NCP1012ST65T3G datasheet(6/23 Pages) ONSEMI

Part #	NCP1012ST65T3G

Description	Self-Supplied Monolithic Switcher for Low Standby-Power Offline SMPS

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Manufacturer	ONSEMI [ON Semiconductor]

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

Max TJ = 150°C, VCC= 8.0 V unless otherwise noted.)

Rating

Symbol

Min

Typ

Max

Unit

INTERNAL OSCILLATOR

Oscillation Frequency, 65 kHz Version, TJ = 25°C (Note 4)

−

fOSC

59

65

71

kHz

Oscillation Frequency, 100 kHz Version, TJ = 25°C (Note 4)

−

fOSC

90

100

110

kHz

Oscillation Frequency, 130 kHz Version, TJ = 25°C (Note 4)

−

fOSC

117

130

143

kHz

Frequency Dithering Compared to Switching Frequency

(with active DSS)

−

fdither

−

"3.3

−

%

Maximum Duty−cycle

−

Dmax

62

67

72

%

FEEDBACK SECTION

Internal Pull−up Resistor

4

Rup

−

18

−

k

W

Internal Soft−Start (Guaranteed by Design)

−

Tss

−

1.0

−

ms

SKIP−CYCLE GENERATION

Default Skip Mode Level on FB Pin

4

Vskip

−

0.5

−

V

TEMPERATURE MANAGEMENT

Temperature Shutdown

−

TSD

140

150

160

°C

Hysteresis in Shutdown

−

50

−

°C

4. See characterization curves for temperature evolution.

TYPICAL CHARACTERISTICS

Figure 3. IC1 @ VCC = 8.0 V, FB = 1.5 V

vs. Temperature

−12

−9

−8

−7

−6

−5

−4

−3

−2

−20

0

20

40

60

100

120

TEMPERATURE (

°C)

Figure 4. ICC1 @ VCC = 8.0 V, FB = 1.5 V

vs. Temperature

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

−20

0

20

40

60

100

120

TEMPERATURE (

°C)

Figure 5. ICC2 @ VCC = 6.0 V, FB = Open

vs. Temperature

0.20

0.22

0.24

0.26

0.28

0.30

0.32

0.34

0.36

0.38

0.40

−40

0

2040

6080

120

TEMPERATURE (

°C)

Figure 6. VCC OFF, FB = 1.5 V vs. Temperature

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

9.0

−40

0

20

40

60

100

120

TEMPERATURE (

°C)

−40

80

−10

−11

−40

80

−20

100

−20

80

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