MAX6953_V01 datasheet(2/23 Pages) MAXIM

2 / 23 page

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

Matrix LED Display Driver

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

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

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.

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Supply Voltage

V+

2.7

5.5

TA = TMIN to TMAX

130

Shutdown Supply Current

ISHDN

Shutdown mode, all

digital inputs at V+

or GND

TA = +25°C

100

µA

Operating Supply Current

I+

All segments on, intensity set to full,

internal oscillator, no display load

connected, BLINK open circuit

Master Clock Frequency

(OSC Internal Oscillator)

fOSC

OSC = RC oscillator, RSET = 53.6kΩ,

CSET = 26pF

MHz

Master Clock Frequency

(OSC External Clock)

fOSC

OSC overdriven externally

MHz

Dead Clock Protection

Frequency

fOSC

kHz

OSC Internal/External Detection

Threshold

VOSC

1.7

OSC High Time

tCH

OSC Low Time

tCL

Slow Segment Blink Period

(OSC Internal Oscillator)

fSLOWBLINK

OSC = RC oscillator, RSET = 53.6kΩ,

CSET = 26pF

Fast Segment Blink Period

(OSC Internal Oscillator)

fFASTBLINK

OSC = RC oscillator, RSET = 53.6kΩ,

CSET = 26pF

0.5

Fast or Slow Segment Blink

Duty Cycle (Note 2)

49.5

50.5

Column Drive Source Current

ICOLUMN

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

-32

-58

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