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DS3984

DS3984的特点(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
♦ 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
♦ I2C-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
♦ 32-Lead TQFP (7mm x 7mm) Package or 28-Pin SO (300 mils) Package DS3984

DS3984的说明(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 applications. The DS3984 supports configurations of 1 to 4 lamps, and multiple DS3984 controllers can be cascaded to support applications requiring more than 4 lamps.

DS3984的用途(Applications)

●LCD Televisions
●LCD PC Monitors

DS3984的技术参数(Specifications)

Voltage on VCC, SDA, and SCL
     Relative to Ground...............................................................-0.5V to +6.0V
Voltage on Leads Other than VCC,
     SDA, and SCL…………………………..-0.5V to (VCC + 0.5V),not to exceed +6.0V
Operating Temperature Range ..............................................-40°C to +85°C
EEPROM Programming Temperature Range ..............................0°C to +70°C
Storage Temperature Range ...............................................-55°C to +125°C
Soldering Temperature........................................See J-STD-020 Specification

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

DS3984的全国供应商

  供应商 型号 厂家 封装 批号 数量 备注 诚信积分 日期
北京金科飞洋科技有限公司  北京市
010-62512882/62514282
DS3984 DALLAS uMAX 06/07+ 560 绝对全新原装 5001分-6000分
5449
2009-7-4 10:46:31
北京贝东基业科技有限公司  北京市
010-62557646/62557795/82472385
DS3984 MAXIM 07+ 100 真实库存!国内原装现货!! 1001分-2000分
1609
2009-7-4 9:09:50
金科飞洋科技有限公司  北京市
010-62512882
DS3984 DALLAS uMAX 06/07+ 560 绝对全新原装现货 667 2009-7-4 8:05:05
安普讯电子  北京市
010-82120979/82120379/51601976
DS3984 MAX 1,268 全新原装现货,欢迎查询! 4001分-5000分
4806
2009-7-3 13:03:20
香港宏图伟业集团有限公司  深圳
0755-83781096-803
DS3984T DS TQFP 638 1000 原装进口货,市场最优价格 3001分-4000分
3231
2009-7-4 17:36:15
深圳科庆电子有限公司  深圳
0755-89807886-816/801
DS3984T DALLAS QFP 638 1000 原装进口深圳现货! 5001分-6000分
5831
2009-7-4 16:30:02

DS3984

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4路冷阴极荧光灯控制器

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