Contolr Circuits. MC34063E Datasheet

MC34063E Circuits. Datasheet pdf. Equivalent


Part MC34063E
Description DC/DC Converter Contolr Circuits
Feature ( DataSheet : www.DataSheet4U.com ) MC34063A MC34063E DC/DC CONVERTER CONTROL CIRCUITS s s s s s s.
Manufacture ST Microelectronics
Datasheet
Download MC34063E Datasheet


( DataSheet : www.DataSheet4U.com ) MC34063A MC34063E DC/DC MC34063E Datasheet
DIP-8 SO-8 Features • Output switch current in excess of 1 MC34063EB Datasheet
DIP-8 SO-8 Features • Output switch current in excess of 1 MC34063EC Datasheet
Recommendation Recommendation Datasheet MC34063E Datasheet




MC34063E
( DataSheet : www.DataSheet4U.com )
MC34063A
MC34063E
DC/DC CONVERTER CONTROL CIRCUITS
s OUTPUT SWITCH CURRENT IN EXCESS
OF 1.5A
s 2% REFERENCE ACCURACY
s LOW QUIESCENT CURRENT: 2.5mA (TYP.)
s OPERATING FROM 3V TO 40V
s FREQUENCY OPERATION TO 100KHz
s ACTIVE CURRENT LIMITING
DESCRIPTION
The MC34063A/E series is a monolithic control
circuit delivering the main functions for DC/DC
voltage converting.
The device contains an internal temperature
compensated reference, comparator, duty cycle
controlled oscillator with an active current limit
circuit, driver and high current output switch.
Output voltage is adjustable through two external
resistors with a 2% reference accuracy.
Employing a minimum number of external
components the MC34063A/E devices series is
designed for Step-Down, Step-Up and
Voltage-Inverting applications.
BLOCK DIAGRAM
DIP-8
SO-8
March 2004
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MC34063E
MC34063A/E
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VCC
VIR
VSWC
VSWE
VCE
VDC
IDC
ISW
PTOT
TJ
TSTG
TOP
Power Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage (VSWC = 40V)
Switch Collector to Emitter Voltage
Driver Collector Voltage
Driver Collector Current
Switch Current
Power Dissipation at TA = 25°C
Operating Junction Temperature
for DIP-8
for SO-8
Storage Temperature Range
Operating Ambient Temperature Range for AC and EC SERIES
for AB SERIES
for EB SERIES
50
-0.3 to 40
40
40
40
40
100
1.5
1.25
0.625
150
-40 to 150
0 to 70
-40 to 85
-40 to 125
V
V
V
V
V
V
mA
A
W
°C
°C
°C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is
not implied.
THERMAL DATA
Symbol
Parameter
Rthj-amb Thermal Resistance Junction-ambient (*)
Rthj-case Thermal Resistance Junction-case
(*) This value depends from thermal design of PCB on which the device is mounted.
DIP-8
100
42
SO-8
160
20
Unit
°C/W
°C/W
CONNECTION DIAGRAM (top view)
PIN DESCRIPTION
Pin N°
1
2
3
4
5
6
7
8
2/16
Symbol
SWC
SWE
TC
GND
CII
VCC
IPK
DRC
Name and Function
Switch Collector
Switch Emitter
Timing Capacitor
Ground
Comparator Inverting Input
Voltage Supply
IPK Sense
Voltage Driver Collector







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