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rev. page date 1 of 3
01/2008
PART NUMBER: VWRBS2 series
DESCRIPTION: dc/dc converter
Description
Designed to convert a wide input voltage range into an isolated regulated voltage, the VWRBS2-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... Model Number VWRBS2-D5-S3-SIP VWRBS2-D5-S5-SIP VWRBS2-D5-S9-SIP VWRBS2-D5-S12-SIP VWRBS2-D5-S15-SIP VWRBS2-D5-S24-SIP VWRBS2-D12-S3-SIP VWRBS2-D12-S5-SIP VWRBS2-D12-S9-SIP VWRBS2-D12-S12-SIP VWRBS2-D12-S15-SIP VWRBS2-D12-S24-SIP VWRBS2-D24-S3-SIP VWRBS2-D24-S5-SIP VWRBS2-D24-S9-SIP VWRBS2-D24-S12-SIP VWRBS2-D24-S15-SIP VWRBS2-D24-S24-SIP VWRBS2-D48-S3-SIP VWRBS2-D48-S5-SIP VWRBS2-D48-S9-SIP VWRBS2-D48-S12-SIP VWRBS2-D48-S15-SIP VWRBS2-D48-S24-SIP Note:
Features
*Wide (2:1) input range *High efficiency to 82% *Regulated *Single voltage output *I/O Isolation 1500VDC *No heatsink required *Short circuit protection *Remote on/off *MTBF >1,000,000 hrs *Temperature range: -40C~+85C Input Voltage Range 4.5~9.0 Vdc 4.5~9.0 Vdc 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 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 18.0~36.0 Vdc 18.0~36.0 Vdc 36.0~72.0 Vdc 36.0~72.0 36.0~72.0 36.0~72.0 36.0~72.0 36.0~72.0 Vdc Vdc Vdc Vdc Vdc Output Voltage 3.3 Vdc 5 Vdc 9 Vdc 12 Vdc 15 Vdc 24 Vdc 3.3 Vdc 5 Vdc 9 Vdc 12 Vdc 15 Vdc 24 Vdc 3.3 Vdc 5 Vdc 9 Vdc 12 Vdc 15 Vdc 24 Vdc 3.3 Vdc 5 Vdc 9 Vdc 12 Vdc 15 Vdc 24 Vdc Output Current Max. Min. 500 mA 400 mA 222 mA 167 mA 133 mA 80 mA 500 mA 400 mA 222 mA 167 mA 133 mA 80 mA 500 mA 400 mA 222 mA 167 mA 133 mA 80 mA 500 mA 400 mA 222 mA 167 mA 133 mA 80 mA 50 mA 40 mA 22 mA 16 mA 13 mA 8 mA 50 mA 40 mA 22 mA 16 mA 13 mA 8 mA 50 mA 40 mA 22 mA 16 mA 13 mA 8 mA 50 mA 40 mA 22 mA 16 mA 13 mA 8 mA Package Style SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP SIP
Nominal 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 5 Vdc 12 Vdc 12 Vdc 12 Vdc 12 Vdc 12 Vdc 12 Vdc 24 Vdc 24 Vdc 24 Vdc 24 Vdc 24 Vdc 24 Vdc 48 Vdc 48 48 48 48 48 Vdc Vdc Vdc Vdc Vdc
Max. 11 Vdc 11 Vdc 11 Vdc 11 Vdc 11 Vdc 11 Vdc 22 Vdc 22 Vdc 22 Vdc 22 Vdc 22 Vdc 22 Vdc 40 Vdc 40 Vdc 40 Vdc 40 Vdc 40 Vdc 40 Vdc 80 Vdc 80 80 80 80 80 Vdc Vdc Vdc Vdc Vdc
Efficiency 65% 68% 72% 73% 72% 73% 72% 77% 79% 81% 80% 80% 72% 77% 79% 81% 80% 80% 71% 75% 79% 80% 79% 80%
1. All specifications measured at TA=25C, 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 Units W % % % %/C mVp-p Hz
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
rev. page date 2 of 3
01/2008
PART NUMBER: VWRBS2 series
DESCRIPTION: dc/dc converter
General Specifications
Output short circuit protection Temperature rise at full load Cooling No-load power consumption Operating temperature range Storage temperature range Soldering temperature Storage humidity range Case material MTBF Continuous 15C typ., 35C max. Free air convection 100mW (typical) -40C to +85C -50C to +125C 300C (1.5mm from case for 10sec.) <95% Plastic (UL94-V0) >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. Units Vdc M PF
80
Typical Characteristics
D1 Ic R Li n 2 Cin G ND 1 7 3 6 8 Cs Co ut 0V +Vo
Vc Vi n
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. General: Cin: 5V, 12V 100F 24V, 48V 10F ~ 47F Cout:100F(typ) Lin: 4.7H ~ 120 H Lout: 2.2H ~ 10H
Single Output
Figure 1
Outline Dimensions & Recommended Layout Pattern
First Angle Projection
123
5678
RECOMMENDED FOOTPRINT Top view,grid:2.54mm(0.1inch), diameter:1.00mm Dual Output & Single Output
35
+0.020 ) 0
(0.866) 4.10 0
+0.50
12.00
FOOTPRINT DETAILS Pin 1 2 3 5 6 7 8 Single GND Vin CTRL NC +Vo OV CS
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)
0.50
NC:No Connection
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382
rev. page date 3 of 3
01/2008
PART NUMBER: VWRBS2 series
DESCRIPTION: dc/dc converter
Application Notes:
- All of the VWRBS2-SIP Series have been tested according to the following recommended testing circuit before leaving the factory. This series should be tested under load(Figure 1). If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high(Table 2).
- Input current Nominal input voltage range. The input current of the power supply must be sufficient to the startup current (Ip) of the DC/DC module (Figure 2)
Input Current(A)
Ip
Input Voltage Range
External Capacitor Table
Single Vout(VDC) 3.3 5 9 12 15 24 Cout(uF) 2200 1000 820 680 560 470 Dual Vout(VDC) 5 9 12 15 Cout(uF) 560 470 330 270 -
Input Voltage (V)
- Output Load In order to ensure the product operates efficiently and reliably, make sure the specified range of input voltage is not exceeded. No parallel connection or plug and play.
Table 2
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 .005A
Choose 720 resistor
example 2 : Short Vin to Vc -- Apply 12V on Vc to disable output R= 12V - 0.7V - 0.65V = 2130 .005A Choose 2K resistor
20050 SW 112th Ave. Tualatin, Oregon 97062 phone 503.612.2300 fax 503.612.2382

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