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MM5451BV Datasheet

  • MM5451BV

  • LED Display Driver

  • 8頁(yè)

  • MICREL   MICREL

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MM5450/5451
Micrel
MM5450/5451
LED Display Driver
General Description
The MM5450 and MM5451 LED display drivers are monolithic
MOS IC鈥檚 fabricated in an N-Channel, metal-gate process.
The technology produces low-threshold, enhancement-mode,
and ion-implanted depletion-mode devices.
A single pin controls the LED display brightness by setting a
reference current through a variable resistor connected to
the supply.
Features
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Continuous brightness control
Serial data input
No load signal requirement
Enable (on MM5450)
Wide power supply operation
TTL compatibility
34 or 35 outputs, 15mA capability
Alphanumeric capability
Applications
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Industrial control indicator
Relay driver
Digital clock, thermometer, counter, voltmeter
Instrumentation readouts
Ordering Information
Part Number
MM5450BN
MM5451BN
MM5450BV
MM5451BV
Junction Temp. Range
鈥?0擄C to +85擄C
鈥?0擄C to +85擄C
鈥?0擄C to +85擄C
鈥?0擄C to +85擄C
Package
40-pin Plastic DIP
40-pin Plastic DIP
44-pin PLCC
44-pin PLCC
Block Diagram
VDD
BRIGHTNESS
CONTROL
19
20
OUT 34
24
OUT 1
18
35 OUTPUT BUFFERS
35 LATCHES
DATA ENABLE/OUT 35 23
(See Note 1)
SERIAL DATA
22
35-BIT SHIFT
REGISTERS
LOAD
RESET
CLOCK
21
1
Note 1: Pin 23 is Data Enable in MM5450
Pin 23 is Output 35 in MM5451
Figure 1.
RESET
(only available
in die form)
870 01
Micrel, Inc. 鈥?1849 Fortune Drive 鈥?San Jose, CA 95131 鈥?USA 鈥?tel + 1 (408) 944-0800 鈥?fax + 1 (408) 944-0970 鈥?http://www.micrel.com
May 2000
1
MM5450/5451

MM5451BV 產(chǎn)品屬性

  • 26

  • 集成電路 (IC)

  • PMIC - 顯示器驅(qū)動(dòng)器

  • -

  • LED

  • -

  • 串行

  • -

  • 10mA

  • 4.75 V ~ 11 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 44-LCC（J 形引線）

  • 44-PLCC

  • 管件

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