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| 型号： | DS3881E+C |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC CCFL CONTROL 24TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 62 |
| 类型： | CCFL 控制器 |
| 频率： | 40 ~ 100 kHz |
| 电流 - 电源： | 12mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
| 其它名称： | DS3881E+ DS3881E+-ND |
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Rev 1; 8/07
Single-Channel Automotive CCFL Controller
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 communica-
tion. Many DS3881 functions are also pin-controllable if
software control is not desired.
Features
? Single-Channel CCFL Controller 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
? Spread-Spectrum Lamp Clock Reduces EMI
? Lamp Frequency can be Stepped Up or Down to
Move EMI Spurs Out of Band
Automotive LCDs
Applications
? Lamp Current Overdrive Mode with Automatic
Turn-Off Quickly Warms Lamp in Cold
Temperatures
Instrument Clusters
Marine and Aviation LCDs
Pin Configuration
? Analog or Digital Brightness Control
? 300:1 Dimming Range Possible Using the Digital
Brightness Control Option
? Programmable Soft-Start Minimizes Audible
Transformer Noise
TOP VIEW
A0 1
24 FAULT
? On-Board Nonvolatile (NV) Memory Allows Device
Customization
SDA 2
SCL 3
LSYNC 4
LOSC 5
BRIGHT 6
PSYNC 7
POSC 8
A1 9
DS3881
23 GB1
22 GA1
21 V CC
20 PDN
19 LCO
18 GND
17 STEP
16 N.C.
? 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
? 24-Pin TSSOP Package
Ordering Information
GND_S 10
SVML 11
SVMH 12
15 OVD1
14 LCM1
13 V CC
PART
DS3881E+
DS3881E+T&R
TEMP RANGE
-40°C to +105°C
-40°C to +105°C
PIN-PACKAGE
24 TSSOP (173 mils)
24 TSSOP (173 mils)
+Denotes lead-free package.
TSSOP
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3881ER | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Channel Automotive CCFL Controller |
| DS3881ET | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Single-Channel Automotive CCFL Controller |
| DS3882 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual-Channel Automotive CCFL Controller |
| DS3882_10 | 制造商:MAXIM 制造商全称: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 |
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