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MKW5034 Datasheet(PDF) 5 Page - Minmax Technology Co., Ltd.

Part # MKW5034
Description  DC/DC CONVERTER 30W
Download  6 Pages
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Manufacturer  MINMAX [Minmax Technology Co., Ltd.]
Direct Link  http://www.minmax.com.tw
Logo MINMAX - Minmax Technology Co., Ltd.

MKW5034 Datasheet(HTML) 5 Page - Minmax Technology Co., Ltd.

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MKW5000 SERIES
DC/DC CONVERTER 30W
E-mail:sales@minmax.com.tw
Tel:886-6-2923150
2016/06/27 REV:6
Page 5 of 6
®
Test Setup
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω at 100 KHz) to simulate source impedance.
Capacitor Cin, offsets possible battery impedance. Current ripple is measured at the input terminals of the module, measurement bandwidth is 0-500 KHz.
+Out
-Out
+Vin
-Vin
DC / DC
Converter
Load
Battery
+
Lin
+
Cin
To Oscilloscope
Current
Probe
Peak-to-Peak Output Noise Measurement Test
Use a Cout 1.0μF ceramic capacitor. 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.
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Copper Strip
+Out
-Out
+Vin
-Vin
Dual Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Com.
Scope
Cout
Copper Strip
Copper Strip
Technical Notes
Remote On/Off
Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and off during a logic low. To turn the power module on and off,
the user must supply a switch to control the voltage between the on/off terminal and the -Vin terminal. The switch can be an open collector or equivalent.
A logic low is -1V to 1.0V. A logic high is 2.5V to 100V. The maximum sink current at the on/off terminal (Pin 3) during a logic low is -100μA.
The maximum allowable leakage current of a switch connected to the on/off terminal (Pin 3) at logic high (2.5V to 100V) is 5μA.
Output Voltage Trim
Output voltage trim allows the user to increase or decrease the output voltage set point of a module.
The output voltage can be adjusted by placing an external resistor (Radj) between the Trim and +Vout or -Vout terminals. By adjusting Radj, the output voltage can be
change by ±10% of the nominal output voltage.
+Out
-Out
+Vin
-Vin
Trim Up
Enable
Trim
Trim Down
10K
Trim
Up/Down
A 10K, 1 or 10 Turn trimpot is usually specified for continuous trimming. Trim pin may be safely left floating if it is not used.
Connecting the external resistor (Radj-up) between the Trim and -Vout pins increases the output voltage to set the point as defined in the following equation:
(
)
(
)
Vout
-
Vadj
Vadj
×
30
-
Vout
×
33
=
up
-
Radj
Connecting the external resistor (Radj-down) between the Trim and +Vout pins decreases the output voltage set point as defined in the following equation:
(
) (
)
Vadj
-
Vout
Vout
×
33
-
Vadj
×
667
.
36
=
down
-
Radj
Vout: Nominal Output Voltage Vadj: Adjusted Output Voltage Units: VDC/ KΩ
Overload Protection
To provide protection in a fault (output overload) condition, 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.
Overvoltage Protection
The output overvoltage clamp consists of control circuitry, which is independent of the primary regulation loop, that monitors the voltage on the output terminals.
The control loop of the clamp has a higher voltage set point than the primary loop. This provides a redundant voltage control that reduces the risk of output
overvoltage. The OVP level can be found in the output data.


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