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/I2C interface allows easy control of LP3954. Small DSBGA package together with minimum number of external components is a best fit for handheld devices.
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| Number of channels | 13 |
| LED current per channel (mA) | 25.5 |
| LED configuration | Parallel |
| Program memory | Yes |
| Topology | Boost |
| Programmable ramp control | Yes |
| Vin (min) (V) | 3 |
| Vin (max) (V) | 7.2 |
| Iout (max) (A) | 0.4 |
| Features | Analog/PWM mixed dimming, Constant current, I2C control |
| Iq (typ) (mA) | 0.4 |
| Shutdown current (ISD) (typ) (µA) | 1 |
| Operating temperature range (°C) | -30 to 85 |
| Rating | Catalog |
| DSBGA (YZR) | 36 | 10.5625 mm² 3.25 x 3.25 |
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