NCP1083DER2G datasheet(2/18 Pages) ONSEMI

Part #	NCP1083DER2G

Description	Integrated High Power PoE-PD Interface & DC-DC Converter Controller

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Manufacturer	ONSEMI [ON Semiconductor]

Direct Link	http://www.onsemi.com

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NCP1083

http://onsemi.com

2

DC−DC Converter Controller

• Current Mode Control

• Supports Isolated and Non−isolated DC−DC Converter

Applications

• Internal Voltage Regulators

• Wide Duty Cycle Range with Internal Slope

Compensation Circuitry

• Programmable Oscillator Frequency

• Programmable Soft−start Time

(Top View)

PIN DIAGRAM

Exposed

Pad

1

SS

FB

COMP

VDDL

VDDH

GATE

ARTN

nCLASS_AT

CS

OSC

VPORTP

CLASS

UVLO

INRUSH

ILIM1

VPORTN1

RTN

VPORTN2

AUX

TEST

ORDERING INFORMATION

Part Number

Temperature Range

Package

Shipping Configuration†

NCP1083DEG

−40°C to 85°C

TSSOP−20 EP

(Pb−Free)

74 units / Tube

NCP1083DER2G

−40°C to 85°C

TSSOP−20 EP

(Pb−Free)

2500 / Tape & Reel

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specification Brochure, BRD8011/D.

INTERNAL

SUPPLY

&

BANDGAP

VDDH

INRUSH

ILIM1

CLASSIFICATION

DETECTION

VPORTN1,2

VPORTP

CLASS

INRUSH

ILIM1

VDDH

nCLASS_AT

VDDL

THERMAL

SHUT

DOWN

HOT SWAP SWITCH

CONTROL & CURRENT

LIMIT BLOCKS

UVLO

RTN

ARTN

1.2 V

DC−DC

CONVERTER

CONTROL

OSC

SS

FB

COMP

CS

GATE

VDDL

VDDH

5 K

OSC

VPORT

MONITOR

VDDL

Figure 1. NCP1083 Block Diagram

5 mA

AUX

DETECTION

AUXILIARY

SUPPLY

VDDL

20 mA

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NCP1083DER2G Datasheet(PDF) 2 Page - ON Semiconductor

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