lnk623 Power Integrations, Inc., lnk623 Datasheet - Page 12

• Manufacturer Part Number: lnk623
• Description: Energy-efficient, Off-line Switcher With Accurate Primary-side Constant-voltage Cv Control
• Manufacturer: Power Integrations, Inc.

Rev. C 12/08
Minimum Switch
“On”-Time
Feedback Pin
Sampling Delay
DRAIN Supply
Current
BYPASS Pin
Charge Current
BYPASS Pin
Voltage
BYPASS Pin
Voltage Hysteresis
BYPASS Pin
Shunt Voltage
Circuit Protection
Current Limit
Leading Edge
Blanking Time
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
Control Functions (cont.)
12
Parameter
LNK623-626
Symbol
V
t
ON(min)
V
T
I
I
I
V
SHUNT
t
T
LIMIT
t
I
I
CH1
CH2
LEB
BPH
SDH
S1
S2
FB
SD
BP
(MOSFET Switching at f
SOURCE = 0 V; T
FB Voltage = V
Switch ON-Time = t
di/dt = 110 mA/μs , T
V
V
(Unless Otherwise Specifi ed)
di/dt = 50 mA/μs , T
di/dt = 60 mA/μs , T
di/dt = 80 mA/μs , T
BP
BP
= 0 V
= 4 V
FB Voltage > V
(See Figure 19)
Conditions
(See Note 3)
(See Note 3)
T
LNK623
LNK624
LNK625
LNK626
J
FBth
= 25 °C
J
-0.1,
= -40 to 125 °C
ON
OSC
LNK623/4
LNK625/6
LNK623/4
LNK625/6
J
J
J
FBth
J
)
= 25 °C
= 25 °C
= 25 °C
= 25 °C
LNK623/4
LNK625
LNK626
2.35
5.65
0.70
Min
-5.0
-7.0
-4.0
-5.6
196
233
307
419
170
135
6.2
2.55
6.00
1.00
Typ
700
280
440
480
520
-3.4
-4.5
-2.3
-3.2
210
250
330
450
215
142
6.5
60
Max
2.75
6.25
1.20
-1.8
-2.0
-1.0
-1.4
330
520
560
600
225
268
353
482
150
6.8
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Units
mA
mA
μA
ns
μs
ns
°C
°C
V
V
V