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參數(shù)資料
| 型號： | AAT1210 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming |
| 中文描述： | 高功率DC / DC升壓轉換器可選動態(tài)電壓編程 |
| 文件頁數(shù)： | 11/23頁 |
| 文件大?。?/td> | 707K |
| 代理商： | AAT1210 |
AAT1210
High Power DC/DC Boost Converter
with Optional Dynamic Voltage Programming
1210.2007.02.1.2
11
Functional Description
The AAT1210 consists of a DC/DC boost (step-up)
controller, an integrated slew rate controlled input
disconnect MOSFET switch, and a MOSFET power
switch. A high voltage rectifier, power inductor,
capacitors and resistor divider network are required
to implement a DC/DC boost converter. The mini-
mum output voltage must be 0.5V above the input
voltage and the maximum output voltage is 18V.
The operating input voltage range is 2.7V to 5.5V.
Control Loop
The AAT1210 provides the benefits of current
mode control with a simple hysteretic feedback
loop. The device maintains exceptional DC regula-
tion, transient response, and cycle-by-cycle current
limit without additional compensation components.
The AAT1210 modulates the power MOSFET
switching current in response to changes in output
voltage. This allows the voltage loop to directly pro-
gram the required inductor current in response to
changes in the output load.
The switching cycle initiates when the N-channel
MOSFET is turned ON and current ramps up in the
inductor. The ON interval is terminated when the
inductor current reaches the programmed peak
current level. During the OFF interval, the input cur-
rent decays until the lower threshold, or zero induc-
tor current, is reached. The lower current is equal
to the peak current minus a preset hysteresis
threshold, which determines the inductor ripple cur-
rent. The peak current is adjusted by the controller
until the output current requirement is met.
The magnitude of the feedback error signal deter-
mines the average input current. The AAT1210
controller implements a programmed current
source connected to the output capacitor and load
resistor. There is no right-half plane zero, and loop
stability is achieved with no additional compensa-
tion components.
Functional Block Diagram
GND
SEL
FB2
FB1
EN/SET
VP
LIN
Control
Soft-Start
Timer
Output
Select
V
REF1
V
REF2
VIN
SW
PGND
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| AAT1210IRN-0.6-T1 | High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming |
| AAT1230 | 18V 100mA Step-Up Converter |
| AAT1230ITP-1-T1 | 18V 100mA Step-Up Converter |
| AAT1230ITP-T1 | 18V 100mA Step-Up Converter |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1210IRN-0.6-DB1 | 制造商:Advanced Analogic Tech 功能描述:Evaluation Board for AAT1210 High Power DC/DC Boost Converter 制造商:SKYWORKS SOLUTIONS 功能描述:Evaluation Board for AAT1210 High Power DC/DC Boost Converter |
| AAT1210IRN-0.6-T1 | 功能描述:DC/DC 開關控制器 High Power Boost Converter RoHS:否 制造商:ON Semiconductor 輸入電壓: 開關頻率: 輸出電壓: 輸出電流: 輸出端數(shù)量: 最大工作溫度: 安裝風格: 封裝 / 箱體: |
| AAT1217 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:600mA, 1.2MHz, Micropower Synchronous Step-Up Converter |
| AAT1217_08 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:600mA, 1.2MHz, Micropower Synchronous Step-Up Converter |
| AAT1217ICA-1.2-T1 | 功能描述:開關變換器、穩(wěn)壓器與控制器 1.2MHz ADJ Step Up Converter RoHS:否 制造商:Skyworks Solutions, Inc. 輸出電壓: 輸出電流: 輸出功率: 輸入電壓: 開關頻率: 工作溫度范圍: 安裝風格: 封裝 / 箱體: 封裝:Reel |
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