參數(shù)資料
型號(hào): TPS54386PWP
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 穩(wěn)壓器
英文描述: 7 A DUAL SWITCHING CONTROLLER, 750 kHz SWITCHING FREQ-MAX, PDSO14
封裝: GREEN, PLASTIC, HTSSOP-14
文件頁(yè)數(shù): 2/58頁(yè)
文件大?。?/td> 1773K
代理商: TPS54386PWP
www.ti.com
SLUS774B – AUGUST 2007 – REVISED OCTOBER 2007
TERMINAL FUNCTIONS (continued)
TERMINAL
I/O
DESCRIPTION
NAME
NO.
This pin configures the output startup mode. If the SEQ pin is connected to BP, then when Output 2 is
enabled, Output 1 is allowed to start after Output 2 has reached regulation; that is, sequential startup
where Output 1 is slave to Output 2. If EN2 is allowed to go high after the outputs have been operating,
then both outputs are disabled immediately, and the output voltages decay according to the load that is
present. For this sequence configuration, tie EN1 to ground.
If the SEQ pin is connected to GND, then when Output 1 is enabled, Output 2 is allowed to start after
Output 1 has reached regulation; that is, sequential startup where Output 2 is slave to Output 1. If EN1
is allowed to go high after the outputs have been operating, then both outputs are disabled immediately,
SEQ
10
I
and the output voltages decay according to the load that is present. For this sequence configuration, tie
EN2 to ground.
If left floating, Output 1 and Output 2 start ratio-metrically when both outputs are enabled at the same
time. They will soft start at a rate determined by their final output voltage and enter regulation at the
same time. If the EN1 and EN2 pins are allowed to operate independently, then the two outputs also
operate independently
NOTE: An internal two resistor (150-k
each) divider connects BP to SEQ and to GND. See the
Source (switching) output for Output 1 PWM. A snubber is recommended to reduce ringing on this
SW1
3
O
node. See SW Node Ringing for further information.
Source (switching) output for Output 2 PWM. A snubber is recommended to reduce ringing on this
SW2
12
O
node. See SW Node Ringing for further information.
Thermal Pad
-
This pad must be tied externally to a ground plane and the GND pin.
10
Copyright 2007, Texas Instruments Incorporated
Product Folder Link(s): TPS54383 TPS54386
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54386PWP 制造商:Texas Instruments 功能描述:DC/DC Controller
TPS54386PWPG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3A Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54386PWPR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 DC/DC Controller RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54386PWPRG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 3A Non-Synch Buck Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54386PWPRQ1 制造商:TI 功能描述:DC/DC Controller