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TYN256P Datasheet

  • TYN256P

  • Energy Efficient, Low Power Off-line Switcher

  • 20頁

  • POWERINT

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TNY256
ABSOLUTE MAXIMUM RATINGS
(1)
DRAIN Voltage ....................................... - 0.3 V to 700 V
Peak DRAIN Current ............................................. 800 mA
EN/UV Voltage ............................................ - 0.3 V to 9 V
EN/UV Current ...................................................... 100 mA
1. All voltages referenced to SOURCE, T
A
= 25
擄C.
2. Normally limited by internal circuitry.
BYPASS Voltage .......................................... -0.3 V to 9 V
Storage Temperature ..................................... -65 to 125
擄C
Operating Junction Temperature
(2)
................ -40 to 150
擄C
Lead Temperature
(3)
................................................ 260
擄C
3. 1/16" from case for 5 seconds.
THERMAL IMPEDANCE
Thermal Impedance: Y Package (胃
JA
)
(1)
............... 70
擄C/W
(胃
JC
)
(2)
................. 2
擄C/W
P/G Package:
(胃
JA
) ........ 45
擄C/W
(3)
; 35
擄C/W
(4)
(胃
JC
)
(2)
............................ 5
擄C/W
1. Free standing with no heatsink.
2. Measured at tab closest to plastic interface or source pin.
3. Soldered to 0.36 sq. inch (232mm
2
), 2oz (610 gm/m
2
) copper
clad.
4. Soldered to 1 sq. inch (645mm
2
), 2oz. (610 gm/m
2
) copper clad
Parameter
Symbol
Conditions
SOURCE = 0 V
;
T
j
= -40 to 125
擄C
See Figure 14
(Unless Otherwise Specified)
Min
Typ
Max
Units
CONTROL FUNCTIONS
Output
Frequency
Maximum
Duty Cycle
EN/UV Pin Turnoff
Threshold Current
EN/UV Pin
Hysteresis Current
EN/UV Pin
Voltage
EN/UV Short-
Circuit Current
f
OSC
DC
MAX
I
DIS
I
HYS
V
EN
I
ENSC
I
S1
T
j
= 25
擄C
See Figure 4
Average
Peak-Peak Jitter
S1 Open
T
j
= -40
擄C
to 125
擄C
T
j
= 125
擄C
See Note 1
I
EN/UV
= -25
碌A(chǔ)
I
EN/UV
= 25
碌A(chǔ)
V
EN/UV
= 0 V, T
j
= -40
擄C
to 125
擄C
V
EN/UV
= 0 V, T
j
= 125
擄C
V
EN/UV
= 0 V
(MOSFET Not Switching)
See Note 2
EN/UV Open
(MOSFET Switching)
See Note 2, 3
V
BP
= 0 V, T
j
= 25
擄C
See Note 4,5
V
BP
= 4 V, T
j
= 25
擄C
See Note 4,5
-7.50
115
3.8
63
-68
-68
-15
1.10
1.85
-58
-58
130
5.0
66
-50
-52
-10
1.45
2.70
-40
-45
170
140
6.2
69
-28
-41
-5
1.80
3.25
-25
-35
215
V
碌A(chǔ)
碌A(chǔ)
碌A(chǔ)
kHz
%
碌A(chǔ)
碌A(chǔ)
DRAIN
Supply Current
I
S2
I
CH1
255
300
-5.50
-3.75
BYPASS Pin
Charge Current
mA
I
CH2
-6.00
-4.10
-2.25
mA
B
8/99
9

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