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DS3882E+T&R

Description
IC ccfl cntrlr dual 28tssop
CategoryPower/power management    The power supply circuit   
File Size438KB,31 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS3882E+T&R Overview

IC ccfl cntrlr dual 28tssop

DS3882E+T&R Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeSSOP
package instruction0.173 INCH, LEAD FREE, TSSOP-28
Contacts28
Reach Compliance Code_compli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesFLUORESCENT LIGHT CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage5.25 V
Minimum input voltage4.75 V
Nominal input voltage5 V
JESD-30 codeR-PDSO-G28
JESD-609 codee3
length9.7 mm
Humidity sensitivity level1
Number of functions2
Number of terminals28
Maximum operating temperature105 °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 supply5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Nominal supply voltage (Vsup)5 V
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency100 kHz
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width4.4 mm
19-5666; Rev 2; 12/10
Dual-Channel Automotive CCFL Controller
General Description
The DS3882 is a dual-channel cold-cathode fluorescent
lamp (CCFL) controller for automotive applications that
provides up to 300:1 dimming. It is ideal for driving
CCFLs used to backlight liquid crystal displays (LCDs)
in navigation and infotainment applications and for dri-
ving CCFLs used to backlight instrument clusters. The
DS3882 is also appropriate for use in marine and avia-
tion applications.
The DS3882 features EMI suppression functionality and
provides a lamp current overdrive mode for rapid lamp
heating in cold weather conditions. The DS3882 sup-
ports configurations of 1 or 2 lamps with fully indepen-
dent lamp control and minimal external components.
Multiple DS3882 controllers can be cascaded to sup-
port applications requiring more than 2 lamps. Control of
the DS3882, after initial programming setup, can be
completely achieved through I
2
C software communica-
tion. Many DS3882 functions are also pin-controllable if
software control is not desired.
Features
Dual-Channel CCFL Controllers for Backlighting
LCD Panels and Instrument Clusters in
Automotive Navigation/Infotainment Applications
Minimal External Components Required
I
2
C Interface
Per-Channel Lamp-Fault Monitoring for Lamp-
Open, Lamp-Overcurrent, Failure to Strike, and
Overvoltage Conditions
Status Register Reports Fault Conditions
Accurate (±5%) Independent On-Board Oscillators
for Lamp Frequency (40kHz to 100kHz) and DPWM
Burst-Dimming Frequency (22.5Hz to 440Hz)
Lamp and DPWM Frequencies can be
Synchronized with External Sources to Reduce
Visual LCD Artifacts in Video Applications
Optional Spread-Spectrum Lamp Clock Reduces
EMI
Lamp Frequency can be Stepped Up or Down to
Move EMI Spurs Out of Band
Lamp Current Overdrive Mode with Automatic
Turn-Off Quickly Warms Lamp in Cold
Temperatures
Analog and Digital Brightness Control
300:1 Dimming Range Possible Using the Digital
Brightness Control Option
Programmable Soft-Start Minimizes Audible
Transformer Noise
On-Board Nonvolatile (NV) Memory Allows Device
Customization
8-Byte NV User Memory for Storage of Serial
Numbers and Date Codes
Low-Power Standby Mode
4.75V to 5.25V Single-Supply Operation
Temperature Range: -40°C to +105°C
28-Pin TSSOP Package
DS3882
Applications
Automotive LCDs
Instrument Clusters
Marine and Aviation LCDs
Pin Configuration
TOP VIEW
FAULT 1
A0 2
SDA 3
SCL 4
LSYNC 5
LOSC 6
BRIGHT 7
PSYNC 8
POSC 9
A1 10
GND_S 11
SVML 12
SVMH 13
V
CC
14
+
28 OVD2
27 LCM2
26 GB2
25 GA2
DS3882
24 V
CC
23 PDN
22 LCO
21 GND
20 STEP
19 N.C.
18 OVD1
17 LCM1
16 GB1
15 GA1
Ordering Information
PART
DS3882E+C
DS3882E+T&R/C
TEMP RANGE
-40°C to +105°C
-40°C to +105°C
PIN-PACKAGE
28 TSSOP
28 TSSOP
TSSOP
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
Typical Operating Circuit appears 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.

DS3882E+T&R Related Products

DS3882E+T&R DS3882E+
Description IC ccfl cntrlr dual 28tssop IC ccfl cntrlr dual 28tssop
Is it Rohs certified? conform to conform to
Maker Maxim Maxim
Parts packaging code SSOP SSOP
package instruction 0.173 INCH, LEAD FREE, TSSOP-28 0.173 INCH, LEAD FREE, TSSOP-28
Contacts 28 28
Reach Compliance Code _compli unknown
ECCN code EAR99 EAR99
Analog Integrated Circuits - Other Types FLUORESCENT LIGHT CONTROLLER FLUORESCENT LIGHT CONTROLLER
control mode VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 5.25 V 5.25 V
Minimum input voltage 4.75 V 4.75 V
Nominal input voltage 5 V 5 V
JESD-30 code R-PDSO-G28 R-PDSO-G28
JESD-609 code e3 e3
length 9.7 mm 9.7 mm
Humidity sensitivity level 1 1
Number of functions 2 2
Number of terminals 28 28
Maximum operating temperature 105 °C 105 °C
Minimum operating temperature -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP
Encapsulate equivalent code TSSOP28,.25 TSSOP28,.25
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 260
power supply 5 V 5 V
Certification status Not Qualified Not Qualified
Maximum seat height 1.1 mm 1.1 mm
Nominal supply voltage (Vsup) 5 V 5 V
surface mount YES YES
Switch configuration PUSH-PULL PUSH-PULL
Maximum switching frequency 100 kHz 100 kHz
Temperature level INDUSTRIAL INDUSTRIAL
Terminal surface Matte Tin (Sn) Matte Tin (Sn)
Terminal form GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature 30 30
width 4.4 mm 4.4 mm
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