TLD21313EPXUMA1 - 3-Ch 60mA LED Driver, 40V LITIX Linear | Infineon
MPN: TLD21313EPXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.62 | $16.20 |
| 100 | $1.34 | $134.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.98 | $980.00 |
Drop-in alternatives for TLD21313EPXUMA1 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:
TLD21421EPXUMA1
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TLD11203EPXUMA1
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BCR401UWQ-7
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BCR402UWQ-7
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TLD21313EPXUMA1 Maximum Ratings & Electrical Characteristics
| Topology | Linear Current Source / Sink |
| Number of Outputs | 3 |
| Output Current per Channel | 60 mA (typical) |
| Input Voltage Range | 5.5 V to 40 V |
| Output Current Accuracy | 5% |
| Dimming Method | Built-in PWM |
| Operating Temperature Range | -40 C to +150 C |
| Package | PG-TSDSO-14 (TSSOP-14-EP, 150 mil) |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| Thermal Protection | Thermal Shutdown with Auto-Recovery |
| Diagnostic Features | Open-load / short-to-GND detection (per datasheet) |
| RoHS Status | Compliant |
TLD21313EPXUMA1 Pin Configuration
| Pin 1 | OUT1 β Constant-current output channel 1 |
| Pin 2 | ISET1 β Channel 1 current set resistor |
| Pin 3 | GND β Ground |
| Pin 4 | OUT2 β Constant-current output channel 2 |
| Pin 5 | ISET2 β Channel 2 current set resistor |
| Pin 6 | PWMI β PWM dimming logic input |
| Pin 7 | OUT3 β Constant-current output channel 3 |
| Pin 8 | ISET3 β Channel 3 current set resistor |
| Pin 9 | VS β Supply voltage |
| Pin 10 | VS β Supply voltage |
| Pin 11 | DIAG β Diagnostic / enable output |
| Pin 12 | NC β Not connected (per datasheet) |
| Pin 13 | NC β Not connected (per datasheet) |
| Pin 14 | NC β Not connected (per datasheet) |
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
TLD21313EPXUMA1 is suitable for 6 applications: Automotive Rear Combination Lamps, Daytime Running Lights (DRL), Turn Indicators and Brake Lights, Interior Ambient Lighting, Industrial Status and Indicator LEDs, Architectural and Signage LED Modules.
Automotive Rear Combination Lamps
The TLD21313EPXUMA1's three independent 60 mA current sinks make it a natural fit for automotive rear combination lamps where tail, brake, and turn-indicator functions share one PCB. With AEC-Q100 qualification across -40 C to +150 C and a 5.5 V to 40 V input range that absorbs 12 V and 24 V automotive load-dump transients, the driver sits directly on the vehicle harness without extra protection circuitry. Each LED string is regulated by an external sense resistor, allowing the same BOM to be reused for different lamp brightness levels simply by changing resistor values. The PG-TSDSO-14 exposed-pad package keeps junction temperature manageable even when all three channels are active at full load.
Recommended
Daytime Running Lights (DRL)
Daytime running lights demand a tightly regulated constant current to maintain photometric consistency across temperature and supply variation. The TLD21313EPXUMA1's 5% current accuracy and built-in PWM dimming input let designers program brightness profiles via a simple logic-level signal from the BCM, with no extra MCU PWM peripheral required. Because the LITIX topology is linear rather than switching, no EMI filters are needed on the input - a meaningful advantage when DRLs are mounted near AM/FM antennas or radar modules. The 40 V input ceiling also tolerates jump-start and load-dump events typical of automotive 12 V systems.
Recommended
Turn Indicators and Brake Lights
Turn indicators and brake lights require precise current regulation to meet ECE R7 and SAE photometric specifications, and the TLD21313EPXUMA1 delivers 5% accuracy across three channels that can each drive an independent LED string. The device's diagnostic pin reports open-load and short-to-ground faults, enabling compliance with automotive functional-safety requirements without an extra diagnostic IC. With PWM dimming built in, the same hardware can implement variable-intensity brake-light functions (such as emergency-stop flashing) by modulating the PWMI pin from the BCM.
Recommended
Interior Ambient Lighting
Interior ambient lighting modules typically use multiple RGB or single-color LED strings driven from a compact PCB, and the TLD21313EPXUMA1's three-channel integration simplifies the BOM. The PG-TSDSO-14 footprint is small enough to fit inside a door handle, footwell, or headliner module, while the -40 C to +150 C range comfortably covers cabin thermal extremes including direct sunlight through glass. Because LITIX linear drivers generate no audible noise or switching ripple, they do not introduce whine into the cabin audio system - a known complaint with switching LED drivers in premium vehicles.
Recommended
Industrial Status and Indicator LEDs
Outside of automotive, the TLD21313EPXUMA1's three-channel constant-current regulation is well suited to industrial control panels, machine-status towers, and HMI backlights where multiple channels must present a uniform brightness. The 5.5 V to 40 V input tolerance means the same PCB can run from 12 V, 24 V, or 36 V industrial supplies without component changes. The TSSOP-14-EP package is compatible with standard SMT assembly lines, simplifying migration of existing panel designs that already use TSSOP-14 footprints.
Recommended
Architectural and Signage LED Modules
Architectural LED signage and channel-letter illumination often require multiple constant-current LED strings driven from a 24 V supply. The TLD21313EPXUMA1's three channels can each drive one letter segment with independently programmable brightness via the PWMI pin, enabling chasing or fading effects without per-string driver ICs. The wide input range and linear topology avoid the EMI challenges of switching drivers in retail and hospitality environments where radio receivers and audio systems may be co-located with the signage.
Recommended
Recommended Products Summary
Engineering reference data for TLD21313EPXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLD21421EPXUMA1 | TLD23313EPXUMA1 | TLD11203EPXUMA1 | BCR401UWQ-7 | BCR402UWQ-7 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Diodes Incorporated | Diodes Incorporated |
| Package | PG-TSDSO-14 (TSSOP-14-EP) | PG-TSDSO-14 (TSSOP-14-EP) - same | PG-TSDSO-14 (TSSOP-14-EP) - same | PG-TSDSO-14 (TSSOP-14-EP) - same | TSSOP-14 - same | TSSOP-14 - same |
| Number of Channels | 3 | 2 | 3 | 1 | 1 | 1 |
| Per-Channel Current | 60 mA | >60 mA (higher) | [DATA_NEEDED] | [DATA_NEEDED] | 60 mA | 20 mA |
| Input Voltage Range | 5.5 V to 40 V | 5.5 V to 40 V | 5.5 V to 40 V | 5.5 V to 40 V | [DATA_NEEDED] | [DATA_NEEDED] |
| PWM Dimming | Built-in | Built-in | Built-in | Built-in | Built-in | Built-in |
| Automotive Grade (AEC-Q100) | Yes | Yes | Yes | Yes | No (industrial) | No (industrial) |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
| Topology | Linear | Linear | Linear | Linear | Linear | Linear |
Key Differentiators
- Three independent 60 mA channels in a single TSSOP-14-EP package (vs BCR401UWQ-7)
- AEC-Q100 automotive qualification with diagnostic pin (vs BCR402UWQ-7)
- Same LITIX family pinout as TLD21421EPXUMA1 (vs TLD21421EPXUMA1)
Design Notes
Estimated: at VIN=12 V driving a single 2 V white LED per channel at 60 mA, each channel dissipates roughly (12 V - 2 V) x 60 mA = 0.6 W; with all three channels active total dissipation approaches 1.8 W. The PG-TSDSO-14 package thermal pad must be tied to a copper pour of at least 1 square inch to keep the junction below the 150 C shutdown threshold. Without this copper area, the device will enter thermal shutdown under full three-channel load.
Place the ISET resistors for each channel as close as possible to the corresponding ISET pin to minimize parasitic capacitance that could disturb the current-regulation loop. Route the OUT traces with adequate copper width - at least 0.5 mm per ampere - to handle 60 mA continuous current without significant voltage drop. Keep the OUT traces away from sensitive analog or RF traces to avoid coupling.
A common pitfall is forgetting to solder the exposed thermal pad: the PG-TSDSO-14 lead frame relies on the pad for primary heat removal, and missing solder joints will cause thermal shutdown even at moderate loads. Another common mistake is leaving the PWMI pin floating - the pin must be tied to VS or GND through a defined logic level, otherwise the dimming state is undefined at power-up and the LEDs can flicker. Finally, verify headroom: VLED_total + 1 V < VIN is required for the linear regulator to maintain constant-current regulation.
Compliance Information
AEC-Q100 qualified per Infineon LITIX family documentation. RoHS compliant per DigiKey product page. REACH and conflict-minerals compliance per Infineon corporate policy.
