Consumers want high-quality displays for mobile phones, PDAs, and other handheld devices to play back high-quality video such as news clips, music videos, and movie previews for long periods of time. National Semiconductor is embracing this demand by supplying a wide range of power products that extend battery life and display technology that delivers clearer pictures.
Component highlights
*Displays - combines low power and advanced interface design to enhance color displays, improve contrast, and extend battery life. Automatic backlight control further extends battery life, especially during PDA operation. Supports 176 X 240 pixels with versatile mounting and scan options. Direct connection to most CMOS imagers with no glue logic. Supports 24-bit color (dithered) or true 18-bit color. Wide input voltage ranges ideal for battery-operated devices.
*White LED Driver - efficient, low noise, simple to drive, and product brightness matching and color uniformity in chip-scale packaging.
1 Battery Charger
LM3655TL
LM3655TLX
LM3658SD
2 White-LED Driver
LM2704
LM2705
LM2750
3 RGB LED Driver
LP3943
LP3944
LM2704
4 Flash Lighting Driver
LM2704
LM2705
LM2750
5 Lighting Mgmt System
LM3500
LM3501
LM3551
6 Gate Driver
The FPD93140 is a Low Power Gate Driver with Power Supply for Small Format LCD Displays. The FPD93140 and the companion FPD94128 (Controller / Column Driver with Integrated Frame Buffer) form a complete 2-chip solution for driving TFT LCD panels containing up to 176RGB X 240 pixels with versatile mounting and scan options. Its function is to drive the gates of the LCD active matrix displays and to generate all the supply voltages necessary for display operation. A shift register activates rows sequentially in programmable sequences based on the external clock. On chip charge pumps require a minimum number of external capacitores to generate all the necessary voltages to power the FPD94128 Column Driver and drive the LCD rows.Under command from the FPD94128 series Column Driver, the FPD93140 can drive from 2 to 240 rows. This allows the use of various display sizes and Partial Display modes to reduce power consumption
7 Column Driver
The FPD94128 is a Controller/Column Driver for use in low-power small format color TFT LCD displays. The FPD94128 contains a frame buffer, display refresh controller, programmable gamma reference, 528-channel column driver, and a backlight intensity modulator. The FPD94128 and the companion FPD93140 (gate driver with power supply) form a complete 2-chip solution for driving TFT LCD panels containing up to 176RGB x 240 pixels with versatile mounting and scan options. 262,144 colors are supported in 18-bit color mode, and 12-bit, 9-bit, and 3-bit color modes are provided for reduced power. Data may be loaded via serial, 8/16-bit parallel, and video interfaces (18-bit NTSC RGB or 8/16-bit BT.601 4:2:2 YCbCr).
The video frame rate and the refresh rate of the LCD panel are independent. The LCD panel refresh rate and the polarity inversion interval are programmable. The LCD panel refresh rate may be up to 125 fps. Two partial-display regions, reduced-color modes, and an automatic backlight control are provided to minimize total system power consumption. The FPD94128 requires no external components.
Parts are provided as gold bumped flip-chip devices. The nominal range for VDD is [1.8V-3.3] V, and the nominal range for the LCD drive voltage is [3.3-5.5] V.
8 Switching Regulators
LM2622
LM2623
LM2698
9 DC / DC Converters
LM2704MF-ADJ
LM2704MFX-ADJ
LM2705MF-ADJ |
|
