SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated SIL25C SERIES Single negative output Trim range (-4.5 Vdc to -5.5 Vdc) High power density design means reduced board space requirement Remote sense Power good output signal (open collector) Operating ambient temperature to 80 ºC with suitable derating and forced air cooling Remote ON/OFF (active high) Overtemperature protection 0 A minimum load Input undervoltage lockout Overcurrent and short-circuit protection Available RoHS compliant The SIL25C is a new high density non- The remote sense feature enables the isolated dc-dc converter. The converter SIL25C compensate for voltage drops has a wide input range (10.2 Vdc to between the converters output and the load. 13.8 Vdc) and offers a -4.5 Vdc to -5.5 Vdc With full international safety approvals output voltage range with a 25 A load. The including EN60950 and UL/cUL60950 the series offers remote ON/OFF, over- SIL25C reduces compliance costs and time temperature protection and over-current to market. protection as standard. [ 2 YEAR WARRANTY ] File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 1 SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated Absolute Maximum Ratings Characteristic Symbol Min Input voltage - continuous Vin (cont) Operating temperature Top Typ Max Units Notes and Conditions -0.3 13.8 V DC Vin(+) - Vin(-) -40 80 ºC Measured at thermal reference points, see Note 1. Higher ambient operation possible with forced air cooling. See de-rating curves Power Good pull-up voltage 15 V Storage temperature Tstorage -40 125 ºC Output current Iout 0 25 A All specifications are typical at nominal input Vin = 12V, full load under any resistive load combination at 25˚C unless otherwise stated. Input Characteristics Characteristic Symbol Min Typ Max Units Input voltage - operating Vin (oper) lin 10.2 12.0 13.8 V DC 280 400 mADC 30 40 mADC Input current - no load Input current - Quiescent Input voltage variation lin (off) dv/dt 1.0 Notes and Conditions Vin (min) - Vin (max), enabled Converter disabled V/ms Turn On/Off Characteristic Symbol Min Typ Max Units Input voltage - turn on Vin (on) 8.5 10.0 10.2 V DC Input voltage - turn off Turn on delay - enabled, then power applied Vin (off) Tdelay (power) 8.5 9.5 10.0 30 V DC msec Notes and Conditions With the Remote ON/OFF signal asserted, this is the time from when the input voltage reaches the minimum specified operating voltage until the POWER GOOD is asserted high Vin = Vin (nom), then Remote ON/OFF asserted. This is the time taken until the POWER GOOD is asserted high Turn on delay - power applied, then Remote ON/OFF asserted Tdelay (Remote ON/OFF) 20 msec Output to Power Good delay Tdelay 20 msec Output voltage in full regulation to POWER GOOD asserted high Rise time Trise msec From 10% to 90%; full resistive load, 2 x 680µF external capacitance 8 File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 2 SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated Signal Electrical Interface Characteristic - Signal Name Symbol Min At remote/control ON/OFF pin Open collector or equivalent compatible Control pin open circuit voltage Vih Typ 2.6 Max Units Notes and Conditions 4 V See Notes 2 and 3 See Application Note 148 for Remote ON/OFF details Iih = 0 µA; open circuit voltage 1 µA Current flowing into control pin when pin is pulled high (max. at Vih = 13.8V) Vin Converter guaranteed on when control pin is greater than Vih (max) High level input current Iih High level input voltage Vih Low level input voltage ViI 1.20 V Low level input current Iil (max) 1.3 mA Converter guaranteed off when control pin is less than Vil (max) ViI = 0.0 V; Max Units Notes and Conditions 2.50 Reliability and Service Life Characteristic Symbol Min Typ Mean time between failure MTBF 282,000 Hours MIL-HDBK-217F, Vin = Vin (nom); Iout = Iout (max); ambient 25ºC; ground benign environment Mean time between failure MTBF 3,000,000 Hours Telcordia SR-332 Issue 3, ground benign, temp. = 40ºC, Vin = Vin (nom), Iout = Iout (max) File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 3 www.artesyn.com SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated Other Specifications Characteristic Symbol Switching frequency Fsw Min Weight Typ Max Units Notes and Conditions 250 kHz Per phase, (2 phase) 28.3 g Safety Agency Approvals Characteristic UL/cUL 60950 File No. TBD TÜV Product Service IEC 60950 Certificate No. TBD Material Ratings Characteristic - Signal Name Notes and Conditions Flammability rating Material type UL94V-0 FR4 PCB Model Numbers Model Input Output Output Current Typical Max. Load Number Voltage Voltage (Max.) Efficiency Regulation SIL25C-12SNEG-VJ 12VDC -4.5V to -5.5V 25A 90% ±1.0% RoHS Compliance Ordering Information The ‘J’ at the end of the part number indicates that the part is Pb-free (RoHS 6/6 compliant). TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special request, please contact your local sales representative for details. File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 4 SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated SIL25C-12SNEG-VJ Input Characteristics Characteristic Symbol Input current - operating Iin Reflected ripple current Min Typ Max Units Notes and Conditions 11.6 A DC Vin = Vin (nom); Iout = Iout (max.) Iin (ripple) 60 300 mA RMS Iout = Iout (max.), measured mA pk-pk with external filter. See Application Note 148 for details Input capacitance - internal filter Cinput 18.8 µF Input capacitance - external input Cbypass 800 µF Recommended customer added capacitance SIL25C-12SNEG-VJ Electrical Characteristics - O/P Characteristic Symbol Min Typ Max Units Notes and Conditions Nominal set-point voltage Vo (nom) -4.85 -5.05 -5.25 V DC Vin = Vin (nom); Iout = Iout (NL) Worst case condition over line, load, temperature and life Line regulation ±1.0 % Iout = Vin (min) to Vin (max) Load regulation ±1.0 % Vin = Vin (nom); Iout (min) to Iout (max) 25 A DC Output current continuous Iout 0 Output current - short circuit Isc 23.9 A rms Output voltage - noise Vp-p Vrms 100 50 mV pk-pk Measurement bandwidth 20 MHz mV rms See Application Note 148 for measurement set-up details Continuous, unit auto recovers from short File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 5 www.artesyn.com SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated SIL25C-12SNEG-VJ Electrical Characteristics - O/P Characteristic Symbol Load transient response peak deviation Vdynamic Load transient response recovery External load capacitance Min Typ Max Units Notes and Conditions 75 mV Peak deviation for 50% to 75% step load, di/dt = 1A/µs Trecovery 150 µsec Settling time to within 1% of output set point voltage for 50% to 75% step load Cext 1360 µF Maximum capacitor value may vary with load conditions Units Notes and Conditions 35 A DC -5.05 V DC Vo = 90% of Vo (nom) Sense pins not connected Units Notes and Conditions SIL25C-12SNEG-VJ Protection and Control Features Characteristic Symbol Overcurrent limit inception Ioc Min Open sense voltage Typ Max SIL25C-12SNEG-VJ Efficiency Characteristic Symbol Min Typ Max Efficiency η 89.0 90.4 % Iout = 100% Iout (max), Vin = Vin (nom) Efficiency η 90.7 92.7 % Iout = 50% Iout (max), Vin = Vin (nom) File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 6 SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated SIL25C-12SNEG-VJ 94 25 20 1.0m/s 1.5m/s 2.0m/s 3.0m/s 15 10 92 90 Low Line Nom Line High Line 88 86 84 82 80 5 0 7 EFFICIENCY (%) OUTPUT CURRENT (A) 30 20 40 60 80 AMBIENT TEMPERATURE (ºC) 0 5 10 15 20 25 OUTPUT CURRENT (A) Figure 1: Thermal De-rating Curve Airflow Direction from Pin 24 to Pin 1 Figure 2: Efficiency vs Load and Line Figure 3: Short Circuit Characteristic (Channel 4: Output Current at 10A/div, Channel 2: Output Voltage) Figure 4: Transient Response 50-75% - 50%, 1A/µS (Channel 2: Current load step at 5A/div, Channel 3: Output Voltage deviation) Figure 6: Typical Power Up (Channel 2: DC Input, Channel 3: Output Voltage) Figure 7: Control On/Off (Channel 2: Remote ON/OFF, Channel 3: Output Voltage Channel 4: Power Good) www.artesyn.com File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated SIL25C-12SNEG-VJ Figure 8: Typical Ripple and Noise File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 8 SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated ID LABEL LOCATION 2.400 [60.96] 0.470 [11.94] 0.140 [3.56] 0.158 [4.02] PIN 1 TYP. 0.140 [3.56] 0.100 [2.54] [31.75] 1.250 0.520 [13.21] Dimensions in Inches Approx Metric Equiv in (mm) Third Angle Projections 0.260±0.030 [6.60±0.760] Tolerances (unless otherwise specified) 3 Places 0.010 (0.250) Pin Connections Pin No. Function 1 2 3 TRIM Not Connected Ground 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 POWER GOOD No Pin Not Connected Ground Ground Remote ON/OFF Remote Sense (GND) Remote Sense (O/P) Vin Vin Vin Vout Vout Ground Vout Ground Vout Ground Vout Ground Vout Figure 9: Mechanical Drawing and Pinout Table File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 9 www.artesyn.com SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated Note 1 Thermal reference point is defined as the highest temperature measured at any one of the specified thermal reference points. Note 2 The control pin is referenced to Vin- Note 3 The SIL25C is supplied as standard with active High logic. Control input pulled low: Unit Disabled Control input left open: Unit Enabled Note 4 Thermal reference set up: Unit mounted on an edge card test board 215mm x 115mm. Test board mounted vertically. For test details and recommended set-up see Application Note 148. Note 5 3-200Hz, sweep at 1/2 octave/min from low to high frequency, and then from high to low. Thirty minute dwell at all resonant points. CAUTION: Hazardous internal voltages and high temperatures. Ensure that unit is accessible only to trained personnel. The user must provide the recommended fusing in order to comply with safety approvals. File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 18 10 www.artesyn.com SIL25C Series | 25 A DC-DC Converter C Class Non-Isolated NORTH AMERICA e-mail: [email protected] % 800 769 7274 %+ 508 628 5600 EUROPEAN LOCATIONS e-mail: [email protected] IRELAND %+ 353 24 93130 AUSTRIA %+ 43 1 80150 FAR EAST LOCATIONS e-mail: [email protected] HONG KONG %+ 852 2699 2868 Longform Datasheet Artesyn Technologies® 2005 The information and specifications contained in this datasheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005 11 www.artesyn.com