产品特点 FEATURES

1 Ultra low noise (typ 8mVpp ripple noise) suitable for analog and analog-digital hybrid circuits

2 Adjustable output voltage: ±11.4V to ±15V (via external resistor or shorting Vadj and -Vout terminals)

3 ON/OFF control function (output ON when open, OFF when shorted between -Vin and ON/OFF pins)

4 Dual power supply usable as single power supply

5 High withstand voltage: AC500V between input/output, input/case, output/case

6 Over Current Protection Circuit (auto-restart type, activates at ≥105% rated load)

7 No tantalum capacitor or electrolytic capacitor used

8 Metal shielded to reduce electromagnetic interference

9 Compact surface mount package: size 23.2×21.1×9.7mm, weight 5.4g

10 No heat sink needed under normal operating conditions

11 Wide operating temperature range: -40°C to +85°C (temperature derating required)

12 RoHS Compliant

13 High efficiency: typ 83% at rated input/output

14 Input voltage range:9-18Vdc; rated output voltage:±12Vdc; output current:250mA per channel

使用场景 APPLICATIONS

1 Precision measurement instruments: Power supply for analog signal processing modules (e.g., sensor amplifiers) requiring low noise to ensure measurement accuracy

2 Communication equipment: Mixed analog-digital circuits in routers, modems, or wireless transceivers where stable, low-noise power is critical for signal integrity

3 Industrial control systems: Embedded systems with hybrid circuits (microcontrollers + analog sensors) needing reliable power in wide temperature environments

4 Office automation equipment: Internal circuits of printers, scanners, or copiers that demand compact, efficient power conversion

5 Test and measurement devices: Modules requiring adjustable dual power supplies for testing different circuit configurations

注意事项 PRECAUTIONS

1 Do not use this product in medical, nuclear, or railway equipment (where failure could directly impact human life or property) without prior consultation with Bellnix

2 This product is not suitable for parallel operation; serial operation is allowed but limit output current to the smaller rated current of connected supplies

3 Mount using soldering method only (avoid connectors/sockets to prevent contact resistance issues affecting performance)

4 Avoid prolonged short circuits even with overcurrent protection; resolve overcurrent status within 30 seconds to prevent damage

5 Operate within specified electrical and environmental conditions: input voltage 9-18Vdc, operating temperature -40°C to +85°C (follow temperature derating guidelines)

6 Do not use in environments with corrosive gases or excessive dust to prevent component damage

7 Implement static electricity protection measures (ground workplace and operators) as the product is sensitive to static

8 No built-in overvoltage protection; add external protection circuits if required

9 Use reflow soldering only (flow mounting is not allowed) and follow the specified temperature profile (e.g., Sn-3Ag-0.5Cu solder: max 245°C, 225°C+ for 20-40 seconds)

10 Do not immerse in cleaning solutions; use no-clean flux for soldering

11 Store the product below 30°C and 60% relative humidity before mounting

12 If overcurrent protection activates and does not auto-restart, turn off power or use ON/OFF control to reactivate the product

13 When adjusting output voltage, follow the provided resistor calculation formulas or short Vadj and -Vout terminals for maximum voltage; ensure adjustments stay within the specified range (±11.4V to ±15V)

BLC12-12W25-PDF数据手册-参考资料