Step Up + Down, Voltage + Current 4A:
Specifications:
Model: SK35L
Input voltage: DC 5-30V (Less than 4.7V with under-voltage protection LVP, Recommended to use 7V and higher Input)
Output Voltage: DC 0.6-30V
Output Current: 0-4A
Output Power: 35W under natural heat dissipation and 50W under air cooling
Voltage Accuracy: ±0.5% +1 word, resolution: 0.01V, self-calibration
Current Accuracy: ±0.8% +3 words, resolution: 0.001A, self-calibration
Conversion Efficiency: about 88%
Soft Start: Yes
Input Reverse Connection Protection: Yes, Reverse Connection No Burning
Output anti-backfilling: Yes, it can be directly connected to the battery
Output Short Circuit Protection: Yes, it can be directly connected to the output terminal
Temperature Protection (OTP): Yes, 100 Deg C
Working Frequency: 180KHZ
Used as a general boost-and-drop power supply with over-current protection capability
Use as battery charger or Use as a constant current drive module for high power LED
Key Functions:
Press the UP/DOWN key briefly, and the voltage will be adjusted by default. Long press (fast increase / decrease) is supported.
Long press the SET button for 1 second to adjust the constant current value (current limit value);
Set and CV flash when adjusting voltage and set and CC flash when adjusting current.
Press the SET key briefly to switch the display current A / power W / capacity Ah / energy WH / time h;
Press the ON/OFF key briefly to turn ON/OFF the power output;
Long press the ON/OFF button for 2 seconds to switch the display input and output voltage.
This product has locking function:
Long press the set button for 5 seconds to lock the set voltage and current to prevent misoperation. After locking, press and hold the set key for 5 seconds to unlock.
Setting up interface & operation instructions:
1. Press SET button for 3 seconds to enter the setting interface.
2. The parameters are adjusted by UP/DOWN keys to support long press (fast increase/decrease) and short press SET keys to switch the parameters to be adjusted.
3. In the maximum capacity (OAH)/maximum energy (OPH)/maximum running time (OHP) interface, press the "ON/OFF" button to select the opening or closing of the corresponding function, and if closed, display "--";
4. In the maximum capacity (OAH)/maximum energy (OPH) parameter interface, long press the ON/OFF button to select the range of capacity (9.999Ah/99.99Ah/9999999Ah, 9.999Wh/99.999Wh/99999999Wh);
5. After setting the parameters, press and hold SET button to exit the setting interface and save the parameters automatically.
Note: After product protection, output will be turned off, LCD will display the corresponding protection code (LVP/OVP/OCP/OPP/OAH/OPH/OHP) power chip itself also has various protection, if the chip itself is protected, OEP will be displayed.
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