1. Introduzione
This manual provides detailed instructions for the Kadimendium ND0412SA DC-DC Step-up Module. This module is designed to convert a lower DC input voltage (2.6V-5.5V) into a higher, stable DC output voltage (selectable 5V, 6V, 9V, or 12V). It is suitable for various applications requiring a boosted power supply, such as battery-powered equipment, LED motors, and low-power electronic devices.
2. Istruzioni di sicurezza
- Ensure all power sources are disconnected before making any connections to the module.
- Observe correct polarity for input and output connections (Vi, GND, Vo). Incorrect polarity can damage the module and connected devices.
- Non superare il volume di ingresso massimo specificatotage o valori nominali della corrente di uscita.
- Avoid short circuits on the input or output terminals. While the module has short-circuit protection, prolonged short circuits can cause damage.
- Operate the module within its specified temperature range (-40°C to +85°C).
- Keep the module away from moisture, dust, and corrosive environments.
3. Prodotto finitoview
The ND0412SA is a compact and efficient DC-DC boost converter. It features high efficiency (up to 93%) and incorporates multiple protection mechanisms including over current (OCP), over voltage (OVP), short circuit (SCP), and over temperature (OTP) to ensure reliable operation and extend the lifespan of the power supply.

Figura 3.1: in alto view of the ND0412SA module, displaying its compact design and main components.
The module's input terminals are labeled Vi (Volume in ingressotage) and GND (Ground). The output terminals are labeled Vo (Uscita voltage) and GND. The bottom side of the module features solder pads for selecting the desired output voltage.

Figura 3.2: In basso view of the ND0412SA module, showing the output voltage tasti di selezione.
4. Impostazione
Follow these steps to set up your ND0412SA module:
- Volume di uscitatage Selezione: Before connecting power, select your desired output voltage (5V, 6V, 9V, or 12V) by bridging the corresponding solder pads on the bottom of the module (refer to Figure 3.2). For example, to set the output to 12V, bridge the pad labeled '12V'. If no pads are bridged, the module may default to a specific voltage or operate unpredictably.
- Connessione di ingresso: Connect your DC input power source to the Vi and GND input terminals. Ensure the input voltage è compreso nell'intervallo da 2.6 V a 5.5 V.
- Connessione di uscita: Connect your load to the Vo and GND output terminals.
- Advanced Output Voltage and Current Limit Adjustment (Optional): For custom output voltages or current limits, the module allows adjustment via external resistors R1 and R3. This requires soldering and precise resistor values. Refer to Figure 4.1 for details.
- Volume di uscitatage (R1): The R1 resistor sets the output voltage. The formula is R1(KΩ) = 10 * (Vout / 0.6 - 1).
- Current Limit (R3): The R3 resistor programs the peak switch current. The resistor value should be between 10kΩ and 100kΩ. The current limit will be set from 2.5A to 0.5A. The formula is Iin = 48000 / R3.

Figure 4.1: Diagram for R1 (output voltage) and R3 (current limit) resistor settings.
5. Istruzioni per l'uso
Una volta che il modulo è cablato correttamente e il volume di uscitatage is selected, apply power to the input terminals. The module will automatically boost the input voltage to the selected output voltage. Monitor the output voltage and current to ensure it meets your application's requirements and stays within the module's specifications.
6. Manutenzione
- Mantenere il modulo pulito e libero da polvere e detriti.
- Ensure adequate ventilation, especially when operating at higher loads, to prevent overheating.
- Controllare regolarmente i collegamenti per verificare che non siano allentati o corrosi.
- Avoid physical shock or excessive vibration to the module.
7. Risoluzione Dei Problemi
- Nessuna uscita Voltage:
- Controllare l'input voltage per assicurarsi che sia compreso nell'intervallo 2.6V-5.5V.
- Verify input and output connections for correct polarity and secure contact.
- Assicurare il volume di uscitatage selection pads are correctly bridged.
- Check for any short circuits on the output. The module's SCP may have activated.
- Volume di uscita erratotage:
- Re-verify the output voltage tasti di selezione.
- If using custom R1 adjustment, double-check resistor value and soldering.
- Surriscaldamento del modulo:
- Ridurre il carico collegato all'uscita.
- Ensure proper ventilation around the module.
- Controllare se l'ingresso voltage is too low, causing the module to draw excessive current.
- Funzionamento intermittente:
- Check for loose connections or poor soldering.
- Ensure the module is not exposed to excessive electromagnetic interference.
8. Specifiche
| Parametro | Valore |
|---|---|
| Modello | ND0412SA |
| Ingresso volumetage Gamma | DC 2.6V ~ 5.5V |
| Volume di uscitatage Opzioni | DC 5V, 6V, 9V, 12V (selectable) |
| Potenza massima in uscita | 7W |
| Efficienza | Fino al 93% |
| Frequenza operativa | 1 MHz |
| Dimensioni (circa) | 21 x 11 x 4mm / 0.8 x 0.4 x 0.2in (without pin) |
| Temperatura di esercizio | Temperatura di esercizio -40°C ~ +85°C |
| Caratteristiche di protezione | Over Current (OCP), Over Voltage (OVP), Short Circuit (SCP), Over Temperature (OTP) |
Typical Output Current (Reference Only):
| Volume di uscitatage | Ingresso volumetage Gamma | Max Corrente di uscita |
|---|---|---|
| 5V | DC 2.6 ~ 4.5V | 1300mA |
| 6V | DC 2.6 ~ 5.5V | 1200mA |
| 9V | DC 2.6 ~ 5.5V | 800mA |
| 12V | DC 2.6 ~ 5.5V | 600mA |
9. Garanzia e supporto
For warranty information or technical support, please refer to the product's purchase documentation or contact the retailer. Keep your proof of purchase for any warranty claims.