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MC33341 Datasheet

POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT

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Advance Information
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
Drive
Output
8
Current Sense Input B/ Voltage Sense
VCC Voltage Threshold Adjust Input
7 65
Order this document by MC33341/D
MC33341
POWER SUPPLY
BATTERY CHARGER
REGULATION
CONTROL CIRCUIT
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
PIN CONNECTIONS
Differential
Amp
1.0
#1.0
1.2 V
0.2 V
Inverting/
Noninverting Amp
Voltage and Current
Transconductance
Amp/Driver
V
I
Reference
1
Current Sense
Input A
2
Current
Threshold Adjust
3
Compensation
This device contains 114 active transistors.
4
Gnd
This document contains information on a new product. Specifications and information herein
arMe OsuTbjOecRt tOo cLhAangAeNwAithLoOut GnotIiCce.DEVICE DATA
Current Sense
Input A
1
Current Threshold
Adjust
2
Compensation 3
Gnd 4
8 Drive Output
7 VCC
6
Current Sense Input B/
Voltage Threshold Adjust
5 Voltage Sense Input
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC33341D
TA = –25° to +85°C
MC33341P
SO–8
Plastic DIP
© Motorola, Inc. 1996
Rev 0
1


Motorola Electronic Components Datasheet

MC33341 Datasheet

POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT

No Preview Available !

MC33341
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Supply Voltage (Pin 7)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVoltage Range
Current Sense Input A (Pin 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Threshold Adjust (Pin 2)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCompensation (Pin 3)
Voltage Sense Input (Pin 5)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Input B/Voltage Threshold Adjust (Pin 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDrive Output (Pin 8)
VCC
VIR
16
–1.0 to VCC
V
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDrive Output Source Current (Pin 8)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁThermal Resistance, Junction–to–Air
P Suffix, DIP Plastic Package, Case 626
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁD Suffix, SO–8 Plastic Package, Case 751
ISource
RθJA
50 mA
°C/W
100
178
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Junction Temperature (Note 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁStorage Temperature
TJ –25 to +150 °C
Tstg –55 to +150 °C
NOTE: ESD data available upon request.
ELECTRICAL CHARACTERISTICS (VCC = 6.0 V, TA = 25°C, for min/max values TA is the operating junction
temperature range that applies (Note 1), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCURRENT SENSING (Pins 1, 2, 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁHigh–Side Source and Load Sensing Pin 1 to Pin 6 (Pin 1 >1.6 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInternally Fixed Threshold Voltage (Pin 2 = VCC)
Vth(I HS)
mV
TA = 25°C
187 197 207
TA = Tlow to Thigh
183 – 211
Externally Adjusted Threshold Voltage (Pin 2 = 0 V)
Externally Adjusted Threshold Voltage (Pin 2 = 200 mV)
– 10 –
– 180 –
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLow–Side Load Sensing Pin 1 to Pin 4 (Pin 1 = 0 V to 0.8 V)
Vth(I LS+)
mV
Internally Fixed Threshold Voltage (Pin 2 = VCC)
TA = 25°C
194 200 206
TA = Tlow to Thigh
192 – 208
Externally Adjusted Threshold Voltage (Pin 2 = 0 V)
– 10 –
Externally Adjusted Threshold Voltage (Pin 2 = 200 mV)
– 180 –
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLow–Side Source Return Sensing Pin 1 to 4 (Pin 1 = 0 V to –0.2 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInternally Fixed Threshold Voltage (Pin 2 = VCC)
Vth(I LS–)
mV
TA = 25°C
–195
–201
–207
TA = Tlow to Thigh
–193 – –209
Externally Adjusted Threshold Voltage (Pin 2 = 0 V)
Externally Adjusted Threshold Voltage (Pin 2 = 200 mV)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Input A (Pin 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInput Bias Current, High–Side Source and Load Sensing
IIB(A HS)
–10
–180
40
µA
(Pin 2 = 0 V to VPin 6 V)
Input Bias Current, Low–Side Load Sensing
(Pin 2 = 0 V to 0.8 V)
IIB(A LS+)
10
– nA
Input Resistance, Low–Side Source Return Sensing
(Pin 2 = –0.6 V to 0 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Input B/Voltage Threshold Adjust (Pin 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInput Bias Current
Rin(A LS–)
10
– k
IIB(B)
High–Side Source and Load Current Sensing (Pin 6 > 2.0 V)
Voltage Threshold Adjust (Pin 6 < 1.2 V)
– 20 – µA
– 100 – nA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Threshold Adjust (Pin 2)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInput Bias Current
IIB(I th)
10
– nA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTransconductance, Current Sensing Inputs to Drive Output
gm(I)
6.0
– mhos
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁNOTE: 1. Tested ambient temperature range for the MC33341: Tlow = –25°C, Thigh = +85°C.
2 MOTOROLA ANALOG IC DEVICE DATA


Part Number MC33341
Description POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT
Maker Motorola
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