NCP4352 Datasheet, PDF (1/10 Pages) ON Semiconductor – Secondary Side SMPS ECO Mode Controller

NCP4352
Secondary Side SMPS ECO
Mode Controller for Low
Standby Power
The NCP4352 is a secondary side SMPS controller designed for use
in applications which require extremely low consumption. The device
is capable of detecting “light load” conditions and entering the power
supply into low consumption “ECO mode”.
During ECO mode, the output voltage decreases to an adjustable
level, allowing higher efficiency for light load condition while
keeping lower but regulated voltage supply. Once more energy is
required, the NCP4352 automatically switches back to the normal
mode regulation of output voltage.
During normal power supply operation, the NCP4352 provides
integrated voltage and current feedback regulation, replacing the need
for a shunt regulator. Feedback control is provided through
optocoupler to primary side SMPS controller.
The NCP4352 is available in TSOP−6 package.
Features
• Operating Input Voltage Range: 2.5 V to 36.0 V
• Supply Current < 155 mA
• ±0.5% Reference Voltage Accuracy (T_J = 25°C)
• Constant Voltage Control Loop
• Constant Current Control Loop
• Designed for Use with Any Primary SMPS Controller
• These are Pb−free Devices
Typical Applications
• Offline Adapters for Notebooks, Game Stations and Printers
• High Power AC−DC Converters for TVs, Set−Top Boxes, Monitors
etc.
www.onsemi.com
MARKING
DIAGRAM
TSOP−6
SN SUFFIX
E52AYWG
1
CASE 318G
G
1
E52 = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
VCC
GND
FBC
VSNS
ECODET
ISNS
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 9 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
August, 2015 − Rev. 0
Publication Order Number:
NCP4352/D