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參數資料
型號: TPS5100PWR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: PLASTIC, TSSOP-16
文件頁數: 4/13頁
文件大小: 209K
代理商: TPS5100PWR
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TPS5100, Triple-Channel PWM Control Circuits
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The TPS5100 is a triple PWM control circuit, primarily designed to compose the power
supply for LCD display. Each PWM channel has own error amplifier, PWM comparator,
dead-time control and output driver. The trimmed voltage reference, oscillator, undervoltage
lockout and short circuit protection are common for all channels.
This device includes two boost exclusive circuits (ch1,3) and a buck-boost exclusive circuit
(ch2). The operating frequency is set with external resister and capacitor, and dead time is
continuously adjustable form 0% to 100% duty cycle with resistive divider network. Soft
start function can be implemented by adding a capacitor to dead time divider network. Two
dead time control inputs are assigned for ch1,3 pair and ch2 individually and each dead time
control input can be used to control on/off operation. TPS5100 can operate from 2.5 V
supply voltage and ch1,3 pair and ch2 operate with reverse phase switching each other to
achieve efficient operation in low power and battery powered system.
The TPS5100 is characterized for operation from -20°C to 85°C.
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