AAT1401 Datasheet

IC型號(hào)：
AAT1401
PDF描述：
FOUR-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY
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357.53KB
PDF頁(yè)數(shù)：
21頁(yè)
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ETC

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Advanced Analog Technology, Inc.

AAT1401

Details are subject to change without notice.

FOUR-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY

FEATURES

Complete PWM Power Control Circuitry

Input Voltage Range: 3.0V to 6.5V (CH1~CH4)

Low Start-Up Voltage: 1.4V (CH4)

Separate On/Off Control for CH1~CH4

Supports Synchronous Boost/Buck Rectification

(CH1)

Supports Synchronous Boost Rectification (CH4)

Supports Boost/Buck Conversion (CH2)

Supports Boost Conversion (CH3)

Supports White LED Driver (CH3)

Totem-Pole Output

Short Circuit Protection

Wide Operating Frequency: 100 kHz to 1MHz

GENERAL DESCRIPTION

The AAT1401 provides an integrated four channel

pulse-width-modulation (PWM) solution for the power

supply of DC-DC converter; this device offers system

engineer flexibility to tailor-make the power supply

circuitry for specific applications. Each channel contains

its own error amplifier, PWM comparator, dead-time

control (DTC) and output driver. The under-voltage

protection, oscillator, short circuit protection and voltage

reference circuit are the common features for the four

channels.

In addition to a boost conversion, AAT1401 also has two

synchronous rectification systems with alternatives of a

synchronous boost or buck on channel one (CH1) and a

boost or buck conversion on channel two

(CH2)

LQFP48 and VQFN40 Package

APPLICATIONS

Camcorders

Digital Cameras

CCD Imaging Devices

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Advanced Analog Technology, Inc

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Page 1 of 21

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