Constant Current Constant Voltage Adjustable Lithium Charging Module LCD With Display Automatic Lifting Pressure DC Boar

Type:PCI-E Riser
Origin:Mainland China
Certification:NONE

XY-SJVA-4X
4A voltage rise and fall module (constant voltage and constant current LCD version)
1. Baby highlights:
1.1. LCD can display input and output voltage, output current and output power;
1.2. The input terminal is protected against reverse connection, and the reverse connection will not burn;
1.3. It can boost and depressurize, the output voltage can be adjusted arbitrarily from 0.5 to 30V, and the limiting current can be adjusted arbitrarily from 0 to 4a;
1.4. The output end is anti backflow, and there is no need to add an anti backflow diode when charging the ;
1.5. Press the key to control the on / off state of the output terminal, and the power on can be set to on or off by default;
1.6. The voltage rise and fall chip is used as the main controller, the external 60V 75A MOS tube is used as the switch tube, and the double 60V 5A SS56 Schottky rectifier is used. The 60V withstand voltage value is better than the immature scheme xl6009 / lm2577 on the market (the withstand voltage value of many devices is insufficient, and the withstand voltage value of MOS tube and Schottky diode must be greater than the input plus input voltage value);
1.7. Small output ripple and LC filtering;
1.8. Including heat sink, send module to support isolation column.
2. Product parameters:
Input voltage: 5.5-30v (when the input voltage is 5V, the voltage can also be increased or decreased, but the voltage and current measurement is inaccurate; when it is lower than 4.7V, undervoltage protection is available)
Output voltage: 0.5-30v
Output current: it can work stably for a long time. It can reach 4A under 3a and enhanced heat dissipation
Output power: natural heat dissipation 35W, enhanced heat dissipation 50W
Voltage display resolution: 0.05v
Current display resolution: 0.005a
Conversion efficiency: about 88%
Soft start: Yes (it may fail when the high-power loaded module is started)
Input reverse connection protection: Yes
Anti backflow at output end: Yes
Short circuit protection: Yes
Operating frequency: 180khz
Dimensions: L * w * h
66*48*21mm
Mounting hole: diameter 4mm
Weight: 46g
3. Function Description:
3.1. The module has two keys: in / out and on / off: the in / out key switches the display of input voltage and output voltage, and long press to switch the display of output current and output power; The on / off key controls the output on or off. Long press to set the default output state of the next power on to be on or off.
3.2. CC is the current setting potentiometer, which rotates clockwise to increase the set current. When the load current reaches the set current, it enters the constant current state, and the CC constant current indicator (red) lights up; The CV on the right is the voltage setting potentiometer, which can be rotated clockwise to increase the output voltage. The on indicator is the output status indicator. It is on when there is voltage at the output end, otherwise it is off.