NCP1013 Ver la hoja de datos (PDF) - ON Semiconductor

Número de pieza

componentes Descripción

Fabricante

NCP1013

Self−Supplied Monolithic Switcher for Low Standby−Power Offline SMPS

ON Semiconductor 

NCP1010, NCP1011,

NCP1012, NCP1013,

NCP1014

Self−Supplied Monolithic

Switcher for Low Standby−

Power Offline SMPS

http://onsemi.com

The NCP101X series integrates a fixed−frequency current−mode

controller and a 700 V MOSFET. Housed in a PDIP−7,

MARKING DIAGRAMS

PDIP−7 Gull Wing, or SOT−223 package, the NCP101X offers

everything needed to build a rugged and low−cost power supply,

including soft−start, frequency jittering, short−circuit protection,

skip−cycle, a maximum peak current setpoint and a Dynamic

Self−Supply (no need for an auxiliary winding).

8

PDIP−7

CASE 626A

AP SUFFIX

P101xAPyy

AWL

YYWW

Unlike other monolithic solutions, the NCP101X is quiet by nature:

1

1

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

frequencies (65 − 100 − 130 kHz). When the current setpoint falls

below a given value, e.g. the output power demand diminishes, the IC

automatically enters the so−called skip−cycle mode and provides

excellent efficiency at light loads. Because this occurs at typically 1/4

of the maximum peak value, no acoustic noise takes place. As a result,

PDIP−7

(Gull Wing)

101xAPLyy

CASE 626AA

AWL

1

APL SUFFIX

YYWW

1

standby power is reduced to the minimum without acoustic noise

4

generation.

Short−circuit detection takes place when the feedback signal fades

away, e.g. in true short−circuit conditions or in broken Optocoupler

cases. External disabling is easily done either simply by pulling the

4

SOT−223

CASE 318E

1

ST SUFFIX

101xy

ALYW

feedback pin down or latching it to ground through an inexpensive

SCR for complete latched−off. Finally soft−start and frequency

1

jittering further ease the designer task to quickly develop low−cost and

x

= Current Limit (0, 1, 2, 3, 4)

robust offline power supplies.

yy

= 06 (65 kHz), 10 (100 kHz), 13 (130 kHz)

For improved standby performance, the connection of an auxiliary

winding stops the DSS operation and helps to consume less than

100 mW at high line. In this mode, a built−in latched overvoltage

protection prevents from lethal voltage runaways in case the

y

A

WL, L

YY, Y

= Oscillator Frequency

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

= Assembly Location

= Wafer Lot

= Year

Optocoupler would brake. These devices are available in economical

WW, W = Work Week

8−pin dual−in−line and 4−pin SOT−223 packages.

ORDERING INFORMATION

See detailed ordering and shipping information in the package

Features

dimensions section on page 22 of this data sheet.

• Built−in 700 V MOSFET with Typical RDSon of 11 W

and 22 W

• Auto−Recovery Internal Output Short−Circuit

Protection

• Large Creepage Distance Between High−Voltage Pins

• Below 100 mW Standby Power if Auxiliary Winding

• Current−Mode Fixed Frequency Operation:

65 kHz – 100 kHz − 130 kHz

is Used

• Internal Temperature Shutdown

• Skip−Cycle Operation at Low Peak Currents Only:

• Direct Optocoupler Connection

No Acoustic Noise!

• Dynamic Self−Supply, No Need for an Auxiliary

Winding

• SPICE Models Available for TRANsient Analysis

• Pb−Free Packages are Available*

• Internal 1.0 ms Soft−Start

• Latched Overvoltage Protection with Auxiliary

Winding Operation

Typical Applications

• Low Power AC/DC Adapters for Chargers

• Auxiliary Power Supplies (USB, Appliances,

• Frequency Jittering for Better EMI Signature

TVs, etc.)

*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting

Techniques Reference Manual, SOLDERRM/D.

© Semiconductor Components Industries, LLC, 2004

1

September, 2004 − Rev. 10

Publication Order Number:

NCP1010/D

Share Link: