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- Commodity name: LP3712AP
- 封装: SOP7L
- 品牌: LANDP/Xinmao Micro
Product Model: LP3712AP - Input Over/Under Voltage
The LP3712AP is a highly integrated, isolated adapter and charger with a self-powered PSR control chip, featuring an extremely simple peripheral design. The LP3712AP uses a fixed primary peak current, setting the output constant current point via the transformer primary-secondary turns ratio; the output constant voltage point is set by setting the FB voltage divider resistor. To simplify system costs, the LP3712AP incorporates a built-in startup circuit, eliminating the need for external startup resistors, and uses a fixed peak current to eliminate the current limiting resistor; a self-powered approach eliminates the auxiliary winding VCC supply diode. For better output voltage regulation, the LP3712AP includes a built-in output cable compensation function, allowing adjustment of the output cable compensation value by setting the value of the FB bias resistor. The LP3712AP uses a unique input line voltage protection and an 800V high-voltage BJT driver, making it particularly suitable for use in countries with unstable power grids such as India. The LP3712AP integrates multiple protection functions, including VCC clamping/undervoltage protection, FB pin open-circuit protection, output short-circuit protection, and overtemperature protection. The LP3712AP uses a SOP7L package.
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