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GS34063 Datasheet Download - Globaltech Semiconductor

Номер произв GS34063
Описание DC-To-DC Converter Control Circuits
Производители Globaltech Semiconductor
логотип Globaltech Semiconductor логотип 

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GS34063 Даташит, Описание, Даташиты
DC-To-DC Converter Control Circuits
DEC. 2009
Product Description
The GS34063 Series is a monolithic control circuit
containing the primary functions required for
DC-to-DC converters.
These devices consist of an internal temperature
compensated reference, comparator, controlled
duty cycle oscillator with an active current limit
circuit, driver and high current output switch.
www.DataShTeheist4sUe.crioems 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 3.0V to 40V Input
Low Standby Current
Current Limiting
Output Switch Current to 1.5A
Output Voltage Adjustable
Frequency Operation to 100kHz
Precision 2% Reference
Applications
Battery Powered Applications
Laptop/Notebook Computers
Power Inverter (+ to -) or (- to +)
Medical Instruments
Interface Power Supplies
Portable Instruments
Cellular Phones/Radio
Block Diagram
VCC 6
Switch Collector 1
Driver Collector 8
Switch Emitter 2
Timing Capacitor 3
Ipk Sense 7
Comparator
Inverting Input
5
GND 4
SQ
Q2
R
100
Q1
CT
Ipk
Comparator
Oscillator
+
1.25V
Reference
- Regulator
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GS34063 Даташит, Описание, Даташиты
Packages & Pin Assignments
GS34063PF(SOP-8)
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1
2
3
4
Switch Collector
Switch Emitter
Timing Capacitor
GND
Ordering Information
5 Comparator Inverting Input
6 VCC
7 Ipk Sense
8 Driver Collector
Device
GS34063PF
GS34063SF
For additional available fixed voltages, please contact factory.
Marking Information
Package
DIP-8
SOP-8
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GS34063 Даташит, Описание, Даташиты
Absolute Maximum Ratings
Symbol
VCC
VIR
VC(switch)
VE(switch)
VCE(switch)
VC(driver)
IC(driver)
ISW
PD
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θJc
θJA
TJ
TA
TSTG
Parameter
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (VPIN1=40V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current (Note 1)
Switch Current
Power Dissipation
TA=25°C
Thermal Resistance(Junction to Case )
TA=25°C
Thermal Resistance(Junction to Ambient )
TA=25°C
Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
Rating
40
-0.3 to +40
40
40
40
40
100
1.5
SOP-8
0.625
DIP-8
1.25
SOP-8
20
DIP-8
45
SOP-8
150
DIP-8
100
+150
0 to +70
-65 to +150
Unit
V
V
V
V
V
V
mA
A
W
°C/W
°C/W
°C
°C
°C
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