NCP1217D133R2 datasheet(5/18 Pages) ONSEMI

Part #	NCP1217D133R2

Description	Enhanced PWM Current?묺ode Controller for High?뭁ower Universal Off?묹ine Supplies

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP1217, NCP1217A

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ELECTRICAL CHARACTERISTICS (continued) (For typical values TJ = 25°C, for min/max values TJ = 0°C to +125°C,

Max TJ = 150°C, VCC = 11 V unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

FEEDBACK SECTION (VCC = 11 V, Pin 5 Loaded by 1.0 kW)

Internal Pull−Up Resistor

2

Rup

−

19

−

k

W

Pin 2 (FB) to Internal Current Setpoint Division Ratio

−

Iratio

−

3.3

−

SKIP CYCLE GENERATION

Default Skip Mode Level

1

Vskip

0.93

1.1

1.26

V

Pin 1 Internal Output Impedance

1

Zout

−

27

−

k

W

INTERNAL RAMP COMPENSATION

Internal Ramp Level @ 25

°C (Note 3)

3

Vramp

2.6

2.9

3.2

V

Internal Ramp Resistance to CS Pin

3

Rramp

−

19

−

k

W

ADJUSTMENT LATCHOFF LEVEL

Latching Level

1

Vlatch

2.69

3.10

3.42

V

3. A 1.0 M

W resistor is connected to the ground for the measurement.

TYPICAL CHARACTERISTICS

−50

60

50

20

0

TEMPERATURE (

°C)

80

TEMPERATURE (

°C)

10

40

50

150

1.8

Figure 3. High Voltage Pin Leakage Current vs.

Temperature

Figure 4. VCCOFF vs. Temperature

Figure 5. VCCMIN vs. Temperature

Figure 6. ICC 1.0 nF Load vs. Temperature

TEMPERATURE (

°C)

2.2

1.0

2.4

100

−50

13.5

50

12.0

0

11.0

14.0

11.5

12.5

13.0

150

100

−50

50

0

7.0

9.0

TEMPERATURE (

°C)

7.5

8.0

8.5

150

100

−50

50

0150

100

1.4

1.6

2.0

1.2

70

30

65 kHz

100 kHz

133 kHz

2.8

3.0

2.6

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