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參數(shù)資料
| 型號(hào)： | AAT1110-S-T |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| 中文描述： | 單通道步- down PWM控制器 |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 478K |
| 代理商： | AAT1110-S-T |
Advanced Analog Technology, Inc.
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Advanced Analog Technology, Inc
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Page 5 of 17 V 1.0
AAT1110
How to Set the Time Constant for Soft-Start and Short Circuit Protection
1. Soft-Start
At power on, the AAT1110 operates in soft-start mode. The capacitor
charging at a constant current. In the soft-start mode, the voltage at SCP pin (
comparator, so that the ON duty of the OUT pin is controlled by the
SCP
C
connected to SCP pin starts
V
) is input to the PWM
. At completion of the soft-start
SCP
SCP
V
operation, the voltage at the SCP pin stays low; the input from soft-start circuit to the PWM comparator
stays high, and enters the short circuit protection waiting state.
Soft-Start Time
)
(
C
84
.
~
(sec)
t
SCP
s
μ
×
2. Short Circuit Protection
If the switching regulator output suddenly drops due to loading effect, the error amplifier output will be
fixed at
+
OM
V
and capacitor
SCP
C
will
start charging. When the voltage at the SCP pin reaches
approximately 1.26V, the output pin will set low and SCP pin will remain low.
Once the protection circuit starts operating, the circuit can be recovered by setting the power supply.
Short Circuit Detection Time
)
(
C
84
.
~
(sec)
t
SCP
scp
μ
×
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PDF描述 |
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| AAT1110-T2 | ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| AAT1110-T2-T | ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| AAT1112 | 1.5A, 1.4MHz Step-Down Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1110-T2 | 制造商:AAT 制造商全稱:AAT 功能描述:ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| AAT1110-T2-T | 制造商:AAT 制造商全稱:AAT 功能描述:ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| AAT1112 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5A, 1.4MHz Step-Down Converter |
| AAT1112_0711 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5A, 1.4MHz Step-Down Converter |
| AAT1112ITP-0.6-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER 制造商:SKYWORKS 功能描述:ANALOG IC |
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