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RSB_T-3W Series
WIDE INPUT ISOLATED & REGULATED 3W SINGLE OUTPUT SMD PACKAGE
multi-country patent protection RoHS
FEATURES
Wide (2:1) Input Range Operating Temperature:-40C~+85C 1500VDC Isolation UL94-V0 Package No Heat Sink Required Industry Standard Pinout MTBF>1,000,000 hours Custom Service Available RoHS Compliance
PRODUCT PROGRAM
Part Number Nominal RSB1205T-3W RSB1209T-3W RSB1212T-3W RSB1215T-3W RSB2405T-3W RSB2409T-3W RSB2412T-3W RSB2415T-3W RSB4803T-3W RSB4805T-3W RSB4809T-3W RSB4812T-3W RSB4815T-3W 48 36~72 80 24 18~36 40 12 9~18 22 Input Voltage (VDC) Range Max* Voltage (VDC) 5 9 12 15 5 9 12 15 3.3 5 9 12 15 Output Current(mA) Max 600 330 250 200 600 330 250 200 909 600 330 250 200 Min 60 33 25 20 60 33 25 20 90 60 33 25 20 75 78 79 78 77 80 82 81 72 75 78 81 83 Efficiency (%, Typ)
APPLICATIONS
The RSB_T-3W Series are specially designed for applications where a wide range input voltage power supplies are isolated from the input power supply in a distributed power supply system on a circuit board. These products apply to: 1) Where the voltage of the input power supply is wide range (voltage range: 2:1); 2) Where isolation is necessary between input and output (isolation voltage =1500VDC); 3) Where the regulation of the output voltage and the output ripple noise are demanded.
ISOLATION SPECIFICATIONS
Item Isolation voltage Isolation resistance Test conditions Flash tested for 60 seconds Test at 500VDC Min 1500 1000 Typ Max Units VDC M
MODEL SELECTION
RSB2405T-3W
Rated Power Package Style Output Voltage Input Voltage Product Series
OUTPUT SPECIFICATIONS
Item 3W output power Output Voltage accuracy Load regulation Line regulation Temperature drift (Vout) Ripple Noise Switching frequency Test conditions See below products program Refer to recommended circuit From 10% to 100% load Input Voltage From Low to High Refer to recommended circuit 20MHz bandwidth 20MHz bandwidth 100% load, nominal input voltage Min 0.3 Max 3 1 2 0.5 0.75 0.2 0.5 0.03 50 50 100 300PFM Typ Units W % %/C mVp-p KHz
MORNSUN Science& Technology Ltd. Address: 2th floor 6th building, Huangzhou Industrial District, Guangzhou, China Tel: 86-20-38601850 Fax: 86-20-38601272 Http://www.mornsun-power.com
Note: 1.All specifications measured at TA=25C, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 2.See below recommended circuits for more details.
MORNSUN reserves the copyright
For any design change and upgrade, we will not make any prior notification
A/1-2007
Page 1 of 2
COMMON SPECIFICATIONS
Output Short Circuit Protection Temperature Rise at Full Load Cooling No-load Power Consumption Operating Temperature Range Storage Temperature Range Reflow Solding Profile*** Storage Humidity Range Case Material MTBF ***220 for 90sec,max Continuous, Automatic Recovery 20C (typ) Free Air Convection 150mW (typical) -40C~+85C -50C ~+125C Peak Temp 260(10sec,max) 95% Plastic (UL94-V0) >1,000,000 hours
Recommended Circuit
All the RSB_T-3W Series have been tested according to the following recommended testing circuit before leaving factory. This series should be tested under load(Figure 1).
Vin
Cin
Vout
DC
DC
0V
GND
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 1) Extemal Capacitor Table(Table 1)
Vout 5V 9V 12V 15V 3.3F Cout/Fmax 1000 680 470 220 2200
TYPICAL CHARECTERISTICS
Temperature Derating Graph
External Capacitor
Operating Temp.( C )
FOOTPRINT DETAILS
Top View Pin
23,24 1,2 13 15 Others
Although this series of DC/DC converter can work without external capacitor, in order to keep an optimum performance, however, it needs external capacitor. (Table 2) External Capacitor Table (Table 2)
Vin
Function
Vin GND +Vo 0V NC
Cin 100uF 10uF
12V 24V&48V
Cout (0+70C) 100uF (electrolytic capacitor)
Cout (-40+85C) 47uF (tantalum capacitor)
Input Current
When it is used in unregulated power supply, be sure that the fluctuating range of the power supply and the rippled voltage do not exceed the module standard. Input current of power supply should afford the startup current of this kind of DC/DC module (Figure 2)
Input Current(A)
OUTLINE DIMENSIONS
(1.27)
10.5
15 14 13
16.1(0.63)
(0.74)
24 23 22
Ip
123
10 1112
18.8
14.4
2.18
(0.085)
17.78
(0.7)
0.5
(0.02)
0.27
Input Voltage Range
Input Voltage (V)
(Top View)
(Side View)
Note: Unit: mm(inch); Tolerance: 0.25mm; All Pins on a 2.54mm pitch;
APPLICATION NOTE
Requirement on Output Load
To ensure this module operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load (namely full load). During operation, make sure the specified range of input voltage is not exceeded, the minimum out put load is not less than 10% Of the full load, If the actual load is less below the specified minimum load, the output ripple of this type of DC/DC converter may increase drastically. If the actual output power from the load in your circuit is very small, please connect a resistor with proper resistance at the output end to in parallel to increase the load, or use our company's other products with a lower rated output power.
The products cannot be used in parallel and in plug and play.
MORNSUN reserves the copyright
For any design change and upgrade, we will not make any prior notification
A/1-2007
Page 2 of 2

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