NCS1002DR2G ON Semiconductor, NCS1002DR2G Datasheet

NCS1002DR2G

Manufacturer Part Number

NCS1002DR2G

Description

IC CTLR CV/CC SMPS 8-SOIC

Manufacturer

ON Semiconductor

Datasheet

1.NCS1002DR2G.pdf (9 pages)

Specifications of NCS1002DR2G

Output Isolation

Isolated

Voltage - Input

3 ~ 32 V

Operating Temperature

-40°C ~ 150°C

Package / Case

8-SOIC (0.154", 3.90mm Width)

Product

Voltage References

Reference Type

Precision

Output Voltage

36 V

Series Vref - Input Voltage (max)

2.52 V

Series Vref - Input Voltage (min)

2.48 V

Maximum Operating Temperature

+ 125 C

Input Voltage

- 0.3 V to + 36 V

Mounting Style

SMD/SMT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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NCS1002

Constant Voltage / Constant

Current SecondarySide

Controller

Description

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 divider that 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 adequately 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.

Features

•

Typical Applications

•

July, 2009 − Rev. 1

The NCS1002 is a highly integrated solution for Switching Mode

Low Input Offset Voltage: 0.5 mV, Typ

Input Common-Mode Range includes Ground

Low Quiescent Current: 300 mA per Op Amp at V

Large Output Voltage Swing

Wide Power Supply Range: 3 V to 32 V

High ESD Protection: 2 kV

These are Pb−Free Devices

Battery Chargers

Switch Mode Power Supplies

= 5 V

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

(Note: Microdot may be in either location)

ORDERING INFORMATION

Out 1

In 1−

In 1+

GND

PIN CONNECTIONS

http://onsemi.com

CASE 751

D SUFFIX

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

SOIC−8

(Top View)

Publication Order Number:

DIAGRAMS

MARKING

Out 2

In 2−

In 2+

ALYWG

1002

NCS1002/D

Related parts for NCS1002DR2G

NCS1002DR2G Summary of contents

Page 1

NCS1002 Constant Voltage / Constant Current SecondarySide Controller Description The NCS1002 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 ...

Page 2

MAXIMUM RATINGS Parameter Supply Voltage (V to GND) CC Differential Input Voltage Input Voltage ESD Protection Voltage at Pin Maximum Junction Temperature Specification Temperature Range (T min Operating Free−Air Temperature Range Storage Temperature Range Stresses exceeding Maximum Ratings may damage ...

Page 3

ELECTRICAL CHARACTERISTICS Symbol Characteristics I Total Supply Current, excluding current in the Voltage Reference V CC load; − +105° Total Supply Current, excluding Current in the Voltage Reference V CC load; − ...

Page 4

ELECTRICAL CHARACTERISTICS (continued) Symbol Characteristics OP AMP 2 (INDEPENDENT OP AMP) (continued Input Common Mode Voltage Range (Note 2) ICM ( CMRR Common Mode Rejection Ratio (Note 4) I Output Current Source (V = ...

Page 5

OP1 0.4 0.2 0 −50 −30 − TEMPERATURE (°C) Figure 1. Input Offset Voltage vs. Temperature 2.6 2.58 2.56 2.54 2.52 2.5 2.48 2.46 2.44 2.42 2 ...

Page 6

SUPPLY VOLTAGE (V) Figure 7. NCS1002 PSRR vs. Supply Voltage 0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 20 50 100 ...

Page 7

http://onsemi.com 7 ...

Page 8

... ORDERING INFORMATION Device NCS1002DR2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Package SOIC−8 (Pb−Free) http://onsemi.com 8 † Shipping 2500 / Tape & Reel ...

Page 9

... *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “ ...

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