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DC-DC Converter Control Circuits
MC34063A
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VALUE
UNIT
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 Tamb=25℃(for Plastic Package )
(for SOIC Package )
Operating Ambient Temperature Range
Storage Temperature Range
Absolute Maximum Rating are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
THERMAL DATA
PARAMETER
UNIT
Thermal Resistance Junction-ambient (
*)
Max
(
*) This Value depends from thermal design of PCB on which the device is mounted.
CONNECTION DIAGRAM (top view)
PIN CONNECTIONS
PIN NO
SYMBOL
NAME AND FUNCTION
SWC
Switch Collector
SWE
Switch Emitter
TC
Timing Capactor
GND
Ground
CII
Comparator lnverting lnput
Vcc
Voltage Supply
SC11080
IPK
IPK Sense
DRC
Voltage Driver Collector
HTC
SO-8
160
℃/w
2
5
6
7
8
1
2
3
4
SYMBOL
Rthi-amb
DIP-8
100
Ptot
Top
Tstg
SYMBOL
VCE
Vdc
Idc
Isw
Vcc
Vir
VSWC
VSWE
℃
1.25
W
0.625
100
㎃
-40 to 150
℃
0 to 70
℃
℃
1.5
A
40
V
40
V
50
V
-0.3 to 40
V
40
V
40
V
1
4
8
5
SWC
GND
SWE
TC
CII
VCC
IPK
DRC
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