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AAT1104

Advanced Analog Technology
Part Number AAT1104
Manufacturer Advanced Analog Technology
Description 2-CHANNEL SWITCHING REGULATOR CONTROLLER
Published Aug 28, 2008
Detailed Description Advanced Analog Technology, Inc. AAT1104/AAT1104A 2-CHANNEL SWITCHING REGULATOR CONTROLLER Features www.DataSheet4U.com...
Datasheet PDF File AAT1104 PDF File

AAT1104
AAT1104

Overview
Advanced Analog Technology, Inc.
AAT1104/AAT1104A 2-CHANNEL SWITCHING REGULATOR CONTROLLER Features www.
DataSheet4U.
com z Complete General Description PWM Power Control Circuitry The AAT1104/AAT1104A provides an integrated two-channel pulse-width-modulation (PWM) solution for the power supply of DC-DC system, this device offers the systems engineer the flexibility to tailor the power supply circuitry to a specific application.
Each channel contains its own error amplifier, PWM comparator, dead–time control and output driver.
The under-voltage protection, oscillator, short circuit protection and voltage reference circuit are common for the two channels.
Both channel of AAT1104/AAT1104A can be used for DC/DC converter operations including step-up, step-down, and inverting.
Dead-time control (DTC) can be set to provide 0% to 100% dead time by resistive divider network.
Soft start can be implemented by paralleling the DTC resistor with a capacitor.
Two dead time control inputs are assigned for Ch-1 and Ch-2 individually, and dead time control inputs can be used to control on / off operation.
With a minimum number of external components, the AAT1104/AAT1104A offers a simple and cost effective solution.
*Spec is subject to change without notice in this document.
z z z z z z z z Precision Reference¡G 2.
505V±1% (25 oC) Under-voltage Lockout Protection Open Drain Output Output Short Circuit Protection Low Dissipation Current¡G 1.
6mA Dead Time Control¡G 0 to 100% Wide Operating Frequency¡G 10kHz to 800kHz VDD range¡G 4.
0V to 6.
5V Pin Configuration TOP VIEW CT RT NON1 INV1 FB1 DTC1 OUT1 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vref SCP NON2 INV2 FB2 DTC2 OUT2 VDD (TSSOP-16 PACKAGE) – x ¥ ÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q – Advanced Analog Technology, Inc.
V 1.
0 Advanced Analog Technology, Inc.
AAT1104/AAT1104A Pin Description Pin # 1 2 www.
DataSheet4U.
com Name CT RT NON1 INV1 FB1 DTC1 OUT1 GND VDD OUT2 DTC2 FB2 INV2 NON2 SCP Vref I/O I External timing capacitance I External ti...


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