NCP4300A
Dual Operational Amplifier
and Voltage Reference
The NCP4300A is a monolithic integrated circuit specifically
designed to control the output current and voltage levels of switch
mode battery chargers and power supplies. This device contains a
precision 2.6 V shunt reference and two operational amplifiers.
Op−Amp 1 is designed to perform voltage control and has its
non−inverting input internally connected to the reference. Op−Amp 2
is designed for current control and has both inputs uncommitted. The
NCP4300A offers the power converter designer a control solution that
features increased precision with a corresponding reduction in system
complexity and cost. This device is available in an 8−lead surface
mount package.
http://onsemi.com
MARKING
DIAGRAM
8
SOIC−8
D SUFFIX
CASE 751
N4300
ALYWA
G
8
1
1
Features
• Pb−Free Packages are Available
A
L
= Assembly Location
= Wafer Lot
Operational Amplifier
Y
= Year
• Low Input Offset Voltage: 0.5 mV
• Input Common Mode Voltage Range Includes Ground
W = Work Week
A = Option Code
• Low Supply Current: 210 mA/Op−Amp (@V = 5.0 V)
CC
• Medium Unity Gain Bandwidth: 0.7 MHz
• Large Output Voltage Swing: 0 V to V − 1.5 V
• Wide Power Supply Voltage Range: 3.0 V to 35 V
CC
PIN CONNECTIONS
1
2
3
4
8
7
6
5
Voltage Reference
Out 1
V
CC
In 1−
In 1+
GND
Out 2
In 2−
• Fixed Output Voltage Reference: 2.60 V
• High Precision Over Temperature: 1.0%
• Wide Sink Current Range: 80 mA to 80 mA
In 2+
(Top View)
Typical Applications
• Battery Charger
• Switch Mode Power Supply
ORDERING INFORMATION
†
Device
Package
Shipping
NCP4300AD
SOIC−8
98 Units / Rail
98 Units / Rail
8
V
1
2
3
Output 1
Inputs 1
GND
CC
NCP4300ADG
SOIC−8
(Pb−Free)
+
7
6
Output 2
Inputs 2
NCP4300ADR2
SOIC−8
2500/Tape & Reel
2500/Tape & Reel
+
NCP4300ADR2G
SOIC−8
(Pb−Free)
2.6 V
4
5
†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.
Figure 1. Functional Block Diagram
Semiconductor Components Industries, LLC, 2005
1
Publication Order Number:
March, 2005 − Rev. 3
NCP4300A/D