| ♦ 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 |
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. |
| ●LCD Televisions ●LCD PC Monitors |
Voltage on VCC, SDA, and SCL |
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| 厂家 | MAXIM |
| 简要 描述 |
4路冷阴极荧光灯控制器 |
| A | B | C | D | E | F | G | H | I | J |
| K | L | M | N | O | P | Q | R | S | T |
| U | V | W | X | Y | Z | 0 | 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 |
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