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MC33341 Datasheet(PDF) 1 Page - ON Semiconductor

tên linh kiện MC33341
Nội dung chi tiết  POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT
tải về  20 Pages
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Device
Operating
Temperature Range
Package
MC33341
SEMICONDUCTOR
TECHNICAL DATA
POWER SUPPLY
BATTERY CHARGER
REGULATION
CONTROL CIRCUIT
ORDERING INFORMATION
MC33341D
MC33341P
TA = –25° to +85°C
SO–8
Plastic DIP
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
18
7
6
5
2
3
4
(Top View)
Current Sense
Input A
Current Threshold
Adjust
Compensation
Drive Output
PIN CONNECTIONS
Order this document by MC33341/D
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Gnd
VCC
Current Sense Input B/
Voltage Threshold Adjust
Voltage Sense Input
1
MOTOROLA ANALOG IC DEVICE DATA
Power Supply
Battery Charger
Regulation Control Circuit
The MC33341 is a monolithic regulation control circuit that is specifically
designed to close the voltage and current feedback loops in power supply
and battery charger applications. This device features the unique ability to
perform source high–side, load high–side, source low–side and load
low–side current sensing, each with either an internally fixed or externally
adjustable threshold. The various current sensing modes are accomplished
by a means of selectively using the internal differential amplifier, inverting
amplifier, or a direct input path. Positive voltage sensing is performed by an
internal voltage amplifier. The voltage amplifier threshold is internally fixed
and can be externally adjusted in all low–side current sensing applications.
An active high drive output is provided to directly interface with economical
optoisolators for isolated output power systems. This device is available in
8–lead dual–in–line and surface mount packages.
Differential Amplifier for High–Side Source and Load Current Sensing
Inverting Amplifier for Source Return Low–Side Current Sensing
Non–Inverting Input Path for Load Low–Side Current Sensing
Fixed or Adjustable Current Threshold in All Current Sensing Modes
Positive Voltage Sensing in All Current Sensing Modes
Fixed Voltage Threshold in All Current Sensing Modes
Adjustable Voltage Threshold in All Low–Side Current Sensing Modes
Output Driver Directly Interfaces with Economical Optoisolators
Operating Voltage Range of 2.3 V to 16 V
Representative Block Diagram
This device contains 114 active transistors.
8
Drive
Output
1
Current Sense
Input A
7
VCC
2
Current
Threshold Adjust
6
Current Sense Input B/
Voltage Threshold Adjust
3
Compensation
5
Voltage Sense
Input
4
Gnd
Differential
Amp
Inverting/
Noninverting Amp
V
I
0.2 V
1.2 V
Reference
Voltage and Current
Transconductance
Amp/Driver
1.0
#1.0
© Motorola, Inc. 1998
Rev 1



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