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Infineon Technologies TLD60981EPXUMA2
- Part No.:
- TLD60981EPXUMA2
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 14-TSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLD60981EPXUMA2.pdf
- Description:
- LITIX POWER BOOST CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:2,163
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Product details
Overview
TLD60981EPXUMA2 from Infineon is a single-channel multi-topology DC-DC controller for automotive LED drivers, supporting buck, boost, and buck-boost configurations with peak current mode control, ±3.5% LED current accuracy, 100–500 kHz adjustable switching frequency, and integrated PMOS dimming gate driver. It operates from 4.5 V to 58 V input and regulates up to 70 V output, targeting front/rear lighting modules.
For engineers reviewing the TLD60981EPXUMA2 datasheet, TLD60981EPXUMA2 pinout, TLD60981EPXUMA2 application, or TLD60981EPXUMA2 equivalent, key selection criteria include its rail-to-rail current sense amplifier enabling >20-white-LED string support, analog/digital PWM dimming (0–100% duty, 150–750 Hz), spread-spectrum EMI reduction, and AEC-Q100 qualification for automotive environments.
Technical Context
The device implements peak current-mode control with internal slope compensation to prevent sub-harmonic oscillation above 50% duty cycle. Its rail-to-rail current sense amplifier enables flexible topology selection across wide output voltage ranges (up to 70 V), while the embedded 10-bit PWM engine provides precise analog-controlled dimming.
Protection logic includes dedicated diagnostic outputs for overvoltage (FBH/FBL), short-to-ground, overcurrent (SWCS), open feedback, and overtemperature events. The FPWM/FAULT pin serves dual function: setting PWM frequency via external resistor or reporting fault status by voltage rise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 58 V - supports direct battery connection in 12 V/24 V automotive systems with transient tolerance. |
| Output Voltage Range | Up to 70 V - enables driving long LED strings (e.g., ≥20 white LEDs at 3.2 V each). |
| LED Current Accuracy | ±3.5% - guaranteed over full temperature range without analog trim, critical for consistent luminance. |
| Switching Frequency | 100–500 kHz (resistor-set) + 2.2 MHz sync capability - balances efficiency, size, and EMI compliance. |
| PWM Dimming Resolution | 10-bit (0–100% duty) at 150–750 Hz - enables flicker-free, high-fidelity brightness control. |
| Diagnostic Outputs | Overvoltage, short-to-ground, overcurrent, open feedback, overtemperature - enables ASIL-B compliant fault handling. |
| Package Thermal Resistance | RthJA = 50 K/W (PG-TSDSO-14) - supports 2.5 W dissipation in automotive ambient (85°C). |
Pinout & Package
Delivered in PG-TSDSO-14 package (exposed pad, RoHS-compliant, AEC-Q100 qualified), optimized for thermal performance in automotive LED driver PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWMO | PMOS gate driver output | Drives external PMOS for LED dimming/short-circuit protection; max 75 V differential swing. |
| SET | Analog current adjustment input | Accepts 0–5.5 V to scale LED current reference; must be tied to IVCC if unused. |
| IVCC | Internal LDO output | 5.5 V regulated supply for internal biasing and gate drive; requires external bypass capacitor. |
| COMP | Loop compensation node | Connects RC network to stabilize current control loop; sensitive to layout parasitics. |
| FPWM/FAULT | Configurable I/O | Resistor sets PWM frequency; rising voltage signals fault condition (OV, OC, OT, etc.). |
| SWCS | Current sense input | Monitors peak switch current via low-side shunt; accepts -0.3 to +0.3 V common-mode range. |
| SWO | nMOS gate driver output | Drives external n-channel power MOSFET gate; rated for 5.5 V swing. |
| FBH / FBL | Differential voltage feedback | Sense output voltage via resistive divider; differential range ±75 V, 150 mV full-scale. |
| GND | Power and signal ground | Common return for SWCS, logic, and exposed pad; must connect EP to GND for thermal path. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-topology support | Buck, boost, buck-boost operation enabled by rail-to-rail current sense amplifier and flexible FBH/FBL inputs. |
| EMC-optimized design | Integrated spread-spectrum modulation reduces peak radiated emissions to meet CISPR 25 Class 5. |
| Embedded PWM engine | On-chip 10-bit generator eliminates external MCU dependency for analog-dimmed LED systems. |
| Comprehensive diagnostics | Five independent fault flags (via FPWM/FAULT pin) enable fail-safe shutdown per ISO 26262 requirements. |
| AEC-Q100 qualification | Qualified to Grade 1 (-40°C to +125°C ambient) with extended life test data supporting 15-year automotive service life. |
Applications
| Front Light Module | Rear Light Module |
|---|---|
Use Scenario: Adaptive driving beam (ADB) headlamp with dynamic LED pixel control. IC Role / Device Role / Timing Role: Primary DC-DC controller regulating constant current to segmented LED arrays, synchronized to vehicle CAN timing. Use Value: ±3.5% current accuracy ensures uniform luminance across 32+ LED zones; 2.2 MHz sync avoids AM band interference. | Use Scenario: Smart tail lamp with sequential turn indication and brake light intensity modulation. IC Role / Device Role / Timing Role: Buck-boost LED driver managing variable battery voltage (9–16 V) while maintaining 600 mA string current. Use Value: Wide 4.5–58 V input range accommodates cold-crank transients; embedded PWM enables 750 Hz flicker-free signaling. |
| Interior Ambient Lighting | Voltage Regulator for Sensor Rails |
Use Scenario: RGBW cabin lighting with smooth color transition and dimming profiles. IC Role / Device Role / Timing Role: Constant-current source for white LED channel, controlled via analog SET voltage from microcontroller DAC. Use Value: 0–5.5 V SET input enables linear 0–100% dimming without software PWM; ±3.5% accuracy prevents visible color shift. | Use Scenario: Stable 5 V rail for camera module or radar sensor in ADAS domain controller. IC Role / Device Role / Timing Role: Boost converter delivering regulated 5 V from 3.3 V auxiliary supply, using TLD6098-1EP in boost topology. Use Value: Differential FBH/FBL sensing rejects noise in high-EMI ADAS environments; 500 kHz switching minimizes inductor size. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED driver controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AL8862Q-13 | Fixed-frequency (500 kHz) buck controller; no spread spectrum; no embedded PWM engine. | Lacks analog/digital dimming integration; requires external MCU for PWM generation. | Select when cost sensitivity outweighs EMI and dimming autonomy requirements. |
| LM3423QMH/NOPB | Current-mode buck controller with 1.25 MHz max frequency; no boost/buck-boost support; no diagnostic outputs. | Supports only buck topology; lacks fault reporting pins for functional safety compliance. | Select for simple, non-safety-critical 12 V LED applications where topology flexibility is unnecessary. |
Compared with AL8862Q-13 and LM3423QMH/NOPB, TLD60981EPXUMA2 uniquely combines multi-topology operation, integrated 10-bit PWM dimming, spread-spectrum EMI control, and five-channel fault reporting-making it the only option qualified for ASIL-B lighting systems requiring autonomous dimming and robust diagnostics.
Availability
TLD60981EPXUMA2 is available at Aetrix Electronics and suitable for automotive front lighting modules, rear lighting modules, interior ambient lighting systems, and ADAS sensor power rails requiring stable component supply and AEC-Q100 compliance.
Supply support for TLD60981EPXUMA2 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 industrial control solutions, with global manufacturing and qualification infrastructure.
The LITIX™ Power product line delivers highly integrated, AEC-Q100-qualified LED driver controllers optimized for automotive lighting systems demanding precision current regulation, functional safety, and EMI robustness.
FAQ
What topologies does TLD60981EPXUMA2 support?
TLD60981EPXUMA2 supports buck, boost, and buck-boost configurations using external power switches. Its rail-to-rail current sense amplifier and differential FBH/FBL inputs enable accurate regulation across all three topologies. The device uses peak current-mode control with internal slope compensation, eliminating need for external compensation in most designs.
How is PWM dimming implemented on TLD60981EPXUMA2?
PWM dimming is implemented via two methods: analog voltage on DC/PWMI pin (0–5.5 V) controlling 10-bit embedded PWM engine (150–750 Hz), or direct digital PWM signal applied to same pin. The PWMO output drives an external PMOS for high-side dimming, with fault protection active during dimming transitions.
What fault conditions does TLD60981EPXUMA2 monitor?
TLD60981EPXUMA2 monitors overvoltage (FBH/FBL), short-to-ground (SWCS), overcurrent (SWCS), open feedback (no voltage on FBH/FBL), and overtemperature (internal die). All faults assert via voltage rise on FPWM/FAULT pin, enabling system-level response without additional monitoring circuitry.
Is TLD60981EPXUMA2 compatible with 24 V commercial vehicle systems?
Yes - its 4.5–58 V input range covers 24 V nominal systems including cold-crank (down to 6 V) and load-dump (up to 60 V) transients per ISO 16750-2. The PG-TSDSO-14 package's RthJA of 50 K/W ensures thermal stability under continuous 2.5 W dissipation at 85°C ambient, typical in truck/trailer lighting enclosures.
TLD60981EPXUMA2 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):
- No
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 58V
- Voltage - Output:
- 0V ~ 70V
- Current - Output / Channel:
- 3mA
- 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
TLD60981EPXUMA2 FAQ
1.How can I place an order for TLD60981EPXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLD60981EPXUMA2 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 TLD60981EPXUMA2 reliable?
The price and inventory of TLD60981EPXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD60981EPXUMA2 is usually 5 days.
3.What payment methods are accepted for TLD60981EPXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD60981EPXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLD60981EPXUMA2?
TLD60981EPXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLD60981EPXUMA2 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 TLD60981EPXUMA2?
For technical support, including TLD60981EPXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD60981EPXUMA2 requirements.
6.How does Aetrix verify that TLD60981EPXUMA2 is sourced from the original manufacturer or authorized distributors?
All TLD60981EPXUMA2 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 TLD60981EPXUMA2 meets industry standards.
7.What is the process for return or replacement of TLD60981EPXUMA2?
All TLD60981EPXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLD60981EPXUMA2, 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 TLD60981EPXUMA2 part is unused and in its original packaging.
Return procedure for TLD60981EPXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLD60981EPXUMA2 Tags
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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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