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See Technical Specifications

NCP4328ASNT1G

Secondary Side Controller, Constant Voltage / Constant Current (CV / CC)

Manufacturer:

ON Semiconductor, LLC
Mfr.Part #:

NCP4328ASNT1G
Datasheet:

NCP4328ASNT1G Datasheet (PDF)
Applications:

Secondary Controller, Quasi-Resonant Switchmode Power Supplies
Voltage - Input:

2.5V ~ 36V
Number of Outputs:

1
Voltage - Output:

Adjustable
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NCP4328ASNT1G General Description

The NCP4328 is a secondary side SMPS controller designed for use in applications which requires constant current and/or constant current regulation. The NCP4328x 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 NCP4328B 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 purpose. The NCP4328A is available in TSOP5 package while the NCP4328B is available in TSOP6 package.

Key Features

Operating Input Voltage Range: 2.5 V to 36.0 V
Supply current < 100 uA
0.5% Reference Voltage Accuracy (TJ = 25C)
Constant Voltage and Constant Current Control Loop
Indication LED PWM Modulated Driver (NCP4328B)

Application

CC CV Charging
LED Lighting

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Special Purpose Regulators	Series	-
Applications	Secondary Controller, Quasi-Resonant Switchmode Power Supplies	Voltage - Input	2.5V ~ 36V
Number of Outputs	1	Voltage - Output	Adjustable
Operating Temperature	-40°C ~ 125°C	Mounting Type	Surface Mount
Base Product Number	NCP4328