首頁 電源管理 LED 驅動器 汽車 LED 驅動器
首頁
電源管理
LED 驅動器
汽車 LED 驅動器

LP8868U-Q1

現行

具有靈活調光選項的車用、65-V、4-A 背光升壓 LED 驅動器

立即訂購
產品規格表

LP8868U-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Topology Boost Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Iout (max) (A) 4 Switching frequency (max) (kHz) 2200 Features Cycle-by-cycle over-current protection, Fault output, Integrated Switching FET, LED Open Detection, LED Short Detection, Programable Switching Frequency, Thermal Foldback, Thermal shutdown
Number of channels 1 Topology Boost Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 65 Iout (max) (A) 4 Switching frequency (max) (kHz) 2200 Features Cycle-by-cycle over-current protection, Fault output, Integrated Switching FET, LED Open Detection, LED Short Detection, Programable Switching Frequency, Thermal Foldback, Thermal shutdown
VSON (DMT) 14 13.5 mm² 4.5 x 3
  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Integrated MOSFET for buck, buck-boost and boost topology
    • Wide input voltage: 4.5 V to 65 V
    • Integrated 5.2-A and 150-mΩ MOSFET
    • Switching frequency 100 kHz to 2.2 MHz
    • Spread spectrum for lower EMI
  • High precision power FET dimming
    • Up to 4-A output current in buck topology
    • Analog dimming (dimming ratio 256 :1)
    • Fast PWM dimming (150-ns pulse width)
    • Hybrid and flexible dimming
  • Full protection features:
    • Fault output
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Switching FET failure protection
    • Thermal shutdown
    • Configurable thermal foldback curve
  • AEC-Q100 Qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • Integrated MOSFET for buck, buck-boost and boost topology
    • Wide input voltage: 4.5 V to 65 V
    • Integrated 5.2-A and 150-mΩ MOSFET
    • Switching frequency 100 kHz to 2.2 MHz
    • Spread spectrum for lower EMI
  • High precision power FET dimming
    • Up to 4-A output current in buck topology
    • Analog dimming (dimming ratio 256 :1)
    • Fast PWM dimming (150-ns pulse width)
    • Hybrid and flexible dimming
  • Full protection features:
    • Fault output
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Switching FET failure protection
    • Thermal shutdown
    • Configurable thermal foldback curve

The LP8868-Q1 family is a non-synchronous multi-topology solution with 4.5-V to 65-V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100 kHz to 2.2 MHz with an optional spread spectrum feature for better EMI performance.

The LP8868-Q1 family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.

The LP8868-Q1 family also provides multiple systematic protections, including LED open and short, sense resistor open and short, configurable thermal foldback and thermal shutdown. Fault output will send out acknowledge signals as soon as any fault condition is detected.

The LP8868-Q1 family is a non-synchronous multi-topology solution with 4.5-V to 65-V wide input range. By integrating the low-side NMOS switch, the device is capable of driving LEDs with high power density and high efficiency. The family also supports common cathode connection and single layer PCB design. The switching frequency is configurable from 100 kHz to 2.2 MHz with an optional spread spectrum feature for better EMI performance.

The LP8868-Q1 family supports four dimming options, including analog, PWM, hybrid and flexible dimming. Each dimming method can be configured through the PWM and ADIM input pins by means of simple high and low signals. The family adopts an adaptive off-time current mode control along with smart and accurate sampling to enable inductive fast dimming (IFD) and achieve high dimming accuracy.

The LP8868-Q1 family also provides multiple systematic protections, including LED open and short, sense resistor open and short, configurable thermal foldback and thermal shutdown. Fault output will send out acknowledge signals as soon as any fault condition is detected.
filter 尋找其它 汽車 LED 驅動器
下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 1
類型 標題 日期
* Data sheet LP8868-Q1Automotive Multi-Topology LED Driver with Inductive Fast Dimming datasheet (Rev. A) PDF | HTML 2023年 8月 18日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS923655DMTREVM — 採用 VSON 封裝且適用於 65-V、4-A 升壓/降壓升壓 LED 驅動器的 TPS923655 評估模組

TPS923655DMTREVM 可協助使用者評估採用 VSON 封裝的升壓/降壓升壓 LED 驅動器 TPS923655 的功能。TPS923655 是具備 4.5-V 至 65-V 寬輸入電壓範圍、電感快速調光 (IFD) 及展頻的 4-A 非同步升壓/降壓升壓 LED 驅動器。
使用指南: PDF | HTML
TI.com 無法提供
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSON (DMT) 14 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

內含資訊：
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
內含資訊：
  • 晶圓廠位置
  • 組裝地點

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片