|
|
PDF MC33341 Data sheet ( Hoja de datos )
| Número de pieza | MC33341 | |
| Descripción | Power Supply Battery Charger Regulation Control Circuit | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MC33341 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
|
No Preview Available !
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
1 page  
MC33341
60
50 Phase
40
30 Gain
20 VCC = 6.0 V
VO = 1.0 V
10
RL = 1.0 k
Pin 3 = 1.0 nF
TA = 25°C
0
1.0 k
10 k
100 k
f, FREQUENCY (Hz)
Figure 8. Bode Plot
Voltage Sensing Inputs to Drive Output
80
100
120
140
160
180
1.0 M
60
50 Phase
Low−Side Sensing
40
Phase
High−Side Sensing
80
100
120
30 Gain
20 VCC = 6.0 V
VO = 1.0 V
10
RL = 1.0 k
Pin 3 = 1.8 nF
TA = 25°C
0
1.0 k
10 k
100 k
140
160
180
1.0 M
f, FREQUENCY (Hz)
Figure 9. Bode Plot
Current Sensing Inputs to Drive Output
8.0
VCC = 6.0 V
VO = 1.0 V
6.0 TA = 25°C
4.0
2.0
0
0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10
IO, DRIVE OUTPUT LOAD CURRENT (mA)
Figure 10. Transconductance
Voltage Sensing Inputs to Drive Output
0
−0.4
VCC
VCC = 6.0 V
TA = 25°C
−0.8
−1.2
−1.6
−2.0
0 4.0 8.0 12 16 20
IL, OUTPUT LOAD CURRENT (mA)
Figure 12. Drive Output High State
Source Saturation versus Load Current
8.0
VCC = 6.0 V
VO = 1.0 V
6.0 TA = 25°C
4.0
2.0
0
0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10
IO, DRIVE OUTPUT LOAD CURRENT (mA)
Figure 11. Transconductance
Current Sensing Inputs to Drive Output
1.0
Drive Output High State
0.8
0.6 IO = 0 mA
TA = 25°C
0.4
Drive Output Low State
0.2
0
0 4.0 8.0 12 16
VCC, SUPPLY VOLTAGE (V)
Figure 13. Supply Current
versus Supply Voltage
http://onsemi.com
5
5 Page 
Source
Opto
Isolator
Source
Return
MC33341
R2
R3
Load
RS
8 765
VCC
1.2 V Differential Amp
Disable Logic 0.4 V
VCC
1.2 V
VCC
VCC
Differential Amp
RR
VCC
RR
R
R
VCC
VCC
Inverting Amp
Vsen Transconductance
Vth V
Amp
Isen
Ith I
VCC
Reference
0.2 V 0.4 V 1.2 V
VCC
0.2 V
1 234
R1
Battery or
Resistive
Load
Comp
Load
The above figure shows the MC33341 configured for load high−side current sensing allowing common paths for both power and ground,
between the source and load. The Differential Amplifier inputs, Pins 1 and 6, are used to sense the load induced voltage drop that appears
across resistor RS. The internal voltage and current regulation thresholds are selected by the respective external connections of Pins 2 and
6. Resistor R3 is required in applications where high peak levels of load current are possible from the battery or load bypass capacitor. The
resistor value should be chosen to limit the input current of the internal VCC clamp diode to less than 20 mA. Excessively large values for
R3 ill degrade the current sensing accuracy.
ǒ ǓVreg + Vth(V)
R2
R1
)
1
ǒ Ǔ+ 1.2
R2
R1
)
1
Ireg
+
Vth(I HS)
RS
+
0.2
RS
ǒ ǓIpk RS – 0.6
R3 +
0.02
Figure 18. Load High−Side Current Sensing with
Internally Fixed Current and Voltage Thresholds
http://onsemi.com
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MC33341.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MC3334 | HIGH ENERGY IGNITION CIRCUIT |  Motorola Semiconductors |
| MC33340 | BATTERY FAST CHARGE CONTROLLER | Motorola Semiconductors |
| MC33340 | (MC33340 / MC33342) Battery Fast Charge Controllers | ON Semiconductor |
| MC33341 | POWER SUPPLY BATTERY CHARGER REGULATION CONTROL CIRCUIT | Motorola Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |