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MC34060A Datasheet(PDF) 4 Page - ON Semiconductor

Part No. MC34060A
Description  Fixed Frequency, PWM, Voltage Mode Single Ended Controllers
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC34060A Datasheet(HTML) 4 Page - ON Semiconductor

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MC34060A, MC33060A
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (continued) (VCC = 15 V, CT = 0.01 µF, RT = 12 kΩ, unless otherwise noted.
For typical values TA = 25°C, for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
PWM COMPARATOR SECTION (Test circuit Figure 11)
Input Threshold Voltage
(Zero Duty Cycle)
VTH
3.5
4.5
V
Input Sink Current
(V[Pin 3] = 0.7 V)
II
0.3
0.7
mA
DEAD–TIME CONTROL SECTION (Test circuit Figure 11)
Input Bias Current (Pin 4)
(Vin = 0 V to 5.25 V)
IIB(DT)
–1.0
–10
µA
Maximum Output Duty Cycle
(Vin = 0 V, CT = 0.01 µF, RT = 12 kΩ)
(Vin = 0 V, CT = 0.001 µF, RT = 47 kΩ)
DCmax
90
96
92
100
%
Input Threshold Voltage (Pin 4)
(Zero Duty Cycle)
(Maximum Duty Cycle)
VTH
0
2.8
3.3
V
OSCILLATOR SECTION
Frequency
(CT = 0.01 µF, RT = 12 kΩ, TA = 25°C)
TA = Tlow to Thigh – MC34060A
TA = Tlow to Thigh – MC33060A
(CT = 0.001 µF, RT = 47 kΩ)
fosc
9.7
9.5
9.0
10.5
25
11.3
11.5
11.5
kHz
Standard Deviation of Frequency*
(CT = 0.001 µF, RT = 47 kΩ)
σfosc
1.5
%
Frequency Change with Voltage
(VCC = 7.0 V to 40 V)
∆fosc(∆V)
0.5
2.0
%
Frequency Change with Temperature
(
∆TA =Tlow to Thigh)
(CT = 0.01 µF, RT = 12 kΩ)
∆fosc(∆T)
4.0
%
UNDERVOLTAGE LOCKOUT SECTION
Turn–On Threshold (VCC increasing, Iref = 1.0 mA)
Vth
4.0
4.7
5.5
V
Hysteresis
VH
50
150
300
mV
TOTAL DEVICE
Standby Supply Current
(Pin 6 at Vref, all other inputs and outputs open)
(VCC = 15 V)
(VCC = 40 V)
ICC
5.5
7.0
10
15
mA
Average Supply Current
(V[Pin 4] = 2.0 V, CT = 0.001 µF, RT = 47 kΩ). See Figure 11.
IS
7.0
mA
*Standard deviation is a measure of the statistical distribution about the mean as derived from the formula;
σ =
N
Σ (xn –x)2
n – 1
N–1


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