LT3597 的典型應(yīng)用是一款 60V 三重降壓型
LED 驅(qū)動(dòng)器,能夠在 100Hz 頻率下實(shí)現(xiàn) 10,000:1 數(shù)字 PWM 調(diào)光,并采用快速 NPN
電流源在每個(gè)通道中驅(qū)動(dòng)多達(dá) 10 個(gè) LED。 LED 調(diào)光也可以通過 CTRL1-3 引腳的模擬控制來實(shí)現(xiàn)。降壓開關(guān)頻率編程為 200kHz 至 1MHz
說明
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Typical Application for LT3597 is a 60V triple step-down LED driver capable of achieving 10,000:1 digital PWM dimming at 100Hz with fast NPN current sources driving up to 10 LEDs in each channel. LED dimming can also be achieved via analog control of the CTRL1-3 pin. The step-down switching frequency is programmed between 200kHz and 1MHz