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MAX6956AAX/V+

Description
led display drivers 2.5-5.5V 20/28port led display driver
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size243KB,24 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric View All

MAX6956AAX/V+ Overview

led display drivers 2.5-5.5V 20/28port led display driver

MAX6956AAX/V+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
package instructionSSOP, SOP36,.4,32
Reach Compliance Codecompli
ECCN codeEAR99
Factory Lead Time6 weeks
Other featuresCOMMON-ANODE
display modeSEGMENT
Interface integrated circuit typeINTERFACE CIRCUIT
JESD-30 codeR-PDSO-G36
JESD-609 codee3
length15.375 mm
Humidity sensitivity level1
Number of digits/characters7-DIGIT
Number of functions1
Number of segments7
Number of terminals36
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSOP36,.4,32
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Filter levelAEC-Q100
Maximum seat height2.64 mm
Maximum supply voltage5.5 V
Minimum supply voltage2.5 V
Nominal supply voltage3.3 V
surface mountYES
technologyCMOS
Temperature levelAUTOMOTIVE
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.8 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.5 mm
19-2414; Rev 4; 6/10
KIT
ATION
EVALU
BLE
AVAILA
2-Wire-Interfaced, 2.5V to 5.5V, 20-Port or
28-Port LED Display Driver and I/O Expander
General Description
The MAX6956 compact, serial-interfaced LED display
driver/I/O expander provide microprocessors with up to
28 ports. Each port is individually user configurable to
either a logic input, logic output, or common-anode
(CA) LED constant-current segment driver. Each port
configured as an LED segment driver behaves as a
digitally controlled constant-current sink, with 16 equal
current steps from 1.5mA to 24mA. The LED drivers are
suitable for both discrete LEDs and CA numeric and
alphanumeric LED digits.
Each port configured as a general-purpose I/O (GPIO)
can be either a push-pull logic output capable of sink-
ing 10mA and sourcing 4.5mA, or a Schmitt logic input
with optional internal pullup. Seven ports feature config-
urable transition detection logic, which generates an
interrupt upon change of port logic level. The MAX6956
is controlled through an I
2
C-compatible 2-wire serial
interface, and uses four-level logic to allow 16 I
2
C
addresses from only 2 select pins.
The MAX6956AAX and MAX6956ATL have 28 ports
and are available in 36-pin SSOP and 40-pin thin QFN
packages, respectively. The MAX6956AAI and
MAX6956ANI have 20 ports and are available in 28-pin
SSOP and 28-pin DIP packages, respectively.
For an SPI-interfaced version, refer to the MAX6957
data sheet. For a lower cost pin-compatible port
expander without the constant-current LED drive capa-
bility, refer to the MAX7300 data sheet.
o
o
o
o
2
Features
400kbps I C-Compatible Serial Interface
2.5V to 5.5V Operation
-40°C to +125°C Temperature Range
20 or 28 I/O Ports, Each Configurable as
Constant-Current LED Driver
Push-Pull Logic Output
Schmitt Logic Input
Schmitt Logic Input with Internal Pullup
o
11µA (max) Shutdown Current
o
16-Step Individually Programmable Current
Control for Each LED
o
Logic Transition Detection for Seven I/O Ports
MAX6956
Ordering Information
PART
MAX6956ANI+
MAX6956AAI+
MAX6956AAX+
MAX6956ATL+
MAX6956AAX/V
MAX6956AAX/V+T
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
PIN-PACKAGE
28 DIP
28 SSOP
36 SSOP
40 Thin QFN-EP*
36 SSOP
36 SSOP
/V denotes an automotive qualified part.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*EP
= Exposed pad.
Pin Configurations
Applications
Set-Top Boxes
Panel Meters
White Goods
Automotive
Bar Graph Displays
Industrial Controllers
System Monitoring
TOP VIEW
ISET 1
GND 2
GND 3
AD0 4
P12 5
P13 6
P14 7
28 V+
27 AD1
26 SCL
25 SDA
24 P31
MAX6956
23 P30
22 P29
21 P28
20 P27
19 P26
18 P25
17 P24
16 P23
15 P22
Typical Operating Circuit appears at end of data sheet.
P15 8
P16 9
P17 10
P18 11
P19 12
P20 13
P21 14
SSOP/DIP
Pin Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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