LNK632DG
Absolute Maximum Ratings(1,5)
DRAIN Voltage .........................................................-0.3 V to 700 V Notes:
DRAIN Peak Current: ...................................... 232 (350) mA(4) 1. All voltages referenced to SOURCE, TA = 25 °C.
Peak Negative Pulsed Drain Current ............................ -100 mA(2) 2. Duration not to exceed 2 ms.
Feedback Voltage ........................................................-0.3 V to 9 V 3. 1/16 in. from case for 5 seconds.
Feedback Current ............................................................... 100 mA 4. The higher peak DRAIN current is allowed while the DRAIN
BYPASS Pin Voltage ..................................... .............-0.3 V to 9 V
voltage is simultaneously less than 400 V.
Storage Temperature ........................................... -65 °C to 150 °C 5. Maximum ratings specified may be applied, one at a time
Operating Junction Temperature....................... -40 °C to 150 °C
Lead Temperature(4) ................................................................260 °C
without causing permanent damage to the product.
Exposure to Absolute Maximum ratings for extended
periods of time may affect product reliability.
Thermal Impedance
Thermal Impedance: D Package:
Notes:
(qJA) ..................................100 °C/W(2); 60 °C/W(3)
(qJC)(1) ............................................... .........30 °C/W
1. Measured on pin 8 (SOURCE) close to plastic interface.
2. Soldered to 0.36 sq. in. (232 mm2), 2 oz. (610 g/m2) copper clad.
3. Soldered to 1 sq. in. (645 mm2), 2 oz. (610 g/m2) copper clad.
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
Control Functions
Output Frequency
fOSC
TJ = 25 °C
TJ = 25 °C
VFB = VFBth
98
105
112
1.7
kHz
Frequency Ratio
(Constant Current)
fRATIO(CC)
1.57
1.635
Between VFB = 1.0 V and VFB = 1.6 V
Peak-Peak Jitter Compared to
Average Frequency, TJ = 25 °C
Frequency Jitter
7
%
%
Ratio of Output
Frequency at
Auto-RST
TJ = 25 °C
Relative to fOSC
fOSC(AR)
12
16.5
21
Maximum Duty Cycle
Feedback Pin Voltage
DCMAX
(Note 2,3)
55
%
V
TJ = 25 °C
See Figure 10, CBP = 10 mF
VFBth
2.015
2.040
2.065
Feedback Pin Voltage
Temperature
Coefficient
TCVFB
-0.01
0.72
%/°C
V
Feedback Pin Voltage
at Turn-Off Threshold
VFB(AR)
0.65
0.79
1.06
1.09
CBP = 1 mF
See Figure 10
Cable Compensation
Factor
υFB
CBP = 10 mF
4
Rev. C 09/09
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