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:-40°C~+85°C
●
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
MΩ
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
300（PFM）
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 T
A
=25
°C
, 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
20°C (typ)
Free Air Convection
150mW (typical)
-40°C~+85°C
-50°C ~+125°C
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
3.3μF
Cout/μF（max）
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
C
in
100uF
10uF
12V
24V&48V
C
out
(0+70°C)
100uF
(electrolytic
capacitor)
C
out
(-40+85°C)
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
1 2 3
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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