LNK458DG View Datasheet(PDF) - Power Integrations, Inc
Part Name
Description
MFG CO.
LNK458DG
Power Integrations, Inc
'LNK458DG' PDF : 20 Pages View PDF
LNK454/456-458/460
Absolute Maximum Ratings(1,4)
DRAIN Pin Peak Current(5): LNK454................ 400 mA (750 mA)
LNK456...............850 mA (1450 mA)
LNK457............ 1350 mA (2000 mA)
LNK458.............1750 mA (2650 mA)
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
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.
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.
Thermal Resistance
Thermal Resistance: D (SO-8C) Package:
(qJA) .................................. 100 °C/W(1), 80 °C/W(2)
(qJC) ........................................................ 30 °C/W(3)
K (eSOP) Package:
(qJA) .................................... 69 °C/W(1), 49 °C/W(2)
(qJC) ...........................................................2 °C/W(4)
V (eDIP) Package:
(qJA) .................................... 76 °C/W(1), 64 °C/W(2)
(qJC) ...........................................................2 °C/W(4)
Notes:
1. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (610g/m2) copper clad,
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.
3. Measured on the SOURCE pin close to plastic interface.
4. Measured at the surface of exposed pad.
Parameter
Symbol
Control Functions
Maximum Output
Frequency
Minimum Output
Frequency
Maximum Switch
ON-Time
Minimum Switch
ON-Time
Maximum Duty Cycle
FEEDBACK Pin Voltage
FEEDBACK Pin Voltage
Triggering Cycle
Skipping Mode
FEEDBACK Pin Voltage
for IC Auto-Restart
Feedback Pull-up
Current
fMAX
fMIN
tON(MAX)
tON(MIN)
DCMAX
VFB
VFB(SK)
VFB(AR)
IFB
Conditions
SOURCE = 0 V; TJ = -40 to +125 °C
(Unless Otherwise Specified)
TJ = 25 °C
TJ = 25 °C
Average
Peak-Peak Jitter
Average
Peak-Peak Jitter
TJ = 25 °C
TJ = 25 °C
TJ = 25 °C
Non-dimming (full power) operation
Non-dimming (full power) operation
Min
110
25.8
280
-1.3
Typ
122
6
28.7
6
5.74
1.2
70
290
520
2
-1.0
Max Units
134
kHz
%
31.6
kHz
%
ms
ms
%
300
mV
mV
V
-0.7
mA
www.powerint.com
11
Rev. A 11/01/10
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