參數(shù)資料
型號(hào)： DS3881ER
廠商： Maxim Integrated Products, Inc.
英文描述： Single-Channel Automotive CCFL Controller
中文描述： 單通道汽車CCFL控制器
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 496K
代理商： DS3881ER
General Description
The DS3881 is a single-channel cold-cathode fluores-
cent 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
DS3881 is also appropriate for use in marine and avia-
tion applications.
The DS3881 features EMI suppression functionality and
provides a lamp current overdrive mode for rapid lamp
heating in cold weather conditions. The DS3881 sup-
ports a single lamp configuration with fully independent
lamp control and minimal external components.
Multiple DS3881 controllers can be cascaded to sup-
port applications requiring more than one lamp. Control
of the DS3881, after initial programming setup, can be
completely achieved through I
2
C* software communi-
cation. Many DS3881 functions are also pin-controllable
if software control is not desired.
Applications
Automotive LCDs
Instrument Clusters
Marine and Aviation LCDs
Features
o
Single-Channel CCFL Controller for Backlighting
LCD Panels and Instrument Clusters in
Automotive Navigation/Infotainment Applications
o
Minimal External Components Required
o
I
2
C Interface
o
Per-Channel Lamp-Fault Monitoring for Lamp-
Open, Lamp-Overcurrent, Failure to Strike, and
Overvoltage Conditions
o
Status Register Reports Fault Conditions
o
Accurate (±5%) Independent On-Board Oscillators
for Lamp Frequency (40kHz to 100kHz) and DPWM
Burst-Dimming Frequency (22.5Hz to 440Hz)
o
Lamp and DPWM Frequencies can be
Synchronized with External Sources to Reduce
Visual LCD Artifacts in Video Applications
o
Spread-Spectrum Lamp Clock Reduces EMI
o
Lamp Frequency can be Stepped Up or Down to
Move EMI Spurs Out of Band
o
Lamp Current Overdrive Mode with Automatic
Turn-Off Quickly Warms Lamp in Cold
Temperatures
o
Analog or Digital Brightness Control
o
300:1 Dimming Range Possible Using the Digital
Brightness Control Option
o
Programmable Soft-Start Minimizes Audible
Transformer Noise
o
On-Board Nonvolatile (NV) Memory Allows Device
Customization
o
8-Byte NV User Memory for Storage of Serial
Numbers and Date Codes
o
Low-Power Standby Mode
o
4.75V to 5.25V Single-Supply Operation
o
Temperature Range: -40°C to +105°C
o
24-Pin TSSOP Package
D
Single-Channel Automotive CCFL Controller
______________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
24
23
22
1
2
3
4
5
6
7
GB1
GA1
SCL
SDA
A0
FAULT
TOP VIEW
V
CC
PDN
LCO
BRIGHT
LOSC
21
8
GND
PSYNC
20
9
STEP
POSC
19
10
N.C.
A1
18
11
OVD1
GND_S
17
12
LCM1
SVML
16
13
SVMH
15
14
V
CC
LSYNC
TSSOP
DS3881
Pin Configuration
Rev 0; 3/06
+
Denotes lead-free package.
Ordering Information
Typical Operating Circuit appears at end of data sheet.
PART
TEMP RANGE
-40°C to +105°C
-40°C to +105°C
PIN-PACKAGE
24 TSSOP (173 mils)
24 TSSOP (173 mils)
DS3881E+
DS3881E+T&R
*
Purchase of I
2
C components from 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 components in an I
2
C system, provided that the system conforms to the I
2
C
Standard Specification as defined by Philips.
相關(guān)PDF資料
PDF描述
DS3881ET Single-Channel Automotive CCFL Controller
DS3882 Dual-Channel Automotive CCFL Controller
DS3882E Dual-Channel Automotive CCFL Controller
DS3882ER Dual-Channel Automotive CCFL Controller
DS3882ET Dual-Channel Automotive CCFL Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS3881ET 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single-Channel Automotive CCFL Controller
DS3882 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller
DS3882_10 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller
DS3882E 制造商:Maxim Integrated Products 功能描述:CAR DUAL CCFL CONTROL TSSOP - 28 - Rail/Tube
DS3882E/T&R 制造商:Maxim Integrated Products 功能描述:CAR DUAL CCFL CTRL TSSOP-28 T&R - Tape and Reel
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