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Original question:

LP5562: LP5562 feature support question

LP5562: Replacing PCA9632

Kelvin Le THS
Expert 7855 points
Part Number: LP5562

Hi,

I want to check to see if LP5562 would be a good replacement for PCA9632. This is for a LCD backlight application.

Thanks

-Kelvin

  • 0 in reply to Kelvin Le THS
    TI__Genius 9255 points

    Hi Kelvin,

    sorry for not replaying in timely.

    LP5562 PCA9632
    Each output programmable Each output programmable
    400kHz Fast-mode Plus I2C-bus interface 1 MHz Fast-mode Plus I2C-bus interface
    25.5 mA high drive capability 30 mA high drive capability

    With 8-Bit Current Setting (From 0 mA to 25.5 mA
    With 100-μA Steps) and 8-Bit PWM Control

    (6-bit) linear programmable brightness for each LED output

    8-bit resolution (256 steps) in Individual brightness control mode

    Operating power supply voltage range of 2.7 V to 5.5 V

    Operating power supply voltage range of 2.3 V to 5.5 V

    comparing LP5562 with PCA9632, the LP5562 can replace PCA9632 well. And LP5562 Brightness adjustment is either linear or logarithmic. By using logarithmic scale the visual effect seems linear to the eye. the program functions of LP5562 is more diversity.