TOP412GN 데이터 시트보기 (PDF) - Power Integrations, Inc

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TOP412GN

Three-terminal DC to DC PWM Switch

Power Integrations, Inc 

TOP412/414

Specification Symbol

Conditions

(Unless Otherwise Specified)

See Figure 11

SOURCE = 0 V

T

J

=

-40

to

125

°C

SHUTDOWN/AUTO-RESTART

Min Typ Max

CONTROL Pin

Charging Current

IC

Charging Current

Temperature Drift

T

J

=

25

°C

VC = 0 V -2.4 -1.9 -1.2

VC = 5 V -2.0 -1.5 -0.8

See Note A

0.4

Auto-restart

Threshold Voltage

V

C(AR)

S1 open

5.7

UV Lockout

Threshold Voltage

S1 open

4.7

Auto-restart

Hysteresis Voltage

S1 open

0.6

1.0

Auto-restart

Duty Cycle

S1 open

5

8

Auto-restart

Frequency

S1 open

1.2

CIRCUIT PROTECTION

TOP412

Self-protection

Current Limit

ILIMIT

2.00

di/dt = 400 mA/µs, TJ = 25 °C

2.90

TOP414

2.95

4.25

di/dt = 600 mA/µs, TJ = 25 °C

Leading Edge

Blanking Time

tLEB

IC = 4 mA

150

Current Limit

Delay

tILD

IC = 4 mA

100

Thermal Shutdown

Temperature

IC = 4 mA

125 145

Latched Shutdown

Trigger Current

ISD

See Figure 10

25

45

75

Power-up Reset

Threshold Voltage

V

C(RESET)

S2 open

2.0

3.3

4.2

Units

mA

%/°C

V

V

V

%

Hz

A

ns

ns

°C

mA

V

9 A

4/99

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