LinkSwitch-4
Absolute Maximum Ratings1
Junction Temperature .................................................-40 to 150 °C
Lead Temperature2................................................................260 °C
SUPPLY VOLTAGE Pin ..................................................-0.5 V to 18 V
FEEDBACK Pin Input Voltage ........................................ -0.5 V to 4 V
FEEDBACK Pin Input Current ..................................-20 mA to 20 mA
CURRENT SENSE Pin Input Voltage............................... -0.5 V to 4 V
CURRENT SENSE Pin Input Current.........................-20 mA to 20 mA
BASE DRIVE Pin Voltage..............................................-0.5 V to 18 V
EMITTER DRIVE Pin Voltage........................................-0.5 V to 18 V
SUPPLEMENTARY BASE DRIVE Pin Voltage...................-0.5 V to 18 V
Notes:
1. Maximum ratings specified may be applied, one at a time
without causing permanent damage to the product. Exposure to
Absolute Maximum ratings for extended periods of time may
affect product reliability.
2. Soldering, 10 seconds.
Thermal Resistance
Thermal Resistance: D Package: (SO-8)
Notes:
(qJA) ................................................. 120 °C/W 1. IC mounted on typical (1oz) copper clad PCB with 164 mm2
(qJB)1,2 .................................................30 °C/W
S Package (SOT-23-6)
ground plane surrounding GROUND pin(s).
2. qJB measured to GROUND pin terminal of device at the surface
of the PCB.
(qJA).................................................170 °C/W
(qJB)2 ..................................................60 °C/W
Conditions
Parameter
Symbol
TJ = -25 to 125 °C
Min
Typ
Max
Units
(Unless Otherwise Specified)
Normal Operating Conditions
External Supply
VVCC
5
16.5
1200
150
V
Voltage
Transformer
Resonance frequency
(In-Circuit)
fRES
180
130
kHz
Thermal Shutdown
Temperature
TSD
140
70
°C
°C
Thermal Shutdown
Hysteresis
TSDH
VOLTAGE SUPPLY Pin
LNK4114D / LNK4214D
6
Easy Start
Enable Voltage
VCC(ES)
V
LNK4115D / LNK4215D for NSTARTUP Cycles,
then 6 V
10
VVCC(RUN)
VVCC(SLEEP)
VVCC(LOW)
IVCC(RUN)
IVCC(NL)
To Enter Initialize Mode
11.5
13.5
4.5
5
15.5
5.1
Supply Voltage
Supply Current
V
Average at fMAX, Excluding Base Drive Current
2
mA
No-Load
0.6
IVCC(SLEEP)
In Sleep Mode
15
mA
VCC Shunt Trigger
Level
VCC(HI)
LNK4XX3D / LNK4XX4D / LNK4XX5D
15.5
V
FEEDBACK Pin
Feedback
Regulation Level
VFB(REG)
RFB(IN)
GFB(OVP)
GFB(UVP)
TJ = 25 °C
1.96
1.98
2
2.00
V
Feedback Input
Resistance
Effective Input Resistance
0 < VFB < 5
MΩ
Feedback OVP Ratio
Feedback UVP Ratio
1.19
0.62
1.20
0.63
1.21
0.64
LNK40x3D/S
14
Rev. F 05/18
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