Datasheet NCP1200 (ON Semiconductor)

ПроизводительON Semiconductor
ОписаниеPWM Current-Mode Controller for Low-Power Universal Off-Line Supplies
Страниц / Страница16 / 1 — www.onsemi.com. MARKING. DIAGRAMS. SOIC−8. D SUFFIX. CASE 751. PDIP−8. P …
Формат / Размер файлаPDF / 288 Кб
Язык документаанглийский

www.onsemi.com. MARKING. DIAGRAMS. SOIC−8. D SUFFIX. CASE 751. PDIP−8. P SUFFIX. CASE 626. Features. PIN CONNECTIONS. Typical Applications

Datasheet NCP1200 ON Semiconductor

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link to page 14 NCP1200 PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies Housed in SOIC−8 or PDIP−8 package, the NCP1200 represents a major leap toward ultra−compact Switchmode Power Supplies. Due to
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a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external
MARKING
components. Furthermore, an integrated output short−circuit
DIAGRAMS
protection lets the designer build an extremely low−cost AC−DC wall 8 adapter associated with a simplified feedback scheme.
SOIC−8
200Dy With an internal structure operating at a fixed 40 kHz, 60 kHz or
D SUFFIX
ALYW 100 kHz, the controller drives low gate−charge switching devices like 8
CASE 751
G an IGBT or a MOSFET thus requiring a very small operating power. 1 1 Due to current−mode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with extremely low 8 acoustic generation and inherent pulse−by−pulse control.
PDIP−8 P SUFFIX
1200Pxxx When the current setpoint falls below a given value, e.g. the output
CASE 626
AWL power demand diminishes, the IC automatically enters the skip cycle 8 YYWWG mode and provides excellent efficiency at light loads. Because this 1 1 occurs at low peak current, no acoustic noise takes place. Finally, the IC is self−supplied from the DC rail, eliminating the xxx = Device Code: 40, 60 or 100 need of an auxiliary winding. This feature ensures operation in y = Device Code: presence of low output voltage or shorts. 4 for 40 6 for 60 1 for 100
Features
A = Assembly Location • L = Wafer Lot No Auxiliary Winding Operation Y, YY = Year • Internal Output Short−Circuit Protection W, WW = Work Week • Extremely Low No−Load Standby Power G, G = Pb−Free Package • Current−Mode with Skip−Cycle Capability • Internal Leading Edge Blanking •
PIN CONNECTIONS
250 mA Peak Current Source/Sink Capability • Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz Adj HV • 1 8 Direct Optocoupler Connection • FB 2 7 NC Built−in Frequency Jittering for Lower EMI • CS V SPICE Models Available for TRANsient and AC Analysis 3 6 CC • Internal Temperature Shutdown GND 4 5 Drv • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant (Top View)
Typical Applications

ORDERING INFORMATION
AC−DC Adapters • See detailed ordering and shipping information on page 14 of Offline Battery Chargers this data sheet. • Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.) © Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
April, 2015 − Rev. 19 NCP1200/D
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