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ELECTRICAL CHARACTERISTICS (continued)
R
= 2370 W, C
T
T
that applies (Note 7), unless otherwise noted.)
OSCILLATOR
Frequency (Error Amp Output Low)
Total Variation (V
Frequency (Error Amp Output High)
Total Variation (V
Oscillator Control Input Voltage, Pin 3
ONE−SHOT
Drive Output Off−Time
T
= 25°C
A
Total Variation (V
DRIVE OUTPUTS
Output Voltage
Low State (I
Low State
(I
High State (I
High State
(I
Output Voltage with UVLO Activated (V
Output Voltage Rise Time (C
Output Voltage Fall Time (C
FAULT COMPARATOR
Input Threshold
Input Bias Current (V
Propagation Delay to Drive Outputs (100 mV Overdrive)
SOFT−START
Capacitor Charge Current (V
Capacitor Discharge Current (V
UNDERVOLTAGE LOCKOUT
Startup Threshold, V
Enable/UVLO Adjust Pin Open
Enable/UVLO Adjust Pin Connected to V
Minimum Operating Voltage After Turn−On, V
Enable/UVLO Adjust Pin Open
Enable/UVLO Adjust Pin Connected to V
Enable/UVLO Adjust Shutdown Threshold Voltage
Enable/UVLO Adjust Input Current (Pin 9 = 0 V)
TOTAL DEVICE
Power Supply Current (Enable/UVLO Adjust Pin Open)
Startup (V
CC
Operating (f
OSC
5. Maximum package power dissipation limits must be observed.
6. Adjust V
above the Startup Threshold voltage before setting to 12 V.
CC
7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
8. T
= 0°C for MC34067
low
= − 40°C for MC33067
T
= + 70°C for MC34067
high
= + 85°C for MC33067
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electronic components distributor
= 300 pF, C
= 1.0 nF. For typical values T
L
Characteristic
= 10 V to 18 V, T
= T
CC
A
Low
= 10 V to 18 V, T
= T
CC
A
Low
= 10 V to 18 V, T
= T
CC
A
Low
= 20 mA)
Sink
= 200 mA)
Sink
= 20 mA)
Source
= 200 mA)
Source
= 6.0 V, I
CC
= 1.0 nF)
L
= 1.0 nF)
L
= 0 V)
Pin 10
= 2.5 V)
Pin 11
= 2.5 V)
Pin 11
Increasing
CC
CC
CC
CC
= 13.5 V)
= 500 kHz) (Note 6)
MC34067, MC33067
(V
= 12 V [Note 6], R
CC
OSC
= 25°C, for min/max values T
A
Symbol
to T
)
f
High
OSC(low)
to T
)
f
High
OSC(high)
t
Blank
to T
)
High
V
V
= 1.0 mA)
V
Sink
OL(UVLO)
t
PLH(In/Out)
I
dischg
V
th(UVLO)
Decreasing
V
CC(min)
V
th(Enable)
I
in(Enable)
http://onsemi.com
4
= 18.2 k, R
= 2940 W, C
VFO
OSC
is the operating ambient temperature range
A
Min
Typ
490
525
1850
2050
V
−
2.5
in
235
250
225
−
−
0.8
OL
−
1.5
9.5
10.3
OH
9.0
9.7
−
0.8
t
−
20
r
t
−
15
f
V
0.93
1.0
th
I
−
− 2.0
IB
−
60
I
4.5
9.0
chg
3.0
8.0
14.8
16
8.0
9.0
8.0
9.0
7.6
8.6
6.0
7.0
−
− 0.2
I
CC
−
0.5
−
27
= 300 pF,
Max
Unit
kHz
550
kHz
2200
−
V
ns
270
280
V
1.2
2.0
−
−
1.2
V
50
ns
50
ns
1.07
V
− 10
mA
100
ns
14
mA
−
mA
V
17.2
10
V
10
9.6
−
V
− 1.0
mA
mA
0.8
35
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