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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > LED Drivers

Infineon Technologies TLD5190QUXUMA1

Name: TLD5190QUXUMA1
Brand: Infineon Technologies
SKU: TLD5190QUXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLD5190QUXUMA1

Manufacturer:: Infineon Technologies

Category:: LED Drivers

Package:: 48-TQFP Exposed Pad

Datasheet:: TLD5190QUXUMA1.pdf

Description:: IC LED DRIVER CTRLR PWM TQFP48-9

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TLD5190QUXUMA1 from Infineon Technologies is a synchronous H-bridge DC/DC controller for high-power LED current regulation in automotive lighting systems, supporting buck-boost topology with 4.5 V–55 V power input, 200 kHz–700 kHz adjustable switching frequency, and ±3% LED current accuracy. It integrates dual high-side/low-side gate drivers (R_DS(ON) = 2.3 Ω / 1.2 Ω), spread-spectrum EMC optimization, and analog/PWM dimming for matrix headlamp and pixel light applications.

For engineers reviewing the TLD5190QUXUMA1 datasheet, TLD5190QUXUMA1 pinout, TLD5190QUXUMA1 application, or TLD5190QUXUMA1 equivalent, key selection criteria include H-bridge gate drive capability, VIN/VOUT voltage range compatibility, diagnostic flag behavior (EF1/EF2), soft-start timing control via CSOFT_START, and thermal shutdown with autorestart in AEC-Q100 Grade 1 environments.

Technical Context

The TLD5190QUXUMA1 implements a current-mode controlled H-bridge architecture with independent SWN1/SWN2 switch nodes, enabling bidirectional energy transfer for buck-boost LED driving. Its dual gate drivers support external n-channel MOSFETs with bootstrap biasing (BST1/BST2) and dedicated current sense inputs (SWCS/SGND) referenced to power ground.

It features integrated protection logic including open-load detection during ON-state, input overvoltage lockout (INOVLO), and dual error flags (EF1/EF2) with distinct fault mapping-EF1 asserts on short-to-GND or overtemperature, EF2 on open-load or output overvoltage. The device operates with internal 2 V reference (VREF) and supports external synchronization (SYNC) or clock output (CLKOUT) for multi-phase system coordination.

Key Specifications

Parameter	Value and Actual Design Meaning
V_IN Range	4.5 V to 40 V - Supplies internal bias circuitry; must be within this range for guaranteed operation of control logic and gate drivers.
V_POW Range	4.5 V to 55 V - Power stage input voltage range; defines maximum bus voltage handling for external MOSFETs and inductor selection.
f_SW	200 kHz to 700 kHz - Adjustable via resistor on FREQ pin; higher frequencies reduce passive size but increase switching losses.
LED Current Accuracy	±3% - Measured at I_LED feedback pins (FBH/FBL); enables precise luminance control without calibration in production.
Gate Driver R_DS(ON)	HSGD: 2.3 Ω, LSGD: 1.2 Ω @ T_j = 25°C - Determines minimum external MOSFET gate charge time and peak gate current capability.
Diagnostic Outputs	EF1 (short/overtemp), EF2 (open-load/overvoltage) - Open-drain flags with separate fault classification for deterministic system-level error handling.
V_REF Output	2.0 V ±1% - Stable reference for analog dimming and temperature compensation circuits; requires 100 nF local bypass.

Pinout & Package

Package: PG-VQFN-48-31 (exposed thermal pad), RoHS-compliant, AEC-Q100 qualified, thermally enhanced for automotive under-hood use.

Pin/Terminal	Circuit Role	Design Meaning
HSGD1, HSGD2	High-side gate driver outputs	Drive top n-MOSFET gates with bootstrapped voltage; require BST1/SWN1 and BST2/SWN2 capacitor networks.
LSGD1, LSGD2	Low-side gate driver outputs	Drive bottom n-MOSFET gates referenced to PGND; enable synchronous rectification and bidirectional current flow.
SWN1, SWN2	Switch node terminals	Connect to external MOSFET drains; swing from -0.7 V to VIN (SWN1) or GND to V_OUT+0.7 V (SWN2).
FBH / FBL	Current sense differential inputs	Measure LED current via external shunt; common-mode range supports up to 55 V output voltage.
EF1 / EF2	Dedicated open-drain fault flags	EF1: active-low on short-circuit or thermal shutdown; EF2: active-low on open-load or overvoltage condition.
VREF	2 V precision reference output	Provides stable bias for analog dimming resistors and external temperature compensation networks.

Key Features

Feature	Design Value
Synchronous H-bridge control	Enables buck, boost, and buck-boost LED driving topologies with single inductor and minimal external components.
Spread spectrum modulation	Reduces peak EMI emissions by dithering switching frequency; enabled via SPREAD_SPECTRUM pin.
Dual diagnostic error flags	EF1 and EF2 provide hardware-level fault isolation without microcontroller intervention for ASIL-B compliance.
Adjustable soft-start	CSOFT_START capacitor sets ramp time to limit inrush current and prevent voltage overshoot at startup.
Input current monitoring	IINMON output delivers 20× scaled VIN1–VIN2 differential voltage for real-time input power supervision.

Applications

Automotive Matrix Headlamps

Pixel Light Systems

Use Scenario: Dynamic beam shaping using individually addressable LED segments in adaptive front-lighting systems (AFS).

IC Role / Device Role / Timing Role: H-bridge DC/DC controller regulating current per LED string with PWM dimming synchronized across multiple TLD5190 units via CLKOUT/SYNC.

Use Value: Enables <100 µs response time per segment and ±3% current matching across 100+ LEDs for glare-free high-beam assist.

Use Scenario: High-resolution automotive lighting with >1000 individually controllable pixels per headlamp module.

IC Role / Device Role / Timing Role: Primary current regulator for each pixel sub-string, operating in buck-boost mode to maintain constant current despite varying forward voltage across temperature and aging.

Use Value: Supports 55 V max output to drive stacked LED configurations while maintaining <1% current drift over -40°C to +125°C ambient.

LED Fog Lamp Drivers

Commercial Vehicle Rear Lighting

Use Scenario: High-intensity fog lamps requiring robust operation under wide battery voltage variation (9 V–16 V) and load dump transients.

IC Role / Device Role / Timing Role: Buck-boost LED driver with INOVLO and EN/INUVLO pins configured for 9 V–16 V UVLO hysteresis and 32 V overvoltage shutdown.

Use Value: Maintains regulated LED current during cold-crank (6.5 V) and load dump (40 V) events without latch-off or reconfiguration.

Use Scenario: Stop/tail/turn signal modules in trucks and buses with 24 V nominal supply and harsh vibration/thermal cycling.

IC Role / Device Role / Timing Role: Constant-current LED driver with thermal shutdown (autorestart) and open-load diagnostics for fail-safe indication compliance (ECE R128).

Use Value: Delivers 96% peak efficiency at 5 A output while meeting AEC-Q100 Grade 1 (−40°C to +125°C) junction temperature requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar H-bridge LED driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX20051ATP/V+T	Single-channel buck-boost controller; no integrated H-bridge gate drivers; requires external high-side drivers.	Lacks native open-load/short diagnostics; relies on external comparators for fault reporting.	Select when system already uses discrete high-side drivers and requires lower BOM count for non-AEC-Q100 designs.
TPS92692QPWPRQ1	Two-channel linear + buck LED driver; no H-bridge topology; limited to 40 V max output.	Supports only analog dimming; lacks spread spectrum and SYNC/CLKOUT for multi-device coordination.	Prefer for cost-sensitive interior lighting where buck-only topology suffices and EMC is less critical.

Compared with MAX20051ATP/V+T and TPS92692QPWPRQ1, the TLD5190QUXUMA1 uniquely integrates full H-bridge gate drivers, dual diagnostic flags with fault-specific mapping, and spread-spectrum modulation-making it the only option qualified for AEC-Q100 Grade 1 matrix headlamp systems requiring simultaneous buck-boost operation and functional safety diagnostics.

Availability

TLD5190QUXUMA1 is available at Aetrix Electronics and suitable for automotive exterior lighting, commercial vehicle rear lighting, and adaptive headlamp systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLD5190QUXUMA1 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 TLD5190QUXUMA1 belongs to Infineon's LITIX™ Power family, designed specifically for high-reliability, high-efficiency LED current regulation in automotive lighting applications demanding AEC-Q100 compliance and functional safety readiness.

FAQ

What is the function of the SPREAD_SPECTRUM pin?

The SPREAD_SPECTRUM pin enables or disables frequency dithering to reduce electromagnetic interference peaks. When pulled high (≥2 V), spread spectrum is active; when low (<0.8 V), it is disabled. This feature improves CISPR 25 Class 5 EMC performance without requiring external components or firmware changes.

How does the TLD5190QUXUMA1 handle open-load detection?

Open-load detection occurs during active ON-state operation by monitoring FBH/FBL differential voltage. If the sensed current falls below threshold (typically <10 mA), EF2 asserts low after a programmable delay. The function is hardware-based and independent of microcontroller polling, ensuring fail-safe behavior per ISO 26262 ASIL-B requirements.

Can the TLD5190QUXUMA1 operate in standalone mode without a microcontroller?

Yes - the device supports fully autonomous operation using analog dimming (via SET pin voltage), internal soft-start (CSOFT_START), and fixed-frequency operation (FREQ pin resistor). CLKOUT provides synchronization to other DC/DC controllers, eliminating need for external timing sources in distributed lighting systems.

What is the purpose of the IVCC_EXT pin?

The IVCC_EXT pin allows external supply of the gate drivers (up to 6 V) instead of relying on the internal 5 V LDO (IVCC). This improves gate drive strength and thermal margin when driving high-Q_g MOSFETs at high switching frequencies or elevated ambient temperatures, especially in continuous high-power operation.

TLD5190QUXUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: LITIX™

Package/Case:: 48-TQFP Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: DC DC Controller

Topology:: Step-Down (Buck), Step-Up (Boost)

Internal Switch(s):: No

Number of Outputs:: 1

Voltage - Supply (Min):: 4.5V

Voltage - Supply (Max):: 40V

Voltage - Output:: 55V

Current - Output / Channel:: -

Frequency:: 200kHz ~ 700kHz

Dimming:: Analog, PWM

Applications:: -

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TQFP-48-9

TLD5190QUXUMA1 FAQ

1.How can I place an order for TLD5190QUXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLD5190QUXUMA1 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 TLD5190QUXUMA1 reliable?

The price and inventory of TLD5190QUXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLD5190QUXUMA1 is usually 5 days.

3.What payment methods are accepted for TLD5190QUXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLD5190QUXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLD5190QUXUMA1?

TLD5190QUXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLD5190QUXUMA1 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 TLD5190QUXUMA1?

For technical support, including TLD5190QUXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLD5190QUXUMA1 requirements.

6.How does Aetrix verify that TLD5190QUXUMA1 is sourced from the original manufacturer or authorized distributors?

All TLD5190QUXUMA1 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 TLD5190QUXUMA1 meets industry standards.

7.What is the process for return or replacement of TLD5190QUXUMA1?

All TLD5190QUXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLD5190QUXUMA1, 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 TLD5190QUXUMA1 part is unused and in its original packaging.

Return procedure for TLD5190QUXUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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