Datasheet
9
LNK302/304-306
G
3/05
ABSOLUTE MAXIMUM RATINGS
(1,5)
DRAIN Voltage .................................. ................ -0.3 V to 700 V
Peak DRAIN Current (LNK302).................200 mA (375 mA)
(2)
Peak DRAIN Current (LNK304).................400 mA (750 mA)
(2)
Peak DRAIN Current (LNK305).................800 mA (1500 mA)
(2)
Peak DRAIN Current (LNK306).................1400 mA (2600 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 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 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 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 µA
FEEDBACK Pin
Voltage at Turnoff
Threshold
V
FB
1.54 1.65 1.76 V
DRAIN Supply
Current
I
S1
V
FB
≥2 V
(MOSFET Not Switching)
See Note A
160 220 µA
I
S2
FEEDBACK
Open
(MOSFET
Switching)
See Notes A, B
LNK302/304
200 260
µA
LNK305
220 280
LNK306
250 310