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NCP4355: Secondary Side Controller, SMPS Off Mode, for Low Standby Power Adapters

Datasheet: Secondary Side SMPS OFF Mode Controller for Low Standby Power
Rev. 1 (197.0kB)
Product Overview
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The NCP4355 is a secondary side SMPS controller designed for use in applications which require extremely low no load power consumption. The device is capable of detecting no load conditions and entering the power supply into a low consumption OFF mode. During OFF mode, the primary side controller is turned off and energy is provided by the output capacitors thus eliminating the power consumption required to maintain regulation. During OFF mode, the output voltage relaxes and is allowed to decrease to an adjustable level. Once more energy is required, the NCP4355 automatically restarts the primary side controller by ONOFF current that flows through ONOFF optocoupler. The NCP4355 controls the primary controller with an Active ON signal, meaning that it only drives optocoupler current during ON mode to minimize consumption during OFF mode.
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1937BADAPGEVB Active
Pb-free
90 W Adapter PFC+QR 10 MW Evaluation Board
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP4355ADR2G Obsolete
Pb-free
Halide free
NCP4355, with Constant Current Current Loop and LED driver SOIC-8 751-07 1 260 Tape and Reel 2500  
NCP4355BDR2G Obsolete
Pb-free
Halide free
NCP4355 SOIC-8 751-07 1 260 Tape and Reel 2500  
NCP4355CDR2G Active
Pb-free
Halide free
NCP4355, with Constant Current Current Loop SOIC-8 751-07 1 260 Tape and Reel 2500 $0.28
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 2 to 4

Product
Description
Pricing ($/Unit)
Compliance
Status
VCC Max (V)
Vref Typ (V)
ICC Max (A)
TA Min (°C)
TA Max (°C)
Package Type
NCP4355CDR2G  
 $0.28 
Pb
H
 Active   
36
1.25
0.000135
-40
125
SOIC-8
Case Outlines
751-07   
Previously Viewed Products
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Computer Solutions with NCP1937BADAPGEVB Evaluation Board
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