Datasheet

TOP242-250
38
I
4/03
General Information & Table of Contents
Product Selector Guide 1
Data Sheets 2
Application Notes 3
Design Ideas 4
Design Tools 5
Quality and Reliability 6
Package Information 7
DPA-Switch DC-DC Seminar 8
LinkSwitch & TinySwitch-II AC-DC Seminar 9
TOPSwitch-GX AC-DC Seminar 10
Sales Representatives and Distributors 11
Conditions
(Unless Otherwise Specified)
See Figure 53
SOURCE = 0 V
; T
J
= -40 to 125 °C
Min Typ Max
Parameter
Symbol
Units
OUTPUT
CIRCUIT PROTECTION
t
IL(D)
V
C(RESET)
100
130 140 150
75
1.75 3.0 4.25
ns
°C
°C
V
Current Limit Delay
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
Power-up Reset
Threshold Voltage
I
C
= 4 mA
Figure 53, S1 Open
R
DS(ON)
ON-State
Resistance
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
T
J
= 25 °C
T
J
= 100 °C
TOP242
I
D
= 50 mA
TOP243
I
D
= 100 mA
TOP244
I
D
= 150 mA
TOP245
I
D
= 200 mA
TOP246
I
D
= 300 mA
TOP247
I
D
= 400 mA
TOP248
I
D
= 500 mA
TOP249
I
D
= 600 mA
15.6 18.0
25.7 30.0
7.80 9.00
12.9 15.0
5.20 6.00
8.60 10.0
3.90 4.50
6.45 7.50
2.60 3.00
4.30 5.00
1.95 2.25
3.22 3.75
1.56 1.80
2.58 3.00
1.30 1.50
2.15 2.50
Ω
Leading Edge
Blanking Time
t
LEB
220 ns
See Figure 52
T
J
= 25 °C, I
C
= 4 mA
TOP249 Y/R/F
T
J
= 25 °C
TOP250 Y/R/F
T
J
= 25 °C
Internal
di/dt=1080 mA/µs
Internal
di/dt=1260 mA/µs
See Note B
Self Protection
Current Limit
(See Note C)
Initial Current Limit
I
LIMIT
I
INIT
5.022 5.40 5.778
5.859 6.30 6.741
0.75 x
I
LIMIT(MIN)
0.6 x
I
LIMIT(MIN)
≤ 85 VAC
(Rectified Line Input)
265 VAC
(Rectified Line Input)
A
A