NCP4328BSNT1G Description

The NCP4328BSNT1G is a secondary side SMPS controller designed for use in applications that requires constant current and/or constant current regulation. The NCP4328BSNT1G consists of two OTA amplifiers for voltage and current loop regulation with precise internal voltage references. Outputs of OTAs are open drain type (OTAs sink current only). The NCP4328BSNT1G includes a LED driver pin implemented with an open drain MOSFET driven by a 1 kHz square wave with a 12.5% duty cycle working when VCC is above UVLO for indication purposes.

NCP4328BSNT1G Features

Operating Input Voltage Range: 2.5 V to 36.0 V

Supply current < 100 A

±0.5% Reference Voltage Accuracy (TJ = 25°C)

Constant Voltage and Constant Current (A versions) Control Loop

Indication LED PWM Modulated Driver (NCP4328B)

Pb?Free, Halogen Free/BFR Free and are RoHS Compliant

NCP4328BSNT1G Applications

Offline Adapters for Notebooks, Game Stations, and Printers

LED Lightening

High Power AC?DC Converters for TVs, Set?Top Boxes, Monitors, etc.