play drivers that interface microprocessors to 8 x 8 dot-
matrix red, green, and yellow (R,G,Y) LED displays
through a high-speed 4-wire serial interface.
The MAX6960–MAX6963 drive two monocolor 8 x 8
matrix displays, or a single RGY 8 x 8 matrix display with
no external components. The driver can also be used
with external pass transistors to control red, green, blue
(RGB) and other displays at higher currents and voltages.
The MAX6960–MAX6963 feature open- and short-circuit
LED detection, and provide both analog and digital tile
segment current calibration to allow 8 x 8 displays from
different batches to be compensated or color matched.
A local 3-wire bus synchronizes multiple interconnected
MAX6960–MAX6963s and automatically allocates memory
map addresses to suit the user’s display-panel
architecture.
The MAX6960–MAX6963s’ 4-wire interface connects mul-
tiple drivers, with display memory mapping shared and
allocated among the drivers. A single global write opera-
tion can send a command to all MAX6960s in a panel.
The MAX6963 drives monocolor displays with two-step
intensity control. The MAX6962 drives monocolor displays
with two-step or four-step intensity control. The MAX6961
drives monocolor or RGY displays with two-step intensity
control. The MAX6960 drives monocolor or RGY displays
with two-step or four-step intensity control.
o
o
o
o
o
o
o
o
o
o
o
o
Features
2.7V to 3.6V Operation
High-Speed 20MHz Serial Interface
Trimmed 40mA or 20mA Peak Segment Current
Directly Drives Either Two Monocolor or One RGY
Cathode-Row 8 x 8 Matrix Displays
Analog Digit-by-Digit Segment Current Calibration
Digital Digit-by-Digit Segment Current Calibration
256-Step Panel Intensity Control (All Drivers)
Four Steps per Color Pixel-Level Intensity Control
Open/Short LED Detection
Burst White to Display Memory Planes
Global Command Access All Devices
Can Control RGB Panels or Higher
Current/Voltage Panels with External Pass
Transistors
Multiple Display Data Planes Ease Animation
Automatic Plane Switching from 63 Planes per
Second to One Plane Every 63s, with Interrupt
Slew-Rate-Limited Segment Drivers for Lower EMI
Driver Switching Timing Can Be Spread Between
Multiple Drivers to Flatten Power-Supply Peak
Demand
Low-Power Shutdown with Full Data Retention
-40°C to +125°C Temperature Range
o
o
o
o
o
o
Pin Configurations
RISET1
RISET0
ADDCLK
ADDIN
ADDOUT
V+
COL16
Applications
COL15
COL14
V+
GND
TOP VIEW
Message Boards
Gaming Machines
33
32
31
30
Industrial Controls
Audio/Video Equipment
44
43
42
41
40
39
38
37
36
35
34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
MAX6960-MAX6963
29
28
27
26
25
24
23
COL13
COL12
COL11
COL10
COL9
V+
COL8
COL7
COL6
COL5
COL4
Ordering Information
PART
MAX6960ATH
MAX6961AM
H
MAX6961ATH
MAX6962AM
H
MAX6962ATH
MAX6963AM
H
MAX6963ATH
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
44 TQFN-EP*
44 MQFP
44 TQFN-EP*
44 MQFP
44 TQFN-EP*
44 MQFP
44 TQFN-EP*
OSC
CS
DIN
DOUT
CLK
RST
COL1
COL2
COL3
V+
GND
MQFP
*EP
= Exposed pad.
Pin Configurations continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-3696; Rev 4; 11/12
MAX6960–MAX6963
4-Wire Serially Interfaced
8 x 8 Matrix Graphic LED Drivers
ABSOLUTE MAXIMUM RATINGS
(Voltage with respect to GND.)
V+ .............................................................................-0.3V to +4V
All Other Pins................................................-0.3V to (V+ + 0.3V)
ROW1–ROW8 Sink Current ..............................................750mA
COL1–COL16 Source Current ...........................................48mA
Continuous Power Dissipation (T
A
= +70°C)
44-Pin MQFP
(derate 12.7 mW/°C over +70°C) ...............................1012mW
44-Pin TQFN
(derate 27mW/°C over +70°C) ...................................2162mW
Operating Temperature Range
(T
MIN
to T
MAX
) ..............................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+240°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.
ELECTRICAL CHARACTERISTICS
(V+ = 2.7V to 3.6V, T
A
= T
MIN
to T
MAX
, typical values at V+ = 3.3V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Operating Supply Voltage
Shutdown Supply Current
SYMBOL
V+
I
SHDN
Shutdown mode, all
digital inputs at V+
or GND
Intensity set to full,
no display load
connected
T
A
= +25°C
T
A
= T
MIN
to +85°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to +85°C
T
A
= T
MIN
to T
MAX
1.0
50
40
40
V
LED
= 2.3V, V+ =
3.15V to 3.6V,
current = high
I
SEG
V
LED
= 2.3V, V+ =
2.7V to 3.6V, current
= low
T
A
= +25°C
T
A
= T
MIN
to +85°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to +85°C
T
A
= T
MIN
to T
MAX
38
37
37
19
18.5
18.5
200
ppm/°C
V
LED
= 2.2V, V+ = 2.7V to 3.3V,
current = low
T
A
= +25°C
200
30
mA/µs
20
40
42
43
44
21
21.5
22.0
mA
90.5
7.5
CONDITIONS
MIN
2.7
250
TYP
MAX
3.6
375
500
600
9
10
11
8.5
200
MHz
kHz
ns
ns
mA
µA
UNITS
V
Operating Supply Current
Master Clock Frequency
Dead-Clock Protection
Frequency
OSC High Time
OSC Low Time
I+
f
OSC
f
OSC
t
CH
t
CL
Anode Column Source Current
COL1–COL16
Anode Column Source-Current
Temperature Variation
COL1–COL16
Segment Current Slew Rate
V
LED
= 2.3V, V+ = 3.15V to 3.6V,
current = high
I
TC
∆I
SEG
/∆t
2
Maxim Integrated
MAX6960–MAX6963
4-Wire Serially Interfaced
8 x 8 Matrix Graphic LED Drivers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 2.7V to 3.6V, T
A
= T
MIN
to T
MAX
, typical values at V+ = 3.3V, T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
LOGIC INPUTS AND OUTPUTS
Input Leakage Current
DIN, CLK,
CS,
OSC, ADDIN,
ADDCLK,
RST
Logic-High Input Voltage
DIN, CLK,
CS,
OSC, ADDIN,
ADDCLK,
RST
Logic-Low Input Voltage
DIN, CLK,
CS,
OSC, ADDIN,
ADDCLK,
RST
DOUT Output Rise and Fall Times
DOUT Output High Voltage
DOUT Output Low Voltage
ADDOUT Output High Voltage
ADDOUT Output Low Voltage
ADDCLK Output High Voltage
ADDCLK Output Low Voltage
TIMING CHARACTERISTICS
CLK Clock Period
CLK Pulse-Width High
CLK Pulse-Width Low
CS
Fall to CLK Rise Setup Time
CLK Rise to
CS
Rise Hold Time
DIN Setup Time
DIN Hold Time
Output Data Propagation Delay
Minimum
CS
Pulse High
t
CP
t
CH
t
CL
t
CSS
t
CSH
t
DS
t
DH
t
DO
t
CSW
25
50
22
22
12.5
0
12.5
10
22
ns
ns
ns
ns
ns
ns
ns
ns
ns
I
IH
, I
IL
-100
5
+100
nA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
IHI
0.7 x
V+
V
V
ILO
t
FTDO
V
OHDO
V
OLDO
V
OHADO
V
OLADO
V
OHACK
V
OLACK
C
LOAD
= 100pF
I
SOURCE
= 20mA
I
SINK
= 20mA
I
SOURCE
= 500µA
I
SINK
= 500µA
I
SOURCE
= 2.5mA
I
SINK
= 2.5mA
V+ -
0.3
V+ -
0.3
V+ -
0.3
0.3 x
V+
10
V
ns
V
0.3
V
V
0.3
V
V
0.3
V
Note 1:
All parameters are tested at T
A
= +25°C. Specifications over temperature are guaranteed by design.
Maxim Integrated
3
MAX6960–MAX6963
4-Wire Serially Interfaced
8 x 8 Matrix Graphic LED Drivers
Typical Operating Characteristics
OPERATING SUPPLY CURRENT
vs. TEMPERATURE
MAX6960 toc01
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
3.6V
SUPPLY CURRENT (mA)
0.3
3.3V
MAX6960 toc02
DEAD-CLOCK OSCILLATOR
vs. SUPPLY VOLTAGE
MAX6960 toc03
8.0
3.6V
3.3V
7.6
0.4
100
DEAD-CLOCK OSCILLATOR
7.8
SUPPLY CURRENT (mA)
95
+25°C
90
+125°C
0.2
2.7V
0.1
7.4
2.7V
7.2
85
-40°C
7.0
-40
-7
26
59
92
125
TEMPERATURE (°C)
0
-40
-7
26
59
92
125
TEMPERATURE (°C)
80
2.50
2.72
2.94
3.16
3.38
3.60
SUPPLY VOLTAGE (V)
PEAK-OUTPUT SOURCE CURRENT
vs. SUPPLY VOLTAGE (HIGH-CURRENT MODE)
MAX6960 toc04
PEAK-OUTPUT SOURCE CURRENT
vs.SUPPLY VOLTAGE (LOW-CURRENT MODE)
2.2V LED
PEAK-OUTPUT CURRENT (mA)
21
MAX6960 toc05
PEAK-OUTPUT SOURCE CURRENT
vs. TEMPERATURE (HIGH-CURRENT MODE)
2.3V LED
PEAK-OUTPUT CURRENT (mA)
3.6V
40.4
3.3V
MAX6960 toc06
45
2.3V LED
PEAK-OUTPUT CURRENT (mA)
43
22
40.8
41
20
40.0
3.15V
39.6
39
19
37
18
35
2.5
2.8
3.1
3.4
3.7
SUPPLY VOLTAGE (V)
17
2.5
2.7
2.9
3.1
3.3
3.5
3.7
SUPPLY VOLTAGE (V)
39.2
-40
-7
26
59
92
125
TEMPERATURE (°C)
4
Maxim Integrated
MAX6960–MAX6963
4-Wire Serially Interfaced
8 x 8 Matrix Graphic LED Drivers
Pin Description
PIN
MQFP
1, 6, 11,
12, 44
TQFN
1, 6, 11,
12, 44
NAME
GND
ROW1–ROW8
OSC
CS
DIN
DOUT
CLK
RST
Ground
LED Cathode Drivers. ROW1 to ROW8 outputs sink current from the display's cathode rows.
Multiplex Clock Input. Drive OSC with a 1MHz to 8.5MHz CMOS clock.
Chip-Select Input. Serial data is loaded into the shift register when
CS
is low. Data is
loaded into the data latch on
CS's
rising edge.
Serial-Data Input. Data from DIN loads into the internal shift register on CLK's rising edge.
Serial-Data Output. The output is tri-state.
Serial-Clock Input. On CLK's rising edge data shifts into the internal shift register.
Reset Input. Hold
RST
low until at least 50ms after all interconnected MAX6960s are
powered up.
FUNCTION
2–5, 7–10 2–5, 7–10
13
14
15
16
17
18
19, 20,
21,
23–27,
29–33,
35, 36,
37
22, 28,
34, 38
39
40
41
13
14
15
16
17
18
19, 20,
21,
23–27,
29–33,
35, 36,
37
22, 28,
34, 38
39
40
41
COL1–COL16
LED Anode Drivers. COL1 to COL16 outputs source current into the display's anode
columns.
V+
ADDOUT
ADDIN
ADDCLK
Positive Supply Voltage. Bypass V+ to GND with a single 47µF bulk capacitor per chip
plus a 0.1µF ceramic capacitor per V+.
Address-Data Output. Connect ADDOUT to ADDIN of the next MAX6960. Use ADDOUT of
the last MAX6960 as a plane change interrupt output.
Address-Data Input. For first MAX6960, connect ADDIN to V+. For other MAX6960s,
connect ADDIN to ADDOUT of the preceding MAX6960.
Address-Clock Input/Output. Connect ADDCLK of all MAX6960 drivers together, ensuring
that only one MAX6960's ADDIN input is connected to V+.
Digit 0 Current Setting. Connect RISET0 to GND to program all of digit 0's segment
currents to 40mA. Leave RISET0 open circuit to program all of digit 0's segment currents
to 20mA. Connect RISET0 to GND through a fixed or variable resistor to adjust all of digit
0's segment currents between 20mA and 40mA.
Digit 1 Current Setting. Connect RISET1 to GND to program all of digit 1's segment
currents to 40mA. Leave RISET1 open circuit to program all of digit 1's segment currents
to 20mA. Connect RISET1 to GND through a fixed or variable resistor to adjust all of digit
白光LED光衰原因之荧光粉性能的衰退 到目前，白光 LED、尤其是小功率白光 LED 的发光性能快速衰退已越来越为人们所认识。其实，盲目地夸大宣传，只能将 LED 行业引向歧途，不正视白光 LED 存在的问题，只能延缓白光 LED 应用的发展。只有正视问题、研究问题、尽早解决问题，白光 LED 才能健康、快速发展。 白光 LED 当前面临的一个主要问题就寿命问题。由于白光 LED 的价格尚很...[详细]
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