TNY253/254/255
ABSOLUTE MAXIMUM RATINGS(1)
DRAIN Voltage ....................................... - 0.3 V to 700 V Storage Temperature ..................................... -65 to 150 °C
Peak DRAIN Current (TNY253/4) ........................400 mA Operating Junction Temperature(2) ................ -40 to 150 °C
Peak DRAIN Current (TNY255) ...........................530 mA Lead Temperature(3) ................................................ 260 °C
ENABLE Voltage ........................................ - 0.3 V to 9 V Thermal Impedance (θJA) ................ 45 °C/W(4), 35 °C/W(5)
ENABLE Current...................................................100 mA Thermal Impedance (θJC) ..................................... 11 °C/W
BYPASS Voltage .......................................... -0.3 V to 9 V
1. All voltages referenced to SOURCE, TA = 25 °C.
2. Normally limited by internal circuitry.
3. 1/16" from case for 5 seconds.
4. Soldered to 0.36 sq. inch (232 mm2), 2 oz. (610 gm/m2) copper clad.
5. Soldered to 1 sq. inch (645 mm2), 2 oz. (610 gm/m2) copper clad.
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
Parameter
Symbol
Min
Typ Max
Units
See Figure 14
(Unless Otherwise Specified)
CONTROL FUNCTIONS
TNY253
40
115
66
44
130
68
48
140
71
Output
fOSC
DCMAX
IDIS
TNY254
TNY255
TJ = 25 °C
kHz
%
Frequency
TNY253
TNY254
TNY255
Maximum
Duty Cycle
S1 Open
64
69
67
TJ = -40 °C to 125 °C
TJ = 125 °C
-68
-68
-50
-52
-30
-45
ENABLE Pin Turnoff
Threshold Current
µA
µA
V
ENABLE Pin
IHYS
VEN
IENSC
IS1
-15
-10
-5
See Note A
Hysteresis Current
ENABLE Pin
Voltage
IEN = -25 µA
1.10
1.45
1.80
VEN = 0 V, TJ = -40 °C to 125 °C
VEN = 0 V, TJ = 125 °C
-58
-58
-42
-45
-25
-38
ENABLE Short-
Circuit Current
µA
µA
µA
mA
mA
VEN = 0 V
TNY253
TNY254
TNY255
TNY253
TNY254
TNY255
160
170
140
200
215
180
(MOSFET Not Switching)
See Note B
DRAIN
Supply Current
ENABLE Open
(MOSFET Switching)
See Note B, C
IS2
265
-2.0
-3.0
215
-3.5
-4.5
-2.5
-3.3
TNY253
TNY254
-5.0
-6.0
-4.0
-4.8
VBP = 0 V, TJ = 25 °C
ICH1
See Note D, E
TNY255
BYPASS Pin
Charge Current
TNY253
TNY254
TNY255
-1.0
-1.8
VBP = 4 V, TJ = 25 °C
ICH2
See Note D, E
BYPASS Pin
Voltage
VBP
See Note D
5.6
5.8
6.1
V
V
BYPASS
Hysteresis
VBPH
0.60
0.85
0.72
C
10
7/01
POWERINT [ Power Integrations ]
