Voltage References | NCS1002

Secondary-Side Controller, Constant Current, Constant Voltage

Active

Datasheet

Products

Similar Products

Overview

The NCS1002 Constant Voltage and Constant Current Secondary Controller is a highly integrated solution for Switching Mode Power Supply (SMPS) applications requiring a dual control loop to perform Constant Voltage (CV) and Constant Current (CC) regulation. The NCS1002 integrates a 2.5 V voltage reference and two precision op amps. The voltage reference, along with Op Amp 1, is the core of the voltage control loop. Op Amp 2 is an independent, uncommitted amplifier specifically designed for the current control.Key external components needed to complete the two control loops are: (a)A resistor dividerthat senses the output of the power supply (battery charger) and fixes the voltage regulation set point at the specified value. (b) A sense resistor that feeds the current sensing circuit with a voltage proportional to the DC output current. This resistor determines the current regulation set point and must be adquately rated in terms of power dissipation. The NCS1002 comes in a small 8-pin SOIC package and is ideal for space-shrunk applications such as battery chargers.

  • Voltage regulation

  • LED Lighting
  • Switch Mode Power Supplies

  • Low Input Offset Voltage: 0.5mV, Typ
  • Input Common-Mode Range includes Ground.
  • Low Quiescent Current: 300uA per op amp at Vcc=5V.
  • Wide Power Supply Range: 3V to 32V

Tools and Resources

Product services, tools and other useful resources related to NCS1002

CAD Model

CAD Model

Material Composition

Product Change Notification

Reliability Data

Product List

If you wish to buy products or product samples, please log in to your onsemi account.

Search

Close Search

Products:

1

Share

Sort by

Product Groups:

┗

Orderable Parts:

1

Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

V(BR) Typ (V)

Tolerance (%)

IQ Typ (mA)

IR Min (mA)

VF Max (V)

TA Min (°C)

TA Max (°C)

Reference Price

NCS1002DR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

Y

Adjustable

2.5

0.4

0.4

0.04

36

-40

105

$0.2419

More Details

Show More

1-25 of 25

Products per page

Jump to :

1
contact sales icon

Support on the go

Find and compare products, get support and connect with onsemi sales team.

Reliability Data

Die Related Summary Data

Device: NCS1002DR2G

Equivalent to wafer fab process: BP STD LINEAR

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

BP STD LINEAR

10

12120914040

More Details

Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

New Search