TLD11141EPXUMA1 - 180mA 40V LITIX Basic+ LED Driver | Infineon
MPN： TLD11141EPXUMA1 ✓ 啟用中TLD11141EPXUMA1 概覽
Background Knowledge: An LED driver IC is a specialized constant-current source that regulates the current through a high-brightness LED (HB-LED), protecting it from supply transients and thermal runaway while enabling brightness control. The category hierarchy is: LED driver -> lighting driver -> power management IC -> semiconductor. High-side drivers, like the TLD1114-1EP, place the current source between the supply rail and the LED anode, leaving the LED cathode at ground, which simplifies wiring in chassis-grounded systems and avoids ground-shift issues. This makes them ideal for automotive body and tail-light applications where one terminal is chassis-referenced.
The TLD11141EPXUMA1 delivers up to 180 mA per channel, supports a wide 5.5 V to 40 V supply range (load-dump tolerant), and provides PWM dimming capability for variable brightness. Its integrated output stage minimizes external component count, while built-in protection features include over-temperature shutdown, short-circuit protection, and reverse-polarity robustness typical of Infineon's LITIX Basic+ family. The PG-TSDSO-14 exposed-pad package provides low thermal resistance, allowing reliable operation at the device's rated current.
Internally, the device uses a precision bandgap reference and a current-sense architecture that regulates output current independent of LED forward voltage variations across temperature. The high-side drive topology simplifies PCB routing and supports parallel-channel configurations via multiple TLD1114-1EP devices for higher-current LED strings or multi-channel lighting systems.
Typical applications include automotive tail lights, brake lights, daytime running lights (DRL), interior ambient lighting, status indicators, and industrial signage. The PWM dimming interface allows direct connection to a microcontroller for dynamic brightness adjustment, supporting safety features such as dynamic turn signals.
When designing with this device, observe the maximum junction temperature rating and use adequate PCB copper area on the exposed pad to maintain thermal performance. Always verify the output current setting resistor value against the LED manufacturer's recommended forward current, and add an input capacitor close to the supply pin for load-dump and EMI robustness.
This page synthesizes distributor stock data, drop-in alternative MPNs from the LITIX Basic+ family, and practical thermal/design guidance that goes beyond the manufacturer datasheet excerpts.
直接替換替代品，適用於 TLD11141EPXUMA1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TLD11141EPXUMA1 （相同外形與佔位） — 差異在於 Package, Topology, Operating Temperature Range, Dimming Method, Load-Dump Tolerance.
TLD1125ELXUMA1
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →TLD1211SJFUMA1
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →TLD23313EPXUMA1
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →TLD5097EPXUMA1
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →TLD11141EPXUMA1 最大額定值與電氣特性
| Product Type | LED Driver IC |
| 拓撲 | Linear (high-side current source) |
| 輸出數量 | 1 |
| Dimming Method | PWM (and analog via ISET) |
| Maximum Output Current per Channel | 180 mA |
| Maximum LED Current (datasheet limit) | 360 mA |
| Supply Voltage Range | 5.5 V to 40 V |
| Output Current Setting | External resistor at ISET pin |
| 封裝 | PG-TSDSO-14 (14-pin, exposed pad) |
| 安裝類型 | Surface Mount |
| 工作溫度範圍 | -40C to +150C (Tj) |
| Family | LITIX Basic+ |
| Protection Features | Over-temperature, short-circuit, reverse polarity |
| Load-Dump Tolerance | Yes (automotive rated) |
| RoHS 狀態 | Compliant |
TLD11141EPXUMA1 腳位配置
| 腳位 1 | IN — Supply voltage input (5.5 V to 40 V) |
| 腳位 2 | IN — Supply voltage input (5.5 V to 40 V) |
| 腳位 3 | IN — Supply voltage input (5.5 V to 40 V) |
| 腳位 4 | GND — Ground reference |
| 腳位 5 | ISET — Output current programming resistor |
| 腳位 6 | PWM/EN — PWM dimming / enable input |
| 腳位 7 | OUT — LED current output (high-side) |
| 腳位 8 | OUT — LED current output (high-side) |
| 腳位 9 | OUT — LED current output (high-side) |
| 腳位 10 | NC — Not connected (per datasheet) |
| 腳位 11 | NC — Not connected (per datasheet) |
| 腳位 12 | NC — Not connected (per datasheet) |
| 腳位 13 | NC — Not connected (per datasheet) |
| 腳位 14 | EPAD — Exposed thermal pad (connect to GND plane) |
典型應用
TLD11141EPXUMA1 適用於 6 應用s: Automotive Tail Light and Brake Light, Daytime Running Light (DRL), Automotive Interior Ambient Lighting, Industrial Status Indicators and Signage, Emergency Vehicle Light Bars, Architectural and Decorative LED Lighting.
Automotive Tail Light and Brake Light
The TLD11141EPXUMA1's 180 mA constant-current output and 5.5 V to 40 V supply range make it ideal for automotive tail and brake light LED strings. Its high-side drive topology simplifies chassis-grounded wiring, while PWM dimming enables dynamic turn signals. Placed between the 12 V or 24 V automotive bus and the LED string with an ISET resistor, it provides load-dump-tolerant operation and integrated thermal protection for reliable under-hood or body-panel mounting.
推薦
Daytime Running Light (DRL)
Daytime running lights require steady, regulated brightness across automotive temperature extremes. The TLD11141EPXUMA1 delivers up to 180 mA with PWM dimming for reduced-intensity DRL operation, while its -40C to +150C junction temperature range handles under-hood environments. Integrated short-circuit and over-temperature protection ensure reliability against wiring faults. The PG-TSDSO-14 exposed pad supports PCB thermal management for sealed automotive lamp assemblies.
推薦
Automotive Interior Ambient Lighting
Interior ambient lighting uses multiple low-current LED channels with smooth PWM dimming for mood effects. The TLD11141EPXUMA1's PWM dimming input accepts microcontroller signals for color-temperature and brightness control, while the 180 mA rating covers individual LED or small-string clusters. The compact PG-TSDSO-14 package fits behind dashboard trim, and multiple devices can be paralleled for multi-zone ambient lighting systems.
推薦
Industrial Status Indicators and Signage
Industrial status panels and illuminated signage benefit from the TLD11141EPXUMA1's wide supply range (5.5 V to 40 V) and constant-current regulation, which maintains consistent LED brightness despite supply fluctuations. The high-side topology simplifies wiring when the LED cathode is grounded. PWM dimming enables blinking or status-pulse patterns for fault/warning indicators on industrial control panels.
推薦
Emergency Vehicle Light Bars
Emergency vehicle light bars demand high reliability and visible-flash PWM control. The TLD11141EPXUMA1 drives high-brightness LED arrays with 180 mA per channel and supports fast PWM transitions for strobe patterns. Its 40 V maximum supply tolerates load-dump on 24 V vehicle systems, while integrated thermal shutdown protects against LED-string short circuits common in field-deployed emergency equipment.
推薦
Architectural and Decorative LED Lighting
Architectural LED strips, cove lighting, and decorative fixtures use the TLD11141EPXUMA1 for constant-current regulation with PWM dimming compatibility. The 5.5 V to 40 V supply range accommodates both 12 V and 24 V LED installations, while the exposed-pad PG-TSDSO-14 package enables compact driver boards. Designers can tune ISET resistors for specific LED binning, achieving uniform brightness across long LED runs.
推薦
推薦產品摘要
工程參考資料，適用於 TLD11141EPXUMA1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TLD1125ELXUMA1 | TLD1211SJFUMA1 | TLD23313EPXUMA1 | TLD5097EPXUMA1 |
|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | PG-TSDSO-14 | PG-TSDSO-14 (same) | PG-TSDSO-14 (same) | PG-TSDSO-14 (same) | PG-TSDSO-14 (same) |
| Topology | Linear high-side | Linear high-side | Linear high-side | Linear high-side (3-channel) | Switching DC-DC controller |
| Number of Channels | 1 | 1 | 1 | 3 | 1 (controller) |
| PWM Dimming | Yes | Yes | Yes | Yes | Yes |
| Family | LITIX Basic+ | LITIX Basic+ | LITIX Basic+ | LITIX Basic+ | LITIX Power |
主要差異化特點
- Wide 40 V supply range with load-dump tolerance (對比TLD1125ELXUMA1)
- Single-channel simplicity for compact designs (對比TLD23313EPXUMA1)
- Integrated linear regulation with PWM dimming (對比TLD5097EPXUMA1)
設計說明
Estimated: At VIN = 13.5 V, VLED = 8 V, and IOUT = 180 mA, the linear driver dissipates approximately (13.5 - 8) * 0.180 = 0.99 W. The PG-TSDSO-14 package exposed pad should be soldered to at least 1 square inch of PCB copper to maintain junction temperature within the 150C rating. For higher VIN-VLED differentials or continuous 180 mA operation, evaluate heatsinking or use the TLD1125ELXUMA1 higher-current variant with adequate copper pour.
Place the ISET programming resistor as close as possible to the ISET pin to minimize noise pickup and ensure accurate current regulation. Use a 1% tolerance resistor for tight current matching across LED bins. Add a 100 nF ceramic decoupling capacitor close to the IN pin and a larger 10 uF bulk capacitor on the supply rail for load-dump transient suppression. Connect the exposed pad to a continuous ground plane for thermal dissipation.
Do not exceed the absolute maximum LED current of 360 mA even momentarily - this can damage the output stage. Ensure PWM signal voltage levels match the device's logic input thresholds; levels below VIL may be interpreted as logic low. Verify reverse-polarity protection at the system level since the LITIX Basic+ family handles brief transients but not sustained reverse connection. Always validate thermal performance under worst-case ambient conditions.
合規資訊
AEC-Q100 qualified for automotive applications per Infineon LITIX Basic+ family qualification. RoHS and REACH compliant. Halogen-free status not explicitly stated in verified data.
