参数资料
| 型号： | DS3984T+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC CCFL CNTRLR 4CH 32-TQFP |
| 标准包装： | 1 |
| 类型： | CCFL 控制器 |
| 频率： | 40 ~ 80 kHz |
| 电流 - 电源： | 12mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 32-TQFP |
| 供应商设备封装： | 32-TQFP（7x7） |
| 包装： | 托盘 |
Rev 1; 5/07
4-Channel Cold-Cathode
Fluorescent Lamp Controller
General Description
The DS3984 is a 4-channel controller for cold-cathode
fluorescent lamps (CCFLs) used to backlight liquid
crystal displays (LCDs) in TV and PC monitor applica-
tions. The DS3984 supports configurations of 1 to 4
lamps, and multiple DS3984 controllers can be cascad-
ed to support applications requiring more than 4 lamps.
Applications
LCD Televisions
LCD PC Monitors
Ordering Information
Features
? High-Density CCFL Controller for LCD TV and PC
Monitor Backlights
? Can Be Easily Cascaded to Support More Than
4 Lamps
? Minimal External Components
? Analog Brightness Control
? Per-Channel Lamp Control Ensures Equal
Brightness Among Lamps and Maximizes Lamp
Life
? Gate Driver Phasing Minimizes DC Supply Current
Surges
PART
DS3984T
DS3984T+
DS3984Z
DS3984Z+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
32 TQFP
32 TQFP
28 SO.300
28 SO.300
? Per-Channel Lamp Fault Monitoring for Lamp
Open, Lamp Overcurrent, Failure to Strike, and
Overvoltage Conditions
? Accurate (±5%) Independent On-Board Oscillators
for Lamp Frequency (40kHz to 80kHz) and DPWM
+Denotes a lead-free package.
Pin Configurations
Burst Dimming Frequency (22.5Hz to 440Hz)
? Can Be Synchronized to External Sources for the
Lamp and DPWM Frequencies
TOP VIEW
LOSC 1
A0 2
PSYNC 3
POSC 4
BRIGHT 5
28 LSYNC
27 FAULT
26 SCL
25 SDA
24 OVD4
? <10% to 100% Dimming Range
? Programmable Soft-Start Minimizes Audible
Transformer Noise
? I 2 C-Compatible Serial Port and On-Board
Nonvolatile (NV) Memory Allow Device
Customization
? 8-Byte NV User Memory for Storage of Serial
SVM 6
GA1 7
GB1 8
LCM1 9
OVD1 10
GA2 11
GB2 12
LCM2 13
OVD2 14
DS3984
23 LCM4
22 GB4
21 GA4
20 OVD3
19 LCM3
18 GB3
17 GA3
16 V CC
15 GND
Numbers and Date Codes
? 4.5V to 5.5V Single-Supply Operation
? -40°C to +85°C Temperature Range
? 32-Lead TQFP (7mm x 7mm) Package or
28-Pin SO (300 mils) Package
28-SO-300
Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
______________________________________________ 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
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3984T+ | 功能描述:显示驱动器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| DS3984Z | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:4-Channel Cold-Cathode Fluorescent Lamp Controller |
| DS3984Z+ | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:4-Channel Cold-Cathode Fluorescent Lamp Controller |
| DS3988 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:8-Channel Cold-Cathode Fluorescent Lamp Controller |
| DS3988T | 功能描述:显示驱动器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
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