TLD1310ELXUMA1 - 3-Ch 120mA LED Driver LITIX Basic | Infineon
MPN: TLD1310ELXUMA1 ✓ 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 | $0.94 | $940.00 |
TLD1310ELXUMA1 Overview
What is an LED driver IC? An LED driver IC is a specialized power management integrated circuit that regulates the current flowing through one or more LED strings, maintaining constant brightness despite variations in supply voltage, temperature, and forward voltage. LED drivers are a subcategory of PMIC (Power Management IC) within the broader semiconductor hierarchy. High-side linear drivers like the TLD1310EL place the regulator between the supply and the LED load, providing accurate current control without the EMI emissions of switching converters.
Key features of the TLD1310ELXUMA1 include three independently controlled constant-current output channels rated at up to 120 mA per channel, an operating supply voltage range compatible with 9V/12V/15V/18V/24V automotive systems, and an analog/digital dimming interface. The LITIX Basic architecture combines low dropout voltage with high current accuracy across the full automotive temperature range. The device also integrates protection features including open-load detection, short-to-ground detection, and over-temperature shutdown.
The TLD1310EL uses bipolar transistor-based output stages with a precision bandgap reference, delivering stable current regulation even with large supply variations typical of automotive cranking and load-dump transients. The exposed pad PG-SSOP-14-5 package provides a low thermal resistance path, enabling sustained operation at high ambient temperatures. Built-in diagnostic outputs enable fault reporting to a host microcontroller.
Typical applications include automotive rear combination lamps, turn indicators, daytime running lights (DRL), interior ambient lighting, and industrial signage. It is particularly suited for applications requiring AEC-Q100 qualification where multiple LED channels must be driven with precise current matching.
When designing with this device, ensure that the supply voltage provides adequate headroom above the LED string forward voltage at full current. Use a low-ESR decoupling capacitor near the supply pin to suppress voltage transients on the automotive bus. The exposed pad must be soldered to a sufficient copper pour to dissipate heat at maximum load.
Drop-in alternatives for TLD1310ELXUMA1 — 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 TLD1310ELXUMA1 (same form factor and footprint) — differing in Package, Topology, Operating Temperature Range, Dimming Method, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLD1125ELXUMA1
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View Datasheet →TLD23313EPXUMA1
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View Datasheet →TLD1211SJFUMA1
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View Datasheet →TLD5191ESXUMA1
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View Datasheet →TLD5097EPXUMA1
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View Datasheet →TLD1310ELXUMA1 Maximum Ratings & Electrical Characteristics
| Topology | Linear High-Side Current Source |
| Number of Channels | 3 |
| Output Current per Channel | 120 mA (max) |
| Total Output Current | 360 mA (sum of all channels) |
| Supply Voltage Range | 5.5 V to 40 V |
| Supported Bus Voltages | 9 V / 12 V / 15 V / 18 V / 24 V (automotive) |
| Dimming Method | Analog and Digital (PWM via EN/PWM pin) |
| Package | PG-SSOP-14-5 (14-pin SSOP with exposed pad) |
| Operating Temperature Range | -40 °C to +150 °C (junction) |
| AEC-Q100 Qualification | Yes (Automotive Grade) |
| Mounting Type | Surface Mount |
| MSL Level | 3 |
| RoHS Status | Compliant |
| Diagnostic Features | Open-load, Short-to-ground, Over-temperature |
| Product Family | LITIX Basic |
TLD1310ELXUMA1 Pin Configuration
| Pin 1 | VS — Supply voltage (5.5 V to 40 V) |
| Pin 2 | IN1 — Channel 1 enable / PWM input |
| Pin 3 | IN2 — Channel 2 enable / PWM input |
| Pin 4 | IN3 — Channel 3 enable / PWM input |
| Pin 5 | OUT1 — Channel 1 current output to LED anode |
| Pin 6 | OUT2 — Channel 2 current output to LED anode |
| Pin 7 | OUT3 — Channel 3 current output to LED anode |
| Pin 8 | IS — Current sense reference (external resistor to GND) |
| Pin 9 | DIAG — Diagnostic output (open-drain fault flag) |
| Pin 10 | EN — Global enable input (active high) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | GND — Ground |
| Pin 14 | GND — Ground (secondary) |
| Pin PAD | EP — Exposed thermal pad - solder to PCB copper pour for heat dissipation |
Typical Applications
TLD1310ELXUMA1 is suitable for 6 applications: Automotive Rear Combination Lamps, Daytime Running Lights (DRL), Turn Indicators and Signal Lamps, Interior Ambient Lighting, Industrial LED Signage and Channel Letters, Status and Indicator Panels.
Automotive Rear Combination Lamps
The TLD1310ELXUMA1 is purpose-built for automotive rear combination lamps integrating tail, brake, and turn functions in a single housing. Its three independently controlled 120 mA channels map directly to three LED strings such as tail/brake/indicator with separate dimming profiles. The 5.5-40 V supply range handles 12 V cranking transients and 24 V truck systems without external protection. AEC-Q100 qualification and integrated open-load diagnostics meet ISO 26262 functional-safety requirements for rear lighting.
Recommended
Daytime Running Lights (DRL)
DRL modules require stable current regulation across wide temperature ranges and a compact PCB footprint. The TLD1310ELXUMA1's three-channel topology supports multi-segment DRL designs with per-string PWM dimming for daytime/night modes. The 120 mA per-channel current drives 3-5 mid-power LEDs in series per string with 100% duty cycle at typical 12 V supply. Integrated thermal protection prevents shutdown during sustained high-ambient under-hood operation.
Recommended
Turn Indicators and Signal Lamps
Front and rear turn indicators demand precise current matching for uniform brightness and AEC-Q100 reliability for automotive qualification. The TLD1310ELXUMA1's per-channel current accuracy supports two or three LED segments per side with matching luminance. PWM dimming via the EN pin enables sequenced indicator animation without external FETs. The exposed-pad PG-SSOP-14-5 package handles the thermal load of 360 mA total current at high ambient temperatures.
Recommended
Interior Ambient Lighting
Premium automotive interiors use RGB or single-color ambient lighting strips driven by constant-current drivers. The TLD1310ELXUMA1's three channels map naturally to RGB color strings with independent PWM dimming for color mixing. Low dropout voltage maintains regulation at low battery states for fade-in/fade-out effects. The compact PG-SSOP-14-5 footprint enables placement in space-constrained door-panel and dashboard light modules.
Recommended
Industrial LED Signage and Channel Letters
Industrial signage channels often run from 24 V supplies with multiple LED segments per letter. The TLD1310ELXUMA1 drives three segments per letter with 120 mA per channel, matching typical high-output channel-letter LEDs. The 40 V maximum supply tolerates 24 V industrial rails with margin for transients. Linear regulation eliminates the EMI that can interfere with adjacent RF or audio equipment in retail and signage environments.
Recommended
Status and Indicator Panels
Industrial control panels and equipment status indicators need reliable constant-current LED drivers with diagnostic feedback to a host controller. The TLD1310ELXUMA1's integrated diagnostic output (open-load, short-to-ground, over-temperature) connects directly to a PLC or MCU fault input. The 5.5-40 V supply range covers both 12 V and 24 V industrial bus standards, and the linear topology provides flicker-free illumination for critical status indicators in noisy industrial environments.
Recommended
Recommended Products Summary
Engineering reference data for TLD1310ELXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLD1125ELXUMA1 | TLD23313EPXUMA1 | TLD1211SJFUMA1 | TLD5191ESXUMA1 | TLD5097EPXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-SSOP-14-5 | PG-SSOP-14-5 - same | PG-SSOP-14-5 - same | PG-SSOP-14-5 - same | PG-SSOP-14-5 - same | PG-SSOP-14-5 - same |
| Number of Channels | 3 | 1-2 (family-dependent) | 3 | 1 | 1 (DC-DC controller) | 1 (DC-DC controller) |
| Topology | Linear High-Side | Linear High-Side | Linear High-Side | Linear High-Side | DC-DC Buck/Boost | DC-DC Buck |
| Supply 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 | 4.5 V to 45 V | 4.5 V to 45 V |
| AEC-Q100 Automotive Qualified | Yes | Yes | Yes | Yes | Yes | Yes |
| Dimming | Analog + PWM | PWM | Analog + PWM | PWM | Analog + PWM | Analog + PWM |
Key Differentiators
- Three independent 120 mA channels in a single IC (vs TLD1125ELXUMA1)
- Linear topology eliminates EMI for noise-sensitive modules (vs TLD5191ESXUMA1)
- Integrated diagnostic output for functional safety (vs Discrete FET + resistor current limiting)
Design Notes
Estimated: at 12 V supply driving three channels of 120 mA through 3.0 V LEDs, the TLD1310ELXUMA1 dissipates approximately 3.24 W ((12 V - 3 V) × 0.36 A). The PG-SSOP-14-5 with exposed pad has a typical theta_JA of 35-45 C/W on a standard 4-layer JEDEC test board. With 1 square inch of top-side copper pour, junction temperature rise stays under 50 C at 25 C ambient. Always solder the exposed pad to a continuous copper pour for reliable operation.
Place the IS-pin current-sense resistor (typically 1 ohm to set 120 mA) as close as possible to the IS pin and GND pad. Keep the DIAG pull-up resistor near the IC. Use a 100 nF ceramic decoupling capacitor on VS within 5 mm of the supply pin. For multi-channel PWM dimming, route IN1/IN2/IN3 away from the OUT pins to prevent coupling. The exposed thermal pad requires thermal vias to inner copper layers for heat spreading.
Do not exceed 40 V on VS even during load-dump transients - add a TVS clamp (e.g., 36 V SMAJ series) at the supply input for automotive applications. The IS resistor tolerance directly determines current accuracy - use 1% or better parts. Open-load detection may falsely trigger during PWM off-time; account for blanking time in firmware. Ensure the supply voltage always exceeds the LED string forward voltage plus dropout margin (typically 0.5-1.0 V) or the output will drop out of regulation.
Compliance Information
RoHS and REACH compliant per Infineon product page; AEC-Q100 qualified per Arrow distributor listing and manufacturer datasheet. Halogen-free status not explicitly stated in verified data.
