AXC-051 ACTIVE FILTER FOR RIPPLE ATTENUATION 5A PRELIMINARY Features : •High Efficiency. •Superior Performance at Low Frequencies. •Compact Size. •Low Cost. AXC-051-R AXC-051 Ordering Information Product Description The AXC-051 is a 3-terminal power filter which provide high attenuation starting at extremely low frequencies (30dB@20Hz). The device is designed for negative supply of 18 to 75 Volts and up to 5Amp load. The output voltage tracks the DC input voltage with 0.75V drop. Full performance is kept for input ripple of up to 1.4 Volts p-p. Exceptional effort has been made to maintain low output impedance (less than 0.1 ohm at audio frequencies). The AXC filters are designed to meet the most stringent noise requirements in electronic equipment, telecommunication systems, audio equipment, etc. Applications • Ultra Low Noise Switch Mode Power Supply • Communication Systems. Top • Mixed signal View (Analog Digital). PIN 1 2 3 (3) (2) (1) Pin Description NAME Description COM Common VOUT Output Voltage VIN Input Voltage Fig.1 Fig.2 - Typical Application + 18 - 72V - C1 3 1 COM AXC051 IN OUT + C2 - Analog Load - Digital Load 2 Mixed Signal Negative Power Filter September 98 Page 1 of 4 98004-05-004-06.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 AXC-051 PRELIMINARY Absolute Maximum Ratings Parameter Conditions Min Max Units +0.5 0 -30 -30 -75 6 110 85 Vdc A °C °C Typ Max Units -72 5 Supply Voltage Maximum Output Current Storage Temperature Operating Temperature DC Electrical Specification (-30°C ≤ TA ≤ +85°C) Parameter Operating Voltage Rated Current Voltage Drop @ VIN= -48V Quiescent Current Conditions Min -18 0 ILOAD TA = +25°C =0A -30°C ≤ TA ≤ +85°C ILOAD TA = +25°C =1A -30°C ≤ TA ≤ +85°C ILOAD TA = +25°C =2A -30°C ≤ TA ≤ +85°C ILOAD TA = +25°C =5A -30°C ≤ TA ≤ +85°C -18V ≤ VIN ≤ -72V 0.79 0.38 0.42 0.52 Vdc A Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc mA Min Typ Max Units 55 9 30 35 60 15 50 40 70 0.73 0.70 0.74 0.73 0.76 0.75 0.80 AC Electrical Specification (-30°C ≤ TA ≤ +85°C) Operating Voltage -(18÷ 72)V ; Output Current ILOAD=(0÷ 5)A Parameter Insertion Loss* Output Impedance* Line Transient Attenuation* Transient Output Impedance* Conditions 20Hz ÷ 10KHz @ 50Ω 10Hz ÷ 10KHz 10KHz ÷ 250KHz Transient voltage less than 0.75V Idc=2A; ∆I=1A dB mΩ mΩ dB mΩ 30 100 110 * Tested with C1 & C2 [Fig.4] = 10uF Electrolytic Capacitor ; Maximum Input Noise Level = (1.3-0.1ILOAD[A])V Attenuation (Vout[ac]/Vripple) Test Setup Load + - IQuiescent V Vripple A R1 C1 C2 VIN V A VOUT 1 COM AXC051 3 IN OUT Vin VDROP Fig.3 September 98 LOAD I 2 V OUT V Fig.4 Page 2 of 4 98004-05-004-06.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 AXC-051 PRELIMINARY Thermal Resistance Fig5. - Load Transient Response Parameter Typ Max Units 1.0 °C/W Junction-to-Case [ RθJC ] Case-to-Sink [ RθCS ] Junction-to-Ambient [ RθJA ] 0.50 °C/W 62 °C/W General Specifications Parameter Units Weight gr. 9.0±0.5 Fig6. - Mechanical Drawing n h n h d d g g m b m b w s c w s c f R=e k f a R=e k a b c d e f g h k m n s w mm min max 4.90 5.90 2.62 2.87 10.29 10.54 1.22 1.32 1.40 1.50 0.97 1.01 4.40 5.40 13.80 14.20 3.54 3.78 5.20 6.20 21.00 22.60 2.39 2.69 18.10 18.60 September 98 inch min max 0.193 0.232 0.103 0.113 0.405 0.415 0.048 0.052 0.055 0.059 0.038 0.040 0.173 0.213 0.543 0.559 0.139 0.149 0.205 0.244 0.827 0.890 0.094 0.106 0.713 0.732 a b c d e f g h k m n s w Page 3 of 4 a mm min max 4.90 5.90 2.62 2.87 10.29 10.54 1.22 1.32 1.40 1.50 0.97 1.01 5.50 6.40 13.80 14.20 3.54 3.78 19.25 20.16 21.00 22.60 2.39 2.69 18.10 18.60 min 0.193 0.103 0.405 0.048 0.055 0.038 0.217 0.543 0.139 0.758 0.827 0.094 0.713 inch max 0.232 0.113 0.415 0.052 0.059 0.040 0.252 0.559 0.149 0.794 0.890 0.106 0.732 98004-05-004-06.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 AXC-051 PRELIMINARY Typical Applications C1=10uF Switch-Mode Power Supply 3 1 COM C2=10uF AXC051 IN OUT 2 Fig7A. - Ultra Low Noise, High Efficiency Switch-Mode Power Supply + 18 - 72V C1=10uF 3 C2=10uF 1 COM AXC051 IN OUT 2 + - Analog Load - Fig7B. - Mixed Signal Negative Power Filter September 98 Page 4 of 4 98004-05-004-06.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