S24SE/S24DE series 20W Single/Dual Output DC/DC Converter FEATURES Efficiency up to 88% Wide input range, 9V-36V Package with Industry Standard Pinout Package Dimension: 25.4 x25.4 x10.2mm (1.0” x1.0” x0.40”)(No HSK) 31.0 x25.4 x17.5mm (1.22” x1.00” x0.69”)(HSK) Over voltage protection, hiccup mode Over current protection, hiccup mode Positive or Negative Remote ON/OFF Without tantalum capacitor inside module Operating Temperature range - 40°C to +85°C Input to Output Isolation: 1600VDC RoHs Compliant 3 Years Product Warranty Heat-sink is option UL60950, 2ND Edition, 2011-12-19 Recognized The S24SE/S24DE series is miniature, isolated 20W DC/DC converters with 1600VDC isolation. The S24SE/S24DE family comes with a host of industry-standard features, such as over current protection, over voltage protection, over temperature protection and remote on/off. An optional heatsink is available for more extreme thermal requirements. All models have an untra-wide 4:1 input voltage range (9V to 36V). With operating temperature of -40°C to +85°C, it is suitable for customers’ critical applications, such as process control and automation, transportation, data communication and telecom equipment, test equipment, medical device and everywhere where space on the PCB is critical. Model List Model Number S24SE3R306 S24SE05004 S24SE12002 S24SE15001 S24DE120R8 S24DE150R6 Input Voltage (Range) Output Voltage VDC 24 (9 ~ 36) Output Current Input Current (typ input voltage) Load Regulation Maxcapacitive Load @Max. Load @No Load Efficiency (typ.) Max. Min. @Max. Load VDC mA mA mA(typ.) mA(typ.) mV uF % 3.3V 5.0V 12V 15V ±12V ±15V 6000 4000 1670 1330 830 670 0 0 0 0 0 0 960 960 960 960 960 960 55 55 20 20 25 25 ±10 ±10 ±12 ±15 ±120 ±150 10000 10000 1000 1000 ±1000 ±680 87% 88% 88% 88% 88% 88% Input Characteristics Item Input Surge Voltage (100 msec) Input Turn-On Voltage Threshold Input Turn-Off Voltage Threshold Input Under-Voltage Lockout Hysteresis Off-Converter Input Current Input reflected ripple current Reverse Polarity Input Current ON/OFF Control, Logic High ON/OFF Control, Logic Low Input Filter DS_S24SE/S24DE 20W _10172013 Model All Models All Models All Models All Models All Models All Models,with 12uH, 20MHz All Models All Models All Models All Models Min. Typ. 8 7 0.4 8.5 7.5 1 6 5 --- --2.4 -0.7 Max. 50 9 8 1.7 20 0.3 10 0.8 Internal PI Filter Unit VDC VDC VDC VDC mA mA A VDC VDC E-mail:[email protected] http://www.deltaww.com/dcdc P1 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter Output Characteristics Item Output Voltage Accuracy Output Voltage Balance Conditions Min. ----- Dual Output, Balanced Loads Single output Dual output Dual output,Asymmetrical Load 25%-100% Full Load Over Load, Line and Temperature 12V, 15V, ±12V, ±15V 3.3V, 5.0V 50%-75% full load, 0.1A/uS Output Voltage 10% Low, Hiccup Long Term, Auto-recovery Hiccup, Auto-recovery Single Output Line Regulation Cross Regulation Total Outupt Voltage Range Ripple & Noise Ripple & Noise Dynamic load response Output Over Current Protection Short Output Protection Output Over-Voltage Protection Output Trim Range ----- Typ. ±1.0 ±1.0 ±0.1 ±0.1 Max. ±2.0 ±2.0 ±0.2 ±0.5 Unit %Vo %Vo %Vo %Vo ±2 ±3 %Vo --50 50 3 ±3 ----- 110 160 %Vo mV P-P mV P-P %Vo %Iomax 115 -10 150 +10 %Vo %Vo General Characteristics Item Conditions Min. Typ. Max. Unit I/O Isolation Voltage (rated) --- --- 1600 VDC I/O Isolation Resistance 10 --- --- MΩ I/O Isolation Capacitance 1100 pF Switching Frequency 550 KHz Environmental Specifications Parameter Conditions Min. Max. Unit Ambient -40 +85 ℃ Case Temperature --- +105 ℃ Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H Cooling Free-Air convection Operating Temperature Range (with Derating) Power Derating Curves (No Heat Sink and With Heat Sink) 110% Output Power(%) S24SE&S24DE_20W Series (Encapsulation) Output Power vs. Ambient Temperature at Natural Convection 110% 100% 100% 90% 90% 80% 80% 70% Output Power(%) S24SE &S24DE_20W Series (Encapsulation) Output Power vs. Ambient Temperature at Natural Convection (with Heat Sink) 70% Natural Convection 60% 60% 50% 50% 40% 40% 30% 30% 20% 20% 10% 10% 0% Natural Convection 0% -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 Ambient Temperature (℃) -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 Ambient Temperature (℃) Notes 1 2 3 4 Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted. Ripple & Noise measurement bandwidth is 0-20MHz, with 10µF, tantalum capacitor and 1µF ceramic capacitor. All DC/DC converters should be externally fused at the front end for protection. Specifications are subject to change without notice. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P2 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter ELECTRICAL CHARACTERISTICS CURVES - S24SE05004, 9-36VIN, 5.0V/4A 3.5 90 87 POWER DISSIPATION(W) EFFICIENCY(%) 84 81 36Vin 78 24Vin 75 72 9Vin 69 3.0 36Vin 2.5 2.0 24Vin 9Vin 1.5 66 1.0 63 60 0.5 0.5 1 1.5 2 2.5 3 3.5 4 OUTPUT CURRENT(A) 0.5 1 1.5 2 2.5 3 3.5 4 OUTPUT CURRENT(A) Efficiency vs. load current for various input voltage at 25°C. Full load input characteristics at room temperature. Turn-on transient at full load current (10ms/div). Top Trace: Vout; 2V/div; Bottom Trace: ON/OFF input: 5V/div. Turn-on transient at full load current (10 ms/div). Top Trace: Vout; 2V/div; Bottom Trace: input voltage: 8V/div. Output voltage ripple at nominal input voltage and max load current (20 mV/div, 2us/div) Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Bandwidth: 20 MHz. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P3 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter ELECTRICAL CHARACTERISTICS CURVES - S24SE12002, 9-36VIN, 12V/1.67A 3.5 88 3.1 POWER DISSIPATION(W) 90 EFFICIENCY(%) 86 84 36Vin 24Vin 82 9Vin 80 36Vin 2.7 24Vin 2.3 1.9 9Vin 1.5 78 1.1 76 0.7 74 0.3 0.5 0.7 0.9 1.1 1.3 OUTPUT CURRENT(A) 1.5 1.7 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 OUTPUT CURRENT(A) Efficiency vs. load current for various input voltage at 25°C. Power diddipation vs. load current at 25°C. Turn-on transient at full load current (4ms/div). Top Trace: Vout; 5V/div; Bottom Trace: ON/OFF input: 5V/div. Turn-on transient at full load current (4 ms/div). Top Trace: Vout; 5V/div; Bottom Trace: input voltage: 8V/div. Output voltage ripple at nominal input voltage and max load current (10 mV/div, 2us/div) Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Bandwidth: 20 MHz. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P4 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter ELECTRICAL CHARACTERISTICS CURVES - S24DE120R8, 9-36VIN, ± 12V/0.83A 3.5 89 POWER DISSIPATION(W) 87 EFFICIENCY(%) 85 83 36Vin 24Vin 9Vin 81 79 3.0 36Vin 24Vin 2.5 9Vin 2.0 1.5 77 1.0 75 73 0.5 0.2 0.3 0.4 0.5 0.6 0.7 0.8 OUTPUT CURRENT(A) 0.2 0.3 0.4 0.5 0.6 0.7 0.8 OUTPUT CURRENT(A) Efficiency vs. load current for various input voltage at 25°C. Power dissipation vs. load current at 25°C. Turn-on transient at full load current (4ms/div). Top two Traces: Vout; 6V/div; Bottom Trace: ON/OFF input: 5V/div. Turn-on transient at full load current (4 ms/div). Top two Traces: Vout; 6V/div; Bottom Trace: input voltage: 15V/div. Output voltage ripple at nominal input voltage and max load current Top trace +12V, 10 mV/div,Bottom trace -12V, 20mV/div, 2us/div. Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Bandwidth: 20 MHz. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P5 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter ELECTRICAL CHARACTERISTICS CURVES - S24DE150R6, 9-36VIN, ± 15V/0.67A 90 3.4 88 POWER DISSIPATION(W) EFFICIENCY(%) 86 84 82 36Vin 24Vin 80 78 9Vin 76 3.0 36Vin 24Vin 2.6 9Vin 2.2 1.8 74 1.4 72 70 0.1 0.2 0.3 0.4 0.5 0.6 0.7 OUTPUT CURRENT(A) 1.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 OUTPUT CURRENT(A) Efficiency vs. load current for various input voltage at 25°C. Power dissipation vs. load current at 25°C. Turn-on transient at full load current (4ms/div). Top two traces: Vout; 8V/div; Bottom Trace: ON/OFF input: 5V/div. Turn-on transient at full load current (4ms/div). Top two traces: Vout; 8V/div; Bottom Trace: input voltage: 15V/div. Output voltage ripple at nominal input voltage and max load current Top trace +15V, 10 mV/div,Bottom trace -15V, 20mV/div, 2us/div. Load cap: 10µF, tantalum capacitor and 1µF ceramic capacitor. Bandwidth: 20 MHz. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P6 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter DESIGN CONSIDERATIONS Input Source Impedance The impedance of the input source connecting to the DC/DC power modules will interact with the modules and affect the stability. A low ac-impedance input source is recommended. If the source inductance is more than a few μH, we advise a 47μF electrolytic capacitor mounted close to the input of the module to improve the stability. Input Reflected Ripple Current is ic Vin+ + + Input reflected ripple current, is, through a 12µH source inductor at nominal input voltage and rated load current (5 mA/div, 2us/div) VinCs: 220uF 100uF, ESR=0.2 ohm @ 25oC 100KHz Output Ripple Noise Test set-up diagram showing measurement points for Input Terminal Ripple Current and Input Reflected Ripple Current. Measured input reflected-ripple current with a simulated source Inductance (LTEST) of 12 μH. Capacitor Cs offset possible battery impedance. Output voltage ripple test setup. Load capacitance: 1µF ceramic capacitor and 10µF tantalum capacitor. Bandwidth: 20 MHz. Scope measurements should be made using a BNC cable (length shorter than 20 inches). Position the load between 51 mm to 76 mm (2 inches to 3 inches) from the module. Input Terminal Ripple Current, ic, at full rated output current and nominal input voltage with 12µH source impedance and 100µF electrolytic capacitor (75 mA/div, 2us/div). DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P7 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter DESIGN CONSIDERATIONS Layout and EMI considerations FEATURES DESCRIPTIONS Over-Current Protection Delta’s DC/DC power modules are designed to operate in a wide variety of systems and applications. For design assistance with EMC compliance and related PWB layout issues, please contact Delta’s technical support team. An external input filter module is available for easier EMC compliance design. Below is the reference design for an input filter to pass EN55022 (VDE0878) class A(both q. peak and average). The modules include an internal output over-current protection circuit, which will endure current limiting for an unlimited duration during output overload. If the output current exceeds the OCP set point, the modules will shut down (hiccup mode). The modules will try to restart after shutdown. If the overload condition still exists, the module will shut down again. This restart trial will continue until the overload condition is corrected. Over-Voltage Protection The modules include an internal output over-voltage protection circuit, which monitors the voltage on the output terminals. If this voltage exceeds the over-voltage set point, the modules will shut down, and then restart after a hiccup-time (hiccup mode). L1=1uH C1=47uF/50V, electrolytic capacitor dBμV 80.0 If latch mode is needed, please contact with Delta. Limits 55022MAV 55022MQP 70.0 Over-Temperature Protection 60.0 50.0 40.0 Transducer 8130 Traces PK+ AV 30.0 20.0 The over-temperature protection consists of circuitry that provides protection from thermal damage. If the temperature exceeds the over-temperature threshold the module will shut down.The module will restart after the temperature is within specification. 10.0 Remote On/Off 0.0 150 kHz 1 MHz 10 MHz 30 MHz Test Result: At T = +25C , Typical input voltage and full load. Green is quasi peak mode; Blue is average mode. The remote on/off feature on the module can be either negative or positive logic. Negative logic turns the module on during a logic low and off during a logic high. Positive logic turns the modules on during a logic high and off during a logic low. Remote on/off can be controlled by an external switch between the on/off terminal and the Vi (-) terminal. The switch can be an open collector or open drain. For negative logic if the remote on/off feature is not used, please short the on/off pin to Vi (-). For positive logic if the remote on/off feature is not used, please leave the on/off pin to floating. Recommended PCB Layout It is suggested to use multiple layers PCB and large size copper on system board which connect to pins of module, that can achieve better thermal performance. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P8 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter For 12V signle output(Kohm): Remote on/off implementation Output Voltage Adjustment(TRIM) For 15V single output(Kohm): Only single output modules has output adjust function. To increase the output voltage set point, connect an external resistor between the TRIM pin and the Vout(-). To decrease the output voltage set point, connect an external resistor between the TRIM pin and the Vout(+). The maximumu adjust range is ±10%, the TRIM pin should be left open if this feature is not used. For 3.3V single output(Kohm): For example: When need trim up to 3.4V, then the external resistor should be 100Kohm between trim pin and Vout- pin. When need trim down to 3.1V, then the external resistor should be 40Kohm between trim pin and Vout+ pin. THERMAL CONSIDERATIONS For 5V single output(Kohm): Heat can be removed by increasing airflow over the module. To enhance system reliability, the power module’s case temperature should always be operated below 105℃. If the case temperature exceeds the maximum operating temperature, reliability of the unit may be affected. Air velocity and ambient temperature test point. 15.0mm (0.6") DS_S24SE/S24DE 20W _10172013 AIR FLOW 50.8mm (2.0") MODULE E-mail:[email protected] http://www.deltaww.com/dcdc P9 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter Mechanical Drawing Mechanical Dimensions Pin Connections Single Output Pin Function Dual Output Function 1 Vin+ Vin+ 2 Vin- Vin- 3 On/off On/off 4 Vout- Vout- 5 Trim Common 6 Vout+ Vout+ Physical outline Case Size: 25.4*25.4*9.5(1.0”*1.0”*0.38”) Case material: Al alloy, anodize black Baseplate material: Non-coductive FR-4 Pin material: Brass; finish: Matte Tin plating and Nickel under plating Pin length: refer part numbering system Weight: 17.5 grams All dimensions in mm (inches) Tolerance: X.X±0.5 (X.XX±0.02) X.XX±0.25 ( X.XXX±0.010) Pins Diameter : ±0.10(±0.004) Application notice: For modules with through-hole pins, they are intended for wave soldering assembly onto system boards; please do not subject such modules through reflow temperature profile. Recommened layout refer below DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P10 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter Mechanical Drawing with heat sink(optional) Mechanical Dimensions Physical Outline 1 Heat sink Material: Al-6063 Finish: anodize black Weight: 4grams 2 Clamp Material: spring steel Finish: Nickel plating 3 Thermal pad Material: Sil-pad Thermal conductivity: 1.6W/m-K 4 Model weight: 22.5 grams All dimensions in mm (inches) Tolerance: X.X±0.5 (X.XX±0.02) X.XX±0.25 ( X.XXX±0.010) Note: 1. add heat sink to help heat dissipation and increase reliability of convert oprating at high ambient temperature 2. please refer derating curve while upgrate the operating temperature of converter 3. heat sink will be mounted for volume orders, separated heat sink only be supplied for prototype 4. for model with heat sink option, the recommended layout only need note the length more larger than without heat sink DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P11 S24SE/S24DE series 20W Single/Dual Output DC/DC Converter Part Numbering System S 24 S E 050 04 N Form Input Number Product Output Output On/off factor voltage of output series voltage current logic S 24 – 9~36V S - Single E - Series 050 – 5.0V 04 - 4A D - Dual No. N- D F Pin length D - 0.24” Negative P - Positive A Option Code F - RoHS 6/6 (Lead Free) A – Standard. (with metal T - 0.22” case) R - 0.17” H – With heat sink CONTACT: www.deltaww.com/dcdc USA: Telephone: East Coast: 978-656-3993 West Coast: 510-668-5100 Fax: (978) 656 3964 Email: [email protected] Europe: Phone: +31-20-655-0967 Fax: +31-20-655-0999 Email: [email protected] Asia & the rest of world: Telephone: +886 3 4526107 ext 6220~6224 Fax: +886 3 4513485 Email: [email protected] WARRANTY Delta offers a three (3) years limited warranty.Complete warranty information is listed on our web site or is available upon request from Delta. Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for any infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice. DS_S24SE/S24DE 20W _10172013 E-mail:[email protected] http://www.deltaww.com/dcdc P12