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NCP4353ASNT1G
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-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. T
ypical 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. T
ypical 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. T
ypical and Improved Load Detection Comparison Waveforms
ORDERING INFORMA
TION
Device
Marking
Adjustable
V
min
Current
Regulation
LED
Driver
Package
Shipping
†
NCP4353ASNT1G
A53
No
Ye
s
No
TSOP−6
(Pb−Free)
3000 / T
ape & Reel
NCP4353BSNT1G
B53
Ye
s
No
No
TSOP−6
(Pb−Free)
3000 / T
ape & Reel
NCP4354ADR2G
NCP4354A
Ye
s
Ye
s
Ye
s
SOIC−8
(Pb−Free)
2500 / T
ape & Reel
NCP4354BDR2G
NCP4354B
Ye
s
No
Ye
s
SOIC−8
(Pb−Free)
2500 / T
ape & Reel
†
For
information on tape and reel specifications, including part orientation and tape sizes, please refer to our T
ape and Reel
Packaging
Specifications Brochure, BRD801
1/D.
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P17
NCP4353ASNT1G
Mfr. #:
Buy NCP4353ASNT1G
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:
T/T
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Union
Products related to this Datasheet
NCP4353ASNT1G
NCP4353BSNT1G
NCP4354BDR2G
NCP4354ADR2G