TOP257PN 查看數據表（PDF） - Power Integrations, Inc

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TOP257PN

AC/DC Converters Off-Line Switcher IC 26W/64W PK

Power Integrations, Inc 

TOP252-262

Parameter

Symbol

Circuit Protection (cont.)

Self Protection

Current Limit

ILIMIT

(See Note C)

Initial Current Limit

Power Coefficient

Leading Edge

Blanking Time

Current Limit Delay

Thermal Shutdown

Temperature

Thermal Shutdown

Hysteresis

Power-Up Reset

Threshold Voltage

Output

IINIT

PCOEFF

tLEB

tIL(D)

VC(RESET)

ON-State

Resistance

RDS(ON)

36

Rev. H 06/13

Conditions

SOURCE = 0 V; TJ = -40 to 125 °C

Min

(Unless Otherwise Specified)

TOP258YN/EN

TJ = 25 °C

TOP259LN

TJ = 25 °C

TOP259YN/EN

TJ = 25 °C

TOP260LN

TJ = 25 °C

TOP260YN/EN

TJ = 25 °C

TOP261LN

TJ = 25 °C

TOP261YN/EN

TJ = 25 °C

TOP262LN

TJ = 25 °C

TOP262EN

TJ = 25 °C

di/dt = 890 mA/ms

di/dt = 720 mA/ms

di/dt = 1065 mA/ms

di/dt = 870 mA/ms

di/dt = 1240 mA/ms

di/dt = 1065 mA/ms

di/dt = 1530 mA/ms

di/dt = 1065 mA/ms

di/dt = 1530 mA/ms

See Note B

TJ = 25 °C,

See Note D

IX or IM ≤ - 165 mA

IX or IM ≤ - 117 mA

TJ = 25 °C, See Figure 53

3.999

3.236

4.790

3.906

5.580

4.808

6.882

4.808

6.882

0.70 ×

ILIMIT(MIN)

0.9 × I2f

0.9 × I2f

135

Figure 54 (S1 Open Condition)

TOP252

ID = 50 mA

TOP253

ID = 100 mA

TOP254

ID = 150 mA

TOP255

ID = 200 mA

TOP256

ID = 300 mA

TOP257

ID = 400 mA

TOP258

ID = 500 mA

TJ = 25 °C

TJ = 100 °C

TJ = 25 °C

TJ = 100 °C

TJ = 25 °C

TJ = 100 °C

TJ = 25 °C

TJ = 100 °C

TJ = 25 °C

TJ = 100 °C

TJ = 25 °C

TJ = 100 °C

TJ = 25 °C

TJ = 100 °C

1.75

Typ

4.30

3.48

5.15

4.20

6.00

5.17

7.40

5.17

7.40

I2f

I2f

220

100

142

75

3.0

19.1

28.8

8.8

13.1

5.4

8.35

4.1

6.3

2.8

4.1

2.0

3.1

1.7

2.5

Max Units

4.601

3.724

5.511

4.494

6.420

5.532

7.918

5.532

7.918

1.2 × I2f

1.2 × I2f

150

A

A

A2kHz

ns

ns

°C

°C

4.25

V

22.00

33.40

10.10

15.20

6.25

9.70

4.70

W

7.30

3.20

4.75

2.30

3.60

1.95

2.90

www.powerint.com

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