ACTIVE FILTER

www.DataSheet4U.com AXC-102 ACTIVE FILTER FOR RIPPLE ATTENUATION 20A PRELIMINARY Features : ? ? ? ? ? ? ? ? ? High Efficiency. Superior Performance at Low Frequencies. Output Impedance Less Than 5mΩ. Retriggerable / Non-retriggerable Circuit Breaker. Shut Down. Sense Input Control. Status Output. Wide Operation Range 0-28V. Programmable Voltage Drop. ? Compact Size. Product Description The AXC-102 is a power filter which provide high attenuation starting at extremely low frequencies (30dB@20Hz). The device is designed for positive supply of 0 to 28 Volts and up to 20Amp load. The output voltage tracks the DC input voltage with 0.6V drop (adjustable). Full performance is kept for input ripple of up to 0.8 Volts p-p. Exceptional effort has been made to maintain low output impedance (less than 5mΩ at audio frequencies). The AXC filters are designed to meet the most stringent noise requirements in electronic equipment, laboratory power supplies, audio equipment, etc. Sense input provides a constant DC voltage drop across the AXC102. A programmable current circuit breaker shuts down the device when the current trough the module exceeds the rated current (programmable). The circuit breaker has two modes of operation: Retriggerable and Non-retriggerable mode. A CBS (Circuit Breaker Status) indicates when the device is in disconnected mode. A low level voltage (less than 1V), at SD (Shut Down) input, shuts down the output voltage and the quiescent current drops below 2.5mA. This feature fits power management, as well as battery power saving applications. Applications ? ? ? ? ? Laboratory Power Supply. Mixed Signal Power Splitter. Automotive Power Filter. Professional Audio Systems. Power Management. Fig.1 - Typical Application +2.5V (OPTION) Bias Voltage NC 1 VD 7 PIN SD 8 NC NC NC 9 4 3 VEXT RTG CBS 10 6 C2 470uF Load Vo=0V - 28V +OUT +S C1 10uF AXC102 RET 5 POUT SNS CL 2 NC Lab. P.S. -S -OUT Ultra Low Noise, Lab. Power Supply September 98 Page 1 of 6 98002-05-003-02.doc IXYS Corporation 3540 Bassett Street, Santa Clara, CA 95054 TEL:408-982-0700 FAX:408-496-0670 IXYS Semiconductor, GmbH. Edisonstr. 15 D-68623 Lampertheim, Germany TEL:+49-6206-503-0 FAX:+49-6206-503-627 www.DataSheet4U.com AXC-102 PRELIMINARY Absolute Maximum Ratings Parameter Supply Voltage Maximum Output Current SD Current SD Voltage CL Current CL Voltage VEXT Current VEXT Voltage CBS,RTG Current CBS,RTG Voltage VD Current VD Voltage SNS Current SNS Voltage Storage Temperature Operating Temperature Less than 100uSec Conditions Min 0 0 0 -2 -1 -10 -15 2.3 -10 PIN-1 POUT-1 -30 -30 Max 30 100 10 5 1 10 25 2.7 1 30 1 PIN+1 10 POUT+1 110 85 Units Vdc A mA V mA V mA V mA V mA V mA V °C °C DC Electrical Specification (-30°C ≤ TA ≤ +85°C) Parameter Operating Voltage Operation Current Quiescent Current VEXT Voltage VEXT Current Voltage Drop Conditions VEXT not connected VEXT connected to external 2.5V Normal Operation Shut Down Mode 2.50