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MAX6920

更新时间： 2023-12-20 18:45:00
品牌 Logo 应用领域
亚德诺 - ADI 驱动驱动器
页数 文件大小 规格书
10页 1131K
描述
12路输出、76V、串行接口VFD管驱动器

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中文翻译

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MAX6920 数据手册

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MAX6920  
12-Output, 76V, Serial-Interfaced VFD Tube Driver  
General Description  
The MAX6920 is a 12-output, 76V, vacuum fluo-  
rescent display (VFD) tube driver that interfaces a  
multiplexed VFD tube to a VFD controller such as the  
Features  
● 5MHz Industry-Standard 4-Wire Serial Interface  
● 3V to 5.5V Logic Supply Range  
● 8V to 76V Grid/Anode Supply Range  
MAX6850–MAX6853 or to  
a microcontroller. The  
● Push-Pull CMOS High-Voltage Outputs  
● Outputs can Source 40mA, Sink 4mA Continuously  
● Outputs can Source 75mA Repetitive Pulses  
● Outputs can be Paralleled for Higher Current Drive  
MAX6920 is also ideal for driving either static VFD tubes  
or telecom relays.  
Data is inputted using an industry-standard 4-wire serial  
interface (CLOCK, DATA, LOAD, BLANK) for compatibil-  
ity with both industry-standard drivers and Maxim’s VFD  
controllers.  
● Any Output can be Used as a Grid or an Anode  
Driver  
For easy display control, the active-high BLANK input  
forces all driver outputs low, turning the display off, and  
automatically puts the MAX6920 into shutdown mode.  
Display intensity may also be controlled by pulse-width  
modulating the BLANK input.  
● Blank Input Simplifies PWM Intensity Control  
● Small 20-Pin SO Package  
● -40°C to +125°C Temperature Range  
The MAX6920 has a serial interface data output pin,  
DOUT, allowing any number of devices to be cascaded  
on the same serial interface.  
The MAX6920 is available in a 20-pin SO pack-  
age. Maxim also offers VFD drivers with either 20  
(MAX6921/MAX6931) or 32 outputs (MAX6922 and  
MAX6932).  
Applications  
● White Goods  
● Gaming Machines  
● Avionics  
Ordering Information  
● Industrial Weighing  
● Security  
● Telecom  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX6920AWP  
-40°C to +125°C  
20 Wide SO  
Pin Configuration  
Typical Operating Circuit  
+5V  
+60V  
TOP VIEW  
C1  
100nF  
C2  
100nF  
V
1
2
3
4
5
6
7
8
9
20 V  
CC  
BB  
DOUT  
OUT11  
OUT10  
OUT9  
19 DIN  
20  
1
18 OUT0  
17 OUT1  
16 OUT2  
15 OUT3  
14 OUT4  
13 OUT5  
12 LOAD  
11 CLK  
V
V
BB  
CC  
µC  
MAX6920  
OUT0 – OUT11  
12  
MAX6920AWP  
19  
11  
12  
9
VFDOUT  
VFCLK  
DIN  
OUT8  
CLK  
OUT7  
VFLOAD  
LOAD  
BLANK  
OUT6  
VFBLANK  
BLANK  
GND  
10  
GND 10  
19-3061; Rev 1; 8/14  
1234567...10

中文翻译

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