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MC33341 Datasheet

Power Supply Battery Charger Regulation Control Circuit

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MC33341
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.
Features
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 Modeswww.DataSheet4U.com
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
Pb−Free Packages are Available
Drive Output
Current Sense Input B/ Voltage Sense
VCC Voltage Threshold Adjust Input
8 7 65
Differential
Amp
1.0
1.2 V
#1.0
0.2 V
Inverting/
Noninverting Amp
Voltage and Current
Transconductance
Amp/Driver
V
I
Reference
http://onsemi.com
MARKING
DIAGRAMS
8
SOIC−8
33341
D SUFFIX
ALYW
1 CASE 751
G
1
8
PDIP−8
P SUFFIX
CASE 626
MC33341P
AWL
YYWWG
11
A = Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
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
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
1 23
Current Sense Input A
Current
Compensation
Threshold Adjust
This device contains 114 active transistors.
4
GND
Figure 1. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2006
August, 2006 − Rev. 4
1
Publication Order Number:
MC33341/D


  ON Semiconductor Electronic Components Datasheet  

MC33341 Datasheet

Power Supply Battery Charger Regulation Control Circuit

No Preview Available !

MC33341
MAXIMUM RATINGS
Rating
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Supply Voltage (Pin 7)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVoltage Range
Current Sense Input A (Pin 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Threshold Adjust (Pin 2)
Compensation (Pin 3)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁVoltage Sense Input (Pin 5)
Current Sense Input B / Voltage Threshold Adjust (Pin 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDrive Output (Pin 8)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁDrive Output Source Current (Pin 8)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁThermal Resistance, Junction−to−Air
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁP Suffix, DIP Plastic Package, Case 626
D Suffix, SO−8 Plastic Package, Case 751
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Junction Temperature (Note 1)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁStorage Temperature
Symbol
VCC
VIR
Value
16
−1.0 to VCC
Unit
V
V
ISource
RqJA
TJ
Tstg
50
100
178
−25 to +150
−55 to +150
mA
°C/W
°C
°C
NOTE: ESD data available upon request.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Tested ambient temperature range for the MC33341: Tlow = −25°C, Thigh = +85°C.
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
CURRENT SENSING (Pins 1, 2, 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁHigh−Side Source and Load Sensing Pin 1 to Pin 6 (Pin 1 >1.6 V)
Vth(I HS)
mV
Internally Fixed Threshold Voltage (Pin 2 = VCC)
TA = 25°C
187 197 207
TA = Tlow to Thigh
183 − 211
Externally Adjusted Threshold Voltage (Pin 2 = 0 V)
− 10 −
Externally Adjusted Threshold Voltage (Pin 2 = 200 mV)
− 180 −
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLow−Side Load Sensing Pin 1 to Pin 4 (Pin 1 = 0 V to 0.8 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInternally Fixed Threshold Voltage (Pin 2 = VCC)
Vth(I LS+)
mV
TA = 25°C
194 200 206
TA = Tlow to Thigh
192 − 208
Externally Adjusted Threshold Voltage (Pin 2 = 0 V)
Externally Adjusted Threshold Voltage (Pin 2 = 200 mV)
− 10 −
− 180 −
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLow−Side Source Return Sensing Pin 1 to 4 (Pin 1 = 0 V to −0.2 V)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInternally 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)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Input A (Pin 1)
− −10 −
− −180 −
Input Bias Current, High−Side Source and Load Sensing
IIB(A HS)
40
mA
(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)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Input B/Voltage Threshold Adjust (Pin 6)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInput Bias Current
Rin(A LS−)
10
− kW
IIB(B)
High−Side Source and Load Current Sensing (Pin 6 > 2.0 V)
Voltage Threshold Adjust (Pin 6 < 1.2 V)
− 20 − mA
− 100 − nA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense Threshold Adjust (Pin 2)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁInput Bias Current
IIB(I th)
10
− nA
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁTransconductance, Current Sensing Inputs to Drive Output
gm(I)
6.0
− mhos
http://onsemi.com
2


Part Number MC33341
Description Power Supply Battery Charger Regulation Control Circuit
Maker ON Semiconductor
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MC33341 Datasheet PDF






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