SPJ-11-256

Input

parameter:

AC 8V ~ 18V

Input Frequency Range

50Hz ~ 60Hz

Input Current

Max. 500 mA
(at AC 8V input)

Power Factor

≥ 0.9 (at rated input voltage and rated load)

output

Output Voltage Range

DC 3V ~ 12V

Output Current

Constant 466 mA (±5%)

Output Power

Max. 4.2 W (at output voltage 12V; 466 mA × 9V light source = 4.2 W)

When input is 12 VAC (light source 6V) × 333 mA = 2 W

When input is 12 VAC (light source 3V) × 466 mA = 1.39 W

Voltage Regulation

≤ ±2% (within input voltage and load variation range)

Current Regulation

≤ ±5% (within input voltage and load variation range)

Ripple & Noise

≤ 100 mVp-p (at rated output voltage and current, 20 MHz bandwidth)

Protection features

Over-Temperature
Protection

When the internal chip temperature exceeds 120°C, the driver automatically reduces the output current or shuts down output to prevent damage.

Open-Circuit Protection

When the output is open-circuited, the driver enters a protection state and stops output current to avoid excessive voltage that may damage other components.

Short-Circuit Protection

When the output is short-circuited, the driver automatically limits the output current or shuts down output to prevent excessive current that could damage the chip or LED light source.

Environmental Requirements

Operating Temperature Range

- 20°C ~ +60°

Storage Temperature Range

-40°C ~ +85°C

Relative Humidity

10% ~ 90% (non-condensing)

Operating Altitude

Up to 2000 meters