Features:
1. This product is a current regulation integrated circuit operating from an input voltage of 2.8V to 6V, the constant output current can be set up to 1.5A with an external resistor.
2. It consists of high precision reference voltage, amplifier, current mirror, etc. The onchip power transistor and current sense block greatly reduce the external component count, which makes this product ideal for LED driver.
3. When the CE pin is high, the input voltage is greater than 2.8V, and is larger than the LED forward voltage plus the required voltage drop, it functions normally to deliver constant current from the LED pin.
4. Adopts the temperature regulation instead of temperature protection function, the temperature regulation can make the LED being turned on continuously in case of high ambient temperature or high voltage drop. When the junction temperature reaches about 135
degrees
C, the internal temperature regulation block reduces the LED current so that the junction temperature will not rise any more. This feature allows the users to
maximize the use of the power handling capability of the chip, do not worry about the chip overheating and damage to the chip or external components.
5. With e chip enable function, which can shutdown the whole chip to limit the current consumption within 1uA.
6. Adopts the over current protection block. When LED current approaches 1.9A(Typical), the over current protection block begins to function to prevent the LED current from increasing further.
Specification:
Working voltage : DC 2.86V(Perfect for 3V 3.3V 3.7V 4.5V 5V 6V LED Driver)
Output current: 301500mA
Maximum output power: 9W
Can drive 116pcs 2.86V LEDs (maximum current does not exceed 1.5A)
Current regulation: 1 through adjustable resistance; 2 through PWM signal control
Weight: 0.56g
Package list:
1 * Adjustable Current LED Driver
This product is a current regulation integrated circuit operating from an input voltage of 2.8V to 6V, the constant output current can be set up to 1.5A with an external resistor.
It consists of high precision reference voltage, amplifier, current mirror, etc. The onchip power transistor and current sense block greatly reduce the external component count, which makes this product ideal for LED driver.
When the CE pin is high, the input voltage is greater than 2.8V, and is larger than the LED forward voltage plus the required voltage drop, it functions normally to deliver constant current from the LED pin.
Adopts the temperature regulation instead of temperature protection function, the temperature regulation can make the LED being turned on continuously in case of high ambient temperature or high voltage drop. When the junction temperature reaches about 1
With e chip enable function, which can shutdown the whole chip to limit the current consumption within 1uA.
No-delivery refund
