品牌索引
产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍 DS3988Features
♦ 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 ♦ 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 ♦ 48-Lead TQFP (7mm x 7mm) Package |
