Datasheet
LNK362-364
C
12/05
8
ABSOLUTE MAXIMUM RATINGS
(1,5)
DRAIN Voltage .................................. .............-0.3 V to 700 V
Peak DRAIN Current: LNK362................200 mA (375 mA)
(2)
LNK363/364.........400 mA (750 mA)
(2)
FEEDBACK Voltage ........................................... -0.3 V to 9 V
FEEDBACK Current ...................................................100 mA
BYPASS 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 while the
DRAIN voltage is simultaneously less than 400 V.
3. Normally limited by internal circuitry.
4. 1/16 in. from case for 5 seconds.
5. Maximum ratings specifi ed 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 IMPEDANCE
Thermal Impedance: P or G Package:
(θ
JA
) ........................... 70 °C/W
(2)
; 60 °C/W
(3)
(θ
JC
)
(1)
............................................... 11 °C/W
Notes:
1. Measured on pin 2 (SOURCE) close to plastic interface.
2. Soldered to 0.36 sq. in. (232 mm
2
), 2 oz. (610 g/m
2
) copper clad.
3. 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 Specifi ed)
Min Typ Max Units
CONTROL FUNCTIONS
Output Frequency
f
OSC
T
J
= 25 °C
Average 124 132 140
kHz
Peak-Peak Jitter 9
Maximum Duty
Cycle
DC
MAX
S2 Open 60 %
FEEDBACK Pin
Turnoff Threshold
Current
I
FB
T
J
= 25 °C 30 49 68 µA
FEEDBACK Pin
Voltage at Turnoff
Threshold
V
FB
T
J
= 0 °C to
125 °C
LNK362 1.55 1.65 1.75
V
LNK363-364 1.53 1.63 1.73
DRAIN Supply
Current
I
S1
V
FB
2 V
(MOSFET Not Switching)
See Note A
200 250 µA
I
S2
FEEDBACK Open
(MOSFET
Switching)
250 300 µA
BYPASS Pin
Charge Current
I
CH1
V
BP
= 0 V, T
J
= 25 °C
See Note C
-5.5 -3.5 -1.8
mA
I
CH2
V
BP
= 4 V, T
J
= 25 °C
See Note C
-3.8 -2.3 -1.0
BYPASS Pin
Voltage
V
BP
5.55 5.8 6.10 V
BYPASS Pin
Voltage Hysteresis
V
BPH
0.8 1.0 1.2 V