NCP1271 datasheet(5/19 Pages) ONSEMI

Part #	NCP1271

Description	Soft?뭆kip Mode Standby PWM Controller with Adjustable Skip Level and External Latch

Download	19 Pages

Scroll/Zoom	100%

Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

Logo

5 / 19 page

NCP1271

http://onsemi.com

5

ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C, for min/max values, TJ = −40°C to +125°C, VCC = 14 V,

HV = open, skip = open, FB = 2 V, CS = Ground, DRV = 1 nF, unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

OSCILLATOR

Oscillation Frequency (65 kHz Version, TJ = 25_C)

Oscillation Frequency (65 kHz Version, TJ = −40 to + 85_C)

Oscillation Frequency (65 kHz Version, TJ = −40 to + 125_C)

Oscillation Frequency (100 kHz Version, TJ = 25_C)

Oscillation Frequency (100 kHz Version, TJ = −40 to +85_C)

Oscillation Frequency (100 kHz Version, TJ = −40 to +125_C)

5

fosc

61.75

58

55

95

89

85

65

100

68.25

69

105

107

kHz

Oscillator Modulation Swing, in Percentage of fosc

5

−

"7.5

−

%

Oscillator Modulation Swing Period

5

−

6.0

−

ms

Maximum Duty Cycle (VCS = 0 V, VFB = 2.0 V)

5

Dmax

75

80

85

%

GATE DRIVE

Gate Drive Resistance

Output High (VCC = 14 V, Drv = 300 W to Gnd)

Output Low (VCC = 14 V, Drv = 1.0 V)

5

ROH

ROL

6.0

2.0

11

6.0

20

12

W

Rise Time from 10% to 90% (Drv = 1.0 nF to Gnd)

5

tr

−

30

−

ns

Fall Time from 90% to 10% (Drv = 1.0 nF to Gnd)

5

tf

−

20

−

ns

CURRENT SENSE

Maximum Current Threshold

3

ILimit

0.95

1.0

1.05

V

Soft−Start Duration

−

tSS

−

4.0

−

ms

Soft−Skip Duration

−

tSK

−

300

−

ms

Leading Edge Blanking Duration

3

tLEB

100

180

330

ns

Propagation Delay (Drv =1.0 nF to Gnd)

−

50

150

ns

Ramp Current Source Peak

3

Iramp(H)

−

100

−

mA

Ramp Current Source Valley

3

Iramp(L)

−

0

−

mA

SKIP

Default Standby Skip Threshold (Pin 1 = Open)

2

Vskip

−

1.2

−

V

Skip Current (Pin 1 = 0 V, TJ = 25_C)

1

Iskip

26

43

56

mA

Skip Level Reset (Note 5)

1

Vskip−reset

5.0

5.7

6.5

V

Transient Load Detection Level to Disable Soft−Skip Mode

2

VTLD

2.6

2.85

3.15

V

EXTERNAL LATCH

Latch Protection Threshold

1

Vlatch

7.1

8.0

8.7

V

Latch Threshold Margin (Vlatch−m = VCC(off) − Vlatch)

1

Vlatch−m

0.6

1.2

−

V

Noise Filtering Duration

1

−

13

−

ms

Propagation Delay (Drv = 1.0 nF to Gnd)

1

Tlatch

−

100

−

ns

SHORT−CIRCUIT FAULT PROTECTION

Time for Validating Short−Circuit Fault Condition

2

tprotect

−

130

−

ms

5. Please refer to Figure 39 for detailed description.

6. Guaranteed by design.

Similar Part No. - NCP1271

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP1271	739Kb / 6P	Power Factor Controllers Rev. 7, Sep-2006
	NCP1271	239Kb / 21P	Soft-Skip Mode Standby PWM Controller with Adjustable Skip Level and External Latch September, 2009 ??Rev. 6
	NCP12711	1Mb / 24P	Current Mode PWM Controller April, 2022 - Rev. P0
	NCP12711ADNR2G	1Mb / 24P	Current Mode PWM Controller April, 2022 - Rev. P0
	NCP1271P100G	239Kb / 21P	Soft-Skip Mode Standby PWM Controller with Adjustable Skip Level and External Latch September, 2009 ??Rev. 6

More results

Similar Description - NCP1271

Manufacturer	Part #	Datasheet	Description
ON Semiconductor	NCP1271P100G	239Kb / 21P	Soft-Skip Mode Standby PWM Controller with Adjustable Skip Level and External Latch September, 2009 ??Rev. 6
	NCP1271	239Kb / 21P	Soft-Skip Mode Standby PWM Controller with Adjustable Skip Level and External Latch September, 2009 ??Rev. 6
	NCP1219	207Kb / 20P	PWM Controller with Adjustable Skip Level and External Latch Input May, 2009 ??Rev. 1
	NCP1218	209Kb / 20P	PWM Controller with Adjustable Skip Level and External Latch Input October, 2009 ??Rev. 1
	NCP1219BD100R2G	185Kb / 20P	PWM Controller with Adjustable Skip Level and External Latch Input October, 2009 ??Rev. 3
	NCP1219	178Kb / 20P	PWM Controller with Adjustable Skip Level and External Latch Input February, 2022 - Rev. 4
	NCP1230A	2Mb / 21P	Low--Standby Power Soft Skip Mode Controller December, 2010 -- Rev. 7
Maxim Integrated Produc...	MAX16952EVKIT	829Kb / 8P	Selectable Forced Fixed-Frequency PWM Mode, SKIP Mode, or External Synchronization Rev 1; 1/12
Grenergy Opto, lnc.	GR8837	721Kb / 14P	Green-Mode PWM Controller with Latch Protection
Excelliance MOS Corp.	EM8633	258Kb / 12P	Green mode PWM Flyback Controller with External Over

More results

NCP1271 Datasheet(PDF) 5 Page - ON Semiconductor

NCP1271 Datasheet(HTML) 5 Page - ON Semiconductor

Similar Part No. - NCP1271

Similar Description - NCP1271

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Datasheet Download

Link URL