LNK623-626
Absolute Maximum Ratings(1,4)
DRAIN Voltage .........................................................-0.3 V to 700 V Notes:
DRAIN Peak Current: LNK623......................... 400 (600) mA(4) ±. All voltages referenced to SOURCE, TA = 21 °C.
LNK624......................... 400 (600) mA(4) 2. Duration not to exceed 2 msec.
LNK621..........................128 (790) mA(4) 3. ±/±6 in. from case for 1 seconds.
LNK626........................720 (±080) mA(4) 4. The higher peak DRAIN current is allowed while the DRAIN
Peak Negative Pulsed DRAIN Current ................... ...... -±00 mA(2)
voltage is simultaneously less than 400 V.
Feedback Voltage ........................................................-0.3 V to 9 V 1. Maximum ratings specified may be applied, one at a time
Feedback Current ............................................................... ±00 mA
BYPASS Pin Voltage ..................................... .............-0.3 V to 9 V
Storage Temperature ........................................... -61 °C to ±10 °C
Operating Junction Temperature.........................-40 °C to ±10 °C
Lead Temperature(3) .................................................................260 °C
without causing permanent damage to the product.
Exposure to Absolute Maximum ratings for extended
periods of time may affect product reliability.
Thermal Resistance
Thermal Resistance: P Package:
Notes:
(θJA) ....................................70 °C/W(2); 60 °C/W(3) ±. Measured on pin 8 (SOURCE) close to plastic interface.
(θJC)(±) ............................................... .........±± °C/W 2. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (6±0 g/m2) copper clad.
D Package:
3. Soldered to ± sq. in. (641 mm2), 2 oz. (6±0 g/m2) copper clad.
(θJA .....................................±00 °C/W(2); 80 °C/W(3)
(θJC)(±) .......................... ...........................30 °C/W
Conditions
SOURCE = 0 V; TJ = -40 to ±21 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
Control Functions
Output Frequency
fOSC
TJ = 21 °C, VFB = VFBth
LNK623/6
93
±00
±7
±06
kHz
5
Peak-Peak Jitter Compared to
Average Frequency, TJ = 21 °C
Frequency Jitter
Ratio of Output
Frequency at Auto-RST
TJ = 21 °C
Relative to fOSC (See Note 3)
fOSC(AR)
DCMAX
80
5
5
Maximum Duty Cycle
(Note 2,3) TJ = 21 °C
LNK623-624P
14
±.8±1
±.811
±.831
±.771
±.840
±.880
±.860
±.800
±.861
±.901
±.881
±.821
TJ = 21 °C
See Figure ±1,
BP = ± μF
LNK623-624D
Feedback Pin Voltage
VFBth
V
LNK621P, LNK621D
LNK626P, LNK626D
C
Feedback Pin Voltage
Temperature
TCVFB
VFB(AR)
-0.0±
5/°C
V
Coefficient
Feedback Pin Voltage
at Turn-Off Threshold
±.41
I2f
LNK623/6P
TJ = 21 °C
I2f = I2LIMIT(TYP) × fOSC(TYP)
I2f = I2LIMIT(TYP) × fOSC(TYP)
0.9 × I2f
0.9 × I2f
±.±7 × I2f
±.2± × I2f
Power Coefficient
I2f
A2Hz
LNK623/6D
TJ = 21 °C
I2f
11
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Rev. E 09/09
POWERINT [ Power Integrations ]
