Datasheet

Rev. J 06/13
9
LNK302/304-306
www.powerint.com
Absolute Maximum Ratings
(1,5)
DRAIN Pin Voltage .............................................. -0.3 V to 700 V
DRAIN Pin Peak Current: LNK302 ...................... 200 (375) mA
(2)
LNK304 ...................... 400 (750) mA
(2)
LNK305 .................... 800 (1500) mA
(2)
LNK306 .................. 1400 (2600) mA
(2)
FEEDBACK Pin Voltage .......................................... -0.3 V to 9 V
FEEDBACK Pin Current ................................................. 100 mA
BYPASS Pin Voltage ............................................... -0.3 V to 9 V
Storage Temperature ..................................... -65 °C to 150 °C
Operating Junction Temperature
(3)
.................. -40 °C to 150 °C
Lead Temperature
(4)
......................................................... 260 °C
Notes:
1. All voltages referenced to SOURCE, T
A
= 25 °C.
2. The higher peak DRAIN current is allowed if the DRAIN
to SOURCE voltage does not exceed 400 V.
3. Normally limited by internal circuitry.
4. 1/16 in. from case for 5 seconds.
5. Maximum ratings specified may be applied, one at a time,
without causing permanent damage to the product.
Exposure to Absolute Maximum Rating conditions for
extended periods of time may affect product reliability.
Thermal Resistance
Thermal Resistance: P or G Package:
(q
JA
) ................................ 70 °C/W
(3)
; 60 °C/W
(4)
(q
JC
)
(1)
.................................................11 °C/W
D Package:
(q
JA
) ..................... ......... 100 °C/W
(3)
; 80 °C/W
(4)
(q
JC
)
(2)
.................................................30 °C/W
Notes:
1. Measured on pin 2 (SOURCE) close to plastic interface.
2. Measured on pin 8 (SOURCE) close to plastic interface.
3. Soldered to 0.36 sq. in. (232 mm
2
), 2 oz. (610 g/m
2
) copper clad.
4. Soldered to 1 sq. in. (645 mm
2
), 2 oz. (610 g/m
2
) copper clad.
Parameter Symbol
Conditions
SOURCE = 0 V; T
J
= -40 to 125 °C
See Figure 7
(Unless Otherwise Specified)
Min Typ Max Units
Control Functions
Output
Frequency
f
OSC
T
J
= 25 °C
Average 62 66 70
kHz
Peak-Peak Jitter 4
Maximum Duty Cycle DC
MAX
S2 Open 66 69 72 %
FEEDBACK Pin Turnoff
Threshold Current
I
FB
T
J
= 25 °C 30 49 68 mA
FEEDBACK Pin Voltage
at Turnoff Threshold
V
FB
1.54 1.65 1.76 V
DRAIN Pin
Supply Current
I
S1
V
FB
≥2 V
(MOSFET Not Switching)
See Note A
160 220 mA
I
S2
FEEDBACK Open
(MOSFET
Switching)
See Notes A, B
LNK302/304 200 260
mALNK305 220 280
LNK306 250 310
BYPASS Pin
Charge Current
I
CH1
V
BP
= 0 V
T
J
= 25 °C
LNK302/304 -5.5 -3.3 -1.8
mA
LNK305/306 -7.5 -4.6 -2.5
I
CH2
V
BP
= 4 V
T
J
= 25 °C
LNK302/304 -3.8 -2.3 -1.0
LNK305/306 -4.5 -3.3 -1.5