NCP12510: Current-Mode PWM Controller for Off-line Power Supplies

The NCP12510 is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a tiny TSOP−6 package. With a voltage supply range up to 35 V, the controller hosts a jittered 65−kHz or 100−kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts decreasing, the controller automatically folds back its switching frequency down to a minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current. The controller has integrated protections such as Over Power Protection (OPP), Over Voltage Protection (OVP) and short-circuit protections. NCP12510 is improved and pin compatible controller based on very popular flyback controller NCP1250.

Features

Frequency Foldback down to 26 kHz and Skip-Cycle in light load conditions
Non-dissipative internal and adjustable Over Power Protection (OPP) circuits
Frequency jittering from full load to skip-cycle
Rich Set of Integrated Protections: Pre-short, OPP, OVP, OCP, SCP, OTP with Auto−Recovery or Latched Options.
Improved IC Power Consumption
Internal Ramp Compensation
High Robustness and High ESD Capabilities

Benefits

High efficiency in light load conditions
Limits maximum delivered power without affecting standby performance
Improved EMI performance
Simple implementation of required protection functions
Higher efficiency and lower No-Load Power Loss
Reduces the number of external components
Robust power supply with up to 4KV ESD

Applications

Offline Adapters
AC-DC converters

End Products

Notebooks and Tablets
General External AC-DC Adapters
Printers
Set-top Boxes

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Current-Mode PWM Controller for Off-line Power Supplies	NCP12510/D (605kB)	2	Dec, 2016

Evaluation Board Documents (5)

Document Title	Document ID/Size	Revision Date
65 W Notebook Off-line Adaptor with NCP12510 EVB User Manual	EVBUM2485/D (550kB)	Aug, 2016
NCP12510B65GEVB Bill Of Materials (ROHS Compliant)	NCP12510B65GEVB_BOM_ROHS.pdf (56kB)
NCP12510B65GEVB Gerber Layout Files (Zip Format)	NCP12510B65GEVB_GERBER.zip (64kB)
NCP12510B65GEVB Schematic	NCP12510B65GEVB_SCHEMATIC.pdf (106kB)
NCP12510B65GEVB Test Procedure	NCP12510B65GEVB_TEST_PROCEDURE.pdf (127kB)

Package Drawings (1)

Document Title	Document ID/Size	Revision
TSOP-6	318G-02 (64.1kB)	V

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description
NCP12510B65GEVB	Intro Pending	Pb-free	65 W notebook adapter Evaluation Board

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NCP12510ASN65T1G	Active	Pb-free Halide free	TSOP-6	318G-02	3	Tape and Reel	3000	$0.1867
NCP12510BSN65T1G	Active	Pb-free Halide free	TSOP-6	318G-02	3	Tape and Reel	3000	$0.1867