MC34063A
n
ELECTRICAL CHARACTERISTICS
(VCC= 5V, T
A
=25°C, unless otherwise
specified.)
PARAMETER
Oscillator
Charging Current
Discharge Current
Voltage Swing
Discharge to Charge Current
Ratio
Current Limit Sense Voltage
Output Switch
Saturation Voltage,
Darlington Connection
Saturation Voltage
DC Current Gain
Collector Off-State Current
Comparator
Threshold Voltage
Threshold Voltage
Threshold Voltage Line
Regulation
Input Bias Current
T
A
=25°C
0°C≤T
A
≤70°C
3.0V≤VCC≤30V
V
IN
=0V
V
IPK(SENSE)
=VCC
V
PIN 5
>V
FB
5.0V≤VCC≤30V
C
T
=0.001µF, PIN 2=GND
Remaining pins open
REG
LINE
I
IB
V
FB
1.227
1.21
0.1
0.4
1.25
1.273
V
1.29
0.3
1
mV/V
µA
I
SW
=1.0A;
V
C(DRIVER)
=V
C(SWITCH)
I
SW
=1.0A; I
C(DRIVER)
=50mA
(Forced
β≅20)
I
SW
=1.0A; V
CE
=5.0V
V
CE
=30V
V
CE(SAT)
1.0
1.3
V
5.0V≤VCC≤30V
5.0V≤VCC≤30V
PIN 3
V
IPK(SENSE)
=VCC
I
CHG
I
DISCHG
V
OSC
I
DISCHG/
I
CHG
10
100
25
150
0.6
6.0
40
200
µA
µA
V
TEST CONDITIONS
SYMBOL
MIN.
TYP.
MAX. UNIT
I
CHG
=I
DISCHG
V
IPK(SENSE)
250
300
350
mV
V
CE (SAT)
h
FE
I
C(OFF)
35
0.4
120
10
0.7
V
nA
Supply current
I
CC
1.6
3
mA
3
AIC [ ANALOG INTERGRATIONS CORPORATION ]
