DS3988 Datasheet PDF | Maxim Integrated

Maxim Integrated DS3988

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 applications. The DS3988 supports configurations of 1 to 8 lamps, and multiple DS3988 controllers can be cascaded to support applications requiring more than 8 lamps.

Part No.	DS3988
Datasheet	DS3988 Download
Manufacturer	Maxim Integrated
Description	8-Channel Cold-Cathode Fluorescent Lamp Controller
Buy	Stock & Price

GENERAL DESCRIPTION

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 DS3988

APPLICATIONS

LCD Televisions LCD PC Monitors Ordering Information PART DS3988T DS3988T+ TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 48 TQFP 48 TQFP +Denotes lead-free package. Pin Configuration SVM BRIGHT GND PO...