LPD6803 Просмотр технического описания (PDF) - Unspecified

Номер в каталоге

Компоненты Описание

производитель

LPD6803

3 channel constant-current driver and grey-level modulate output

Unspecified 

LPD6803 datasheet

SUPER-PWM non-line adjust module

Oscillator basic

counter

Counter

compare array

Shift register array

LDO ower

dealing

VOUT

Output driver

OUTPUT

FEEDBACK

Output driver

OUTPUT

FEEDBACK

Output driver

OUTPUT

FEEDBACK

Output re-

gernate driver

DOUT

DCLKO

Basic timing sequence

A. First shift in 32bit “0” as start frame, then shift in all data frame, start frame and data

frame both are shift by high-bit, every data is input on DCLK rising edge.

B. The first data frame is corresponding LED light nearest from shift-in polar, its format

includes 1bit as start “1” plus 3 groups 5bits grey level.

C. Turn shift in all data, add append pulse of corresponding point, new data start valid.

Function features:

● Limited parameter:

Parameter

Supply voltage

LED light voltage

Data Clock

Frequency

Maxim Driver

Current

channel current

error

power consumption

Symbol Range

VDD

3-8

VLED 3-12

Unit

V

V

FCLK 25(compatible with grey level at 10) MHZ

IOMAX

45 at constant voltage, 30 at

constant current

mA

DIO

chip inside <5%, between Chip <6%

%

PDMAX 600

mW

3

Share Link: