TLD21413EPXUMA1 - Triple 80mA LED Driver IC | Infineon
MPN: TLD21413EPXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.89 | $0.89 |
| 10 | $0.8 | $8.00 |
| 100 | $0.69 | $69.00 |
| 500 | $0.58 | $290.00 |
| 1,000 | $0.49 | $490.00 |
| 3,000 | $0.42 | $1,260.00 |
TLD21413EPXUMA1 Overview
A high-side LED driver is a semiconductor device that sources current through an LED string from the positive supply rail while the LEDs sit between the driver output and ground. The high-side topology simplifies PCB routing by allowing multiple LED strings to share a common ground, eliminates ground-loop concerns, and enables per-string diagnostics. As a member of the LITIX Basic+ family, the TLD21413EPXUMA1 targets cost-sensitive automotive and industrial lighting where moderate current, fault detection, and small PCB area are critical requirements.
Key features include 80 mA per channel continuous output current (60 mA per the typical-application range), built-in PWM dimming capability down to low duty cycles, three independently controlled constant-current outputs, integrated reverse-polarity protection, and an exposed-pad TSSOP-14 package providing low thermal resistance for sustained high-current operation. Each output stage is trimmed to deliver accurate, channel-matched current without external ballast resistors, which simplifies BOM and improves reliability.
The TLD21413EPXUMA1 uses a precision bandgap reference and matched output transistors to achieve tight current regulation across load, supply, and temperature variations. The high-side current source architecture allows the device to drive LEDs connected to chassis ground, simplifying harness design in automotive rear-combination lamps, signal light modules, and interior RGB ambient lighting strips where channel independence and low EMI are mandatory.
Typical applications include automotive rear lighting (tail, brake, turn signal), RGB ambient interior lighting, status indicator clusters, decorative LED strips, and general industrial signage. The wide 5.5 V to 40 V input range also supports 12 V and 24 V vehicle buses directly without additional pre-regulation.
When designing with the TLD21413EPXUMA1, observe the thermal limits of the PG-TSDSO-14 exposed pad and place sufficient copper pour on the PCB to dissipate up to 1 W per channel. The DIM pin accepts a PWM signal at logic levels; ensure the dimming frequency is below the device's specified maximum to avoid output-stage ringing.
This page consolidates distributor pricing, drop-in compatible LITIX Basic+ alternatives, and practical PCB/thermal design notes - engineering content that goes beyond what is summarized in the manufacturer datasheet.
Drop-in alternatives for TLD21413EPXUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TLD21413EPXUMA1 (same form factor and footprint) — differing in Package, Operating Temperature Range, Topology, Number of Outputs, Automotive Qualification.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLD21413EP
✅ Drop-In📋 Reference alternative (not in catalog)
TLD1125ELXUMA1
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →TLD1211SJFUMA1
✅ Drop-In✓ In Stock
$0.33 / Unit
View Datasheet →TLD5097EPXUMA1
✅ Drop-In✓ In Stock
$1.9 / Unit
View Datasheet →BTS710336ESAXUMA1
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →TLD21413EPXUMA1 Maximum Ratings & Electrical Characteristics
| Product Family | LITIX Basic+ |
| Function | Triple high-side LED driver |
| Number of Outputs | 3 |
| Topology | High-side constant current source |
| Output Current per Channel | 80 mA max (60 mA typical application) |
| Supply Voltage Range | 5.5 V to 40 V |
| Dimming Interface | PWM (logic-level DIM pin) |
| Package | PG-TSDSO-14 (TSSOP-14 with exposed pad) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +150 C junction |
| Thermal Pad | Yes (exposed pad, PG-TSDSO) |
| Integrated Output Stages | Yes (3 power transistors) |
| Channel Matching | Trimmed on-chip (no external ballast) |
| Reverse Polarity Protection | Yes |
| RoHS Status | Compliant |
TLD21413EPXUMA1 Pin Configuration
| Pin 1 | OUT1 — High-side constant-current output 1 |
| Pin 2 | OUT2 — High-side constant-current output 2 |
| Pin 3 | OUT3 — High-side constant-current output 3 |
| Pin 4 | GND — Ground reference |
| Pin 5 | VS — Supply voltage (5.5 V to 40 V) |
| Pin 6 | DIM — PWM dimming input (logic-level) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
| Pin 9 | NC — Not connected (per datasheet) |
| Pin 10 | NC — Not connected (per datasheet) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | NC — Not connected (per datasheet) |
| Pin 14 | NC — Not connected (per datasheet) |
| Pin EP | Exposed Pad — Thermal pad, connect to GND |
Typical Applications
TLD21413EPXUMA1 is suitable for 6 applications: Automotive Rear-Lighting Modules, RGB Ambient Interior Lighting, Industrial Status Indicators, Decorative LED Strip Lighting, Automotive Turn-Signal Repeaters, Two-Wheeler and E-Bike Lighting.
Automotive Rear-Lighting Modules
The TLD21413EPXUMA1 drives the three independent LED strings used in rear-lighting clusters (tail, brake, turn-signal) directly from a 12 V or 24 V vehicle bus. With 80 mA per channel and high-side constant-current regulation, the device eliminates three external MOSFETs and three sense resistors that a discrete design would require. Channel-to-channel matching is trimmed on-chip to within tight tolerance, which avoids the brightness mismatch that occurs with discrete ballast-resistor designs. The 5.5-40 V input range covers 12 V cold-crank and 24 V truck-bus transients without pre-regulation. The exposed PG-TSDSO-14 thermal pad dissipates heat from sustained stop-lamp operation.
Recommended
RGB Ambient Interior Lighting
The TLD21413EPXUMA1's three independent channels map directly to RGB color strings in automotive ambient interior lighting. Each channel's constant-current source accepts a PWM signal at the DIM pin to set color brightness and saturation, producing millions of color points when combined with a small MCU. High-side topology allows the LED strings to share chassis ground, simplifying the harness and reducing wire count. The 80 mA per channel rating supports high-brightness RGB LEDs without additional driver stages. Built-in reverse-polarity protection prevents damage from miswired harnesses during service, a common failure mode in production vehicles.
Recommended
Industrial Status Indicators
Industrial control panels use three-color (red/yellow/green) status indicators that the TLD21413EPXUMA1 can drive directly from a 24 V industrial bus. The 5.5-40 V input range covers both 12 V and 24 V control cabinets without modification. Each constant-current output ensures consistent LED brightness across the full industrial temperature range (-40 to +125 C ambient), regardless of supply voltage variation. The PWM DIM input allows the host PLC to dim or blink individual indicators without additional circuitry. Compared to discrete designs, the integrated TLD21413EPXUMA1 reduces panel BOM cost and PCB area by roughly 40 percent.
Recommended
Decorative LED Strip Lighting
Architectural and signage applications use long parallel LED strips that the TLD21413EPXUMA1 can drive from a single 24 V supply. Each of the three channels sources up to 80 mA, sufficient for multiple high-brightness LEDs in series per channel, or for parallel strings with current balancing. The PG-TSDSO-14 exposed-pad package handles the continuous dissipation required by always-on signage. PWM dimming at the DIM pin enables synchronized brightness control across the entire installation. Compared to resistor-ballasted strips, the constant-current regulation prevents brightness drift as the supply voltage varies with load, and avoids the thermal runaway that plagues resistor designs.
Recommended
Automotive Turn-Signal Repeaters
Side mirror-mounted turn-signal repeaters and door-handle illumination LEDs use the TLD21413EPXUMA1 in compact PCB areas where the PG-TSDSO-14 exposed-pad package fits. The high-side topology keeps the LED cathodes at chassis ground, simplifying the mirror-harness connector pin count from three to two per channel group. Reverse-polarity protection shields the IC from the wiring errors common during mirror replacement. The 80 mA per-channel rating supports high-visibility automotive-grade LEDs without additional driver stages. Junction-temperature monitoring via the exposed pad allows PCB copper pour to be sized correctly for the mirror's enclosed thermal environment.
Recommended
Two-Wheeler and E-Bike Lighting
Electric bicycles, e-scooters and motorcycles operate from compact 12-36 V battery systems that the TLD21413EPXUMA1 supports directly. The triple-channel output drives headlight, brake-light and turn-signal from a single IC, reducing wiring harness complexity and PCB area in space-constrained two-wheeler ECUs. The exposed-pad PG-TSDSO-14 package dissipates the heat generated by sustained headlight operation. PWM dimming enables daytime-running-light modes without an additional driver stage. The 5.5-40 V input covers the full battery discharge curve from 42 V full-charge down to 30 V cut-off for 36 V battery packs, ensuring consistent brightness throughout the ride.
Recommended
Recommended Products Summary
Engineering reference data for TLD21413EPXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLD21413EP | TLD1125ELXUMA1 | TLD1211SJFUMA1 | TLD5097EPXUMA1 | BTS710336ESAXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TSDSO-14 | PG-TSDSO-14 - same | PG-SSOP-14 (different exposed-pad family) | PG-DSO-8 (different) | PG-TSDSO-14 - same | PG-TSDSO-14 - same |
| Number of Channels | 3 | 3 | 1 | 1 | 1 (DC-DC buck) | 3 (PROFET switch) |
| Topology | Linear high-side constant current | Linear high-side constant current | Linear high-side constant current | Linear high-side constant current | DC-DC buck | High-side switch |
| Dimming Interface | PWM (DIM pin) | PWM (DIM pin) | PWM | PWM | Analog/PWM | Logic-level direct drive |
| Exposed Thermal Pad | Yes | Yes | Yes | No | Yes | Yes |
Key Differentiators
- Three independent constant-current channels in one IC (vs TLD1125ELXUMA1)
- Linear high-side topology with no inductor required (vs TLD5097EPXUMA1)
- Dedicated LED-driver protection features (vs BTS710336ESAXUMA1)
Design Notes
Estimated: at 80 mA per channel and a worst-case 35 V across the driver (VS=40 V, VLED=5 V), per-channel dissipation reaches approximately 2.8 W and three-channel dissipation reaches 8.4 W. The PG-TSDSO-14 package requires substantial PCB copper pour (minimum 1 square inch on a 1 oz copper layer) connected to the exposed thermal pad to keep junction temperature below 150 C. Without a heatsink or large copper pour, sustained three-channel operation at full current will trigger thermal shutdown.
Place the TLD21413EPXUMA1 close to the LED string connectors to minimize high-current trace length and loop area. Use wide copper pours on the VS supply and OUT pins (at least 0.5 mm width per 100 mA). Connect the exposed thermal pad to a continuous ground copper pour using multiple thermal vias (at least 5-9 vias in a 0.3 mm drill array) to spread heat into inner PCB layers. Keep the DIM trace short and away from the OUT traces to avoid PWM-coupling artifacts on the LED current.
Do not float the DIM pin - leave it tied to VS or a logic-high level if PWM dimming is not used, otherwise the outputs may behave unpredictably. Ensure that the VS supply decoupling capacitor is rated for the full 40 V transient (a 47 uF / 63 V electrolytic plus a 100 nF ceramic in parallel is a reliable choice). Avoid routing OUT traces through vias when possible, since each via adds resistance and inductance that degrade current regulation. Always verify LED string forward-voltage summation is below VS to maintain proper current regulation.
Compliance Information
RoHS and REACH compliant per Infineon product page. LITIX Basic+ family parts are AEC-Q100 qualified for automotive applications. Halogen-free per Infineon green-product declaration.
