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| Corporate: www.cdtechno.com OBSOLETE PRODUCT SLC100 40 Amp Single Output Quarter Brick DC/DC Converter Contact factory for replacement model Industry Standard Footprint & Size 2.28" x 1.45" High Efficiency Wide Input Voltage Range: 36 - 75VDC Output Voltages: 1.0V,1.2 V, 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5.0V & 12V Output VoltageTrim Function Remote Sense for output compensation Remote ON/OFF control referenced to input side (Positive or Negative Logic) Output Current Limit No Minimum Load Requirement SMD Models with Position PerfectTM Interconnects Isolation Voltage of 2000 VDC Fixed Frequency Operation UL/CUL 60950 recognized (US & Canada), basic insulation rating Meets TNV-SELV Isolation Requirements Meets Conducted Emissions Requirements of FCC Class B and EN55022 Class B with External Filter No Heatsink Required Thermal Shutdown Input Undervoltage Lockout The SLC100 Series is a 40 Amp single output, low-profile DC-DC converter in an industry standard package of 2.28" x 1.45" x 0.40". The SLC100 uses unique proprietary technologies to deliver ultrahigh efficiencies and excellent thermal performance. It includes extensive control and protection features for www..com maximum flexibility and provides a versatile solution for a whole range of applications with its input voltage range of 36-75 VDC and output voltages between 1.0VDC and 12.0VDC. The power dissipation of the SLC100 series is so low that a heat sink is not required. Thermal derating curves are provided indicating maximum allowable output current versus airflow and ambient temperature. The product features fast dynamic response characteristics and low output ripple critical for low voltage applications. SLC DC-DC converter modules are certified to UL/CUL 60950, and VDE to EN60950. It meets CISPR22/ EN55022/FCC15J Class B specs for EMI levels with external filtering. This high quality and highly reliable product is competitively priced and an ideal solution for distributed power, telecoms and datacom applications. PRODUCT SELECTION CHART NOMINAL INPUT VOLTAGE (VDC) 48 48 48 48 48 48 48 48 48 RATED OUTPUT VOLTAGE (VDC) 1.0 1.2 1.5 1.8 2.0 2.5 3.3 5.0 12.0 OUTPUT CURRENT MIN RATED LOAD(A) OUTPUT (A)1 0.0 40 0.0 40 0.0 40 0.0 40 0.0 40 0.0 40 0.0 30 0.0 20 0.0 8.3 INPUT CURRENT AT RATED LOAD (A) (48Vin) TBD 1.80 2.20 TBD TBD TBD TBD TBD TBD EFFICIENCY (%) TYPICAL TBD 80 82 TBD TBD TBD TBD TBD TBD MODEL SLC100 SLC100 SLC100 SLC100 SLC100 SLC100 SLC100 SLC100 SLC100 * Note 1: Maximum output current for SMD Models is 25A. Product: www.cdpoweronline.com SLC100 Rev B 5/2004 1 ABSOLUTE MAXIMUM RATINGS, ALL MODELS PARAMETER Input Voltage-Operating Input Voltage-Operating Operating Ambient Temperature Storage Temperature Output Short Circuit Duration Lead Temperature (Soldering, 10 sec max) CONDITIONS Continuous Transient (100 mS) MIN TYP MAX 75 TBD UNITS VDC VDC C C C -40 -40 Continuous +100 +125 +300 COMMON ELECTRICAL SPECIFICATIONS, ALL MODELS Specifications are at TA = +25C, Airflow = 300LFM (1.5m/s) at nominal input voltage unless otherwise specified. PARAMETER INPUT CONDITIONS MIN 36 2000 TYP 48 MAX 75 UNITS VDC VDC COMMON ELECTRICAL SPECIFICATIONS Voltage Range ISOLATION Input/Output Isolation Voltage Capacitance Resistance FEATURES Turn On Time Remote Sense Compensation Output Voltage Trim Range Output Over Voltage Protection Output to within 1% of Vnom Input to Output Input to Output 2000 10 pF MW 5.00 mS % of VNOM % of VNOM % of VNOM C C VDC VDC VDC mA TBD 0.8 VDC A VDC -10 +120 5 +10 +140 TBD TBD Over Temperature Shutdown Shutdown Turn On 31.50 32.50 0 Input Under Voltage Protection www..com Turn Off Turn Off Lockout Hysteresis Voltge ON/OFF Logic Function Logic Low Ion/off Logic Low Von/off Logic High Ion/off Logic High Von/off GENERAL Switching Frequency MTTF (per Telcordia TR-NWT-000332) 32.50 33.70 2.2 Open Collector TBD TBD TBD 200 KHz Hrs 2 MECHANICAL (THROUGH HOLE) PIN FUNCTIONS 1 2 3 4 5 6 7 8 +Vin Remote On/Off -Vin -Vout - Sense Trim + Sense +Vout NOTES: General Tolerance; .015 Pin Locations/Diameters: .005 Dimensions are in inches [Millimeters] Pin material: Copper Pin Finish: Matte Tin over Nickel Converter weight: [30.8g] UL/TUV Standards require a clearance greater than 0.06" between input and output for Basic insulation. This should be considered if copper traces are used on the top side of the board under the converter unit. Ferrite cores are considered part of the input/primary circuit. MECHANICAL (SMT) Interconnect FUNCTIONS 1 2 3 4 5 6 7 8 +Vin Remote On/Off -Vin -Vout - Sense Trim + Sense +Vout www..com NOTES: General Tolerance; .015 Interconnect Locations/ Diameters: .005 Dimensions are in inches [Millimeters] Pin material: Copper Pin Finish: Matte Tin over Nickel Converter weight: [30.8g] UL/TUV Standards require a clearance greater than 0.06" between input and output for Basic insulation. This should be considered if copper traces are used on the top side of the board under the converter unit. Ferrite cores are considered part of the input/primary circuit. * Interconnect co-planarity within 0.004" SLC100 Rev B 5/2004 3 ORDERING INFORMATION MODEL NUMBER SLC100 - 1 SLC100 - 2 SLC100 - 3 SLC100 - 4 SLC100 - 5 SLC100 - 6 SLC100 - 7 SLC100 - 8 SCL100 - 9 SLC100 - 10 SLC100 - 11 SLC100 - 12 SLC100 - 13 SLC100 - 14 SLC100 - 15 SLC100 - 16 SLC100 - 17 SLC100 - 18 Vout (Vdc) 1.0 1.2 1.5 1.8 2.0 2.5 3.3 5.0 12.0 1.0 1.2 1.5 1.8 2.0 2.5 3.3 5.0 12.0 PINOUT Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole SMD SMD SMD SMD SMD SMD SMD SMD SMD LOGIC Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive MODEL NUMBER SLC100 - 19 SLC100 - 20 SLC100 - 21 SLC100 - 22 SLC100 - 23 SLC100 - 24 SLC100 - 25 SLC100 - 26 SCL100 - 27 SLC100 - 28 SLC100 - 29 SLC100 - 30 SLC100 - 31 SLC100 - 32 SLC100 - 33 SLC100 - 34 SLC100 - 35 SLC100 - 36 Vout (Vdc) 1.0 1.2 1.5 1.8 2.0 2.5 3.3 5.0 12.0 1.0 1.2 1.5 1.8 2.0 2.5 3.3 5.0 12.0 PINOUT Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole SMD SMD SMD SMD SMD SMD SMD SMD SMD LOGIC Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative Negative www..com 4 APPLICATION NOTES When using remote sense with dynamic loads, the transient response at the point of load may be limited by the inductance present in the power lines. Severe load steps may require the addition of a capacitor CL across the output lines. When the load demands an immediate increase in load current, this capacitor helps to supply a portion of the current and reduces the burden on the converter. When the load is physically distanced from the converter, the inductance of the power leads, and any bypass conductance at the load, can result in increased phase shift in the converter's feedback loop, causing instability. This situation can be eliminated by inserting bypass capacitors (CB) from the outputs to the sense leads directly at the output pins. These capacitors decouple any AC on the power lines and assure that only the DC voltage is sensed. If remote sensing is not desired then +Sense and -Sense must be tied to their respective outputs for proper operation. CL Remote Sense The remote sense feature of the SLC100 can be used to compensate for voltage drops in the output power lines by sensing output voltage directly at the point of load. To enable this feature, connect the +Sense and -Sense pins to the +Vout and -Vout pins, respectively, at the point in the circuit where the tightest regulation is required (Figure 1). The sense leads conduct very little current compared with the power leads and therefore provide a more accurate indication of load voltage for regulation purposes. This enables the converter to increase (or decrease) its output voltage to compensate for any load distribution losses, allowing for a more precise load voltage. Refer to the product data sheet for the maximum output voltage compensation range of + Vin + Vout + Sense CB Load CB * * ON/OFF SLC100 (Top View) Trim - Sense Output Voltage Trim The SLC100's output voltage may be adjusted high or low by an amount indicated on the product data sheet. As shown in Figure 2, to raise the converter's output voltage a resistor must be placed between the Trim pin and +Vout pin. - Vin - Vout Figure 1 - Remote Sensing www..com In general, the line resistance, or load drop, between the output pins of the converter and load should be minimized. Using remote sense, a large line resistance, with a regulated load voltage, will result in a higher output voltage at the output of the DC/DC Converter. To prevent exceeding the converter's output power limits, a higher output voltage will require a reduction in the maximum allowable output current in accordance with the voltage/current power relationship. To minimize the line resistance between the converter and the load, the converter should be placed as close to the load as possible. Line resistance can further be decreased by using heavy gauge wire or by increasing the cross sectional area of the PC board traces. + Vin + Vout + Sense RT Load ON/OFF SLC100 (Top View) Trim - Sense - Vin - Vout Figure 2 - Trim Up Circuit SLC100 Rev B 5/2004 5 Remote ON/OFF Function APPLICATION NOTES To lower the converter output voltage a resistor must be placed between the Trim pin and -Vout pin as shown in Figure 3. + Vout + Sense ON/OFF Protective Functions Temperature Shutdown The over temperature shutdown feature of the SLC100 will cause the unit to shutdown at a typical pwb temperature of TBD. This protective feature is comprised of a thermistor in the units control loop. At a temperature of TBD this circuit will cause the PWM to go into an idle mode, resulting in no output from the converter and preventing damage to the converter components. When the temperature of the unit drops below TBD the fault condition will clear and the converter will resume normal operation. If the cause of the over temperature condition is not identified and corrected the unit will continue to cycle on and off indefinitely. + Vin SLC100 (Top View) Trim - Sense Load RT - Vin - Vout Figure 3 - Trim Down Circuit The resistance value required to achieve the desired amount of positive/negative trim can be determined by referring to the trim table for each model. If trimming is not desired then the Trim pin may be left open. In addition to the resistor values provided in the trim tables, the following equations can be use to calculate the required resistor value for a desired output voltage. These equations apply for the 1.5V and above models. For 1.2V models the trim tables must be used. Input Under-Voltage Shutdown The nominal input voltage for the SLC100 is 48Vdc. Once turned on reducing the input voltage to 32.5 Vdc nominal will shut down the device. At an input voltage less than 32.5V the under-voltage sensing circuit will send a signal to the PWM causing it to go into idle mode. This will result in no output from the converter, protecting the unit from a high input current condition. When the input voltage returns to a level above 32.5V the unit will return to normal operation. The unit will typically turn on at an input voltage of 33.7V nominal as indicated on the Product Data Sheet. This is due to hysterisis designed into the protective circuit to prevent excessive cycling of the converter. Remote ON/OFF Control Function The SLC100 is equipped with a primary ON/OFF pin used to remotely turn the converter on or off via a system signal. The input is TTL open-collector and/or FET opendrain compatible. For the positive logic model a system www..com logic low signal will turn the unit off. For negative logic models a system logic high signal will turn the converter off. For negative logic models where no control signal will be used the ON/OFF pin should be connected directly to -Vin to ensure proper operation. For positive logic models where no control signal will be used the ON/OFF pin should be left open. Brick Wall Current Limiting To protect against fault or short-circuit conditions on the output, each module is equipped with current-limiting circuitry designed to provide continuous protection. After reaching the current limit point (typically 20% above the rated output current), the voltage will range between its rated value and zero, depending upon the amount of overload. The unit will remain in operation continuously during this period down to a short-circuit condition. Once the short or overload has been eliminated, the output voltage will return to normal without cycling the input power. + Vin + Vout + Sense ON/OFF SLC100 (Top View) - Trim Sense - Vout - Vin Control Signal Figure 4 - Remote ON/OFF Control Circuit 6 APPLICATION NOTES Output Over-Voltage Protection The SLC100 has an output over voltage protection (OVP) circuit which monitors its own output voltage. If the output voltage of the converter exceeds between 120% and 140% of the nominal rating, the OVP circuit will shut down the converter. Once the OVP has been tripped the unit will need to be reset by cycling the input power or by toggling the ON/OFF power before normal operation can resume. SLC100 units with a non-latching OVP feature are available on request. Please contact the factory for further details. Start-Up, ON/OFF and Transient Response For each model, waveforms are provided showing output voltage response and timing of input voltage power up/down, remote ON/OFF state change and load current transient responses. Output voltage transient responses are provided for step load changes of 50% to 75% & 75% to 50% of rated load current. Waveforms for each Efficiency Performance Efficiency data for each model was determined as a function of both load current and input voltage. Efficiency vs. Input Voltage was measured at full load, ambient temperature of 25oC and airflow of 300LFM. Efficiency vs. Load Current was measured at 25oC, a nominal input voltage of 48Vdc and airflow of 300LFM. Graphs are provided for each model in their respective Safety The SLC100 meets safety requirements per UL/CUL 60950 and VDE EN60950, basic insulation rating. EMC/EMI Considerations Analysis pending. Performance Characterization Thermal Derating Maximum output current vs. ambient temperature at various airflow rates has been determined for each model of the SLC100. Each model was analyzed over an ambient temperature range of 0 to 85oC and at air flows up to 600LFM. Temperature limits for thermal www..com derating curves were TBD C for semiconductor junction temperature and TBD C for board temperature. SLC100 Rev B 5/2004 7 SLC100 1.2VOUT ELECTRICAL SPECIFICATIONS Specifications are at TA = +25C, Airflow = 300LFM (1.5m/s) at nominal input voltage unless otherwise specified. PARAMETER INPUT Maximum Input Current Full Load; Vin = 36Vdc Vin = 75Vdc Full Load, XXMhz Bandwidth Full Load (100Hz-1KHz) No Load -30 55 3.0 2 Fast blow external fuse 7 1.80 0.180 TBD A mC mApk-pk dB mA mA mA A Inrush Charge Reflected Ripple Current Input Voltage Ripple Rejection No Load Input Current Disabled Input Current Quiescent Input Current Recommended Input Fuse OUTPUT Voltage Setpoint Voltage Range Line Regulation Load Regulation Output Ripple Output Current Range Output Current Limit Inception Efficiency Transient Response Peak Deviation Settling Time External Load Capacitance Rated Power 50% to 75% Load Step at di/dt =0.1 A/mS; Cext =TBD TBD TBD 50,000 48 mV mS mF W 0 44 80 TBD Over all conditions of line, load and temperature 1.182 TBD Vdc 0.05 0.25 100 0.10 0.50 120 401 48 1.2 1.218 TBD % of Vnom % of Vnom mVpk-pk A A % Vdc CONDITIONS MIN TYP MAX UNITS OUTPUT INPUT * Note 1: Maximum output current for SMD Models is 25A. www..com 8 SLC100 1.5VOUT ELECTRICAL SPECIFICATIONS Specifications are at TA = +25C, Airflow = 300LFM (1.5m/s) at nominal input voltage unless otherwise specified. PARAMETER INPUT Maximum Input Current Full Load; Vin = 36Vdc Vin = 75Vdc Full Load, XXMhz Bandwidth Full Load (100Hz-1KHz) No Load -30 75 3.0 2 Fast blow external fuse 7 2.20 0.180 TBD A mC mApk-pk dB mA mA mA A Inrush Charge Reflected Ripple Current Input Voltage Ripple Rejection No Load Input Current Disabled Input Current Quiescent Input Current Recommended Input Fuse OUTPUT Voltage Setpoint Voltage Range Line Regulation Over all conditions of line, load and temperature 1.490 TBD Vdc 0.05 0.25 0 44 82 50% to 75% Load Step at di/dt =0.1 A/mS; Cext =TBD Peak Deviation Settling Time External Load Capacitance Rated Power TBD TBD 50,000 48 mV mS mF W TBD 0.10 0.50 100 40 1 CONDITIONS MIN TYP MAX UNITS INPUT 1.5 1.520 TBD Vdc OUTPUT % of Vnom % of Vnom mVpk-pk A A % Load Regulation Output Ripple Output Current Range Output Current Limit Inception Efficiency Transient Response 48 * Note 1: Maximum output current for SMD Models is 25A. www..com USA: Canada: UK: Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2009 Murata Power Solutions, Inc. France: Japan: China: Germany: Munchen, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com 9 |
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