AAT1106

Advanced Analog Technology, Inc. AAT1106 Preliminary and Provisional 2-CHANNEL STEP-UP PWM CONTROLLERS Features z Complete www.DataSheet4U.com z z z z z z z PWM Power Control Circuitry 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 Shut Down Control Power Good Protection 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. Pin Configuration TOP VIEW CT RT SHDN INV1 FB1 DTC1 OUT1 GND 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Vref SCP PRDB INV2 FB2 ...