Matrix LED Display Driver

2

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ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

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

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

V

130

Shutdown Supply Current

Shutdown mode, all

digital inputs at V+

or GND

70

100

µA

Operating Supply Current

I+

All segments on, intensity set to full,

internal oscillator, no display load

connected, BLINK open circuit

12

15

mA

Master Clock Frequency

(OSC Internal Oscillator)

4

MHz

Master Clock Frequency

(OSC External Clock)

OSC overdriven externally

1

8

MHz

Dead Clock Protection

Frequency

90

kHz

OSC Internal/External Detection

Threshold

1.7

V

OSC High Time

50

ns

OSC Low Time

50

ns

Slow Segment Blink Period

(OSC Internal Oscillator)

1s

Fast Segment Blink Period

(OSC Internal Oscillator)

0.5

s

Fast or Slow Segment Blink

Duty Cycle (Note 2)

49.5

50.5

%

Column Drive Source Current

-32

-58

mA