MC34060A Datasheet, PDF (4/16 Pages) ON Semiconductor – Fixed Frequency, PWM, Voltage Mode Single Ended Controllers

MC34060A, MC33060A
ELECTRICAL CHARACTERISTICS (continued) (V_CC = 15 V, C_T = 0.01 mF, R_T = 12 kW, unless otherwise noted.
For typical values T_A = 25°C, for min/max values T_A 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)
V_TH
−
3.5
4.5
V
Input Sink Current
(V_{[Pin 3]} = 0.7 V)
I_I
0.3
0.7
−
mA
DEAD−TIME CONTROL SECTION (Test circuit Figure 11)
Input Bias Current (Pin 4)
(V_in = 0 V to 5.25 V)
Maximum Output Duty Cycle
(V_in = 0 V, C_T = 0.01 mF, R_T = 12 kW)
(V_in = 0 V, C_T = 0.001 mF, R_T = 47 kW)
Input Threshold Voltage (Pin 4)
(Zero Duty Cycle)
(Maximum Duty Cycle)
I_IB(DT)
DC_max
V_TH
−
−1.0
−10
mA
%
90
96
100
−
92
−
V
−
2.8
3.3
0
−
−
OSCILLATOR SECTION
Frequency
(C_T = 0.01 mF, R_T = 12 kW, T_A = 25°C)
T_A = T_low to T_high − MC34060A
T_A = T_low to T_high − MC33060A
(C_T = 0.001 mF, R_T = 47 kW)
Standard Deviation of Frequency*
(C_T = 0.001 mF, R_T = 47 kW)
Frequency Change with Voltage
(V_CC = 7.0 V to 40 V)
Frequency Change with Temperature
(DT_A =T_low to T_high)
(C_T = 0.01 mF, R_T = 12 kW)
UNDERVOLTAGE LOCKOUT SECTION
Turn−On Threshold (V_CC increasing, I_ref = 1.0 mA)
Hysteresis
TOTAL DEVICE
Standby Supply Current
(Pin 6 at V_ref, all other inputs and outputs open)
(V_CC = 15 V)
(V_CC = 40 V)
Average Supply Current
(V_{[Pin 4]} = 2.0 V, C_T = 0.001 mF, R_T = 47 kW). See Figure 11.
f_osc
9.7
9.5
9.0
−
σf_osc
−
Df_osc(DV)
−
Df_osc(DT)
−
−
V_th
4.0
V_H
50
I_CC
−
−
I_S
−
kHz
10.5
11.3
−
11.5
−
11.5
25
−
1.5
−
%
0.5
2.0
%
%
4.0
−
−
−
4.7
5.5
V
150
300
mV
mA
5.5
10
7.0
15
7.0
−
mA
*Standard deviation is a measure of the statistical distribution about the mean as derived from the formula; σ =
N
Σ (x_n −x)²
n−1
N −1
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