onsemi 1 PWM Controller, 65 kHz 35V 7-Pin, SOIC

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We weten niet of dit item nog op voorraad komt, RS is van plan dit binnenkort uit ons assortiment te halen.
RS-stocknr.:
178-4344
Fabrikantnummer:
NCP1239JD65R2G
Fabrikant:
onsemi
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Merk

onsemi

Product Type

PWM Controller

Maximum Switching Frequency

65kHz

Start-up Supply Current

0.5mA

Supply Current

1.4mA

Zero Power Detection

No

Output Current

500mA

Mount Type

Surface

Package Type

SOIC

Minimum Supply Voltage

8V

Maximum Supply Voltage

35V

Topology

Flyback

Pin Count

7

Maximum Duty Cycle

84%

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

150°C

PWM Controller Type

Current Mode

Length

5mm

Series

NCP1239

Standards/Approvals

RoHS, Pb-Free

Height

1.5mm

Automotive Standard

No

Land van herkomst:
PH
The NCP1239 is a fixed-frequency current-mode controller featuring a high-voltage start-up current source to provide a quick and lossless power-on sequence. This function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal start-up current source to supply the controller during start-up, transients, latch, stand-by etc. With a supply range up to 35 V, the controller hosts a jittered 65 or 100-kHz switching circuitry operated in peak current mode control.

Fixed-Frequency 65-kHz or 100-kHz Current-Mode Control Operation

Frequency Foldback Down to 26 kHz and Skip Mode to Maximize Performance in Light Load Conditions

Adjustable Over Power Protection (OPP) Circuit

High-Voltage Current Source with Brown-Out (BO) Detection

Internal Slope Compensation

Internal Fixed Soft-Start

Frequency Jittering in Normal and Frequency Foldback Modes

64-ms Timer-Based Short-Circuit Protection with Auto-Recovery or Latched Operation

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