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MAX6965

Description
LED DISPLAY DRIVER, PDSO16
Categorysemiconductor    Analog mixed-signal IC   
File Size327KB,22 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric View All

MAX6965 Overview

LED DISPLAY DRIVER, PDSO16

MAX6965 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals16
Maximum operating temperature125 Cel
Minimum operating temperature-40 Cel
Maximum supply voltage 13.6 V
Minimum supply voltage 12 V
Rated supply voltage 13.3 V
Processing package description0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
stateACTIVE
CraftsmanshipBICMOS
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.6350 mm
terminal coatingTIN LEAD
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelAUTOMOTIVE
Max-Min frequency0.4000 MHz
data entry modeSERIAL
Interface TypeLED DISPLAY DRIVER
number of segments9
19-3058; Rev 3; 3/05
9-Output LED Driver with Intensity Control
and Hot-Insertion Protection
General Description
The MAX6965 I
2
C™-compatible serial interfaced periph-
eral provides microprocessors with nine additional out-
put ports. Each output is an open-drain current-sinking
output rated to 50mA at 7V. All outputs are capable of
driving LEDs, or providing logic outputs with external
resistive pullup up to 7V.
Eight-bit PWM current control is also integrated. Four of
the bits are global control and apply to all LED outputs
to provide coarse adjustment of current from fully off to
fully on with 14 intensity steps. Additionally each output
then has an individual 4-bit control, which further
divides the globally set current into 16 more steps.
Alternatively, the current control can be configured as a
single 8-bit control that sets all outputs at once.
Each output has independent blink timing with two blink
phases. LEDs can be individually set to be either on or off
during either blink phase, or to ignore the blink control.
The blink period is controlled by an external clock (up to
1kHz) on BLINK or by a register. The BLINK input can also
be used as a logic control to turn the LEDs on and off, or
as a general-purpose input (GPI).
The MAX6965 supports hot insertion. The SDA, SCL,
RST,
BLINK, and the slave address input AD0 remain
high impedance in power-down (V+ = 0V) with up to 6V
asserted upon them. The output ports remain high
impedance with up to 8V asserted upon them.
The MAX6965 is controlled through a 2-wire I
2
C serial
interface, and can be configured to one of four I
2
C
addresses.
Features
400kbps, 2-Wire Serial Interface, 5.5V Tolerant
2V to 3.6V Operation
Overall 8-Bit PWM LED Intensity Control
Global 16-Step Intensity Control
Plus Individual 16-Step Intensity Controls
Two-Phase LED Blinking
High Port Output Current—Each Port 50mA (max)
RST
Input Clears Serial Interface and Restores
Power-Up Default State
Supports Hot Insertion
Outputs are 7V-Rated Open Drain
Low Standby Current (1.2µA (typ), 3.3µA (max))
Tiny 3mm x 3mm, Thin QFN Package
-40°C to +125°C Temperature Range
MAX6965
Ordering Information
PART
TEMP
RANGE
-40°C to
+125°C
-40°C to
PIN-
PACKAGE
16 Thin QFN
3mm x 3mm
x 0.8mm
16 QSOP
TOP
MARK
AAW
PKG
CODE
T1633-4
MAX6965ATE
MAX6965AEE
Typical Application Circuit
3.3V
0.047µF
7V
Applications
LCD Backlights
LED Status Indication
Keypad Backlights
RGB LED Drivers
µC
SDA
SCL
I/O
V+
MAX6965
SDA
SCL
BLINK
RST
O0
O1
O2
O3
O4
O5
AD0
O6
O7
O8
GND
6V
RELAY
RELAY
RELAY
Pin Configurations appear at end of data sheet.
Purchase of I
2
C components of Maxim Integrated Products, Inc.,
or one of its sublicensed Associated Companies, conveys a
license under the Philips I
2
C Patent Rights to use these compo-
nents in an I
2
C system, provided that the system conforms to the
I
2
C Standard Specification as defined by Philips.
I/O
________________________________________________________________
Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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