參數(shù)資料
型號： DS202R
元件分類： 電源模塊
英文描述： DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT, MODULE-24
文件頁數(shù)： 4/8頁
文件大?。?/td> 259K
代理商： DS202R
4
Test Configurations
Input Reflected-Ripple Current Test
Setup
+Out
-Out
+Vin
-Vin
DC / DC
Converter
Load
Battery
+
Lin
+
Cin
To Oscilloscope
Current
Probe
Input reflected-ripple current is measured with a
inductor Lin (4.7uH) and Cin (220uF, ESR < 1.0
at
100 KHz) to simulate source impedance. Capacitor
Cin is to offset possible battery impedance. Current
ripple is measured at the input terminals of the
module and measurement bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement
Scope measurement should be made by using a
BNC socket, measurement bandwidth is 0-20 MHz.
Position the load between 50 mm and 75 mm from
the DC/DC Converter. A Cout of 0.33uF ceramic
capacitor is placed between the terminals shown
below.
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
+Out
-Out
+Vin
-Vin
Dual Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Com.
Scope
Cout
Design & Feature Considerations
The DS200R circuit block diagrams are shown in
Figures 5 and 6.
Figure 5:
Block diagram of DS200R single output
modules.
Figure 6:
Block diagram of DS200R dual output
modules.
Input Source Impedance
The power module should be connected to a low ac-
impedance input source. Highly inductive source
impedances can affect the stability of the power
module.
+
+Out
-Out
+Vin
-Vin
DC / DC
Converter
Load
DC Power
Source
+
-
Cin
In applications where power is supplied over long lines
and output loading is high, it may be necessary to use
a capacitor at the input to ensure startup.
Capacitor mounted close to the input of the power
module helps ensure stability of the unit, it is
recommended to use a good quality low Equivalent
Series Resistance (ESR < 1.0
at 100 KHz) capacitor
of a 2.2uF for the 5V input devices, a 1.0uF for the
12V input devices, and a 0.47uF for the 24V and 48V
devices.
相關(guān)PDF資料
PDF描述
DS2E05 DC-DC REG PWR SUPPLY MODULE
DSAU112 DC-DC REG PWR SUPPLY MODULE
DSAU326 DC-DC REG PWR SUPPLY MODULE
DSHU102 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
DSN9NC51C104Q55A 1 FUNCTIONS, 16 V, 7 A, DATA LINE FILTER
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