Datasheet
MAX6952
4-Wire Interfaced, 2.7V to 5.5V,
4-Digit 5
✕
7 Matrix LED Display Driver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(Typical operating circuit, V+ = 3.0V to 5.5V, T
A
= T
MIN
to T
MAX
, 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 (T
A
= +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 (T
MIN
, T
MAX
)......-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
T
A
= T
MIN
to T
MAX
100 µA
Shutdown Supply Current I
SHDN
Shutdown mode, all
digital inputs at V+ or
GND
T
A
= +25°C3680
Operating Supply Current I+
All segments on, intensity set to full,
internal oscillator, DOUT open circuit, no
display load connected, blink open circuit
12 16 mA
Master Clock Frequency (OSC
Internal Oscillator)
f
OSC
OSC = RC oscillator, R
SET
= 53.6kΩ,
C
SET
= 26pF
4 MHz
Master Clock Frequency (OSC
External Oscillator)
f
OSC
OSC overdriven externally 1 8 MHz
Dead Clock Protection
Frequency
f
OSC
90 kHz
OSC Internal/External Detection
Threshold
V
OSC
1.7 V
OSC High Time t
CH
50 ns
OSC Low Time t
CL
50 ns
Slow Segment Blink Period
(OSC Internal Oscillator)
f
S L OWB L I N K
OSC = RC oscillator, R
SET
= 53.6kΩ,
C
SET
= 26pF
1s
Fast Segment Blink Period
(OSC Internal Oscillator)
f
F A S T B L I N K
OSC = RC oscillator, R
SET
= 53.6kΩ,
C
SET
= 26pF
0.5 s
Fast or Slow Segment Duty
Cycle
(Note 2) 49.5 50.5 %
Column Drive Source Current I
COLUMN
V
LED
= 2.4V, V+ = 3.0V, T
A
= +25°C -32 -48 mA
Segment Current Slew Rate ∆I
SEG
/∆tT
A
= +25
o
C 12.5 mA/µs
Segment Drive Current
Matching (Within IC)
∆I
SEG
T
A
= +25
o
C4%