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NCP4354ADR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
NCP4353, NCP4354
www.onsemi.com
13
D1
C1 C2
VOUT
D2
R4
R2
R5
R6
R8
C4
R10
R9
R7
GND
OFFDET
DRIVE
VMIN
~
VCC
FB
GND
DRV
CS
HV
VCC
VCC
OPTO1
C3
R14
C6
C7
C8
D3
T1
R15
D4
D5
NCP4353B
VIN
VCC
VSNS
D6
D7
R1
Figure 29. Typical Application Schematic for NCP4353B with Flyback
Primary
Controller
Activity
V
OFFDET
10% V
OUT
(V
CC
)
I
OUT
Very low or no load detected,
off mode activated
Normal operation Skip
Off mode
Figure 30. OFF Mode Detection
NCP4353, NCP4354
www.onsemi.com
14
Figure 31. Typical Application States and Waveforms in OFF Mode with NCP1246 Primary Controller
D1
C1 C2
VOUT
D2
R4
R2
R5
R6
R8
C4
R10
R9
R7
R3
LED
VSNS
GND
OFFDET
FBC
VMIN
LED1
OPTO1
C3
NCP4354B
ON/OFF
VCC
D8
R17
R16
T2
Figure 32. Improved Load Detection Connection
NCP4353, NCP4354
www.onsemi.com
15
Figure 33. Typical and Improved Load Detection Comparison Waveforms
ORDERING INFORMATION
Device Marking
Adjustable
V
min
Current
Regulation
LED
Driver
Package Shipping
†
NCP4353ASNT1G A53 No Yes No TSOP−6
(Pb−Free)
3000 / Tape & Reel
NCP4353BSNT1G B53 Yes No No TSOP−6
(Pb−Free)
3000 / Tape & Reel
NCP4354ADR2G NCP4354A Yes Yes Yes SOIC−8
(Pb−Free)
2500 / Tape & Reel
NCP4354BDR2G NCP4354B Yes No Yes SOIC−8
(Pb−Free)
2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

NCP4354ADR2G

Mfr. #:
Buy NCP4354ADR2G
Manufacturer:
ON Semiconductor
Description:
Current & Power Monitors & Regulators SECONDARY SIDE SMPS OFF M
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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