lnk623 Power Integrations, Inc., lnk623 Datasheet - Page 11

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

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Thermal Impedance
Thermal Impedance: P Package:
Absolute Maximum Ratings
DRAIN Voltage .........................................................-0.3 V to 700 V
DRAIN Peak Current: LNK623 .................................... 400 mA
Peak Negative Pulsed DRAIN Current ................... ...... -100 mA
Feedback Voltage ................................................. ....... -0.3 V to 9 V
Feedback Current ................................................. ............. 100 mA
BYPASS Pin Voltage ..................................... ............. -0.3 V to 9 V
Storage Temperature ...................................... .... -65 °C to 150 °C
Output Frequency
Frequency Jitter
Ratio of Output
Frequency at Auto-RST
Maximum Duty Cycle
Feedback Pin Voltage
Feedback Pin Voltage
Temperature
Coeffi cient
Feedback Pin Voltage
at Turn-Off Threshold
Power Coeffi cient
Control Functions
Parameter
(θ
(θ
(θ
(θ
JA
JC
JA
JC
) .......................... .........70 °C/W
)
)
(1)
.....................................100 °C/W
(1)
D Package:
............................................... ......... 11 °C/W
.......................... ...........................30 °C/W
LNK624 .................................... 400 mA
LNK625 .................................... 528 mA
LNK626 .................................... 720 mA
Symbol
f
DC
V
TC
(1,4)
OSC(AR)
V
f
FB(AR)
OSC
I
FBth
2
MAX
VFB
f
I
I
2
2
See Figure 15,
T
f = I
f = I
J
C
T
SOURCE = 0 V; T
= 25 °C, V
J
BP
2
2
= 25 °C
LIMIT(TYP)
LIMIT(TYP)
= 1 μF
Average Frequency, T
Peak-Peak Jitter Compared to
(Unless Otherwise Specifi ed)
Relative to f
(2)
(2)
; 60 °C/W
(Note 2,3) T
; 80 °C/W
× f
× f
FB
OSC(TYP)
OSC(TYP)
Conditions
= V
T
J
= 25 °C
FBth
OSC
LNK625P, LNK625D
(3)
(3)
(2)
J
J
LNK623-624P
LNK623-624D
(See Note 3)
= -40 to 125 °C
= 25 °C
LNK626P
Operating Junction Temperature.........................-40 °C to 150 °C
Lead Temperature
Notes:
1. All voltages referenced to SOURCE, T
2. Duration not to exceed 2 msec.
3. 1/16 in. from case for 5 seconds.
4. Maximum ratings specifi ed may be applied, one at a time
Notes:
1. Measured on pin 8 (SOURCE) close to plastic interface.
2. Soldered to 0.36 sq. in. (232 mm
3. Soldered to 1 sq. in. (645 mm
LNK623/6P
LNK623/5D
T
T
J
without causing permanent damage to the product.
periods of time may affect product reliability.
Exposure to Absolute Maximum ratings for extended
LNK623/6
= 25 °C
J
J
= 25 °C
= 25 °C
(3)
.................................................................260 °C
0.9 × I
0.9 × I
1.815
1.855
1.835
1.775
Min
93
54
2
2
f
f
2
), 2 oz. (610 g/m
1.840
1.880
1.860
1.800
-0.01
2
1.45
Typ
100
), 2 oz. (610 g/m
±7
80
I
I
LNK623-626
2
2
f
f
A
= 25 °C.
1.17 × I
1.21 × I
1.865
1.905
1.885
1.825
Max
106
2
) copper clad.
2
) copper clad.
2
2
f
f
Units
%/°C
A
Rev. C 12/08
kHz
%
%
%
2
V
V
Hz
11