TLE4241GMXUMA1 - 60mA Adjustable LED Driver, 45V | Infineon
MPN: TLE4241GMXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.55 | $1.55 |
| 10 | $1.4 | $14.00 |
| 100 | $1.21 | $121.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.92 | $920.00 |
TLE4241GMXUMA1 Overview
An LED driver IC is a semiconductor device that regulates the current flowing through one or more LEDs to maintain constant luminance, protect the LED from supply transients, and enable brightness control. As a linear current source (a member of the LITIX Linear family), the TLE4241GMXUMA1 occupies a defined role in the power-management hierarchy: constant-current driver -> LED driver -> power management IC -> semiconductor. Compared with switching LED drivers, linear constant-current sources add no switching noise and require no inductors, which simplifies EMC compliance for automotive lighting.
Key features include a wide 5.5 V to 45 V supply operating range, ±2% typical output-current accuracy, an integrated power stage with thermal shutdown, and open-load, short-circuit, and overtemperature protection. The PWM input supports direct microcontroller dimming, while the SET pin allows simple resistor-based current programming. The PG-DSO-8 surface-mount package provides a low thermal-resistance path suitable for continuous 60 mA operation.
Typical applications include automotive interior and exterior lighting, dashboard illumination, signal lamps, and status indicators. The 45 V load-dump rating and AEC-Q100 qualification make the part especially well suited to 12 V and 24 V automotive electrical systems where voltage transients are common.
When designing with this device, place the SET resistor close to the SET pin to minimize leakage paths and ensure adequate PCB copper area for thermal dissipation; thermal shutdown engages at approximately 150 °C junction temperature. Compared with discrete resistor-bias LED strings, the TLE4241GMXUMA1 maintains constant brightness across the full supply and temperature range, which simplifies optical calibration.
Drop-in alternatives for TLE4241GMXUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLE4242GM
✅ Drop-In📋 Reference alternative (not in catalog)
TLE4243GM
✅ Drop-In📋 Reference alternative (not in catalog)
TLE4241GMXUMA1 Maximum Ratings & Electrical Characteristics
| Function | Linear LED Driver / Adjustable Constant-Current Source |
| Number of Outputs | 1 |
| Output Current (Max) | 60 mA |
| Dimming Method | PWM |
| Supply Voltage Range | 5.5 V to 45 V |
| Load-Dump Protection | 45 V |
| Output Current Adjustment | External SET resistor, PWM, analog reference |
| Operating Temperature Range | -40 °C to +150 °C |
| Package | PG-DSO-8 |
| Mounting Type | Surface Mount |
| Topology | Linear constant-current source |
| Protection Features | Open-load, short-circuit, overtemperature |
| Automotive Qualification | AEC-Q100 (Infineon LITIX Linear family) |
| RoHS Status | Compliant |
TLE4241GMXUMA1 Pin Configuration
| Pin 1 | GND — Ground |
| Pin 2 | IN — Supply voltage input |
| Pin 3 | OUT — Regulated output current to LED load |
| Pin 4 | SET — Current programming resistor |
| Pin 5 | PWM — PWM dimming input |
| Pin 6 | REF — Analog reference input |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
Typical Applications
TLE4241GMXUMA1 is suitable for 6 applications: Automotive Tail Lamp LED Driver, Dashboard Backlight Illumination, Automotive Interior Status Indicators, Industrial 24 V Signaling Lamps, Side-Marker and Position Lamps, Emergency Vehicle Light Bars.
Automotive Tail Lamp LED Driver
The TLE4241GMXUMA1's 45 V load-dump rating and AEC-Q100 qualification make it ideal for automotive tail-lamp LED strings running directly off the 12 V battery rail. The device regulates 60 mA through red or white LED chains regardless of supply transients, while the PG-DSO-8 package's low thermal resistance keeps junction temperature in check at -40 °C to +150 °C. Compared with discrete resistor biasing, the TLE4241GMXUMA1 maintains constant luminance across cold-crank and load-dump events. The integrated open-load and short-circuit detection flags a failed LED to the body-control module, improving diagnostic coverage for ISO 26262 lighting functions.
Recommended
Dashboard Backlight Illumination
Dashboard backlights require stable, flicker-free current across temperature to maintain readable displays. The TLE4241GMXUMA1's PWM dimming input allows direct microcontroller control of brightness without external MOSFETs, and the linear topology introduces zero switching noise that could couple into sensitive analog instrument-cluster signals. The 60 mA maximum output drives parallel LED chains for LCD backlights or pointer illumination, while the PG-DSO-8 footprint fits behind the instrument cluster without consuming valuable PCB area. The device's ±2% current accuracy keeps brightness uniform across multiple driver ICs in the same dashboard.
Recommended
Automotive Interior Status Indicators
Status indicators such as door-open, seatbelt, and HVAC-mode LEDs draw 10–30 mA and must operate reliably across -40 °C to +85 °C cabin extremes. The TLE4241GMXUMA1's wide operating range, integrated thermal shutdown, and 60 mA headroom let a single part drive multiple indicator LEDs in parallel without precision binning. Its small PG-DSO-8 footprint fits into the door-module PCB next to other Infineon LITIX devices, simplifying BOM consolidation. The PWM input also enables smooth fade-in/fade-out animations for premium trim levels without additional driver circuitry.
Recommended
Industrial 24 V Signaling Lamps
Industrial 24 V signaling lamps must tolerate wide supply tolerances common on long cable harnesses with inductive kickback. The TLE4241GMXUMA1's 45 V absolute-maximum rating provides margin against 24 V industrial bus transients, and its linear constant-current regulation eliminates the inductor-based EMI that switching drivers would generate near sensitive PLC analog inputs. The 60 mA output comfortably drives 2–3 high-brightness LEDs in series or parallel, while the AEC-Q100 qualification offers extra margin in harsh industrial environments. Open-load detection also flags a burned-out lamp to the controller without additional wiring.
Recommended
Side-Marker and Position Lamps
Side-marker and position lamps require ultra-low-power constant-current drivers to meet ECE R7 and FMVSS 108 photometric requirements. The TLE4241GMXUMA1's 60 mA maximum and adjustable SET-pin resistor let designers fine-tune brightness to within ±2% across the full automotive temperature range. The 45 V load-dump tolerance ensures lamp survival during jump-start events, while integrated short-circuit protection prevents module damage if a wiring fault occurs. The PG-DSO-8 footprint's thermal performance supports continuous operation at 60 mA without external heatsinking.
Recommended
Emergency Vehicle Light Bars
Emergency-vehicle light bars run 24 V systems with severe electrical noise from radios, sirens, and alternators. The TLE4241GMXUMA1's 45 V load-dump rating rejects alternator transients, while the linear constant-current regulation eliminates switching EMI that could interfere with onboard RF communications. The PWM dimming input enables synchronized flash patterns across multiple LED channels. The PG-DSO-8 package's thermal performance supports 60 mA continuous operation at elevated ambient temperatures inside sealed light-bar housings.
Recommended
Recommended Products Summary
Engineering reference data for TLE4241GMXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLE4242GM | TLE4243GM | BCR401UW6-7 |
|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Diodes Incorporated |
| Package | PG-DSO-8 | PG-DSO-8 | PG-DSO-8 | SOT-26 (TSOT-26) |
| Function | Linear LED Driver / Constant-Current Source | Linear LED Driver | Linear LED Driver | Linear LED Driver |
Key Differentiators
- 45 V load-dump protection on a 60 mA linear LED driver (vs TLE4242GM)
- Three independent current-programming means in one IC (vs BCR401UW6-7)
- PG-DSO-8 package with exposed thermal pad (vs TLE4243GM)
Design Notes
Estimated: At V_IN = 13.5 V driving a single LED with V_F = 2.0 V at 60 mA, the TLE4241GMXUMA1 dissipates (13.5 - 2.0) × 0.060 = 0.69 W. With PG-DSO-8 theta_JA of approximately 110 K/W on a 1 oz 1-layer board, junction temperature rise is roughly 76 K above ambient - acceptable at 25 °C ambient but marginal at 85 °C. Add a copper pour or thermal via array under the exposed pad to reduce theta_JA to 60-70 K/W for design margin.
Place the SET resistor as close as possible to the SET pin to minimize leakage paths and noise pickup. Keep the high-current OUT trace short and wide to reduce voltage drop and EMI. Provide a solid ground plane under the device to aid thermal dissipation. If multiple TLE4241GMXUMA1 devices are used on the same PCB, star-ground their GND pins to avoid current-return coupling that could affect SET-pin accuracy.
Do not exceed the absolute maximum supply of 45 V - even brief load-dump transients above this rating will damage the device. Ensure the SET resistor is a 1% or better tolerance part to maintain output-current accuracy. When wiring the PWM pin low for shutdown, do not leave it floating - a floating PWM pin can cause unpredictable dimming behavior. Add a pull-down resistor if the microcontroller's PWM output is high-impedance during reset.
Compliance Information
AEC-Q100 qualified per Infineon LITIX Linear family datasheet. RoHS and REACH compliant per distributor listings. Halogen-free status not explicitly stated in retrieved web data.
