AN8017SA-E1

Frequency - Switching:	20kHz ~ 1MHz
Base Part Number:	AN8017SA
Supplier Device Package:	16-SSOP
Package / Case:	16-LSSOP (0.173", 4.40mm Width)
Operating Temperature:	-30°C ~ 85°C (TA)
Control Features:	Current Limit, Dead Time Control, Enable
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	77%, 78%
Series:	--
Voltage - Supply (Vcc/Vdd):	1.8 V ~ 14 V
Output Phases:	1
Number of Outputs:	2
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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AN8017SA-E1 Application Field and Working Principle

AN8017SA-E1 are a series of DC to DC switching controllers manufactured by Matsushita Electric Industrial Co., Ltd. The specific models include AN8017SA-E1, AN8017TB-E1, AN8018SA-E1, AN8018TB-E1, AN8019SA-E1, AN8019TB-E1 and AN8020SA-E1. These devices are used in computer, communications, industrial and instrumentation applications, as well as in automotive, medical and consumer electronic applications.The AN8017SA-E1 switching controllers are designed to provide high efficiency, low power consumption and low cost for DC to DC converters. They are capable of controlling both step-down (buck) and step-up (boost) converters and can be used in a variety of applications such as DC/DC regulators, DC/DC converters and motor controllers. The device integrates a PWM (pulse width modulation) control IC, a high-side and low-side driver and a voltage controller in a single package. Its output control range is wide enough to cover a variety of output voltages, including 2.5V, 3.3V, 5V and 12V. The device also features a wide input voltage range of 4.7V to 24V and can handle up to 10A output current. The working principle of the device is as follows. The circuit is composed of two parts, the PWM control IC and the power stage. The power stage consists of two MOSFETS, a low-side switch and a high-side switch. The PWM control IC is connected to an oscillator circuit, whose output frequency is adjustable via a control voltage input. The control voltage is generated by a voltage divider connected to the output terminal. A feedback loop is also provided to ensure that the output voltage follows the voltage regulation point.The high side and low side switches in the circuit can be independently enabled, enabling the device to control different switching mode DC/DC converters such as buck, boost, flyback and Cuk. The circuit also features an over current protection circuit, a deadtime control circuit and an enable/disable circuit.The AN8017SA-E1 series is an excellent choice for a wide range of DC/DC converter designs. Its wide input voltage range, adjustable switching frequency and output current handling capabilities make it an ideal choice for a number of different power converters and motor control applications.

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