MAX6921AQI-T

更新时间： 2024-11-29 13:11:03

品牌	Logo	应用领域
美信 - MAXIM		驱动器
页数	文件大小	规格书
14页	275K
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数据手册

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MAX6921AQI-T 数据手册

19-3020; Rev 0; 10/03

20-Output, 76V, Serial-Interfaced

VFD Tube Drivers

General Description

Features

ꢀ 5MHz Industry-Standard 4-Wire Serial Interface

ꢀ 3V to 5.5V Logic Supply Range

The MAX6921/MAX6931 are 20-output, 76V, vacuum-

fluorescent display (VFD) tube drivers that interface a

multiplexed VFD tube to a VFD controller, such as the

MAX6850–MAX6853, or to a microcontroller. The

MAX6921/MAX6931 are also ideal for driving static VFD

tubes or telecom relays.

ꢀ 8V to 76V Grid/Anode Supply Range

ꢀ -11V to 0V Filament Bias Supply (MAX6931 Only)

ꢀ Push-Pull CMOS High-Voltage Outputs

Data is input using an industry standard 4-wire serial

interface (CLOCK, DATA, LOAD, BLANK), compatibile

with either Maxim’s or industry-standard VFD driver and

controller.

ꢀ Outputs can Source 40mA, Sink 4mA

Continuously

ꢀ Outputs can Source 75mA Repetitive Pulses

ꢀ Outputs can be Paralleled for Higher Current Drive

For easy display control, the active-high BLANK input

forces all driver outputs low, turning the display off, and

automatically puts the MAX6921/MAX6931 into shut-

down mode. Display intensity may also be controlled by

directly pulse-width modulating the BLANK input.

ꢀ Any Output can be Used as a Grid or an Anode

Driver

ꢀ Blank Input Simplifies PWM Intensity Control

ꢀ Small 28-Pin TSSOP Package

The MAX6921 has a serial interface data output, DOUT,

allowing any number of devices to be cascaded on the

same serial interface.

ꢀ -40°C to +125°C Temperature Range

The MAX6931 has a negative supply voltage input, V

allowing the drivers’ output swing to be made bipolar to

simplify filament biasing in many applications.

Ordering Information

PART

MAX6921AUI

MAX6921AWI

MAX6921AQI

MAX6931AUI

TEMP RANGE

-40°C to +125°C

PIN-PACKAGE

28 TSSOP

The MAX6921 is available in 28-pin TSSOP, SO, and

PLCC packages. The MAX6931 is available in a 28-pin

TSSOP package.

28 Wide SO

28 PLCC

Maxim also offers 12-output VFD drivers (MAX6920) and

32-output VFD drivers (MAX6922/MAX6932).

28 TSSOP

Typical Operating Circuit

Applications

White Goods

Gaming Machines

Automotive

Industrial Weighing

Security

+5V

+60V

100nF

Telecom

Avionics

VFD Modules

Industrial Control

Instrumentation

µC

MAX6931

VFDOUT

VFCLK

DIN

OUT0–OUT19

CLK

VFLOAD

LOAD

BLANK

VFBLANK

GND

-7V

100nF

Pin Configurations appear at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...14

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与MAX6921AQI-T相关器件

型号	品牌	获取价格	描述	数据表
MAX6921AUI	MAXIM	获取价格	20-Output, 76V, Serial-Interfaced VFD Tube Drivers
MAX6921AUI+	MAXIM	获取价格	暂无描述
MAX6921AUI+T	MAXIM	获取价格	Vacuum Fluorescent Driver, 20-Segment, BICMOS, PDSO28, ROHS COMPLIANT, TSSOP-28
MAX6921AUI-T	MAXIM	获取价格	Vacuum Fluorescent Driver, 20-Segment, BICMOS, PDSO28, 4.40 MM, MO-153AE, TSSOP-28
MAX6921AWI	MAXIM	获取价格	20-Output, 76V, Serial-Interfaced VFD Tube Drivers
MAX6921AWI/V+	MAXIM	获取价格	Vacuum Fluorescent Driver, 20-Segment, BICMOS, PDSO28, ROHS COPLIANT, SOP-28
MAX6921AWI/V+T	MAXIM	获取价格	Display Driver, BICMOS, PDSO28,
MAX6921AWI+	MAXIM	获取价格	暂无描述
MAX6921AWI+T	MAXIM	获取价格	暂无描述
MAX6921AWI-T	MAXIM	获取价格	Vacuum Fluorescent Driver, 20-Segment, BICMOS, PDSO28, 0.300 INCH, MS-013AE, SOIC-28

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