[TOPONE SEMICONDUCTOR]
Overview
THX203 is a high performance current mode PWM switching power supply, Specifically designed for cost-effective AC/DC converter systems. exist Provides up to 12W connection over a wide voltage range of AC85V-265V Continuous output power, peak output power can be as high as 18W. optimized Rational circuit design combined with cost-effective Bipolar integration The circuit technology saves the overall cost of the product to the greatest extent.
Features
⦠Built-in 700V high-voltage power switch, very few peripheral devices
⦠Latch PWM, pulse-by-pulse current limit detection
⦠Low output frequency reduction function, no output power consumption can be lower than 0.25W
⦠Built-in slope and feedback compensation function
⦠Independent upper limit current detection switching power supply, real-time processing of switching power supply Source overcurrent and overload
⦠Off-cycle emitter bias output, which improves the resistance of the power tube. pressure
⦠Current limiting resistor with temperature compensation to accurately limit the flow
⦠Built-in thermal protection circuit
⦠Use the switching power tube to complete the startup, so that the power consumption of the startup resistor more than 10x reduction
⦠Low startup and operating current
⦠VCC overvoltage automatic limit
⦠VCC low voltage protection and low voltage restart function
⦠Wide voltage output power can reach 12W, narrow voltage output power can be up to 18W
Application
⦠AC/DC adapters, such as mobile phone chargers, external power boxes, etc.
⦠Internal power supply of green and energy-saving home appliances, such as induction cooker, microwave oven
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