail lamp with sequential turn indication and brake light intensity modulation. IC Role / Device Role / Timing Role: Fixed-current driver supporting multiple LED strings; uses PWMI for PWM-based brake-light intensity ramping and SET for ambient-light-compensated dimming. Use Value: Delivers <10 µA shutdown current during vehicle sleep mode, meeting ISO 16750-2 quiescent power targets. |
| Interior Ambient Lighting Control | Commercial Vehicle Marker Light |
|
Use Scenario: RGBW cabin lighting with smooth color mixing and programmable intensity profiles. IC Role / Device Role / Timing Role: Constant-current source for white LED channel; synchronized via FREQ/SYNC to avoid beat frequencies with other onboard SMPS. Use Value: 100–500 kHz frequency adjustability allows EMI tuning to avoid AM radio band interference in sensitive infotainment zones. |
Use Scenario: 24 V commercial truck marker light with vibration-resistant design and wide-temperature operation. IC Role / Device Role / Timing Role: Buck-mode LED driver operating from 12–32 V nominal supply; leverages overvoltage protection to survive 60 V load-dump transients. Use Value: Integrated short-to-GND and open-circuit diagnostics reduce need for external monitoring circuitry, lowering BOM count and failure points. |
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 (TI) | Single-topology (boost-only); no integrated LDO; requires external gate driver; lacks diagnostic outputs. | Limited to boost LED drivers without fault reporting; unsuitable for AEC-Q100-compliant automotive designs. | Select only for cost-sensitive non-automotive boost LED applications where diagnostics and multitopology flexibility are unnecessary. |
| MAX20050ATP/V+ (Maxim) | Fixed-frequency 2.2 MHz operation; integrated high-side switch; no analog dimming (SET pin); smaller 10-pin TDFN package. | Better suited for space-constrained interior lighting; lacks flexibility for buck/flyback configurations and thermal robustness for under-hood use. | Prefer for compact, high-frequency interior modules where board area is critical and topology is fixed to buck. |
Compared with LM3410XMY/NOPB and MAX20050ATP/V+, the TLD5098ELXUMA1 uniquely combines AEC-Q100 qualification, five configurable topologies, dual dimming interfaces, and comprehensive diagnostics-making it the only option qualified for safety-critical exterior automotive lighting with system-level fault handling.
Availability
TLD5098ELXUMA1 is available at Aetrix Electronics and suitable for automotive headlamp systems, commercial vehicle marker lights, interior ambient lighting modules, and industrial LED signage requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLD5098ELXUMA1 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 manufacturing and quality certification aligned to IATF 16949.
The TLD5098ELXUMA1 belongs to Infineon's LITIX™ Power product line-designed specifically for robust, high-reliability LED driver control in automotive lighting systems demanding functional safety and long-term supply stability.
FAQ
What is the maximum duty cycle supported in fixed-frequency mode?
The TLD5098ELXUMA1 supports up to 95% maximum duty cycle in fixed-frequency operation, enabling high step-up ratios in boost configurations-critical for driving high-Vf LED strings from low-input automotive batteries. This value is confirmed in datasheet Table 1 under Dmax,fixed, and remains stable across temperature due to current-mode control with slope compensation.
Can the TLD5098ELXUMA1 drive a high-side MOSFET directly?
No-the TLD5098ELXUMA1 integrates a low-side n-channel MOSFET gate driver (SWO pin) and is not designed for direct high-side drive. It requires external bootstrap or isolated gate driver circuitry for high-side configurations. The datasheet explicitly specifies "drives low-side external n-channel switching MOSFET" and provides no high-side gate drive capability or floating supply rail.
How does the OVFB pin function during overvoltage events?
The OVFB pin monitors output voltage via an external resistive divider; when the divided voltage exceeds the internal 1.25 V threshold, the IC disables switching and asserts fault status via EN_INT/PWM_INT. Recovery depends on configuration-latch-off or auto-restart-and is independent of FBH/FBL regulation loop, ensuring fail-safe protection even during feedback loop faults.
Is the SET pin required to be biased when analog dimming is disabled?
Yes-the datasheet states that the SET pin "must not be left open" and specifies connecting it to IVCC if analog dimming is unused. Leaving it floating risks undefined current regulation behavior and potential instability, as the internal analog dimming amplifier input is uncontrolled. This requirement is documented in Section 3.2 Pin Definitions and Function, Table 2.
TLD5098ELXUMA1 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:
- Not For New Designs
- Type:
- DC DC Controller
- Topology:
- Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 45V
- Voltage - Output:
- 4.5V ~ 5.5V
- Current - Output / Channel:
- -
- Frequency:
- 100kHz ~ 500kHz
- Dimming:
- Analog, PWM
- Applications:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SSOP-14-EP
TLD5098ELXUMA1 FAQ
1.How can I place an order for TLD5098ELXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD5098ELXUMA1 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 TLD5098ELXUMA1 reliable?
The price and inventory of TLD5098ELXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD5098ELXUMA1 is usually 5 days.
3.What payment methods are accepted for TLD5098ELXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD5098ELXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD5098ELXUMA1?
TLD5098ELXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD5098ELXUMA1 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 TLD5098ELXUMA1?
For technical support, including TLD5098ELXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD5098ELXUMA1 requirements.
6.How does Aetrix verify that TLD5098ELXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLD5098ELXUMA1 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 TLD5098ELXUMA1 meets industry standards.
7.What is the process for return or replacement of TLD5098ELXUMA1?
All TLD5098ELXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLD5098ELXUMA1, 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 TLD5098ELXUMA1 part is unused and in its original packaging.
Return procedure for TLD5098ELXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLD5098ELXUMA1 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
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
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…
