MC34063A / MC33063A — SMPS Controller
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device
reliability. The absolute maximum ratings are stress ratings only.
Symbol
V
CC
V
I(COMP)
V
C(SW)
V
E(SW)
V
CE(SW)
V
C(DR)
I
SW
T
STG
P
D
Parameter
Supply Voltage
Comparator Input Voltage Range
Switch Collector Voltage
Switch Emitter Voltage
Switch Collector to Emitter Voltage
Driver Collector Voltage
Switch Current
Storage Temperature Range
Power Dissipation
SOP
DIP
Min.
-0.3
Max.
40
+40
40
40
40
40
1.5
Unit
V
V
V
V
V
V
A
°C
W
-65
+150
0.8
1
Electrical Characteristics
V
CC
= 5.0V, T
A
= 0°C to +70°C for MC34063, T
A
= -40°C to +85°C for MC33063, unless otherwise specified.
Symbol
Oscillator
I
CHG
I
DISCHG
V
(OSC)
K
V
SENSE(CL)
Parameter
Conditions
Min.
Typ.
Max.
Units
Charging Current
Discharging Current
Oscillator Amplitude
Discharge-to-Charge Current Ratio
Current Limit Sense Voltage
(1)
(1)
V
CC
=5 to 40V, T
A
=25°C
V
CC
=5 to 40V, T
A
=25°C
T
A
=25°C
V
7
=V
CC
, T
A
=25°C
I
CHG
=I
DISCHG
, T
A
=25°C
22
140
5.2
250
31
190
0.5
6.1
300
42
260
7.5
350
µA
µA
V
mV
Output Switch
V
CE(SAT)1
V
CE(SAT)2
G
I(DC)
I
C(OFF)
Saturation Voltage 1
Saturation Voltage 2
DC Current Gain
(1)
(1)
I
SW
=1.0A, V
C(driver)
=V
C(SW)
I
SW
=1.0A, V
C(driver)
=50mA
I
SW
=1.0A,
V
CE
=5.0V, T
A
=25°C
V
CE
=40V, T
A
=25°C
50
0.95
0.45
180
0.01
1.30
0.70
V
V
Collector Off-State Current
100.00
µA
Comparator
V
TH
ΔV
TH
I
BIAS
Threshold Voltage
Threshold Voltage Line Regulation
Input Bias Current
V
CC
=3 to 40V
V
I
=0V
1.21
1.24
2
50
1.29
5
400
V
mV
nA
Total Device
I
CC
Supply Current
MC34063
MC33063
V
CC
=5 to 40V, C
T
=0.001µF,
V
7
=V
CC
, V
5
>V
TH
, pin 2=GND
4
5
mA
Note:
1. Output switch tests are performed under pulsed conditions to minimize power dissipation.
© 2001 Fairchild Semiconductor Corporation
MC34063A/MC33063A • Rev. 1.0.3
www.fairchildsemi.com
3
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
