NCP1253 Current-Mode PWM Controller

ON Semiconductor

Description

DATA SHEET www.onsemi.com Current-Mode PWM Controller for Off-line Power Supplies NCP1253 The NCP1253 is a highly integrated PWM controller capable o.
Pin No. Feedback pin 3 NC Non. connected pin 4 CS Current sense + ramp compensation 5 VCC.

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Datasheet Specifications

Part number: NCP1253
Manufacturer: ON Semiconductor ↗
File Size: 396.64 KB
Datasheet: NCP1253-ONSemiconductor.pdf
Description: Current-Mode PWM Controller

Features

* Fixed
* Frequency 65 kHz or 100 kHz Current
* Mode Control Operation
* Frequency Foldback Down to 26 kHz and Skip
* Cycle in Light Load Conditions
* Adjustable Ramp Compensation
* Internally Fixed 4 ms soft
* start
* Timer
* based Auto
* Reco

Applications

* Ac
* dc Converters for TVs, Set
* top Boxes and Printers
* Offline Adapters for Notebooks and Netbooks MARKING DIAGRAM TSOP
* 6 CASE 318G 53xAYWG 1 STYLE 13 G 1 53 = Specific Device Code x = A, 2, C, or D A = Assembly Location Y = Year W = Work Week G

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NCP1253 Current-Mode PWM Controller ON Semiconductor

ON Semiconductor NCP1253-like datasheet