High current driver for flash LED with built-in timing.
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4+2 or 6 low voltage constant current white LED drivers with programmable 8-bit adjustment (0…25mA/LED)
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High efficiency Boost DC-DC converter
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SPI / I
2C compatible interface
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Possibility for external PWM dimming control
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Possibility for clock synchronization for RGB timing
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Ambient light and temperature sensing possibility
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Small package – micro SMD or micro SMDxt, 3.0 x 3.0 x 0.6mm
Description
LP3954 is an advanced lighting management unit for handheld devices. It drives any phone lights including display backlights,
RGB, keypad and camera flash LEDs. The boost DC-DC converter drives high current loads with high efficiency. White LED backlight
drivers are high efficiency low voltage structures with excellent matching and automatic fade in/ fade out function. The new
stand-alone command based RGB controller is feature rich and easy to configure. Built-in audio synchronization feature allows
user to synchronize the color LEDs to audio input. Integrated high current driver can drive camera flash LED or motor/vibra.
Internal ADC can be used for ambient light or temperature sensing. The flexible SPI/I
2C interface allows easy control of LP3954. Small micro SMD package together with minimum number of external components is
a best fit for handheld devices.
LP3954
