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AAT1106

2-CHANNEL STEP-UP PWM CONTROLLERS

Analog Technology Inc 

Advanced Analog Technology, Inc.

Preliminary and Provisional

AAT1106

2-CHANNEL STEP-UP PWM CONTROLLERS

Features

z Complete PWM Power Control Circuitry

z Under-voltage Lockout Protection

z Totem pole Output

z Output Short Circuit Protection

z Dead Time Control：0 to 100%

z Wide Operating Frequency：

10kHz to 800kHz

z Shut Down Control

z Power Good Protection

Pin Configuration

TOP VIEW

CT 1

RT 2

SHDN 3

INV1 4

FB1 5

16

Vref

15 SCP

14 PRDB

13 INV2

12 FB2

DTC1 6

11

DTC2

OUT1 7

GND 8

10 OUT2

9

VDD

(TSSOP-16 PACKAGE)

General Description

The AAT1106 series 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.

The AAT1106 contains two boost (step-up)

exclusive circuit. 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 AAT1106 series offers a simple and cost

effective solution.

*Spec is subject to change without notice in this document.

– 台灣類比科技股份有限公司 –

–

Advanced Analog Technology, Inc. –

V 0.1

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