Datasheet NCP4328 (ON Semiconductor)

link to page 8 NCP4328 Secondary Side CV/CC Controller 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
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current loop regulation with precise internal voltage references. Outputs of OTAs are open drain type (OTAs sink current only).
MARKING
The NCP4328B includes a LED driver pin implemented with an
DIAGRAMS
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. 5 The NCP4328A is available in TSOP−5 package while the
TSOP−5
NCP4328B is available in TSOP−6 package. XXXAYWG 5
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G 1
CASE 483 Features
1 • Operating Input Voltage Range: 2.5 V to 36.0 V • Supply current < 100 mA • ±0.5% Reference Voltage Accuracy (TJ = 25°C) • Constant Voltage and Constant Current (A versions) Control Loop
TSOP−6
XXXAYWG •
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Indication LED PWM Modulated Driver (NCP4328B) G
CASE 318G
• 1 These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS 1 Compliant XXX = Specific Device Code
Typical Applications
A = Assembly Location • Y = Year Offline Adapters for Notebooks, Game Stations and Printers • W = Work Week LED Lightening G = Pb−Free Package • High Power AC−DC Converters for TVs, Set−Top Boxes, Monitors (Note: Microdot may be in either location) etc.
ORDERING INFORMATION
See detailed ordering, marking and shipping information on page 8 of this data sheet. © Semiconductor Components Industries, LLC, 2015
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Publication Order Number:
July, 2015 − Rev. 2 NCP4328/D