參數(shù)資料
型號(hào)： L6731BTR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝： HTSSOP-16
文件頁(yè)數(shù)： 11/24頁(yè)
文件大?。?/td> 439K
代理商： L6731BTR
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Product(s)
L6731B
Application details
19/24
6.3
Input capacitors
The input capacitors have to sustain the RMS current flowing through them, that is:
Where D is the duty cycle. The equation reaches its maximum value, IOUT /2 with D = 0.5. The
losses in worst case are:
6.4
Compensation network
The loop is based on a voltage mode control (Figure 18.). The output voltage is regulated to the
internal/external reference voltage and scaled by the external resistor divider. The error
amplifier output VCOMP is then compared with the oscillator triangular wave to provide a pulse-
width modulated (PWM) with an amplitude of VIN at the PHASE node. This waveform is filtered
by the output filter. The modulator transfer function is the small signal transfer function of VOUT/
VCOMP. This function has a double pole at frequency FLC depending on the L-COUT resonance
and a zero at FESR depending on the output capacitor's ESR. The DC Gain of the modulator is
simply the input voltage VIN divided by the peak-to-peak oscillator voltage: VOSC.
Figure 11. Compensation Network
)
1
(
D
Iout
Irms
=
2
)
5
.
0
(
Iout
ESR
P
=
相關(guān)PDF資料
PDF描述
L6731B 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6731D 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L9230-DIE1 STEPPER MOTOR CONTROLLER, UUC
L9230 STEPPER MOTOR CONTROLLER, PDSO20
LA5680T SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQFP48
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6731D 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6731DTR 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6732 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6732_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6732_0906 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
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