TLD40203ETXUMA2 - 3-Ch 51.5mA LIN RGB LED Driver | Infineon
MPN: TLD40203ETXUMA2 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.41 | $1,205.00 |
| 1,000 | $2.15 | $2,150.00 |
Drop-in alternatives for TLD40203ETXUMA2 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TLD40203ETXUMA1
β Drop-Inπ Reference alternative (not in catalog)
TLD40203ETXUMA3
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TLD4020-3ET
β Drop-Inπ Reference alternative (not in catalog)
TLD700216ESXUMA1
β Drop-Inβ In Stock
$2.18 / Unit
View Datasheet βTLD40203ETXUMA2 Maximum Ratings & Electrical Characteristics
| Topology | 3-channel linear current sink |
| Number of Outputs | 3 |
| Per-Channel Output Current | 51.5 mA |
| Supply Voltage Range | 5.5 V to 29 V |
| Dimming Method | PWM (programmable via LIN) |
| Communication Interface | LIN (LIN 2.x compatible) |
| Package | PG-TFDSO-16-1 (exposed pad) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 Β°C to +125 Β°C (Tj) |
| Diagnostic Features | Open-load, short-to-GND, short-to-VBAT |
| ESD Protection | Β±4 kV HBM (LIN bus pins, typical) |
| Maximum Junction Temperature | 150 Β°C |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| AEC-Q100 Qualification | Qualified (automotive grade) |
TLD40203ETXUMA2 Pin Configuration
| Pin 1 | OUT1 β Current sink output channel 1 (typically Red LED) |
| Pin 2 | OUT2 β Current sink output channel 2 (typically Green LED) |
| Pin 3 | OUT3 β Current sink output channel 3 (typically Blue LED) |
| Pin 4 | VSUP β Battery supply input (5.5 V to 29 V) |
| Pin 5 | LIN β LIN bus transceiver pin |
| Pin 6 | WAKE β Wake-up input (function depends on firmware variant) |
| Pin 7 | GND β Ground |
| Pin 8 | NC β Not connected (per datasheet) |
| Pin 9 | NC β Not connected (per datasheet) |
| Pin 10 | NC β Not connected (per datasheet) |
| Pin 11 | NC β Not connected (per datasheet) |
| Pin 12 | NC β Not connected (per datasheet) |
| Pin 13 | NC β Not connected (per datasheet) |
| Pin 14 | NC β Not connected (per datasheet) |
| Pin 15 | NC β Not connected (per datasheet) |
| Pin 16 | EP β Exposed pad - thermal and ground return, must be soldered to PCB |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLD40203ETXUMA2 is suitable for 6 applications: Automotive RGB Ambient Interior Lighting, Multi-Color Status Indicators, Decorative LED Strips with LIN Control, Automotive Rear Combination Lamps (RGB Functions), Smart Home Color-Tunable Downlights, Industrial RGB Tower Lights.
Automotive RGB Ambient Interior Lighting
The TLD40203ETXUMA2 is purpose-built for automotive LIN-controlled RGB ambient lighting in roof consoles, door panels, and footwells. Its three 51.5 mA current sinks directly drive R, G, and B LEDs with matched brightness, while PWM dimming via the LIN bus enables smooth color mixing and brightness fade effects. The device's -40 Β°C to +125 Β°C junction range and integrated open-load/short-to-GND/short-to-VBAT diagnostics meet OEM requirements for fault reporting to the body-control module. Compared with discrete MOSFET + op-amp solutions, it cuts BOM count and PCB area while keeping the LIN protocol stack compliant with the OEM's existing software.
Recommended
Multi-Color Status Indicators
For industrial control panels and HMIs, the TLD40203ETXUMA2 provides three independently addressable current sinks that can drive red/green/blue status LEDs from a single LIN node, reducing wiring harness complexity. Each channel's 51.5 mA capability supports both standard and high-brightness LEDs, while the LIN interface allows remote reconfiguration of color and blink pattern from a central controller. The PG-TFDSO-16-1 exposed-pad package dissipates the modest linear-drop heat directly into the PCB copper, eliminating the need for an external heatsink in well-ventilated enclosures.
Recommended
Decorative LED Strips with LIN Control
Decorative and architectural LED strips benefit from the TLD40203ETXUMA2's per-channel PWM dimming and LIN programmability. By placing one driver IC per RGB node along the strip, designers achieve individual pixel control without running dedicated PWM lines from a master MCU. The 5.5 V to 29 V supply range accommodates both 12 V and 24 V system rails, and the integrated diagnostics detect open LED, short-to-ground, and short-to-supply faults that are critical in field-deployed decorative installations. The PG-TFDSO-16-1 footprint allows dense PCB layouts behind each LED segment.
Recommended
Automotive Rear Combination Lamps (RGB Functions)
The TLD40203ETXUMA2 suits rear combination lamp sub-functions that require RGB capability such as dynamic turn indicators and welcome animations. Its AEC-Q100 qualification and 125 Β°C junction rating match under-hood and behind-lens thermal environments. Designers can drive each lamp segment with one driver and report per-channel diagnostics back to the BCM via LIN, enabling compliance with automotive functional-safety expectations for lighting fault reporting. The linear topology also eliminates the EMI emissions that switching drivers can couple into nearby radio antenna paths.
Recommended
Smart Home Color-Tunable Downlights
In smart-home lighting, the TLD40203ETXUMA2 enables a compact color-tunable downlight module that receives brightness and hue commands over a LIN-to-wireless gateway. Each channel's 51.5 mA output drives mid-power RGB LEDs at typical residential dimming levels (10-30 mA per channel), and the small PG-TFDSO-16-1 footprint fits within the confined ceiling-can geometry. The driver's integrated fault detection supports predictive-maintenance features that alert the homeowner when an LED is failing.
Recommended
Industrial RGB Tower Lights
Industrial stack-light towers commonly stack red, amber, and green indicators, but newer 'full-color' machines use RGB stacks that benefit from the TLD40203ETXUMA2's per-channel programmability. The 29 V supply tolerance accommodates 24 V industrial rails with transients, and the device's robust ESD protection on the LIN pin tolerates factory-floor handling. Through the LIN interface, a PLC can dynamically assign color codes to indicate machine state, increasing diagnostic bandwidth without adding I/O modules.
Recommended
Recommended Products Summary
Engineering reference data for TLD40203ETXUMA2 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLD40203ETXUMA1 | TLD40203ETXUMA3 | TLD4020-3ET | TLD700216ESXUMA1 |
|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TFDSO-16-1 | PG-TFDSO-16-1 | PG-TFDSO-16-1 | PG-TFDSO-16-1 | PG-TSDSO-16-1 |
| Channels | 3 | 3 | 3 | 3 | 3 |
| Per-Channel Current | 51.5 mA | 51.5 mA | 51.5 mA | 51.5 mA | [DATA_NEEDED] |
| Supply Voltage | 5.5 V to 29 V | 5.5 V to 29 V | 5.5 V to 29 V | 5.5 V to 29 V | 5.5 V to 29 V |
| Interface | LIN | LIN | LIN | LIN | LIN |
| Dimming Method | PWM via LIN | PWM via LIN | PWM via LIN | PWM via LIN | PWM via LIN |
| Automotive Qualified (AEC-Q100) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated LIN transceiver eliminates external LIN IC (vs Discrete LIN transceiver + 3-channel LED driver solution)
- Three independent 51.5 mA current sinks with per-channel diagnostics (vs TLD700216ESXUMA1 (different package, different register map))
- AEC-Q100 qualification for automotive in-cabin lighting (vs Industrial-grade LIN LED drivers from competitors)
Design Notes
Estimated: at VSUP = 13.5 V, VLED (red channel) = 2.0 V, full-scale current 51.5 mA on all three channels, package dissipation is roughly (13.5 V - 2.0 V) Γ 0.0515 A Γ 3 β 1.78 W. The PG-TFDSO-16-1 thermal pad must be soldered to at least 50 mmΒ² of 2 oz copper on the top layer (and stitched vias to a bottom-layer copper pour) to keep the junction rise under 50 K. Always validate against the manufacturer's thermal derating curve for your specific PCB stack-up.
Place a 100 nF X7R decoupling capacitor as close as possible to the VSUP pin and a bulk 10 Β΅F electrolytic or tantalum capacitor within 5 mm to suppress load-dump and cranking transients on the automotive battery rail. The exposed thermal pad must be soldered to a continuous copper pour with at least four thermal vias (0.3 mm drill, 1 oz plating) to the inner/outer ground plane. Keep the LIN trace short and route it away from switching nodes; add a 1 nF X7R + ESD diode (e.g., Infineon ESD5V0S1B-N) right at the LIN connector pin.
Do not connect LED anodes to a supply that exceeds 29 V continuously - the OUT pins are current sinks referenced to GND and tolerate VSUP only up to the absolute-maximum rating. Do not leave the LIN pin floating; either connect it to the LIN master or to GND via a defined pull-down to avoid spurious wake-ups. When using PWM dimming below 1% duty, ensure the LIN-programmed PWM frequency stays within the driver's supported range (typically 100 Hz to 1 kHz) to avoid visible flicker artifacts. Finally, do not rely on the diagnostic bits as a safety mechanism - they are intended for service diagnostics only.
Compliance Information
AEC-Q100 qualified per Infineon product family datasheet. RoHS and REACH compliant per Infineon product page. Halogen-free per Infineon packaging materials declaration.
