NCP1252DDR2G AC-DC Power Conversion by ON Semiconductor

PWM Controller, Current Mode, for Forward and Flyback Applications

Status: Active
Series: NCP1252
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The NCP1252 controller offers everything needed to build cost effective and reliable ac-dc switching supplies dedicated to ATX power supplies or any forward application. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown-Out input offers protection against low input voltages and improves the converter safety. Finally, the SOIC-8 package saves PCB space and represents a solution of choice in cost sensitive project.

Where to Buy

Prices starting from US$0.37

Distributor Stock
Logo for Farnell
Farnell
from US$0.37
No stock
Buy Now
Logo for Avnet Asia
Avnet Asia
-
12,500
in stock
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Logo for Newark Electronics
Newark Electronics
from US$0.41
-
Buy Now
Logo for Future Electronics
Future Electronics
from US$0.38
-
Buy Now
Logo for Avnet America
Avnet America
from US$0.39
-
Buy Now
Logo for EBV Elektronik
EBV Elektronik
-
-
Buy Now
Logo for Avnet Silica
Avnet Silica
-
-
Buy Now

Features

Peak current mode control
Adjustable switching frequency
Latched primary overcurrent protection with 10 ms fixed delay
Adjustable soft start timer
Auto recovery brown out detection
Internal 160 ns leading edge blanking
Frequency jittering
Adjustable internal ramp compensation
+500 mA / -800 mA Source/Sink current driver capability
Skip cycle operation in light/no load operation
SOIC-8 package
Extended Vcc range up to 28 V with auto recovery UVLO
Benefits
Help to build rugged power supplies
High flexibility on the switching frequency
Allow temporary over load/current and latch permanent fault
Flexibility on the soft start duration
Resume the power supply operation after a brown out detection
Noise immunity improved
Improve the EMI signature by spreading the noise
Save external components
No need of external power MOSFET driver
Save dummy load
Save PCB area
Applications
Power supplies for PC silver boxes
Game Adapter
Desktops
End Products
Ac-dc adapter converter
Flyback and Forward Application

Specifications

Description NCP1252
Compliance Pb-free Halide free
Topology Flyback Forward
Control Mode Current Mode
fsw Typ (kHz) Up to 500
Stand-by Mode Yes
UVLO (V) 9 to 10
Short Circuit Protection Yes
Latch Yes
Soft Start Yes
VCC Max (V) 28
Drive Cap. (mA) 500 / 800
Package Type SOIC-8

Alternative Descriptions

PWM Controller, Peak Current Mode Control, 9 V to 28 V, 500 kHz, 8 Pins, SOIC-N | Avnet Asia
Pwm Controller, Flyback, 500Khz, Nsoic-8 | Newark Electronics
NCP1252 Series 28 V 500 kHz Forward and Flyback PWM Controller - SOIC-8 | Future Electronics
PWM CONTROLLER, FLYBACK, 500KHZ, NSOIC-8 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a NCP1252DDR2G?

Additional datasheets, footprints and schematics for NCP1252DDR2G are listed on our Part Details page. You can also find images and similar parts to NCP1252DDR2G on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for NCP1252DDR2G on our Product Comparison page. Access via the 'View Pricing & Stock' button to view NCP1252DDR2G price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does NCP1252DDR2G fall under?

The NCP1252DDR2G is listed under Power Management > AC-DC Power Conversion > Offline Controllers.

Can I view similar or alternative parts?

You can view similar parts to NCP1252DDR2G when available in the Offline Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the NCP1252DDR2G you can contact the distributor directly for product support, shipping queries etc.

Is the NCP1252DDR2G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for NCP1252DDR2G have stock available?

Authorised distributors including Avnet Asia, Newark Electronics, Future Electronics, Avnet America and Farnell have stock available or on a lead time for NCP1252DDR2G.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for NCP1252DDR2G often in real-time on the comparison pages.

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