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AT1741
Preliminary Product Information
2-Channel PWM Controller for CCFL Backlight
Features
• High-accuracy reference voltage circuit (±2%). • Built-in short-circuit protection circuit. • Built-in Undervoltage Lockout protection. • Internal 2.5V Reference supply. • Variable Dead time provides control over total
Range.
Applications
• LCD CCFL Backlight • Portable equipment
General Description
The AT1741 is 2-channel PWM switching regulator controllers that contains an on-chip 2.5V reference, two error amplifier, an adjustable oscillator, two dead-time comparators, undervoltage lockout circuitry and 2 common-emitter output. It is idea for step-up, step-down, and inverting converter.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.