PT4115 Constant Current LED Driver Module, PWM Dimming, Packs of 1 or 5

Features: 1. The PT4115 module incorporates an integrated power switch, simplifying circuit design 2. Utilises high-side current sampling technology to precisely set the average LED current, ensuring stable constant-current output 3. Supports analogue dimming and wide-range PWM dimming via the DIM pin, offering flexible dimming solutions 4. Automatically enters ultra-low standby current mode when DIM pin voltage falls below 0.3V 5. Output current precisely calculable via formula: I = 0.1/RCS Parameters: Power Supply: DC 12V Output Mode: Constant Current Applications: LED strips, etc. Module Testing Methodology: 1. This is a buck-converter constant-current board operating within 5-32V input range. The input voltage must exceed the LED's required voltage by at least 1V to achieve the set current value. For instance, two series-connected 6V LEDs require a minimum input of 7V to illuminate; 5V input will fail to activate them. 2. This is a constant-current board, not a step-down voltage regulator. The board controls only current; voltage automatically adjusts to the LED's required voltage. For instance, with a single 3V LED connected to a 5-32V input, the voltage across the LED remains approximately 3V, while two strings require around 6V. Do not measure output voltage under no-load conditions, as the no-load output voltage equals the input voltage and is a fictitious reading. 3. Output current calculation formula: 1 = 0.1 / RCS. The board's maximum current is determined by the resistor values. R200 = 500mA, R330 = 300mA, 1R = 100mA. The board has only one 1R = 100mA sampling resistor. Two 1R resistors in parallel provide 100mA + 100mA = 200mA; One R330 = 300mA; two R330 = 600mA. R200 = 500mA; R200 + R200 = 1A; R200 + R330 = 800mA. Packing list: Module （1pcs/5pcs）