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MAX16807AUI+

Description
Integrated 8-Channel LED Driver with Switch-Mode Boost and SEPIC Controller
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size220KB,19 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
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MAX16807AUI+ Overview

Integrated 8-Channel LED Driver with Switch-Mode Boost and SEPIC Controller

MAX16807AUI+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSSOP
package instructionTSSOP, TSSOP28,.25
Contacts28
Reach Compliance Codecompli
ECCN codeEAR99
Other featuresIT ALSO NEED 3 TO 5.5 V SUPPLY
data entry modeSERIAL
Interface integrated circuit typeLED DISPLAY DRIVER
JESD-30 codeR-PDSO-G28
JESD-609 codee3
length9.7 mm
Humidity sensitivity level1
Multiplex display functionNO
Number of functions1
Number of segments8
Number of terminals28
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP28,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply15 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply voltage25 V
Minimum supply voltage12 V
Nominal supply voltage15 V
surface mountYES
technologyBICMOS
Temperature levelAUTOMOTIVE
Terminal surfaceTin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width4.4 mm
minfmax1 MHz
19-0655; Rev 2; 8/09
KIT
ATION
EVALU
BLE
AVAILA
Integrated 8-Channel LED Driver with
Switch-Mode Boost and SEPIC Controller
General Description
The MAX16807 is an integrated, high-efficiency white or
RGB LED driver. It is designed for LCD backlighting
and other LED lighting applications with multiple strings
of LEDs. The MAX16807 current-mode PWM controller
regulates the necessary voltage to the LED array.
Depending on the input voltage and LED voltage
range, it can be used with boost or buck-boost (SEPIC)
topologies. The MAX16807 features an 8V to 26.5V
input voltage range. A wide range of adjustable fre-
quency (20kHz to 1MHz) allows design optimization for
efficiency and minimum board space.
The MAX16807 LED driver includes eight open-drain,
constant-current-sinking LED driver outputs rated for
36V continuous operation. The LED current-control cir-
cuitry achieves ±3% current matching among strings
and enables paralleling of outputs for LED string cur-
rents higher than 55mA. The output-enable pin is used
for simultaneous PWM dimming of all output channels.
Dimming frequency range is 50Hz to 30kHz and dim-
ming ratio is up to 5000:1. The constant-current outputs
are single resistor programmable and the LED current
can be adjusted up to 55mA per output channel.
The MAX16807 operates either in stand-alone mode or
with a microcontroller (µC) using an industry-standard, 4-
wire serial interface.
The MAX16807 includes overtemperature protection,
operates over the full -40°C to +125°C temperature
range, and is available in a thermally enhanced, 28-pin
TSSOP exposed paddle package.
Features
o
Eight Constant-Current Output Channels (Up to
55mA Each)
o
±3% Current Matching Among Outputs
o
Paralleling Channels Allows Higher Current per
LED String
o
Output Rated for 36V Continuous Voltage
o
Output-Enable Pin for PWM Dimming (Up to 30kHz)
o
One Resistor Sets LED Current for All Channels
o
Wide Dimming Ratio Up to 5000:1
o
Low Current-Sense Reference (300mV) for High
Efficiency
o
8V to 26.5V Input Voltage or Higher with External
Biasing Devices
o
4-Wire Serial Interface to Control Individual
Output Channels
MAX16807
Applications
LCD White or RGB LED Backlighting:
LCD TVs, Desktop, and Notebook Panels
Automotive Navigation, Heads-Up,
and Infotainment Displays
Industrial and Medical Displays
Ambient, Mood, and Accent Lighting
Ordering Information
PART
MAX16807AUI+
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
28 TSSOP-EP*
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Pin Configuration appears at end of data sheet.
Typical Operating Circuits
V
IN
L
V
OUT
D
Q
C
OUT
R1
LEDs
R
CS
C
C1
C
C2
R
C1
R2
3V TO 5.5V
OUT CS AGND
V
CC
C
IN
COMP
FB
V+
C
BYP
PGND
LE
DIN
CLK
DOUT
OE
SET
REF
R
SET
C
REF
R
T
C
T
RTCT
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
STAND-ALONE OPERATION
MAX16807
Typical Operating Circuits continued at end of data sheet.
1
________________________________________________________________
Maxim Integrated Products
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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