onsemi NCP1566
The NCP1566 is a highly integrated dual−mode active−clamp PWM controller targeting next−generation high−density, high−performance and small to medium power level isolated dc−dc converters for use in telecom and datacom industries. It can be configured in either voltage mode control with input voltage feed−forward or peak current mode control. This controller integrates all the necessary control and protection functions to implement an isolated active clamp forward or asymmetric half−bridge converter.GENERAL FEATURES
● Support Voltage Mode Control and Peak Current Mode Control● Line Feedforward
● Adaptive Overlap time Control for Improved Efficiency
● Integrated 120−V High Voltage Startup Circuit with Self−Supply Operation
● Line Undervoltage Lockout (UVLO) with Adjustable Hysteresis
● Cycle by Cycle Peak Current Limiting
● Adjustable Over Power Protection
● Overcurrent Protection Based on Average Current
● Short Circuit Protection
● Programmable Maximum Duty Ratio Clamp
● Programmable Soft−Start
● External Over−temperature Protection Using a Thermistance
● Over Voltage Protection through a dedicated pin
● FLT/SD pin Used for Fault reporting and Shutdown Input
● Programmable Oscillator with a 1 MHz Maximum Frequency and Synchronization Capability
● 5 V/2% Voltage Reference
● Main Switch Drive Capability of −2 A / 3 A
● Active Clamp Switch Drive Capability of −2 A / 1 A
● Vcc Range: from 6.5 V to 20 V
● This is a Pb and Halogen Free Device DATA SHEET SCALE 2:1 QFN24, 4 x 4, 0.5P MT...