NCP1231 Ver la hoja de datos (PDF) - ON Semiconductor

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NCP1231

Low−Standby Power High Performance PWM Controller

ON Semiconductor 

NCP1231

ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C, Max TJ = 150°C,

VCC = 13 V, unless otherwise noted.)

Rating

Symbol Pin Min Typ Max Unit

Internal Ramp Compensation (VCC = 13 V)

Internal Resistor (Note 3)

Rup

3 9.0

18

36 kW

Internal Sawtooth Amplitude (Note 4)

−

3

−

2.3

− Vpp

Protection (VCC = 13 V)

Timeout before Validating Short−Circuit or PFC VCC with an 82 nF cap. to Pin 7

(Note 4)

Tdelay

−

−

110

− ms

Latch−Off Level

Vlatch

8 3.7 4.2 4.5 V

Propagation Delay from Latch Detected to Gate Turned Off (Pin 5 Loaded by 1.0 nF) TDEL LATCH −

−

100

−

ns

Brown−Out Level High

VBOhigh

8 0.40 0.50 0.55 V

Brown−Out Level Low

VBOlow

8 0.180 0.230 0.285 V

Temperature Shutdown, Maximum Value (Note 4)

TSD

−

−

160

−

°C

Hysteresis while in Temperature Shutdown (Note 4)

TSD hyste

−

−

30

−

°C

3. Guaranteed by Design.

4. Verified by Design.

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