Factory direct sales High-power low-voltage input boost module(Constant voltage and constant current, with USB)
1. Baby highlights:
1.1. Special structure, support 2V low voltage input, no fear of low voltage, especially suitable for 18650 high-power boost;
2.2. High power, the maximum input current can reach 15A, and the output current can reach 4A; when 3.7V input, the output power can reach 45W, when 12V input, the output power can reach 80W;
2.3. Perfect protection mechanism, input reverse connection anti-burning, input over-current protection, input under-voltage protection, output anti-backflow, constant voltage and constant current, can be directly connected to the battery for charging;
2.4. High efficiency, dual-stage filtering and low ripple, reliable and stable performance!
2. Product parameters:
Input voltage: 2 ~ 24V
OutputVoltage: 3 ~ 30V, note that the USB port is directly connected to the output port, it is an adjustable voltage port 3-30V, not a 5V port! ! !
Input Current: Maximum 15A
Output current: Max 4A(The CC positioner is a current-limiting potentiometer. When the current limit is reached, the CC indicator light is on and enters the constant current mode; BOOST boost structure, the output terminal can not be directly short-circuited to adjust the limited current, and it can be adjusted to the minimum counterclockwise first, and then connected to the battery Then turn clockwise to increase the current)
Output Power: Under 3.7V input, the maximum is 45W; under 12V input, the maximumPower 80W;
Output ripple: Two-stage filtering, low ripple output!
Conversion efficiency: 82~95%
Input overcurrent protection:15A fuse
Input anti-reverse protection:high efficiencyMOS type
Input undervoltage protection:ForTo prevent the over-discharge of the lithium battery, please weld a 5.6k resistance resistor at R22 at the lower left corner of the module, start when it is higher than 3.5V, and stop when it is lower than 3V. The factory defaults to work at 2V voltage. If you need other levels of under-voltage protection threshold, you can calculate it yourself or contact customer service. The calculation formula is R22=12500/(U-0.75v) ohm, where U is the desired under-voltage protection threshold voltage(Shutdown voltage).
Board size:80*31.5*20.5mm
weight:36g
3. Matters needing attention:
3.1.BOOST boost structure, adjust the current limit and can not directly short-circuit the output terminal. You can first adjust the CC potentiometer to the minimum counterclockwise, and then turn it clockwise to increase the current after connecting the battery.
3.2. BOOST boost structure, the minimum output voltage is approximately equal to the input voltage, so the output current cannot be set from 0, the minimum output current is approximately the input voltage divided by the load resistance value.
3.3. Module input IN- is forbidden to short-circuit with output OUT-, otherwise the constant current function will be invalid.
3.4. Please ensure that the power of the power supply is always greater than the power required by the output load. When the module is severely hot, please reduce the power!
3.5. The USB output port is not a 5V output. It is directly connected to the output port. The maximum voltage can be adjusted to 30V. For example, to charge mobile phones and other digital products or compatible with your other valuable instruments, please verify the USB output voltage first.We do not guarantee any damage caused, we only have the ability to pay for the module and freight.Please read the product description carefully before use, damage caused by improper use will not be compensated.