MAX6953 데이터 시트보기 (PDF) - Maxim Integrated

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MAX6953

2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 ✕ 7 Matrix LED Display Driver

Maxim Integrated 

2-Wire Interfaced, 2.7V to 5.5V, 4-Digit 5 ✕ 7

Matrix LED Display Driver

ABSOLUTE MAXIMUM RATINGS

Voltage (with Respect to GND)

V+ .............................................................................-0.3V to +6V

All Other Pins................................................-0.3V to (V+ + 0.3V)

O0–O13 Sink Current ....................................................... 500mA

O14–O23 Source Current .................................................. 50mA

Continuous Power Dissipation (TA = +70°C)

36-Pin SSOP (derate 11.8mW/°C above +70°C) .....941.2mW

40-Pin PDIP (derate 16.7mW/°C above +70°C)........1333mW

Operating Temperature Range

MAX6953E ......................................................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

DC ELECTRICAL CHARACTERISTICS

(Typical operating circuit, V+ = 3.0V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)

PARAMETER

Operating Supply Voltage

Shutdown Supply Current

SYMBOL

CONDITIONS

MIN

V+

2.7

ISHDN

Shutdown mode, all

digital inputs at V+

or GND

TA = TMIN to TMAX

TA = +25°C

TYP MAX UNITS

5.5

V

130

µA

70

100

Operating Supply Current

All segments on, intensity set to full,

I+

internal oscillator, no display load

connected, BLINK open circuit

12

15

mA

Master Clock Frequency

(OSC Internal Oscillator)

Master Clock Frequency

(OSC External Clock)

Dead Clock Protection

Frequency

OSC Internal/External Detection

Threshold

OSC High Time

OSC Low Time

Slow Segment Blink Period

(OSC Internal Oscillator)

Fast Segment Blink Period

(OSC Internal Oscillator)

Fast or Slow Segment Blink

Duty Cycle (Note 2)

Column Drive Source Current

fOSC

fOSC

OSC = RC oscillator, RSET = 53.6kΩ,

CSET = 26pF

OSC overdriven externally

fOSC

VOSC

tCH

tCL

fSLOWBLINK

fFASTBLINK

OSC = RC oscillator, RSET = 53.6kΩ,

CSET = 26pF

OSC = RC oscillator, RSET = 53.6kΩ,

CSET = 26pF

ICOLUMN VLED = 2.4V, V+ = 3.0V, TA = +25oC

4

MHz

1

8

MHz

90

kHz

1.7

V

50

ns

50

ns

1

s

0.5

s

49.5

50.5

%

-32

-58

mA

2 _______________________________________________________________________________________

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