75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS Features Description The 4:1 Input Voltage 75 Watt Single WDE DC/DC converter provides a precisely regulated dc output. The output voltage is fully isolated from the input, allowing the output to be positive or negative polarity and with various ground connections. The 75 Watt WDE meets the most rigorous performance standards in an industry standard footprint for mobile (12Vin), process control (24Vin), military COTS (28Vin) and higher Vin applications. The 4:1 Input Voltage 75 Watt WDE includes remote sensing, ultra-wide output voltage trim, and remote ON/ OFF. The digital power management enables increased reliability, configurability, voltage / current precision and fault management, including: * * * * * * * * Precision, adjustable over-temperature protection Configurable input under and over voltage protection Configurable current-limit inception and shut-down delay Logging of historical fault events in non-volatile memory Precision (+/-0.2%) output voltage accuracy and trim Monitoring of Vin, Vout, Iout and Temperature Digital dynamic adjustment of Vout Digital warning thresholds for faults 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 `Black Box' digital fault datalogging Digitally Configurable voltage, current & overtemperature Digitally configurable fault response High power density 4:1 Input voltage range Small size 2.5" x 1.1" x 0.50" Efficiency up to 90% Excellent thermal performance with metal case Auto-softstart Constant frequency Remote sense Remote ON/OFF Analog and digital voltage trim No minimum load requirement Water washable, high humidity applications Good shock and vibration damping Available in both RoHS and non-RoHS construction. See ordering info below. Input Range VDC Vout VDC Iout ADC 36 5.0 15 36 12 6 9 36 24 3 9 36 28 2.5 24S48.1WDE 9 36 48 1.5 48S24.3WDE 18 75 24 3 48S28.3WDE 18 75 28 2.5 48S48.1WDE 18 75 48 1.5 Model Min Max 24S5.15WDE 9 24S12.6WDE 9 24S24.3WDE 24S28.3WDE To order RoHS, add (RoHS) to the part number Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS 24V Input Parameters Model 24SXX-YY-WDE Units Voltage Range MIN TYP MAX 9.0 24.0 36.0 V Input Overvoltage (100 ms) MAX 50 [Unit may shut down at input overvoltage set point] V Input Ripple Rejection (120Hz) TYP 20 [With recommmended ext. LC filter] dB Undervoltage Lockout TYP Start-up: 9.0 / Shut-down: 8.75 V Input Reverse Voltage Protection Yes - Main FET Body Diode Conduction 2A max/1Sec Inrush Current MAX 0.05 [With recommended ext. LC filter] A2s Reflected Ripple TYP 50 [With recommended ext. LC filter] mA rms Switching Frequency TYP 275 kHz See Note 2 A MIN 30 (Ceramic) F Recommended Fuse External Input Capacitance 24V Output Parameters Model 24S5.15WDE 24S12.6WDE 24S24.3WDE 24S28.3WDE 24S48.1WDE Units 5.0 12 24 28 48 V Output Voltage Output Voltage Setpoint Accuracy MAX 0.2 % Turn On Overshoot TYP 5 % Temperature Coefficient (5) TYP MAX 0.02 %/C Noise (3) TYP TYP 50 25 120 50 240 80 280 100 480 150 mV p-p mV Load Current MIN MAX 0 15 0 6 0 3 0 2.5 0 1.5 A Load Transient Overshoot (4) TYP 5 % Load Transient Recovery Time (4) TYP 500 s Load Regulation (6) Min-Max Load TYP MAX 0.2 1 % Line Regulation Vin = Min-Max TYP MAX 0.2 1 % Overvoltage Protection (OVP) Threshold OVP Type - Non-latching Open Loop Overvoltage Clamp Hiccup Mode TYP 120 % Output Current Limit Vout = 90% of Vout-nom TYP 120 % External Output Capacitance MIN MAX 300 3000 20 1000 20 400 20 300 20 200 F Efficiency - Max Load TYP 91 92 87 89 88 % 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 rms www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS 48V Input Parameters Model 48SXX-YY-WDE Units Voltage Range MIN TYP MAX 18.0 48.0 75.0 V Input Overvoltage (100 ms) MAX 100 [Unit may shut down at input overvoltage set point] V Input Ripple Rejection (120Hz) TYP 20 [With recommmended ext. LC filter] dB Undervoltage Lockout TYP Start-up: 17.8 / Shut-down: 17.5 V Input Reverse Voltage Protection Yes - [Main FET Body Condcution 2.5A / 1Sec Max] Inrush Current MAX 0.1 [With recommended ext. LC filter] A2s Reflected Ripple TYP 50 [With recommended ext. LC filter] mA rms Switching Frequency TYP Recommended Fuse External Input Capacitance MIN 275 kHz See Note 2 A 20 (Ceramic) F 48V Output Parameters Model Output Voltage 48S24.3WDE 48S28.3WDE 48S48.1WDE Units 24 28 48 V Output Voltage Setpoint Accuracy MAX 0.2 % Turn On Overshoot TYP 5 % Temperature Coefficient (5) TYP MAX 0.02 %/C Noise (3) TYP TYP 240 80 280 100 480 150 mV p-p mV rms Load Current MIN MAX 0 3 0 2.5 0 1.5 A Load Transient Overshoot (4) TYP 5 % Load Transient Recovery Time (4) TYP 500 s Load Regulation (6) Min-Max Load TYP MAX 0.2 1 % Line Regulation Vin = Min-Max TYP MAX 0.2 1 % Overvoltage Protection (OVP) Threshold OVP Type - Non-latching Open Loop Overvoltage Clamp TYP 120 % Output Current Limit Vout = 90% of Vout-nom TYP 120 % External Output Capacitance MIN MAX 20 400 20 300 20 200 F Efficiency - Max Load TYP 87 89 89 % 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS General Specifications All Models Units ON/OFF Function Converter - ON HIGH Logic Level / Leave ON/OFF Pin Open (11) MIN 3.0 V External Leakage Current Allowed for Logic High (7) MAX 10 A Converter - OFF LOW Logic Level / Tie ON/OFF Pin to -INPUT (11) MAX 1.0 V Sinking Current for Logic Low MAX 500 A Idle Current (Module is OFF) TYP 40 mA Turn-on Time to 1% error TYP 40 ms Output Voltage Remote Sensing (12) Maximum Voltage Drops on Leads MAX 750 mV Line Regulation under remote sensing TYP MAX 0.2 1 % Load Regulation under remote sensing TYP MAX 0.2 1 % Trim Range MIN TYP -20 +10 % of Vout Input Resistance TYP 47.5 k Open Circuit Voltage TYP 2.0 V TYP 110 % of Vout Input to Output Isolation 10A Leakage MAX 1544 VDC Input to Output Resistance MIN 10 M Input to Output Capacitance TYP 3300 pF Output Voltage Trim (12) Trim Limit Maximum Output Voltage Isolation Environmental MTBF Telcordia (Bellcore) standard SR-332, issue 2, using Method 1. 50% electrical stress, 40C Components 10.9 Million hours Case Operating Temperature Range MIN MAX -55 +100 C Storage Temperature MIN MAX -55 +120 C Thermal Impedance (8) TYP 9 C/W Thermal Shutdown Internal Temperature (Auto Restart) TYP 110 C Unit Weight 55 g Case Dimension 2.5" x 1.1" x 0.50" Notes: (1) All parameters measured at Tc=+25C ambient, Vin = Vnom, maximum rated load, unless otherwise noted. Refer to CALEX Application Notes for definition of terms, measurement circuits and other information. (2) External fusing should be used for system protection in the event of a catastrophic failure. See CALEX Application Note 9 in the Calex DC/DC Catalog to determine the correct fuse. (3) Output noise is measured with a 10F ceramic capacitor and a 1F ceramic capacitor connected across the output pins. The fundamental component of noise is at the switching frequency. Using smaller value capacitors will make the output noise slightly higher. Bandwidth limit is 20 MHz. In system board design highvoltage capacitors between input and output from 1000pF to 6800pF can be used to reduce common-mode noise. (4) Load Transient Overshoot is the output voltage peak amplitude, referenced to the final value, due to a step load change from 50% of maximum load to 75% of maximum load. "Load Transient Overshoot" and "Dynamic Response" are the same specification. Load Transient Recovery Time is the time it takes the output to return to the specified voltage error band centered around the final value. Transient response may degrade at low load currents. (5) Temperature coefficient is defined for case temperatures. Output voltage deviation is calculated as the maximum resulting from either 1) 25C case to maximum operating case temperature, or 2) 25C case to minimum operating case temperature. (6) Load regulation is defined as the output voltage change resulting from a load current change from minimum to maximum. The voltage is measured at the output pins. (7) When an external ON/OFF switch is used, such as an open collector switch, logic high requires the switch to be highimpedance. Switch leakage currents greater than 10A may be sufficient to trigger the ON/OFF to the logic-low state. (8) Thermal impedance is tested with the converter mounted vertically and facing another printed circuit board 1/2 inch away. Thermal impedance is approximately 9C/W. (9) Water washability - Calex DC/DC converters are designed to withstand most solder/wash processes. Careful attention should be used when assessing the applicability in your specific manufacturing process. Converters are not hermetically sealed. (10) The input impedance on these units must be kept to a maximum of 100m. In order to support this requirement, this converter needs 55F of capacitance (low ESR) for every 1.0H of inductance between the power source and the DC/DC converter. (11) The range between 1V as maximum turn off voltage and 3V as minimum turn on voltage is considered the dead-band. Operation in the dead-band is not recommended. (12) Refer to Calex Application Note 4 for methods to apply Remote Sense and Trim. (13) Specifications subject to change without notice. (14) RoHS Compliance: See Calex Website www.calex.com/RoHS.html for the complete RoHS Compliance statement. The RoHS marking is as follows. General Designed to meet UL/cUL 60950, IEC/EN 60950-1 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS Characteristic Curves: 24S5.15WDE 95 10 90 9 85 9Vin 75 24Vin 70 36Vin 65 Power Dissipation(W) 8 80 Efficiency(%) 24S5.15WDE 60 9Vin 7 6 24Vin 5 36Vin 4 3 55 2 50 1 3 5 7 9 11 13 1 15 3 5 7 24S12.6WDE 94 10 92 9 90 13 15 24S12.6WDE 86 9Vin 84 82 24Vin 80 36Vin 78 Power Dissipation(W) 8 88 Efficiency(%) 11 24S5.15WDE Power Dissipation 24S5.15WDE Efficiency Curve 76 7 9Vin 6 24Vin 5 36Vin 4 3 74 2 72 1 70 1 2 3 4 5 1 6 2 3 4 5 6 Current (A) Current (A) 24S12.6WDE Power Dissipation 24S12.6WDE Efficiency Curve 24S24.3WDE 24S24.3WDE 12 90 11 88 10 84 9Vin 82 80 24Vin 78 36Vin 76 Power Dissipation(W) 86 Efficiency(%) 9 Current (A) Current (A) 9 9Vin 8 24Vin 7 6 36Vin 5 4 74 3 72 2 70 0.5 1 1.5 2 2.5 0.5 3 24S24.3WDE Efficiency Curve 1.5 2 2.5 3 24S24.3WDE Power Dissipation 24S28.3WDE 90 1 Current (A) Current (A) 24S48.1WDE 16 88 14 84 9Vin 82 80 24Vin 78 36Vin 76 74 72 Power Dissipation(W) Efficiency(%) 86 12 9Vin 10 24Vin 8 36Vin 6 4 70 0.5 1 1.5 2 2 0.25 2.5 Current (A) 0.75 1 1.25 1.5 Current (A) 24S28.3WDE Efficiency Curve 2401 Stanwell Drive, Concord Ca. 94520 0.5 24S28.3WDE Power Dissipation Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS 24S48.1WDE 90 16 85 14 9Vin 75 24Vin 70 65 36Vin 60 Power Dissipation(W) Efficiency(%) 80 24S48.1WDE 12 9Vin 10 24Vin 8 36Vin 6 4 55 50 0.25 0.5 0.75 1 1.25 2 0.25 1.5 0.5 0.75 48S24.3WDE 12 87 11 84 10 Efficiency(%) 18Vin 78 75 48Vin 72 75Vin 69 Power Dissipation(W) 90 81 1.5 48S24.3WDE 9 18Vin 8 48Vin 7 6 75Vin 5 66 4 63 3 2 60 0.5 1 1.5 2 Current (A) 2.5 0.5 3 1 1.5 2 2.5 3 Current (A) 48S24.3WDE Efficiency Curve 48S24.3WDE Power Dissipation 48S28.3WDE 12 87 11 81 18Vin 78 48Vin 75 72 75Vin 69 66 Power Dissipation(W) 90 84 Efficiency(%) 1.25 24S48.1WDE Power Dissipation 24S48.1WDE Efficiency Curve 48S28.3WDE 10 9 18Vin 8 48Vin 7 75Vin 6 5 4 63 60 3 0.5 1 1.5 2 0.5 2.5 1 Current (A) 2.5 16 85 18Vin 75 70 48Vin 65 75Vin 60 Power Dissipation(W) 14 80 12 18Vin 10 48Vin 8 75Vin 6 4 55 50 0.25 2 48S48.1WDE 48S48.1WDE 90 1.5 Current (A) 48S28.3WDE Power Dissipation 48S28.3WDE Efficiency Curve Efficiency(%) 1 Current (A) Current (A) 0.5 0.75 1 1.25 1.5 2 0.25 0.5 Current (A) 48S48.1WDE Efficiency Curve 2401 Stanwell Drive, Concord Ca. 94520 0.75 1 Current (A) 1.25 1.5 48S48.1WDE Power Dissipation Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS Pin Name Pin Dia. (Typ.) 1 -Input 0.04" TOLERANCE: ALL DIMENSIONS ARE TYPICAL IN INCHES UNLESS OTHERWISE NOTED: 2 On/Off 0.04" X.XX 0.02 3 +Input 0.04" X.XXX 0.005 4 -Output 0.06" 5 -Sense 0.04" 6 Trim 0.04" 7 + Sense 0.04" 8 +Output 0.06" 9 SDA (-Input Ref.) 0.04" 10 SCL (-Input Ref.) 0.04" 11 SCL (-Output Ref.) 0.04" 12 SDA (-Output Ref.) 0.04" 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1 75 WATT WDE SERIES DIGITAL DC/DC CONVERTERS External Input Filter Recommendation Note: Capacitors C1, C2 and C3 to be placed within 0.5" of DC/DC input pins. 9 - 36Volt Input Range Reference Description Part Number Supplier R1 1 , 0.25W Any Any L1 470 nH, 10.9A FP3-R47-R or Equivalent Cooper-Bussman C1, C2, C3 10 F, 50V, X5R, 1206 CGA5L3X5R1H106K or Equivalent TDK C4 100 F, 63V, 105C, Electrolytic UPM1J101MPD-ND or Equivalent Nichicon 18 - 75Volt Input Range Reference Description Part Number Supplier R1 2.2 , 0.25W Any Any L1 1 H, 6.2A FP3-1R0-R or Equivalent Cooper-Bussman C1, C2, C3 4.7 F, 100V, X7S, 1210 C3225X7S2A475M or Equivalent TDK C4 47 F, 100V, 105C, Electrolytic UPW2A470MPD or Equivalent Nichicon Note: Use only ceramic capacitors in positions C1, C2 and C3. 2401 Stanwell Drive, Concord Ca. 94520 Ph: 925-687-4411 Fax: 925-687-3333 www.calex.com Email: sales@calex.com ECO 141118-1, 150722-1, 170530-3, 171030-1