SAI01

The SAI01 is designed as one kind of surface-mount, sparate excitation switching types. Typical applications include power supplies for telecommunication equipment and onboard local power supplies.

SAI01 has seven features. (1)Surface-mount package. (2)Output current: 0.4 to 0.5A. (3)High efficiency: 75 to 89%. (4)Requires only 4 external components. (5)Phase correction and output voltage adjustment performed internally. (6)Built-in reference oscillator (60kHz). (7)Built-in overcurrent and thermal protection circuits. Those are all the main features.

Some absolute maximum ratings of SAI01 have been concluded into several points as follow. (1)Its DC input voltage would be 35V. (2)Its power dissipation would be 0.75W. (3)Its junction temperature range would be +125°C. (4)Its storage temperature range would be from -40°C to 125°C. (5)Its SW terminal applied reverse voltage would be -1V. (6)Its thermal resistance (junction to case) would be 20°C/W. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of SAI01 are concluded as follow. (1)Its output voltage would be min 4.8V and typ 5.0V and max 5.2V with test conditions of Vin=20V, Io=0.3A. (2)Its efficiency would be typ 80% with test conditions of Vin=20V and Io=0.3A. (3)Its switching frequency would be typ 60kHz with test conditions of Vin=20V and Io=0.3A. (4)Its line regulation would be typ 80mV and max 100mV with test conditions of Vin=10 to 30V, Io=0.3A. (5)Its load regulation would be typ 30mV and max 40mV with test conditions of Vin=20V, Io=0.1A to 0.4A. (6)Its temperature coefficient of output voltage would be typ +/-0.5mV/°C. (7)Its ripple rejection would be typ 45dB with test conditions of f=100 to 120Hz. (8)Its overcurrent protection starting current would be min 0.55A with test conditions of Vin=10V. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!