首頁 電源管理 LED 驅動器 背光 LED 驅動器
首頁
電源管理
LED 驅動器
背光 LED 驅動器

TPS92391

現行

具六個 200-mA 通道的升壓/SEPIC 高調光性能 LED 驅動器

立即訂購
產品規格表

TPS92391

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 6 Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 1 Switching frequency (max) (kHz) 2200 LED current per channel (mA) 200 Topology Boost, Current Sink Features Adjustable Switch Frequency, Analog Dimming, Analog/PWM mixed dimming, Enable/Shutdown, Fault Detection, I2C control, OVP, PWM control, Programmable output current, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 6 Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 1 Switching frequency (max) (kHz) 2200 LED current per channel (mA) 200 Topology Boost, Current Sink Features Adjustable Switch Frequency, Analog Dimming, Analog/PWM mixed dimming, Enable/Shutdown, Fault Detection, I2C control, OVP, PWM control, Programmable output current, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
VQFN (RHB) 32 25 mm² 5 x 5
  • Input voltage operating range 3 V to 48 V
  • Six high-precision current sinks
    • Up to 200-mA DC current for each current sink
    • Current matching 1% (typical)
    • Dimming ratio 32 000:1 using 152-Hz LED output PWM frequency
    • Up to 16-bit LED dimming resolution with I2C, or PWM input
    • 8 Configurable LED strings configuration
  • Auto-phase shift PWM dimming
  • 12-bit Analog dimming
  • Switching frequency 100 kHz to 2.2 MHz
  • Boost spread spectrum for reduced EMI
  • Boost sync input to set boost switching frequency from an external clock
  • Up to 48-V VOUT boost or SEPIC DC/DC controller
    • Switching frequency 100 kHz to 2.2 MHz
    • Boost spread spectrum for reduced EMI
    • Boost sync input to set boost switching frequency from an external clock
  • Extensive fault diagnostics
  • Input voltage operating range 3 V to 48 V
  • Six high-precision current sinks
    • Up to 200-mA DC current for each current sink
    • Current matching 1% (typical)
    • Dimming ratio 32 000:1 using 152-Hz LED output PWM frequency
    • Up to 16-bit LED dimming resolution with I2C, or PWM input
    • 8 Configurable LED strings configuration
  • Auto-phase shift PWM dimming
  • 12-bit Analog dimming
  • Switching frequency 100 kHz to 2.2 MHz
  • Boost spread spectrum for reduced EMI
  • Boost sync input to set boost switching frequency from an external clock
  • Up to 48-V VOUT boost or SEPIC DC/DC controller
    • Switching frequency 100 kHz to 2.2 MHz
    • Boost spread spectrum for reduced EMI
    • Boost sync input to set boost switching frequency from an external clock
  • Extensive fault diagnostics

The TPS92391 is an automotive high-efficiency LED driver with boost controller. The Six high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the TPS92391 to avoid disturbance for AM radio band.

The TPS92391 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

The TPS92391 is an automotive high-efficiency LED driver with boost controller. The Six high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the TPS92391 to avoid disturbance for AM radio band.

The TPS92391 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.
filter 尋找其它 背光 LED 驅動器
下載 觀看有字幕稿的影片 影片

您可能會感興趣的類似產品

open-in-new 比較替代產品
引腳對引腳且具備與所比較裝置相同的功能
TPS92390 現行 具四個 200mA 通道的升壓/SEPIC 高調光性能 LED 驅動器 TPS92391 and TPS92390 are hardware compatible

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 TPS92391 Boost/SEPIC High Dimming Performance LED Driver with Six 200-mA Channels datasheet PDF | HTML 2021年 3月 11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

LP8866EVM — LP8866-Q1 6 通道車用顯示器 LED 驅動器評估模組

The LP8866EVM helps designers to evaluate the characteristics, operation, and performance of the LP8866(S)-Q1 device, a 6-channel high-efficiency LED driver for automotive display LED backlighting. The LP8866(S)-Q1 device integrates a boost or SEPIC controller and six high-precision current sinks. (...)

使用指南: PDF
View Options
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
VQFN (RHB) 32 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

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

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