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PDF AV34063 Data sheet ( Hoja de datos )
| Número de pieza | AV34063 | |
| Descripción | Step-Up/Down Inverting Switching Regulators | |
| Fabricantes | Avic Technology | |
| Logotipo |  |
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@vic
AV34063
1.5A,Step-Up/Down Inverting Switching Regulators
DESCRIPTION
The AV34063 is a monolithic control circuit containing the
primary functions required for DC-to-DC converters. This device
consists of an internal temperature compensated reference,
comparator, controlled duty cycle oscillator with an active current
limit circuit,driver and high current output switch. This device was
specifically designed to be incorporated in Step-Down and Step-Up
and Voltage-inverting applications with a minimum number of
external components.
FEATURES
Operation from 3.0 to 40V input
Low standby current
Current limiting
Output switch current of 1.5A
Output voltage adjustable
Frequency of operation from 100Hz to 100KHz
Precision 2% reference
DIP-8
SOP-8
BLOCK DIAGRAM
8
Drive
Collector
7
IPK
Sense
6
VCC
Comparator
Inverting
Input
5
S Q Q2
R
100
Q1
IPK
Oscillalo
CT
Comparator
1.25
Reference
Regulator
1
Switch
Collector
www.DataSheet.net/
2
Switch
Emitter
3
Timing
Capacitor
4
Gnd
(Bottom View)
Switch
Collector
1
Switch
Emitter
2
Timing
Capacitor
3
Gnd 4
8
Drive
Collector
7 IPK
Sense
6 VCC
5
(Top View)
Comparator
Inverting
Input
ORDERING INFORMATION
Part Number
AV34063
AV34063S
Operating Temperature Range
0℃~+70℃
0℃~+70℃
Package Type
DIP-8
SOP-8
Copyright © Avic Electronics Corp.
1
Website: http://www.avictek.com
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
@vic
AV34063
170µH
8
180
7
RSC
0.22
6
100
5
R1
2.2K
L
1
S Q Q2
R Q1
2
IP CT
OSC
1N5819
3
VCC
1.25V
Comp.
Ref
Reg
CT
1500pF
4
VOUT
28V/175mA
R 2 CO
47K 330
1.0µH
VOUT
100
Optional Filter
Test
Line Regulation
Load Regulation
Output Ripple
Effciency
Output Ripple With Optional Filter
Conditions
Vin = 8.0 V to 16 V, IO = 175 mA
Vin = 12 V, IO = 75 mA to 175 mA
Vin = 12 V, I = 175 mAO
www.DataSheet.net/
Vin = 12 V, IO = 175 mA
Vin = 12 V, IO = 175 mA
Figure 7. Step–Up Converter
Results
30 mV = ±0.05%
10 mV = ±0.017%
400 mVpp
87.7%
40 mVpp
8
RSC
Vin
7
6
1
VOUT
8
27
RSC
Vin
6
1 VOUT
2
R → 0 for
constant Vin
8a. External NPN Switch
8b. External NPN Saturated Switch
Figure 8. External Current Boost Connections for IC Peak Greater than 1.5 A
Copyright © Avic Electronics Corp.
5
Website: http://www.avictek.com
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AV34063.PDF ] | |
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