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參數(shù)資料
| 型號： | DS3882ER |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual-Channel Automotive CCFL Controller |
| 中文描述： | 雙通道汽車CCFL控制器 |
| 文件頁數(shù)： | 1/30頁 |
| 文件大?。?/td> | 523K |
| 代理商： | DS3882ER |
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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 communi-
cation. Many DS3882 functions are also pin-controllable
if software control is not desired.
Applications
Automotive LCDs
Instrument Clusters
Marine and Aviation LCDs
Features
o
Dual-Channel CCFL Controllers 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
Optional 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 and 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
28-Pin TSSOP Package
D
Dual-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
28
27
26
25
24
23
22
1
2
3
4
5
6
7
OVD2
LCM2
GB2
GA2
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
GB1
SVMH
15
14
GA1
V
CC
LSYNC
TSSOP
DS3882
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
28 TSSOP (173 mils)
28 TSSOP (173 mils)
DS3882E+
DS3882E+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 |
|---|---|
| DS3882ET | Dual-Channel Automotive CCFL Controller |
| DS3902 | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| DS3902U-515 | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| DS3902U-530 | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| DS3906 | Triple NV Low Step Size Variable Resistor Plus Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS3882ET | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller |
| DS3883 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:BTL 9-Bit Data Transceiver |
| DS3883 WAF | 制造商:Texas Instruments 功能描述: |
| DS3883A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:BTL 9-Bit Data Transceiver |
| DS3883AV | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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