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 Fig.1 - Typical Application +2.5V (OPTION) Bias Voltage ? ? ? ? ? Laboratory Power Supply. Mixed Signal Power Splitter. Automotive Power Filter. Professional Audio Systems. Power Management. 7 +OUT +S NC 1 VD PIN NC NC 9 4 3 VEXT RTG CBS AXC102 POUT SNS C1 10uF Lab. P.S. SD 8 NC RET 5 CL 2 NC 10 Vo=0V - 28V 6 C2 470uF Load -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 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 Conditions Less than 100uSec Min Max Units 0 0 0 -2 -1 -10 -15 2.3 POUT-1 -30 -30 30 100 10 5 1 10 25 2.7 1 30 1 PIN+1 10 POUT+1 110 85 Vdc A mA V mA V mA V mA V mA V mA V °C °C Typ Max Units 28 28 20 26 2.25 2.6 26 0.62 0.68 0.62 1 2.5 100 2.5 1 20 20 22 5 V V A mA mA V mA V V V V mA mSec V V uA uA A A -10 PIN-1 DC Electrical Specification (-30°C ≤ TA ≤ +85°C) Parameter Operating Voltage Operation Current Quiescent Current VEXT Voltage VEXT Current Voltage Drop SD OFF Position Voltage SD OFF Position Current Retriggerable Time CBS Output Voltage ON Position CBS Output Voltage Off Position CBS Output Current ON Position CBS Output Current Off Position Circuit Breaker Off Current Conditions Min VEXT not connected VEXT connected to external 2.5V 4 0 0 Normal Operation Shut Down Mode 22 2.5 10 0 0.2 0.60 0 2.50<VEXT<2.60V No Load Full Load R1* Not Connected 2 RTG Not Connected 50 1.5 0 R1* Not Connected R1*=0 20 4 * R1 See Fig.2 September 98 Page 2 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 AXC-102 PRELIMINARY AC Electrical Specification (-30°C ≤ TA ≤ +85°C) Operating Voltage 4-28V ; Output Current ILOAD=(0÷ 20)A Parameter Conditions Insertion Loss Attenuation* Output Impedance Line Transient Attenuation Transient Output Impedance 20Hz ÷ 10KHz @ 50Ω At 1Khz 10Hz-10Khz 10Hz ÷ 10KHz Transient voltage less than 0.5V R2** does not exist Idc=2A; ∆I=5A Min Typ Max Units 40 55 27 50 61 30 4 30 60 dB dB dB mΩ dB 26 6 6 mΩ *C1 = 10uF ,C2=470uF Electrolytic Capacitor ,R2 not exist; Maximum Input Noise Level = 0.8Vptp ** See Fig2. Fig.2 - Test Circuit External Bias Circuit Breaker Current Setting: I EXT I CIRCUIT BREAKER [ A] = VVROP 720 + 240R * 1[ KΩ ] ±10% 150 + 11R * 1[ KΩ ] VEXT A V R2 7 V VCBS SW 2 1 VD PIN V 9 4 3 VEXT RTG CBS POUT AXC102 SNS Vripple SD 8 C1 10uF RET 5 10 6 CL 2 C2 470uF VIN Voltage Drop Setting: VDROP[V ] = VOUT VSD V 1.2R * 2[ KΩ ] ±5% 100 + 2 R * 2[ KΩ ] I SD A V + - Vdc I CL A SW 1 VCL V V I LOAD A R1 *R1,R2 See Fig2. Fig.3 - Circuit Breaker Current Setting Fig.4 - Voltage Drop Setting 0.6 25 0.5 20 I circuit breaker[A] 0.4 Vdrop[V] 15 10 0.2 5 0 0.3 0.1 0 1 10 100 1000 1 100 1000 R2[KΩ ] R1[KΩ ] September 98 10 Page 3 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 AXC-102 PRELIMINARY Load Transient Response Fig.5B Fig.5A Thermal Resistance Parameter Junction-to-Sink [ RθJS ] Attenuation (Vout[ac]/Vripple) Typ Max Units 1.4 1.6 °C/W General Specifications Parameter Weight Units 34±2 gr. Fig.6 September 98 Page 4 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 AXC-102 PRELIMINARY Pin Description No Name Short Description 1 VD Voltage Drop 6 SNS Sense Input 2 CL Current Limit 7 PIN Positive Input 3 CBS 8 SD Shut Down 4 RTG 9 VEXT External Bias 5 RET Circuit Breaker Status Retriggerable Mode Ground 10 POUT Positive Output 28 Short Description 2 13.5 11.8 44 1 2 35 (35x26 DCB Ceramic) 48 10 45° 6 5 4 3 10.06 5.3 31.6 11 6.9 0.5 89 Name 10.13 16.8 2 1 10.87 10.87 2.54 2.54 Fig.7 16.8 4 7 No Fig.8 – Mechanical Drawing 2.54 63 Typical Applications Optional NC NC 1 9 4 3 VD VEXT RTG CBS L1 100uHy 7 PIN AXC102 POUT SNS SD 8 Car Battery C1 100uF RET 5 CL 2 NC Optional Shut Down 10 6 C2 500uF Load Fig.9A - Input Power Filter For Sensitive Vehicle Electronic Equipment September 98 Page 5 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 AXC-102 PRELIMINARY Typical Applications +2.5V (OPTION) Bias Voltage NC NC NC 1 9 4 3 VD VEXT RTG CBS 7 +OUT +S PIN POUT AXC102 SNS C1 SD 8 NC 10uF Lab. P.S. RET 5 CL 2 NC 10 Vo=0V - 28V 6 C2 470uF Load -S -OUT Fig.9B – Ultra Low Noise, High Efficiency Laboratory Switch-Mode Power Supply Digital Load Optional NC NC 1 9 4 3 VD VEXT RTG CBS +OUT 7 -S AXC102 SNS +S S.M.P.S POUT PIN SD 8 C1 10uF RET 5 CL 2 NC Optional Shut Down 10 6 C2 500uF Analog Load -OUT Fig.9C - Analog Digital Power Supply Decoupler (Sensitive Analog Load). September 98 Page 6 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