AAT1108 Datasheet PDF | Advanced Analog Technology

Advanced Analog Technology AAT1108

The AAT1108 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.

Part No.	AAT1108
Datasheet	AAT1108 Download
Manufacturer	Advanced Analog Technology
Description	2-CHANNEL STEP-UP PWM CONTROLLERS
Buy	Stock & Price

FEATURES

z z z z z z z Complete PWM Power Control Circuitry Adjustable LDO Regulator Under-voltage Lockout Protection Totem pole Output Output Short Circuit Protection Dead Time Control¡G 0 to 100% Wide Operating Frequency¡G 10kHz to 800kHz

GENERAL DESCRIPTION

The AAT1108 contains two boost (step-up) exclusive circuits. 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. The maximum output currents of LDO regulator can be enlarged by connect a N_MOS FET (or NPN bipolar) as a source follow stage at out3 pin. *Spec is subject to change without notice in this document. Pin Configuration TOP VIEW CT RT INV3 INV1 FB1 DTC1 OUT1 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vref SCP OUT3 INV2 FB2 DTC2 OUT2 VDD (TSSOP-16 PACKAGE) – – ¥xÆWÃþ¤ñ¬ì§ÞªÑ¥÷¦³-½q Advanced Analog Technology, Inc.