Datasheet4U Logo Datasheet4U.com

LP3942 - The Dual RGB LED Controller

General Description

The LP3942 is an integrated stand-alone RGB LED controller with a high efficiency and low noise programmable 1.5x and 2x charge pump.

The RGB LEDs are controlled through the low voltage SPI interface.

RGB programmability allows unique color and brightness control with both RGB outputs.

Key Features

  • n Pre-regulated 1.5x and 2x charge pump with regulated output (4.5V and 5.0V) n 2 separately controlled PWM RGB LED drivers with programmable color and brightness n Overlapping and non-overlapping RGB mode n Wide input voltage range 3V.
  • 5.0V n Output current up to 120 mA n Low voltage SPI interface n Programmable low current Standby mode n Tiny LLP24 package (5mm.
  • 4mm.
  • 0.8mm).

📥 Download Datasheet

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
LP3941A Cellular Phone Power Management
LP3943 RGB/White/Blue 16-LED Fun Light Driver
LP3944 RGB/White/Blue 8-LED Fun Light Driver
LP3945 Battery Charge Management
LP3946 Battery Charge Management
LP3947 USB/AC Adaptor Single Cell Li-Ion Battery Charger
LP3905 Power Management Unit For Low Power Handheld Applications
LP3906 Dual High Current Step Down DC/DC and Dual Linear Regulator
LP3907 Dual High-Current Step-Down DC/DC and Dual Linear Regulator
LP3910 Power Management

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
PRELIMINARY www.DataSheet4U.com November 2004 LP3942 The Dual RGB LED Controller with 1.5x/2x Charge Pump and SPI Interface LP3942 The Dual RGB LED Controller with 1.5x/2x Charge Pump and SPI Interface General Description The LP3942 is an integrated stand-alone RGB LED controller with a high efficiency and low noise programmable 1.5x and 2x charge pump. The RGB LEDs are controlled through the low voltage SPI interface. RGB programmability allows unique color and brightness control with both RGB outputs. The color control has preselected color settings for color blending. The LED current control is done using constant current sinks that can be also used as switches. The nonoverlapping RGB output PWM control minimizes the input noise.