TNY253/254/255
ABSOLUTE MAXIMUM RATINGS
(1)
DRAIN Voltage .......................................... -0.3 V to 700 V
Peak DRAIN Current (TNY253/4) ............400 (500) mA
(6)
Peak DRAIN Current (TNY255) ...............530 (660) mA
(6)
ENABLE Voltage ........................................... -0.3 V to 9 V
ENABLE Current ................................................... 100 mA
BYPASS Voltage ............................................ -0.3 V to 9 V
1. All voltages referenced to SOURCE, T
A
= 25 °C.
2. Normally limited by internal circuitry.
3. 1/16" from case for 5 seconds.
Storage Temperature ...................................... -65 to 150 °C
Operating Junction Temperature
(2)
............... -40 to 150 °C
.
(3)
Lead Temperature .................................................260 °C
Thermal Impedance (θ
JA
) .................70 °C/W
(4)
, 55 °C/W
(5)
.
Thermal Impedance (θ
JC
) ....................................... 11 °C/W
4. Soldered to 0.36 sq. inch (232 mm
2
), 2 oz. (610 gm/m
2
) copper clad.
5. Soldered to 1 sq. inch (645 mm
2
), 2 oz. (610 gm/m
2
) copper clad.
6. The higher peak drain current is allowed while the drain
voltage is simultaneously less than 400 V.
Parameter
Symbol
Conditions
SOURCE = 0 V
;
T
J
= -40 to 125
°C
See Figure 14
(Unless Otherwise Specified)
Min
Typ
Max
Units
CONTROL FUNCTIONS
Output
Frequency
Maximum
Duty Cycle
ENABLE Pin Turnoff
Threshold Current
ENABLE Pin
Hysteresis Current
ENABLE Pin
Voltage
ENABLE Short-
Circuit Current
DRAIN
Supply Current
f
OSC
DC
MAX
I
DIS
I
HYS
V
EN
I
ENSC
I
S1
I
S2
I
CH1
T
J
= 25
°C
TNY253
TNY254
TNY255
TNY253
TNY254
TNY255
40
115
66
64
-68
-68
-15
1.10
-58
-58
44
130
68
67
-50
-52
-10
1.45
-42
-45
160
170
140
215
-5.0
-6.0
-4.0
-4.8
5.6
0.60
-3.5
-4.5
-2.5
-3.3
5.8
0.72
48
140
71
69
-30
-45
-5
1.80
-25
-38
200
215
180
265
-2.0
-3.0
-1.0
-1.8
6.1
0.85
kHz
%
µA
µA
V
µA
µA
µA
mA
mA
V
V
S1 Open
T
J
= -40
°C
to 125
°C
T
J
= 125
°C
See Note A
I
EN
= -25
µA
V
EN
= 0 V, T
J
= -40
°C
to 125
°C
V
EN
= 0 V, T
J
= 125
°C
TNY253
TNY254
TNY255
TNY253
TNY254
TNY255
TNY253
V
BP
= 0 V, T
J
= 25
°C
TNY254
See Note D, E
TNY255
TNY253
V
BP
= 4 V, T
J
= 25
°C
See TNY254
Note D, E
TNY255
V
EN
= 0 V
(MOSFET Not Switching)
See Note B
ENABLE Open
(MOSFET Switching)
See Note B, C
See Note D
BYPASS Pin
Charge Current
BYPASS Pin
Voltage
BYPASS
Hysteresis
10
Rev E
02/12
I
CH2
V
BP
V
BPH
POWERINT [ POWER INTEGRATIONS, INC. ]
