1. Safety Precautions
- Ensure the power is turned off before installation.
- Use proper ESD protection when handling the module.
- Avoid exceeding the input voltage range to prevent permanent damage.
- Maintain the baseplate temperature within the specified operating range.
2. Mechanical Installation
2.1 Mounting the Module
- Mount the module on a heat-dissipating surface using screws.
- Apply thermal grease or thermal pad between the module and the heatsink.
- Use M3 screws and tighten them to the recommended torque (typically 0.4-0.6 Nm).
+-------------------------------+
| DC-DC Brick Module |
+-------------------------------+
| Thermal Grease / Pad |
+-------------------------------+
| Heatsink |
+-------------------------------+
| Mounting Base |
+-------------------------------+
3. Electrical Installation
3.1 Pin Definition and Wiring
The pin configuration may vary by manufacturer, but typically includes:
Pin No. Pin Name Function
1 -Vin Negative input terminal
2 +Vin Positive input terminal
3 CNT Remote control (Enable/Disable)
4 NC No connection
5-7 Vout+ Positive output terminal
8-10 Vout- Negative output terminal
11 -Sense Remote sense negative
12 +Sense Remote sense positive
13 TRIM Output voltage adjustment
14 PC Parallel current sharing
15 IOG Output status signal
16 AUX Auxiliary power
ASCII Diagram: Basic Wiring
Input Side Module Output Side
+Vin ---------------- [ +Vin Vout+ ] ---------------- +Load
-Vin ---------------- [ -Vin Vout- ] ---------------- -Load
[ Sense+ Sense- ] (Optional)
[ TRIM ] (Voltage Adjustment)
3.2 Recommended Input Circuit
- Install a fuse in series with the input to protect against overcurrent.
- Place a high-value electrolytic capacitor at the input for surge voltage suppression.
- Use a MOV (Metal Oxide Varistor) for transient protection
Vin+ ----+--- FUSE ----+---- DC-DC Module
| |
MOV CAP (Electrolytic)
| |
Vin- ---- +----- -------- +
3.3 Output Voltage Adjustment (TRIM Function)
- Use an external Rup or Rdown resistor to adjust the output voltage
TRIM Pin
|
+----+----+
| |
Rup Rdown
| |
GND Vout+
3.4 Remote Sensing (Sense+ and Sense-)
- If not used, short Sense+ to Vout+ and Sense- to Vout-.
- If used, connect Sense+ and Sense- close to the load to compensate for voltage drop.
[ DC-DC Module ]
| |
Sense+ Sense-
| |
Vout+ Vout-
| |
+Load -Load
4. Cooling Requirements
- Conduction Cooling: Attach the module to a metal plate or heatsink.
- Forced Air Cooling: Use a fan with airflow direction aligned to the cooling fins.
ASCII Diagram: Cooling Methods
Conduction Cooling
[ Brick Module ]
| | | | | (Attached to Heatsink)
Forced Air Cooling
---> [ Brick Module ] ---> (Airflow Direction)
Recommended airflow >1.5m/s for high-power applications.
Ensure that the baseplate temperature does not exceed 105°C.