參數(shù)資料
型號： L6728
廠商： 意法半導(dǎo)體
英文描述： Single phase PWM controller with PowerGOOD
中文描述： 單相PWM控制器與電源良好
文件頁數(shù)： 24/32頁
文件大?。?/td> 942K
代理商： L6728
20A demo board
L6728
24/32
12.1
Board description
12.1.1
Power input (Vin)
This is the input voltage for the power conversion. The High-Side drain is connected to this
input. This voltage can range from 1.5V to 12Vbus.
If the voltage is between 4.5V and 12V it can supply also the device (through the Vcc pin)
and in this case the R16 (0Ohm) resistor must be present.
12.1.2
Output (Vout)
The output voltage is fixed at 1.25V but it can be changed by replacing the resistors R8
(sense partition lower resistor ) and R13 (feedback partition lower resistor). The over-
current-protection limit is set at 15A but it can be changed by replacing the resistors R18.
12.1.3
Signal input (Vcc)
Using the input voltage Vin to supply the controller no power is required at this input.
However the controller can be supplied separately from the power stage through the Vcc
input (4.5-12V) and, in this case, the R16 (0Ohm) resistor must be unsoldered.
12.1.4
Test points
Several test points are provided to have easy access at all important signal characterizing
the device:
–
COMP: the output of the error amplifier;
–
FB: the inverting input of the error amplifier;
–
PGOOD: signaling the regular functioning (active high);
–
VGDHS: the Bootstrap Diode Anode;
–
PHASE: Phase node;
–
LGATE: Low-Side gate pin of the device;
–
HGATE: High-Side gate pin of the device.
相關(guān)PDF資料
PDF描述
L6728TR Single phase PWM controller with PowerGOOD
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L6731BTR Transistor; Type: Amplifiers/Bipolar; VCEO (V): -25; Ic (A): -1; Pc (W): 0.8; hFE: 85 to 330; VCE (sat) (V) max: -0.5; Package: TO-92Mod
L6732 Adjustable step-down controller with synchronous rectification
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6728_0706 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Single phase PWM controller with Power Good
L6728A 功能描述:電壓模式 PWM 控制器 Hi-Freq. singl-phase PWM controller w/Po RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
L6728AH 功能描述:軟開關(guān) PWM 控制器 Sgl Output 600 KHz DFPN-10 RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
L6728AHTR 功能描述:電流型 PWM 控制器 HIGH FREQ PWM CNTRL W/PO RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
L6728ATR 功能描述:電壓模式 PWM 控制器 HIGH FREQ SINGLE PHASE PWM CNTRL RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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