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MengziSP6506FC

Application solutions for 5V output

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MengziWuxi Silicon Power Microelectronics

MengziIntegrated circuit management chip

Product Description

The SP6506FC is a secondary synchronous rectifier chip used in isolated flyback power supply systems. It simulates the operation of a secondary Schottky rectifier diode and reduces losses with extremely low on-resistance. The SP6505FL can operate in discontinuous conduction mode (DCM) and quasi-resonant mode (QR). Advanced blanking technology ensures stable and reliable operation of the chip in various operating modes.

The SP6506FC detects the voltage drop across the on-resistance (Rds-on) of the built-in MOSFET to control the switching of the MOSFET. It features simple external components and is suitable for 5V output applications.

 

Features

 

● Built-in 20mΩ/60V power NMOS transistor

● Extremely low quiescent current

● Maximum operating frequency up to 70kHz

● Driver pin impedance pull-down resistor 1.2Ω, pull-up resistor 3.0Ω

● 50ns turn-off delay time

● VCC overvoltage protection

● Cycle-by-cycle minimum on-time detection prevents mis-triggering

● Operates in discontinuous conduction mode (DCM) and quasi-resonant mode (QR)

● SOP-8 lead-free package

 

Applications

● AC/DC power adapters

● Battery chargers

● Digital camera chargers