MSKW2000 Minmax Technology Co., Ltd., MSKW2000 Datasheet - Page 6

• Manufacturer Part Number: MSKW2000
• Description: 5w 2 1 Wide Input Range Smd, Single & Dual Output Dc/dc Converters
• Manufacturer: Minmax Technology Co., Ltd.

Input Reflected-Ripple Current Test Setup
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 KHz) to
simulate source impedance.
module, measurement bandwidth is 0-500 KHz.
Peak-to-Peak Output Noise Measurement Test
socket, measurement bandwidth is 0-20 MHz. Position the
load between 50 mm and 75 mm from the DC/DC Converter.
Design & Feature Considerations
Input Source I Remote On/Off
logic high voltage on the remote on/off pin, and off during a
logic low.
a switch to control the voltage between the on/off terminal and
the -Vin terminal.
during a logic low is 300 uA.
= 2.5 to 5.5V is 200uA or open.
Test Configurations
REV:3 2008/06
Input reflected-ripple current is measured with a inductor
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of the
Use a Cout 0.47uF ceramic capacitor.
Scope measurement should be made by using a BNC
Positive logic remote on/off turns the module on during a
To turn the power module on and off, the user must supply
The switch can be an open collector or equivalent.
A logic low is -0.7V to 0.8V.
A logic high is 2.5V to 5.5V.
The maximum sink current of the switch at on/off terminal
The maximum sink current of the switch at on/off terminal
+Vin
+Vin
Dual Output
-Vin
-Vin
Single Output
Converter
To Oscilloscope
DC / DC
+
Converter
Battery
DC / DC
+
+Out
Com.
Cin
+Out
-Out
-Out
Lin
Copper Strip
Copper Strip
Current
Probe
Cout
Cout
Cout
+Vin
-Vin
Converter
DC / DC
+Out
-Out
Scope
Scope
Scope
Resistive
Resistive
Load
Load
Load
MINMAX
Maximum Capacitive Load
connected capacitance at the output.
mode during start-up, affecting the ramp-up and the startup
time.
maximum capacitive load for dual outputs and 680
capacitive load for single outputs.
Overcurrent Protection
the unit is equipped with internal current limiting circuitry and
can endure current limiting for an unlimited duration. At the
point of current-limit inception, the unit shifts from voltage
control to current control. The unit operates normally once the
output current is brought back into its specified range.
Input Source Impedance
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power module.
output loading is high, it may be necessary to use a capacitor
at the input to ensure startup.
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 3.3uF for the 12V input devices and a
2.2uF for the 24V and 48V devices.
The MSKW2000 series has limitation of maximum
The power module may be operated in current limiting
For optimum performance we recommend 100uF
The maximum capacitance can be found in the data sheet.
To provide protection in a fault (output overload) condition,
The power module should be connected to a low
In applications where power is supplied over long lines and
Capacitor mounted close to the power module helps
DC Power
Source
MSKW2000 Series
+
-
+
Cin
+Vin
-Vin
Converter
DC / DC
+Out
-Out
u
Load
F
6