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參數(shù)資料
| 型號： | DS3988T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 8-Channel Cold-Cathode Fluorescent Lamp Controller |
| 中文描述： | POWER FACTOR AND FLUORESCENT LIGHT CONTROLLER, 80 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, TQFP-48 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大?。?/td> | 791K |
| 代理商： | DS3988T |
General Description
The DS3988 is an 8-channel controller for cold-cathode
fluorescent lamps (CCFLs) used to backlight liquid
crystal displays (LCDs) in TV and PC monitor applica-
tions. The DS3988 supports configurations of 1 to 8
lamps, and multiple DS3988 controllers can be cascad-
ed to support applications requiring more than 8 lamps.
Applications
LCD Televisions
LCD PC Monitors
Features
High-Density CCFL Controller for LCD TV and PC
Monitor Backlights
Can Be Easily Cascaded to Support More Than
8 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
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
Burst Dimming Frequency (22.5Hz to 440Hz)
Can Be Synchronized to External Sources for the
Lamp and DPWM Frequencies
<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
Numbers and Date Codes
4.5V to 5.5V Single-Supply Operation
-40°C to +85°C Temperature Range
48-Lead TQFP (7mm x 7mm) Package
D
8-Channel Cold-Cathode
Fluorescent Lamp 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.
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OVD8
LCM8
GB8
GA8
OVD7
LCM7
GB7
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OVD6
LCM6
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GA6
LCM1
OVD1
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GA1
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48-LEAD TQFP
7 x 7 x 1.0mm
G
TOP VIEW
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DS3988
Pin Configuration
Rev 0; 4/05
Ordering Information
Typical Operating Circuit appears at end of data sheet.
PART
DS3988T
DS3988T+
+
Denotes lead-free package.
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
48 TQFP
48 TQFP
I
2
C is a trademark of Philips Corp. Purchase of I
2
C compo-
nents from Maxim Integrated Products, Inc., or one of its subli-
censed 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.
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| DS3991 | Low-Cost CCFL Controller |
| DS3991V | Low-Cost CCFL Controller |
| DS3991VC | Low-Cost CCFL Controller |
| DS3991VT | Low-Cost CCFL Controller |
| DS3992Z-18N | Two-Channel, Push-Pull CCFL Controller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS3988T/T&R | 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| DS3988T+ | 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| DS3988T+T&R | 制造商:Maxim Integrated Products 功能描述:CCFL DRVR 5.5V 8MA - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CCFL CNTRLR 8CH 48LQFP |
| DS3988T+T&R | 功能描述:顯示驅(qū)動器和控制器 8 Ch CCFL Controller RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| DS3991 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Cost CCFL Controller |
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