LNK623-626
Conditions
SOURCE = 0 V; TJ = -40 to ±21 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
Control Functions (cont.)
Minimum Switch
“On”-Time
tON(min)
(See Note 3)
700
ns
Feedback Pin
Sampling Delay
tFB
IS±
(See Figure ±9)
2.31
2.11
280
2.71
330
μs
FB Voltage > VFBth
DRAIN Supply
Current
LNK623/4
440
480
120
-3.4
-4.1
-2.3
-3.2
120
160
600
-±.8
-2.0
-±.0
-±.4
FB Voltage = VFBth -0.±,
Switch ON-Time = tON
(MOSFET Switching at fOSC
μA
IS2
LNK621
LNK626
)
LNK623/4
LNK621/6
LNK623/4
LNK621/6
-1.0
-7.0
-4.0
-1.6
ICH±
VBP = 0 V
VBP = 4 V
BYPASS Pin
Charge Current
mA
ICH2
VBP
VBPH
BYPASS Pin
Voltage
1.61
0.70
6.2
6.00
±.00
6.1
6.21
±.20
6.8
V
V
V
BYPASS Pin
Voltage Hysteresis
BYPASS Pin
Shunt Voltage
VSHUNT
Circuit Protection
LNK623
di/dt = 10 mA/μs , TJ = 21 °C
±96
233
307
4±9
±70
±31
2±0
210
330
410
2±1
±42
60
221
268
313
482
LNK624
di/dt = 60 mA/μs , TJ = 21 °C
Current Limit
ILIMIT
mA
LNK621
di/dt = 80 mA/μs , TJ = 21 °C
LNK626
di/dt = ±±0 mA/μs , TJ = 21 °C
TJ = 21 °C
(See Note 3)
Leading Edge
Blanking Time
tLEB
TSD
ns
°C
°C
Thermal Shutdown
Temperature
±10
Thermal Shutdown
Hysteresis
TSDH
12
Rev. E 09/09
www.powerint.com
POWERINT [ Power Integrations ]
