TOP242 datasheet(38/48 Pages) POWERINT

38 / 48 page

TOP242-249

7/01

August 8, 2000

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 (cont)

IL(D)

C(RESET)

100

130

140

150

1.75

3.0

4.25

°C

Current Limit Delay

Thermal Shutdown

Temperature

Thermal Shutdown

Hysteresis

Power-up Reset

Threshold Voltage

C = 4 mA

Figure 53, S1 Open

DS(ON)

ON-State

Resistance

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

J = 25 °C

J = 100 °C

TOP242

D = 50 mA

TOP243

D = 100 mA

TOP244

D = 150 mA

TOP245

D = 200 mA

TOP246

D = 300 mA

TOP247

D = 400 mA

TOP248

D = 500 mA

TOP249

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

Measured in a Typical

Flyback Converter Application

Off-State

Current

Breakdown

Voltage

Rise

Time

Fall

Time

DSS

400

µA

700

100

L, VM = Floating; IC = 4mA

DS = 560 V; TJ = 125 °C

L, VM = Floating; IC = 4mA

D = 100 µA; TJ = 25 °C

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