rev. Description Features Designed to convert a wide input voltage range into an isolated regulated voltage, the VWRAS2-SIP series is well suited for providing board-mount local supplies in a wide range of applications, including mixed analog/digital circuits, test & measurement equip., process/machine controls, datacom/telecom fields, etc... ·Wide (2:1) input range ·High efficiency to 80% ·Regulated ·Dual voltage output ·I/O Isolation 1500VDC ·No heatsink required ·Short circuit protection ·Remote on/off ·MTBF >1,000,000 hrs ·Temperature range: -40°C~+85°C Model Input Voltage Nominal 5 Vdc 5 Vdc 5 Vdc 5 Vdc 12 Vdc 12 Vdc 12 Vdc 12 Vdc 24 Vdc 24 Vdc 24 Vdc 24 Vdc 48 Vdc 48 Vdc 48 Vdc 48 Vdc 1 of 3 date 02/2008 DESCRIPTION: dc/dc converter PART NUMBER: VWRAS2 series Number VWRAS2-D5-D5-SIP VWRAS2-D5-D9-SIP VWRAS2-D5-D12-SIP VWRAS2-D5-D15-SIP VWRAS2-D12-D5-SIP VWRAS2-D12-D9-SIP VWRAS2-D12-D12-SIP VWRAS2-D12-D15-SIP VWRAS2-D24-D5-SIP VWRAS2-D24-D9-SIP VWRAS2-D24-D12-SIP VWRAS2-D24-D15-SIP VWRAS2-D48-D5-SIP VWRAS2-D48-D9-SIP VWRAS2-D48-D12-SIP VWRAS2-D48-D15-SIP page Range 4.5~9.0 Vdc 4.5~9.0 Vdc 4.5~9.0 Vdc 4.5~9.0 Vdc 9.0~18.0 Vdc 9.0~18.0 Vdc 9.0~18.0 Vdc 9.0~18.0 Vdc 18.0~36.0 Vdc 18.0~36.0 Vdc 18.0~36.0 Vdc 18.0~36.0 Vdc 36.0~72.0 Vdc 36.0~72.0 Vdc 36.0~72.0 Vdc 36.0~72.0 Vdc Output Max. 11 Vdc 11 Vdc 11 Vdc 11 Vdc 22 Vdc 22 Vdc 22 Vdc 22 Vdc 40 Vdc 40 Vdc 40 Vdc 40 Vdc 80 Vdc 80 Vdc 80 Vdc 80 Vdc Voltage ±5 Vdc ±9 Vdc ±12 Vdc ±15 Vdc ±5 Vdc ±9 Vdc ±12 Vdc ±15 Vdc ±5 Vdc ±9 Vdc ±12 Vdc ±15 Vdc ±5 Vdc ±9 Vdc ±12 Vdc ±15 Vdc Output Current Max. ±200 mA ±111 mA ±83 mA ±67 mA ±200 mA ±111 mA ±83 mA ±67 mA ±200 mA ±111 mA ±83 mA ±67 mA ±200 mA ±111 mA ±83 mA ±67 mA Min. ±20 mA ±11 mA ±8 mA ±7 mA ±20 mA ±11 mA ±8 mA ±7 mA ±20 mA ±11 mA ±8 mA ±7 mA ±20 mA ±11 mA ±8 mA ±7 mA Package Efficiency 67% 71% 72% 73% 75% 76% 78% 78% 76% 78% 79% 78% 75% 78% 80% 80% Note: 1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified. Output Specifications Item 2W Output power Output voltage accuracy Line Regulation Load Regulation Temperature drift Output ripple& noise Switching frequency Test conditions Refer to recommended circuit Input Voltage from low to high 10% to 100% full load Refer to recommended circuit 20 Hz Bandwidth 100% load, nominal input Min. 0.2 Typ. ±1 ±0.2 ±0.5 35 80K Max. 2 ±3 ±0.5 ±1.0 0.03 100 550K 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 Units W % % % %/°C mVp-p Hz Style SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP rev. page 2 of 3 date 02/2008 DESCRIPTION: dc/dc converter PART NUMBER: VWRAS2 series General Specifications Output short circuit protection Temperature rise at full load Continuous 15°C typ., 35°C max. Cooling Free air convection No-load power consumption 100mW (typical) Operating temperature range -40°C to +85°C Storage temperature range -50°C to +125°C Soldering temperature 300°C (1.5mm from case for 10sec.) Storage humidity range <95% Case material Plastic (UL94-V0) MTBF >1,000,000 hrs. Isolation Specifications Item Isolation Voltage Isolation Resistance Isolation Capacitance Test Conditions Flash tested for 1 min. Test at 500 Vdc Input/Output Min. 1500 1000 Typ. Max. 80 Units Vdc M Ω PF Typical Characteristics R＝Vc/I ( 5 mA TY P) Vc R:KΩ 3 R 2 Vin Recommended circuit It is best to test with full load and not to test without load. To further reduce output ripple, you may increase the external capacitor, choose a capacitor with low ESR, or add external inductor to the circuit as shown on the left. L 6 +Vo Li n Cou t 0V 7 Cin L 1 GND General: Cin: 5V, 12V 100µF 24V, 48V 10µF ~ 47µF Cout:100µF(typ) Lin: 4.7µH ~ 120 µH Lout: 2.2µH ~ 10µH Cou t -Vo 8 Outline Dimensions & Recommended Layout Pattern First Angle Projection 12 3 RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch), diameter:1.00mm Dual Output & Single Output 5 678 +0.50 4.10 0 0.50 12.00 +0.020 ) 0 3 5 (0.866) Note: Unit:mm(inch) Pin section:0.50*0.30mm(0.020*0.012inch) Pin tolerances: +0.10mm( +0.004inch) General tolerances: +0.25mm( +0.010inch) FOOTPRINT DETAILS Pin 1 2 3 5 6 7 8 Dual GND Vin CTRL NC +Vo OV -Vo NC:No Connection 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382 rev. page 3 of 3 date 02/2008 DESCRIPTION: dc/dc converter PART NUMBER: VWRAS2 series - Input current Application Notes: Nominal input voltage range. The input current of the power supply must be sufficient - All of the VWRAS2-SIP Series have been tested according to the following recommended testing to the startup current (Ip) of the DC/DC module circuit before leaving the factory. This series should (Figure 2) be tested under load(Figure 3). If you want to further decrease the input/output ripple, you can increase Input Current(A) capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high(Table 2). Table 2 Input Voltage Range External Capacitor Table Single Vout(VDC) 3.3 Cout(uF) 2200 5 1000 9820 820 680 12 15 24 560 470 Ip Dual Vout(VDC) - Input Voltage (V) Cout(uF) - ±5 ±9 ±560 ±470 ±12 ±330 In order to ensure the product operates ±15 ±270 efficiently and reliably, make sure the specified range - - - Output Load of input voltage is not exceeded. No parallel connection or plug and play. Figure 3 Temperature Derating Graph - NC Terminals Unless otherwise specified, NC terminals of all series are used for converter's interior circuit connection, and are not allowed connection of any external circuit. Operating Temp.( C ) - Remote on/off control (see figure 1) ON: When control pin (CTRL pin 3) open or Ic < 0.5mA, converter will have normal output. OFF: With a 3-10mA input current (Ic) to pin 3, output will be disabled. Under no conditions should input current (Ic) exceed 20mA. The Value of R in Figure 1 can be derived as follows: R= Vc - Vd - 0.65V Ic Vc= Voltage at control input Vd= Diode (D1) voltage drop (.7V voltage drop typical ) Ic= Input Current (5mA recommended disable current) example 1 : Logic circuit — Apply 5V TTL logic signal on Vc to disable output R= 5V - 0.7V - 0.65V = 730 Ω .005A Choose 720Ω resistor example 2 : Short Vin to Vc — Apply 12V on Vc to disable output R= 12V - 0.7V - 0.65V = 2130 Ω .005A Choose 2K Ω resistor 20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382