we energize electronics!
1.0W Regulated
Single & Dual Output
DC/DC-Converter
an acal group company
Connection example
11. MCU (Master Control Unit)
The MCU Pin Voltage is referenced to -Vin(Pin 1)
ON:0 ~ 0.8VDC Max.
(Short circuit Pin 1 and Pin 3) or open circuit
OFF: 4.5 to 15VDC Max.(or 3.5mA to 15mA Max.)(via R1、D1)
OFF idle current: 5mA typ
1K
1N4148
CONVERTER
MCU
PIN 3
R1
D1
12. Input filter components are be required to help meet conducted
emission class A, which application refer to the EMI Filter of design & test configuration.
13. An external filter capacitor is required if the module has to meet IEC61000-4-4 and IEC61000-4-5.
The filter capacitor RSG suggest: Nippon - chemi - con KY series, 220uF/100V.
Input Reflected Ripple Current Test Step
Output Ripple & Noise Measurement Test
Input reflected ripple current is measured through
a source inductor Lin(12uH) and a source capacitor
Cin(47uF, ESR<1.0© at 100KHz) at nominal input and
full load.
The Scope measurement bandwidth is 20MHz.
+Vout
+Vout
+Vin
Lin
Current
Probe
DC/DC
Converter
DC/DC
Converter
Load
Scope
Load
Cin
-Vout
-Vin
-Vout
EMI Filter
Input filter components (C1, L) are used to help
meet conducted emissions requirement for the module.
These components should be mounted as close as
possible to the module; and all leads should be
minimized to decrease radiated noise.
+Vout
+Vin
L
DC/DC
Converter
C1
L
Load
C1
100uF/100V 12uH
RS5/RD5 -1W
-Vin
-Vout
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