使用 Analog Devices 的 LT3965EFE#PBF 的參考設計

DC2218A, Demo Board for LT3965EFE/LT3797 2-String Buck LED Driver with Matrix LED Dimmer with 9V = VIN = 30V, Up to 30V LED @ 500mA (8 LEDs/String)

設計簡介

DC2218A 演示電路是一款矩陣 LED 調光器系統，采用 LT3965 8 開關矩陣 LED 調光器 IC。有 16 個 500mA LED，可通過兩個 8 開關 LED 調光器 LT3965 IC 單獨打開、關閉或進行 PWM 調光。兩串 LED 由 LT3797 三 LED 控制器 IC 的兩個降壓 LED 驅動器輸出驅動。 LT3797 的第三個通道用作 30V 預升壓穩壓器，為兩個降壓 LED 驅動器通道提供適當的輸入電壓。 DC2218A 可由 9V 至 30V 輸入驅動，并能承受高達 36V 的瞬態

說明

DC2218A, Demonstration Circuit is a matrix LED dimmer system featuring the LT3965 8-switch matrix LED dimmer IC. There are 16 500mA LEDs that can be individually turned on, off, or PWM dimmed with two 8-switch LED dimmer LT3965 ICs. The two strings of LEDs are driven with two buck LED driver outputs of the LT3797 triple LED controller IC. The third channel of the LT3797 serves as a 30V pre-boost voltage regulator to provide a proper input voltage to the two buck LED driver channels. DC2218A can be driven from a 9V to 30V input and can survive transients up to 36V

主要特色

Display Type

2x8 LED Matrix Display

參考設計下載

DC2218A - Schematic

相關文檔

24dc2218af

！注意：請使用瀏覽器自帶下載，迅雷等下載軟件可能無法下載到有效資源。

相關器件

器件	類型	描述	數據手冊
LTC6900CS5#PBF	Silicon Oscillators	Silicon Oscillator - 0.001MHz to 20MHz CMOS 5-Pin TSOT-23 T/R	點擊下載
LT3470AEDDB#PBF	DC to DC Converter and Switching Regulator Chip	Conv DC-DC 4V to 40V Step Down Single-Out 1.25V to 16V 0.2A Automotive 8-Pin DFN EP T/R	點擊下載
LTC6900CS5#PBF	Silicon Oscillators	Silicon Oscillator - 0.001MHz to 20MHz CMOS 5-Pin TSOT-23 T/R	點擊下載
LT3797EUKG#PBF	LED Drivers	LED Driver 750uA Supply Current Automotive 52-Pin QFN EP Tube	點擊下載
LT3470AEDDB#PBF	DC to DC Converter and Switching Regulator Chip	Conv DC-DC 4V to 40V Step Down Single-Out 1.25V to 16V 0.2A Automotive 8-Pin DFN EP T/R	點擊下載
LT3797EUKG#PBF	LED Drivers	LED Driver 750uA Supply Current Automotive 52-Pin QFN EP Tube	點擊下載
LT3965EFE#PBF	LED Drivers	LED Driver 8 Segment 1800uA Supply Current Automotive 28-Pin TSSOP EP Tube	點擊下載
LT3965EFE#PBF	LED Drivers	LED Driver 8 Segment 1800uA Supply Current Automotive 28-Pin TSSOP EP Tube	點擊下載