onsemi NCL38046 High-Performance Op Amps

onsemi NCL38046 High-Performance Operational Amplifiers (Op Amps) are constant current and voltage amplifiers with a low input offset voltage. NCL38046 can extend the system dimming range to under 1%. These op amps also support programmable constant power regulation to protect LED loads and provide a wide output operating range.

Features

Precise constant current regulation with ±0.5mV tolerance
Compatible with multiple dimming input signals
- ADIM pin receives analog voltage dimming input
- PWM pin receives PWM duty dimming input
Constant power regulation
Standby mode
3.3V reference voltage output

Dimming curve modulation
- Maximum and minimum dimming input limit
- Minimum dimming output level limit
- Linear or logarithmic dimming curve, externally selectable
SOIC-8 package
Lead-free

Applications

Power conversion
Lighting ballasts

Application Schematic

Application Circuit Diagram - onsemi NCL38046 High-Performance Op Amps

Simplified Block Diagram

Block Diagram - onsemi NCL38046 High-Performance Op Amps

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