TNY274-280
Absolute Maximum Ratings(1,4)
DRAIN Voltage ..............................................................................-0.3 V to 700 V Lead Temperature(4) .....................................................................................260 °C
DRAIN Peak Current: TNY274....................................... 400 (750) mA(2)
TNY275.....................................560 (1050) mA(2) Notes:
TNY276.....................................720 (1350) mA(2) 1. All voltages referenced to SOURCE, TA = 25 °C.
TNY277.....................................880 (1650) mA(2) 2. The higher peak DRAIN current is allowed while the DRAIN
TNY278.................................. 1040 (1950) mA(2)
voltage is simultaneously less than 400 V.
TNY279................................. 1200 (2250) mA(2) 3. Normally limited by internal circuitry.
TNY280................................1360 (2550) mA(2) 4. 1/16 in. from case for 5 seconds.
EN/UV Voltage ...................................................................................-0.3 V to 9 V 5. Maximum ratings specified may be applied one at a time,
EN/UV Current .............................................................................................100 mA
BP/M Voltage ......................................................................................-0.3 V to 9 V
Storage Temperature .............................................................-65 °C to 150 °C
Operating Junction Temperature(3) ............................... -40 °C to 150 °C
without causing permanent damage to the product. Exposure
to Absolute Rating conditions for extended periods of time may
affect product reliability.
Thermal Impedance
Thermal Impedance: P or G Package:
Notes:
(θJA) ................................................70 °C/W(2); 60 °C/W(3) 1. Measured on the SOURCE pin close to plastic interface.
(θJC)(1) ...........................................................................11 °C/W 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 ꢀ21 °C
Parameter
Symbol
Min
Typ
Max
Units
See Figure ꢀ6
(Unless Otherwise Specified)
Control Functions
Average
ꢀ24
ꢀ32
ꢀ40
Output Frequency
in Standard Mode
TJ = 21 °C
See Figure 4
fOSC
kHz
5
Peak-to-peak Jitter
Sꢀ Open
8
Maximum Duty Cycle
DCMAX
62
61
EN/UV Pin Upper
Turnoff Threshold
Current
IDIS
-ꢀ10
-ꢀꢀ1
-90
μA
ꢀ.8
0.8
2.2
ꢀ.2
2.6
ꢀ.6
IEN/UV = 21 μA
IEN/UV = -21 μA
EN/UV Pin
Voltage
VEN
V
EN/UV Current > IDIS (MOSFET Not
Switching) See Note A
ISꢀ
290
μA
TNY274
TNY271
271
291
3ꢀ0
361
441
1ꢀ0
630
360
400
430
460
140
640
760
EN/UV Open
TNY276
DRAIN Supply Current
(MOSFET
Switching at fOSC
See Note B
IS2
TNY277
μA
)
TNY278
TNY279
TNY280
12
Rev. I 01/09
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