Converter Controller. MC34063 Datasheet

MC34063 Controller. Datasheet pdf. Equivalent

Part MC34063
Description DC to DC Converter Controller
Feature ( DataSheet : www.DataSheet4U.com ) UTC MC34063 LINEAR INTEGRATED CIRCUIT DC TO DC CONVERTER CONTRO.
Manufacture Unisonic Technologies
Datasheet
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MC34063
( DataSheet : www.DataSheet4U.com )
UTCMC34063 LINEAR INTEGRATED CIRCUIT
DC TO DC CONVERTER
CONTROLLER
DESCRIPTION
The UTC MC34063 is a monolithic regulator
subsystem, intended for use as DC to DC converter.
This device contains a temperature compensated
band gap reference, a duty-cycle control oscillator,
driver and high current output switch. It can be used
for step down, step-up or inverting switching
regulators as well as for series pass regulators.
FEATURES
*Operation from 3.0V to 40V.
*Short circuit current limiting.
*Low standby current.
*Output switch current of 1.5A without external
transistors.
*Frequency of operation from 100Hz to 100kHz.
*Step-up, step-down or inverting switch regulators.
PIN CONFIGURATION
Switch
Collector
Switch
Emitter
Timing
Capacitor
Gnd
1
2
3
4
8
Driver
Collector
7 Lpk Sense
6 Vcc
5
Comparator
Inverting input
BLOCK DIAGRAM
SWITCH
COLLECTOR
1
SWITCH
EMITTER
2
TIMING
CAPACITOR
3
GND
4
E
T2
T1
A
S
Q
R
C
Is
CT
OSCILLATOR
1.25Vref
COMP.
D
B
8
DRIVE
COLLECTOR
7
Ipeak
SENSE
6 Vcc
5 COMPARATOR
INVERTING INPUT
SOP-8
DIP-8
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R103-001,B
www.DataSheet4U.com
www.DataSheet4U.com



MC34063
UTCMC34063 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
PARAMETER
SYMBOL
Supply Voltage
Vcc
Comparator input voltage range
Vi(comp)
Switch collector voltage
Vc(sw)
Switch Emitter Voltage
Ve(sw)
Switch collector to emitter voltage
Vce(sw)
Driver collector Voltage
Vc(dr)
Switch current
Isw
Power Dissipation (Ta=25°C)
DIP
SOP
Pd
Thermal Characteristics
DIP
SOP
Operating junction temperature
Tj
Operating ambient temperature range
Ta
Storage temperature range
Tstg
VALUE
40
-0.3~+40
40
40
40
40
1.5
1250
625
100
160
150
0~70
-65~150
UNIT
V
V
V
V
V
V
A
mW
mW
°C/W
°C/W
°C
°C
°C
ELECTRICAL CHARACTERISTICS (Ta=25°C )
(Vcc=5.0V,Ta=0~70°C, unless otherwise specified)
PARAMETER
SYMBOL TEST CONDITIONS
Oscillator
Charging Current
Ichg Vcc=5 to 40V,Ta=25°C
Discharging Current
Idischg Vcc=5 to 40V,Ta=25°C
Oscillator Amplitude
Vosc
Ta=25°C
Discharge to Charge Current Ratio
K
V7=Vcc,Ta=25°C
Current limit Sense Voltage
Vsense
Ichg=Idischg
Ta=25°C
Output Switch
Saturation Voltage 1(note)
Vce(sat)1
Isw=1.0A
Vc(driver)=Vc(sw)
Saturation Voltage 2(note)
Vce(sat)2
Isw=1.0A
Vc(driver)=50mA
DC Current Gain (note)
Gi(DC)
Isw=1.0A
Vce=5.0V,Ta=25°C
Collector Off State Current (note)
C(off)
Vce=40.0V,Ta=25°C
Comparator
Threshold Voltage
Vth
Threshold Voltage Line Regulation Vth
Vcc=3~40V
Input Bias Current
Ibias
Vi=0V
Total Device
Supply Current
Vcc=5~40V
Ct=0.001
Icc V7=Vcc
Vc>Vth
Pin2=GND
MIN TYP. MAX UNIT
22 31 42 µA
140 190 260
µA
0.5 V
5.2 6.1 7.5
250 300 350 mV
0.95 1.3
0.45 0.7
50 180
0.01 100
1.21 1.24 1.29
2.0 5.0
50 400
V
V
µA
V
mV
nA
2.7 4.0 mA
NOTE: Output switch tests are performed under pulsed conditions to minimize power dissipation.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R103-001,B





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