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

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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

Maximum Switching Frequency

65kHz

Product Type

PWM Controller

Start-up Supply Current

0.5mA

Output Voltage

16V

Supply Current

1.4mA

Zero Power Detection

No

Output Current

500mA

Number of Outputs

1

Mount Type

Surface

Package Type

SOIC

Minimum Supply Voltage

8V

Topology

Flyback

Pin Count

7

Maximum Supply Voltage

35V

Minimum Operating Temperature

-40°C

Maximum Duty Cycle

84%

Maximum Operating Temperature

150°C

PWM Controller Type

Current Mode

Height

1.5mm

Series

NCP1239

Width

4mm

Standards/Approvals

RoHS, Pb-Free

Length

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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