參數(shù)資料
型號(hào)： CS5156HGDR16
英文描述： Analog IC
中文描述： 模擬IC
文件頁(yè)數(shù)： 15/16頁(yè)
文件大?。?/td> 197K
代理商： CS5156HGDR16
CS5151H
http://onsemi.com
8
the Soft Start COMP clamp and the voltage on the Soft Start
pin (see Figures 4 and 5).
Figure 4. CS5151H Demonstration Board Startup in
Response to Increasing 12 V and 5.0 V Input Voltages.
Extended Off Time is Followed by Normal Off Time
Operation when Output Voltage Achieves Regulation to
the Error Amplifier Output.
M 250
s
Trace 3– 12 V Input (VCC1 and VCC2) (5.0 V/div.)
Trace 1– Regulator Output Voltage (1.0 V/div.)
Trace 4– 5.0 V Input (1.0 V/div.)
Trace 2– Inductor Switching Node (2.0 V/div.)
Figure 5. CS5151H Demonstration Board Startup
Waveforms
M 2.50 ms
Trace 3– COMP PIn (error amplifier output) (1.0 V/div.)
Trace 1– Regulator Output Voltage (1.0 V/div.)
Trace 4– Soft Start Pin (2.0 V/div.)
If the input voltage rises quickly, or the regulator output
is enabled externally, output voltage will increase to the
level set by the error amplifier output more rapidly, usually
within a couple of cycles (see Figure 6).
Figure 6. CS5151H Demonstration Board Enable
Startup Waveforms
M 10.0
s
Trace 1– Regulator Output Voltage (5.0 V/div.)
Trace 2– Inductor Switching Node (5.0 V/div.)
Normal Operation
During normal operation, switch off time is constant and
set by the COFF capacitor. Switch on time is adjusted by the
V2 control loop to maintain regulation. This results in
changes in regulator switching frequency, duty cycle, and
output ripple in response to changes in load and line. Output
voltage ripple will be determined by inductor ripple current
working into the ESR of the output capacitors (see Figures
7 and 8).
Figure 7. Peak–to–Peak Ripple on VOUT = 2.8 V,
IOUT = 0.5 A (Light Load)
M 1.00
s
Trace 1– Regulator Output Voltage (10 mV/div.)
Trace 2– Inductor Switching Node (5.0 V/div.)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CS-5156N16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller
CS-5157D16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller
CS-5157HD16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller
CS-5157HDR16 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller
CS5157HGD16 功能描述:DC/DC 開關(guān)控制器 5-Bit Synchronous 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
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