tny274 Power Integrations, Inc., tny274 Datasheet - Page 16

• Manufacturer Part Number: tny274
• Description: Energy Ef?cient, Of?ine Switcher With Enhanced Flexibility And Extended Power Range
• Manufacturer: Power Integrations, Inc.

16
CIRCUIT PROTECTION (cont.)
Power Coefficient
Initial Current Limit
Leading Edge
Blanking Time
Current Limit
Delay
Thermal Shut-
down Temperature
Thermal Shut-
down Hysteresis
BP/M Pin Shut-
down Threshold
Current
BP/M Pin Power
up Reset Thresh-
old Voltage
ON-State
Resistance
OUTPUT
TNY274-280
Parameter
G
6/06
Symbol
V
BP/M(RESET)
R
T
T
I
t
DS(ON)
t
I
I
LEB
INIT
ILD
SDH
SD
2
SD
f
Limit, I
Limit, I
Increased Current
Standard Current
Reduced Current
SOURCE = 0 V; T
(Unless Otherwise Specified)
I
I
I
Limit, I
I
D
D
D
× f
LIMITred(TYP)
× f
× f
TNY274
TNY275
TNY276
2
= 25 mA
= 28 mA
= 35 mA
f = I
2
T
f = I
OSC(TYP)
OSC(TYP)
OSC(TYP)
J
= 25 °C, See Note G
LIMITinc(TYP)
2
See Note G, H
LIMIT(TYP)
Conditions
See Figure 16
See Figure 19
f =
See Note G
T
T
2
J
J
= 25 °C
= 25 °C
2
2
J
= -40 to 125 °C
TNY274-280G
TNY274-280G
TNY274-280G
TNY274-280P
TNY274-280P
TNY274-280P
T
T
T
T
T
T
J
J
J
J
J
J
= 100 °C
= 100 °C
= 100 °C
= 25 °C
= 25 °C
= 25 °C
I
0.75 ×
LIMIT(MIN)
0.9 ×
0.9 ×
0.9 ×
0.9 ×
0.9 ×
Min
0.9 ×
170
135
1.6
I
I
I
I
I
I
4
2
2
2
2
2
2
f
f
f
f
f
f
Typ
215
150
142
6.5
2.6
75
28
42
19
29
14
21
I
I
I
I
I
I
2
2
2
2
2
2
f
f
f
f
f
f
1.12 ×
1.16 ×
1.16 ×
1.20 ×
1.16 ×
1.20 ×
Max
150
3.6
32
48
22
33
16
24
I
I
I
I
I
I
9
2
2
2
2
2
2
f
f
f
f
f
f
Units
A
mA
mA
ns
ns
°C
°C
2
Ω
V
Hz