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參數(shù)資料
| 型號： | MIC5400BWM |
| 廠商： | MICREL INC |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | GT 28C 28#16 SKT RECP WALL RM |
| 中文描述： | LED DISPLAY DRIVER, PDSO28 |
| 封裝： | SOIC-28 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 119K |
| 代理商： | MIC5400BWM |
November 2002
1
MIC5400
MIC5400
Micrel
MIC5400
Dual, 8-Output, 14-Bit LED Video Display Driver
General Description
The MIC5400 consists of 2 banks of 8 LED driver outputs,
each output capable of sinking up to 30mA. Each bank is
intended to drive 8 LED pixels of the same color. Most
applications will use the MIC5400 to drive pixel clusters of 4
LEDs (RRGB.) Typically two red LEDs are used for every one
green and blue to compensate for red LED brightness.
A single external resistor sets maximum drive current. Use of
an external resistor allows different color LED banks to be
biased to the same intensity. Brightness control is digitally
programmed through the serial interface. Coarse Brightness
Control is determined by two 4-bit DACs, one for each driver
bank, limiting the full-scale output to a fraction of the maxi-
mum value. Additionally, each output has Fine Brightness
Control using 10-bit resolution PWM.
Groups of drivers can be cascaded in Daisy Chain fashion.
Open circuit output faults are detected and can be read back
from the internal Status register.
Typical Application
SHFTCLK
VDDA
VDDB
VDD
SHIFTIN
SHIFTOUT
LOAD
0.01μF
2.2μF
2.2μF
Output A
Logic
Control and
SRegister
Output B
BD_A
BD_B
R
SET
330
330
MIC5400
V
DD
R
SC
R
SC
BCP69
BCP69
Features
2 banks of 8 outputs
Output characteristics:
Current sink: 30mA
– Programmable brightness control
Coarse: 4-bit resolution DAC
Fine: 10-bit resolution PWM
– Resistor sets maximum LED current to compensate
variation in LEDs
– Current limit on each output
Full protection:
– Over-temperature shutdown
– Watchdog disables output under fault condition
– Power-on reset (all LEDs Off)
– Soft-start on power up and watchdog recovery
– Output open fault detection with status register
readback
Output transitions are staggered to minimize supply
transients
Applications
Outdoor video screen
Large LED display
Ordering Information
Part Number
MIC5400BWM
Junction Temp. Range
–40
°
C to +85
°
C
Package
28-Pin Wide SOIC
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIC5400BWM TR | 功能描述:LED顯示驅(qū)動器 14-bit, 16 Channel LED Display Driver RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MIC5400CWM | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:RF Micro Devices Inc 功能描述: |
| MIC5400CWM TR | 制造商:Micrel Inc 功能描述:PN may be NE DW |
| MIC5400YWM | 功能描述:LED顯示驅(qū)動器 14-bit, 16 Channel LED Display Driver - Lead Free RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MIC5400YWM TR | 功能描述:LED顯示驅(qū)動器 14-bit, 16 Channel LED Display Driver - Lead Free RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
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