STK426-530

The STK426-530 is designed as 2 channel high efficiency AF power amplifier with case outline of 22 pins for 100W audio use. 

STK426-530 has two features. (1) It has low audio use. (2) Built-in thermal detection circuit and switch circuit of AB class. That are all the main features.

Some STK426-530 absolute maximum ratings have been concluded into several points as follow. (1) Its maximum supply voltage would be ±77V. (2) Its thermal resistance would be 1.5°C/W. (3) Its junction temperature would be 150°C. (4) Its operating substrate temperature would be 125°C. (5) Its storage temperature would be from -30°C to +125°C. (6) Its available time for load shorte-circuit would be 0.5S with condition of Vcc=±49V, Rl=6, Po=100W, f=50Hz, V12=0V. (7) Its pin12 input voltage would be 25V.

Also some STK426-530 operating charactristics at Ta=25°C, Rg=600 have been concluded into several points as follow. (1) Its output power supply voltage would be min ±25V and max ±77V. (2) Its quiescent current would be min 20mA and max 120mA. (3) Its output power would be min 100W. (4) Its total harmonic distortion would be max 0.4% for THD1 and would be typ 0.02% for THD2. (5) Its frequency characteristics would be from 20Hz to 50KHz. (6) Its output noise voltage would be max 1mVrms. (7) Its netual voltage would be min -70mV and typ 0mV and max 70mV. (8) Its V12 for class AB operation would be min 3.5V. (9) Its V12 for high efficiency operation would be min 0V and max 0.8V.

And two notes about STK426-530. (1) All tests are measured using a constant voltage supply unless otherwise specified. (2) Available time for load short circuit and output noise voltage are measured using. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!