LNK454/456-458/460
Conditions
SOURCE = 0 V; TJ = -40 to +125 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
Control Function (cont.)
VFB > VFB(SK)
(MOSFET not switching)
IS1
450
µA
LNK454
530
585
LNK456
VFB = 0 V
DRAIN Supply Current
IS2
(MOSFET switching
at fMAX
LNK457
LNK458
LNK460
650
µA
)
730
1050
LNK454
LNK456/457/458
LNK460
-5.9
-8.3
-11.9
-3.4
-5.2
-8.0
-4.2
-5.9
-8.5
-2.4
-3.7
-5.7
-2.5
-3.5
-5.1
-1.4
-2.2
-3.4
VBP = 0 V,
TJ = 25 °C
ICH1
mA
mA
BYPASS Pin
Charge Current
LNK454
VBP = 4 V,
TJ = 25 °C
ICH2
LNK456/457/458
LNK460
BYPASS Pin Voltage
VBP
5.60
5.85
6.15
V
V
BYPASS Pin
Shunt Voltage
VSHUNT
IBP = 2 mA
5.9
6.2
6.6
Circuit Protection
di/dt = 160 mA/µs
LNK454
LNK456
LNK457
LNK458
LNK460
255
510
290
580
325
650
TJ = 25 °C
di/dt = 325 mA/µs
TJ = 25 °C
di/dt = 490 mA/µs
Current Limit
ILIMIT
800
910
1020
1288
2083
mA
TJ = 25 °C
di/dt = 650 mA/µs
1012
1637
160
1150
1860
TJ = 25 °C
di/dt = 980 mA/µs
TJ = 25 °C
Leading Edge
Blanking Time
tLEB
tILD
TJ = 25 °C
TJ = 25 °C
200
150
142
ns
ns
°C
Current Limit Delay
Thermal Shutdown
Temperature
TSD
135
150
Thermal Shutdown
Hysteresis
TSD(H)
75
°C
V
BYPASS Pin Power-up
Reset Threshold Voltage
VBP(RESET)
4.9
12
Rev. C 10/11
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