QX5241 is a step-down high-precision high-brightness LED constant current drive controller
QX5241 sets the output current through an external resistor, the maximum output current can reach 2.5A; the current detection accuracy can be up to ± 1%; the peripheral requires only a few components to realize the step-down, constant current drive function, and can pass DIM The pins implement the brightness control function.
The system adopts the inductor current hysteresis control method, has a very fast response to load transients, and has a high rejection ratio to the input voltage; its inductor current ripple is 20%, and the maximum operating frequency can reach 1MHz.
QX5241 is particularly suitable for applications with a wide input voltage range, with an input voltage range from 5.5V to 36V; and an operating temperature range from -20 ° C to 85 ° C.
QX5241 has a built-in LDO, the output voltage is 5V, and the maximum output current is 5mA.
QX5241 is available in a small SOT23-6 package.
? Maximum output current: 2.5A
? High efficiency: 96%
? High-end current detection
? Maximum brightness control frequency: 5KHz
? Hysteresis control without compensation
? Maximum working frequency: 1MHz
? Current accuracy: up to ± 1%
? Wide input voltage: 5.5V ~ 36V
? Maximum output power: 25W
? 5V, 5mA on-chip voltage regulator
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