NCP1072P065G 查看數據表（PDF） - ON Semiconductor

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NCP1072P065G

High-Voltage Switcher for Low Power Offline SMPS

ON Semiconductor 

NCP1070, NCP1071,

NCP1072, NCP1075,

NCP1076, NCP1077

High-Voltage Switcher for

Low Power Offline SMPS

The NCP107x products integrate a fixed frequency current mode

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controller with a 700 V MOSFET. Available in a PDIP−7 or SOT−223

package, the NCP107x offer a high level of integration, including

soft−start, frequency−jittering, short−circuit protection, skip−cycle, a

MARKING

DIAGRAMS

maximum peak current set point, ramp compensation, and a Dynamic

Self−Supply (eliminating the need for an auxiliary winding).

Unlike other monolithic solutions, the NCP107x is quiet by nature:

during nominal load operation, the part switches at one of the available

frequencies (65, 100 or 130 kHz). When the output power demand

diminishes, the IC automatically enters frequency foldback mode and

SOT−223

ST SUFFIX

CASE 318E

AYW

z07xyG

G

1

provides excellent efficiency at light loads. When the power demand

reduces further, it enters into a skip mode to reduce the standby

consumption down to a no load condition.

Protection features include: a timer to detect an overload or a

PDIP−7

P SUFFIX

CASE 626A

P107xfyyy

AWL

YYWWG

short−circuit event, Overvoltage Protection with auto−recovery and

AC input line voltage detection.

For improved standby performance, the connection of an auxiliary

winding stops the DSS operation and helps to reduce input power

consumption below 50 mW at high line.

Features

Z

= 1 for Std product; V for Automotive

x

= Current Limit (0, 1, 2, 5, 6 or 7)

y

= Oscillator Frequency

= A (65 kHz), B (100 kHz), C (130 kHz)

yyy = 065, 100, 130

f

= OFF phase in fault mode

• Built−in 700 V MOSFET with RDS(on) of 4.7 W (NCP1076/77) /

11 W (NCP1072/75) / 22 W (NCP1070/71)

• Large Creepage Distance Between High−voltage Pins

A

WL

Y, YY

= P (420 ms), B (210 ms)

= Assembly Location

= Wafer Lot

= Year

• Current−Mode Fixed Frequency Operation – 65 / 100 / 130 kHz

• Peak Current: NCP1070/72 with 250 mA, NCP1071 with 350 mA,

W, WW = Work Week

G or G = Pb−Free Package

NCP1075 with 450 mA, NCP1076 with 650 mA and NCP1077 with

800 mA

• Fixed Ramp Compensation

ORDERING INFORMATION

See detailed ordering and shipping information on page 28 of

this data sheet.

• Skip−Cycle Operation at Low Peak Currents Only: No Acoustic

Noise!

• Dynamic Self−Supply: No Need for an Auxiliary

• No Load Input Consumption < 50 mW

Winding

• Internal 1 ms Soft−Start

• Frequency Foldback to Improve Efficiency at Light

Load

• Auto−Recovery Output Short Circuit Protection with

• Internal Temperature Shutdown

Timer−Based Detection

• Auto−Recovery Overvoltage Protection with Auxiliary

Winding Operation

• Frequency Jittering for Better EMI Signature, Including

Frequency Foldback Mode

• These are Pb−Free Devices

Typical Applications

• Auxiliary / Standby Isolated Power Supplies White

Goods / Smart Meter / E−Meter

© Semiconductor Components Industries, LLC, 2016

1

March, 2018 − Rev. 9

Publication Order Number:

NCP1070/D

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