LinkSwitch-4
Conditions
TJ = -25 to 125 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
FEEDBACK Pin (Cont.)
Feedback Current Low
Mains Threshold
IFBHT(LO)
-0.495
-1.05
-0.412
-0.31
-0.75
mA
mA
Feedback Current
Start Mains Threshold
IFBHT(START)
-0.9
1.5
Fixed for LNK40x2S and LNK43x2S
RCS2 = 100 Ω
1.5
2.2
VOUT
RCS2 = 270 Ω
RCS2 = 470 Ω
RCS2 = 1000 Ω
RCS2 = 100 Ω
RCS2 = 270 Ω
RCS2 = 470 Ω
RCS2 = 1000 Ω
≤0.7
VOUT(CV)
2.5
Feedback
Blanking Time
tFB(BL)
ms
2.5
0.75
1.1
VOUT
>0.7
VOUT(CV)
1.25
1.25
600
700
1700
LNK40x3S / LNK40x3D
LNK43xxS / LNK43xxD
LNK4xx5D
Start-up Cycle Count
NSTARTUP
Transient Detect
Pulse Duration
LNK40x3S / LNK40x3D / LNK40x4D / LNK4114D /
LNK4214D / LNK4115D / LNK4215D
tTD
100
60
ns
LNK40x3S / LNK40x3D / LNK40x4D / LNK4114D /
LNK4214D / LNK4115D / LNK4215D / LNK4323S
/ LNK4323D
Transient Detect
Threshold
VTD
mV
CURRENT SENSE Pin
LNK40x2S / LNK43x2S
LNK40x3S
-88
-56
RCS2= 100 Ω
LNK40x3D
LNK40x4D
Outside Primary
LNK4114D
Primary Current Sense
Input Minimum
Threshold
R
CS2= 270 Ω
CS2= 470 Ω
-73
-94
Current Sense
Blanking Time
tCS(B)
LNK4214D
LNK4115D
LNK4215D
VCS(MIN)
mV
R
LNK4323S
LNK4323D
(Set by External
RCS2= 1000 Ω
-127
Resistor RCS2
)
Primary Current Sense
Input Maximum
Threshold
Outside Primary Current
Sense Blanking Time
tCS(B)
VCS(OCP)
VCS(MAX)
Over-Current Protect
Normal Regulation
-350
-380
-340
-360
-330
-340
mV
mV
Primary Current Sense
Turn-Off Response
Time
Outside Primary Current Sense
tCS(OFF)
120
ns
Blanking Time tCS(B)
TJ = 25 °C
Except LNK4115D, LNK4214D, LNK4215D
-62
-60.8
-59.6
Primary Current Sense
Threshold for CC
Operation
LNK4115D Only
LNK4214D Only
LNK4215D Only
-68
-105
-119
VCS(CC)
mV
15
Rev. F 05/18
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