LNK454/456-458/460
Absolute Maximum Ratings(1,4)
DRAIN Pin Peak Current(5): LNK454 ............... 400 mA (750 mA)
LNK456 ..............850 mA (1450 mA)
Notes:
1. All voltages referenced to SOURCE, TA = 25 °C.
2. Normally limited by internal circuitry.
3. 1/16 in. from case for 5 seconds.
LNK457 ........... 1350 mA (2000 mA)
LNK458 ............1750 mA (2650 mA)
4. The Absolute Maximum Ratings specified may be applied,
one at a time without causing permanent damage to the
product. Exposure to Absolute Maximum Ratings for
extended periods of time may affect product reliability.
5. The higher peak Drain current (in parentheses) is allowed
while the Drain voltage is simultaneously less than 400 V.
LNK460 ............2700 mA (5100 mA)
DRAIN Pin Voltage ………………………............. -0.3 V to 725 V
FEEDBACK Pin Voltage ……………………… ............ -0.3 to 9 V
BYPASS Pin Voltage ………………………................. -0.3 to 9 V
Lead Temperature(3) ................................................................260 °C
Storage Temperature …………………................... -65 to 150 °C
Operating Junction Temperature(2).........................-40 to 150 °C
Thermal Resistance
Thermal Resistance: D (SO-8C) Package:
Notes:
(qJA) ..................................100 °C/W(1), 80 °C/W(2) 1. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (610g/m2) copper clad,
(qJC) ........................................................ 30 °C/W(3)
K (eSOP) Package:
with no external heat sink attached.
2. Soldered to 1 sq. in. (645 mm2), 2 oz. (610g/m2) copper clad,
with no external heat sink attached.
(qJA) .................................... 69 °C/W(1), 49 °C/W(2)
(qJC) ...........................................................2 °C/W(4) 3. Measured on the SOURCE pin close to plastic interface.
V (eDIP) Package:
4. Measured at the surface of exposed pad.
(qJA) .................................... 76 °C/W(1), 64 °C/W(2)
(qJC) ...........................................................2 °C/W(4)
Conditions
SOURCE = 0 V; TJ = -40 to +125 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
Control Functions
Average
TJ = 25 °C
110
122
6
134
kHz
%
Maximum Output
Frequency
fMAX
Peak-Peak Jitter
Average
TJ = 25 °C
25.8
28.7
6
31.6
kHz
%
Minimum Output
Frequency
fMIN
Peak-Peak Jitter
Maximum Switch
ON-Time
tON(MAX)
TJ = 25 °C
TJ = 25 °C
5.74
µs
Minimum Switch
ON-Time
tON(MIN)
DCMAX
VFB
1.2
70
µs
%
Maximum Duty Cycle
FEEDBACK Pin Voltage
TJ = 25 °C
Non-dimming (full power) operation
280
290
300
mV
FEEDBACK Pin Voltage
Triggering Cycle
VFB(SK)
Non-dimming (full power) operation
520
mV
Skipping Mode
FEEDBACK Pin Voltage
for IC Auto-Restart
VFB(AR)
IFB
2
V
Feedback Pull-up
Current
-1.3
-1.0
-0.7
µA
11
www.powerint.com
Rev. A 11/01/10
POWERINT [ Power Integrations ]
