FA5321P

The FA5321P is designed as a current mode switching power supply control IC. In addition to basic control circuits, this IC contains protection and accessory circuits. Use this IC to develop a high performance compact switching power circuit.

FA5321P has eleven features. (1)Drive circuit for connecting a power MOSFET. (2)Overvoltage protection (latch mode). (3)Intermittent operation under overload (automatic return). (4)Independent switching and stop period with external components. (5)Control of maximum duty cycle with an external components. (6)Peak current adjustment. (7)Soft-start. (8)Synchronous operation with an external signal. (9)Wide operating frequency range. (10)Low standby current typ 90uA. (11)16-pin package SOP. Those are all the main features.

Some absolute maximum ratings of FA5321P have been concluded into several points as follow. (1)Its maximum supply voltage would be 28V. (2)Its maximum output current would be +/-1.5A. (3)Its input voltage would be from -0.3V to 5.3V. (4)Its maximum power dissipation would be 650mW. (5)It storage temperature range would be from -40°C to 150°C. (6)Its operating temperature range would be from -30°C to 85°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of FA5321P are concluded as follow. (1)Its start-up turn-on voltage would be min 14.5V and typ 15.5V and max 17V. (2)Its operating voltage would be min 12V and max 27V. (3)Its turn-off voltage would be min 7.0V and typ 7.8V and max 8.5V. (4)Its start-up current would be min 40uA and typ 90uA and max 160uA. (5)Its operating current would be min 5mA and typ 8mA and max 16mA. (6)Its output source current would be min 100mA. (7)Its output sink current would be min 100mA. (8)Its reference voltage would be min 0.7V and typ 0.85V and max 1V. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!