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KA388XD Fiches technique(PDF) 1 Page - Fairchild Semiconductor |
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KA388XD Fiches technique(HTML) 1 Page - Fairchild Semiconductor |
1 / 5 page KA3882/3/4/5 SMPS CONTROLLER CURRENT MODE PWM CONTROLLER The KA3882/3/4/5 are fixed PWM controller for Off-Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totempole output for driving a POWER MOSFET. Also KA 3882/3/4/5 provide low start up current below 0.3mA and short shutdown delay time typ. 100ns. The KA3882 and KA3884 have UVLO threshold of 1 6V(on) and 8 SOP 10V(off). The KA3883 and KA3885 are 8.4V(on) and 7.6V(off). The KA3882 and KA3883 can operate within 100% duty cycle. The KA3884 and KA3885 within 50% by using T Flip-Flop. FEATURES • Low Start Current 0.2mA (typ) • Operating Range Up To 500KHz • Cycle by Cycle Current Limiting ORDERING INFORMATION • Under Voltage Lock Out With Hysteresis • Short Shutdown Delay Time: typ.100ns • High Current Totempole Output • Output Swing Limiting: 22V BLOCK DIAGRAM Device Package Operating Temperature KA388X 8 DIP 0 ~ + 85 Î KA388XD 8 SOP 0 ~ + 85 Î 8 DIP ©1999 Fairchild Semiconductor Corporation Rev. B |
Numéro de pièce similaire - KA388XD |
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Description similaire - KA388XD |
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