TLD5097EPXUMA1 - 45V Multi-Topology LED DC-DC Controller | Infineon
MPN： TLD5097EPXUMA1 ✓ 啟用中TLD5097EPXUMA1 概覽
An LED driver controller is a current-regulating power management IC that drives an external MOSFET switch to deliver precisely controlled current to an LED string. It sits in the broader hierarchy of power management ICs, providing constant-current regulation that overcomes LED forward-voltage variation due to temperature and binning. Unlike fixed-mode regulators, the TLD5097EPXUMA1's adjustable topology enables both step-up (Boost) and step-down (Buck) operation from a single part.
Key features include analog and PWM dimming inputs, integrated protection (over-current, over-voltage, over-temperature, short-circuit, open-LED detection), and 3.3% current tolerance. The 500 kHz maximum switching frequency allows small external inductors and capacitors, while the exposed thermal pad supports up to 1.5 W dissipation without a dedicated heatsink.
The device uses a peak-current-mode control architecture with slope compensation, providing cycle-by-cycle current limiting and inherent input-voltage feed-forward. The wide 4.5-45V input range makes it suitable for automotive 12V/24V bus systems, industrial 24V supplies, and high-voltage LED strings. The LITIX Power family designation indicates compliance with Infineon's automotive-grade LED driver portfolio.
Typical applications include automotive daytime running lights (DRL), front and rear lighting, industrial LED panel backlighting, signage, architectural lighting, and emergency lighting. The multi-topology flexibility allows one part number to serve multiple product variants.
When designing with this part, pay attention to the gate-drive output current of 90 mA, which limits switching MOSFET selection to logic-level parts with low total gate charge. Use 1% tolerance sense resistors for accurate LED current regulation across temperature.
This page synthesizes distributor pricing, drop-in same-family alternatives (TLD5097EL, TLD21313EPXUMA1), and practical design notes not aggregated in the manufacturer datasheet.
直接替換替代品，適用於 TLD5097EPXUMA1 — 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： TLD5097EPXUMA1 （相同外形與佔位） — 差異在於 Package, Topology, Dimming Method, Operating Temperature Range, Output Current per Channel.
TLD5097EL
✅ 直接替換📋 參考替代品（不在目錄中）
TLD21313EPXUMA1
✅ 直接替換聯絡詢價
查看資料表 →TLD1125ELXUMA1
✅ 直接替換聯絡詢價
查看資料表 →ILD8150EXUMA1
✅ 直接替換聯絡詢價
查看資料表 →TLD1211SJFUMA1
✅ 直接替換聯絡詢價
查看資料表 →TLD5097EPXUMA1 最大額定值與電氣特性
| Topology Support | Boost, Buck, Buck-Boost, SEPIC, Flyback |
| 輸入電壓範圍 | 4.5 V to 45 V |
| Switching Frequency Range | 100 kHz to 500 kHz |
| Gate Drive Output Current | 90 mA |
| 輸出數量 | 1 |
| Dimming Method | Analog and PWM |
| LED Current Tolerance | 3.3% |
| 工作溫度範圍 | -40 C to +150 C |
| 封裝 | PG-TSDSO-14 (14-TSSOP with exposed pad) |
| 安裝類型 | Surface Mount |
| Internal Switch | No (external MOSFET driver) |
| Short Circuit Protection | Yes |
| Open LED Detection | Yes |
| Over-Temperature Protection | Yes |
| RoHS 狀態 | Compliant |
TLD5097EPXUMA1 腳位配置
| 腳位 1 | SGND — Sense ground for current measurement |
| 腳位 2 | VSUP — Supply voltage input |
| 腳位 3 | EN — Enable input (active high) |
| 腳位 4 | PWMI — PWM dimming input |
| 腳位 5 | INNI — Current sense amplifier negative input |
| 腳位 6 | INPO — Current sense amplifier positive input |
| 腳位 7 | RT — Timing resistor for switching frequency setting |
| 腳位 8 | GND — Ground |
| 腳位 9 | VCC — Internal 5V regulator output (decouple with capacitor) |
| 腳位 10 | GATE — Gate drive output for external MOSFET |
| 腳位 11 | STSYNC — Status / synchronization output |
| 腳位 12 | VFB — Voltage feedback input |
| 腳位 13 | VREF — Reference voltage output |
| 腳位 14 | EP — Exposed thermal pad (connect to GND) |
典型應用
TLD5097EPXUMA1 適用於 6 應用s: Automotive Daytime Running Lights (DRL), Automotive Headlight LED Driver, Industrial LED Panel Backlighting, Architectural and Commercial Lighting, Emergency and Safety Lighting, Display Backlight for Automotive Infotainment.
Automotive Daytime Running Lights (DRL)
The TLD5097EPXUMA1 suits automotive DRL applications where 4.5-45 V input tolerates 12 V and 24 V vehicle buses including load-dump transients. Its Boost topology drives high-brightness LED strings with forward voltages above the bus voltage, while 90 mA gate-drive current switches external MOSFETs at up to 500 kHz for compact magnetics. The -40 C to +150 C operating range covers under-hood thermal environments, and integrated open-LED detection protects against string failures. Pair with an external logic-level N-MOSFET (e.g., IPD50N04S4L08ATMA1) sized for the LED string current.
推薦
Automotive Headlight LED Driver
For automotive headlight high-beam and low-beam LED matrices, the TLD5097EPXUMA1's multi-topology capability supports Boost, Buck-Boost, and SEPIC configurations to handle varying LED string voltages across temperature. The 500 kHz switching frequency enables small inductors that fit within headlamp housing constraints. Analog and PWM dimming inputs interface directly with body control modules for adaptive driving beam (ADB) functions. Integrated short-circuit and over-temperature protection meet automotive functional safety requirements. The 90 mA gate drive can switch multiple parallel MOSFETs for high-current headlamp LEDs above 1 A.
推薦
Industrial LED Panel Backlighting
The TLD5097EPXUMA1 drives LED backlight strings in industrial HMI panels and signage where 24 V DC bus is standard. Its Buck topology efficiently steps down from 24 V to typical LED forward voltages of 12-20 V with minimal power dissipation. The 3.3% current tolerance ensures uniform backlight brightness across the panel, and the wide input range accommodates industrial supply variations. PWM dimming at up to several kHz supports brightness control without audible flicker. The exposed thermal pad allows sustained operation at the panel's elevated ambient temperature inside sealed enclosures.
推薦
Architectural and Commercial Lighting
For architectural LED strips and commercial downlights, the TLD5097EPXUMA1 supports SEPIC and Flyback topologies that handle non-grounded LED loads and wide input ranges from 12 V to 36 V drivers. The 4.5-45 V input accommodates universal AC-DC adapter outputs with substantial margin. Analog dimming accepts 0-10 V control signals common in commercial lighting installations. The 500 kHz switching enables slim driver housings that fit inside junction boxes. Multi-topology flexibility allows one part number to serve varied product lines from a single BOM.
推薦
Emergency and Safety Lighting
Emergency lighting systems require battery backup operation where the TLD5097EPXUMA1's 4.5 V minimum input works directly from a single Li-ion cell or 6 V lead-acid battery. The Boost topology steps up battery voltage to drive high-voltage LED strings for emergency exit signs and path-of-egress lighting. Integrated protections prevent damage during battery voltage droop at end-of-discharge. The wide operating temperature range supports outdoor and unheated installation environments. PWM dimming allows test-mode operation at reduced brightness to extend battery runtime during power outages.
推薦
Display Backlight for Automotive Infotainment
Automotive center-stack displays and instrument clusters use the TLD5097EPXUMA1 as a Boost controller for LED backlight strings driven from 12 V vehicle power. The 90 mA gate drive accommodates MOSFETs that switch high currents required for high-nit display brightness in sunlight-readable applications. PWM dimming frequency above 200 Hz avoids beat frequencies with TFT refresh rates. The exposed-pad PG-TSDSO-14 package supports continuous operation at elevated infotainment-cabin temperatures. Compact external inductors at 500 kHz switching enable slim display module designs.
推薦
推薦產品摘要
工程參考資料，適用於 TLD5097EPXUMA1 — 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 | TLD5097EL | TLD21313EPXUMA1 | TLD1125ELXUMA1 | ILD8150EXUMA1 | TLD1211SJFUMA1 |
|---|---|---|---|---|---|---|
| Package | PG-TSDSO-14 | PG-TSDSO-14 - same | PG-TSDSO-14 - same | PG-TSDSO-14 - same | PG-TSDSO-14 - same | PG-TSDSO-14 - same |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Input Voltage Range | 4.5 V to 45 V | 4.5 V to 45 V | 5 V to 40 V | 5 V to 40 V | 8 V to 80 V | 5 V to 40 V |
| Topology | DC-DC Controller (Multi-topology) | DC-DC Controller (Multi-topology) | 3-channel Linear Driver | 1-channel Linear Driver | 1-channel Linear Driver | 1-channel Linear Driver |
| Switching Frequency | 100 kHz to 500 kHz | 100 kHz to 500 kHz | N/A (linear) | N/A (linear) | N/A (linear) | N/A (linear) |
| Gate Drive Current | 90 mA | 90 mA | N/A | N/A | N/A | N/A |
| Dimming Method | Analog + PWM | Analog + PWM | PWM | PWM | Analog + PWM | PWM |
| Operating Temperature | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +150 C | -40 C to +125 C | -40 C to +150 C |
主要差異化特點
- Multi-topology flexibility in a single part (對比TLD21313EPXUMA1)
- Higher input voltage range (對比TLD1125ELXUMA1)
- External MOSFET for high-current capability (對比ILD8150EXUMA1)
設計說明
Place the VCC decoupling capacitor (typically 100 nF ceramic) as close as possible to pin 9 with a short ground return to the EPAD. The exposed pad (pin 14) must be soldered to a sufficient copper area (recommended >= 25 mm^2) on the top layer to provide thermal dissipation. Use at least 4 thermal vias connecting the EPAD to inner/bottom ground planes for thermal performance. Keep the high-current switching loop (input capacitor, MOSFET drain-source, sense resistor, ground return) as small as physically possible to minimize EMI.
Estimated: At 500 kHz switching into a MOSFET with 50 nC total gate charge, the gate-drive power dissipation equals 90 mA x 5 V x 0.5 (typical switching activity) = ~225 mW. Add quiescent current draw (~5 mA typical at VSUP=12V) of approximately 60 mW. Total internal dissipation stays below 300 mW in typical applications, well within the PG-TSDSO-14 thermal capability when the EPAD is properly soldered. For ambient temperatures above 100 C, verify junction temperature against the Infineon thermal metrics in the datasheet.
Do not connect the SGND pin (pin 1) and power GND (pin 8) at the IC package - route them as separate traces that join only at the sense resistor ground terminal. Connecting them under the package creates ground bounce that corrupts current-sense measurements and causes LED current instability. Also, ensure the RT resistor (pin 7) tolerance is 1% or better to maintain switching frequency accuracy, which directly affects LED current regulation. Finally, do not exceed 45 V on VSUP even transiently - add a TVS clamp for automotive load-dump protection if the bus sees inductive spikes.
合規資訊
Part of Infineon LITIX Power family designed for automotive LED applications. RoHS and REACH compliant per Infineon product page. AEC-Q100 qualification typical for LITIX Power family - confirm specific ordering code.
