MC34023, MC33023
ELECTRICAL CHARACTERISTICS (VCC = 15 V, RT = 3.65 kW, CT = 1.0 nF, for typical values TA = + 25°C, for min/max values TA
is the operating ambient temperature range that applies [Note 2], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
REFERENCE SECTION
Reference Output Voltage (IO = 1.0 mA, TJ = + 25°C)
Line Regulation (VCC = 10 V to 30 V)
Load Regulation (IO = 1.0 mA to 10 mA)
Temperature Stability
Total Output Variation over Line, Load, and Temperature
Output Noise Voltage (f = 10 Hz to 10 kHz, TJ = + 25°C)
Long Term Stability (TA = +125°C for 1000 Hours)
Output Short Circuit Current
OSCILLATOR SECTION
Vref
Regline
Regload
TS
Vref
Vn
S
ISC
5.05
−
−
−
4.95
−
−
− 30
5.1
2.0
2.0
0.2
−
50
5.0
− 65
5.15
15
15
−
5.25
−
−
−100
V
mV
mV
mV/°C
V
mV
mV
mA
Frequency
TJ = + 25°C
Line (VCC = 10 V to 30 V) and Temperature (TA = Tlow to Thigh)
Frequency Change with Voltage (VCC = 10 V to 30 V)
Frequency Change with Temperature (TA = Tlow to Thigh)
Sawtooth Peak Voltage
Sawtooth Valley Voltage
Clock Output Voltage
High State
Low State
ERROR AMPLIFIER SECTION
Input Offset Voltage
Input Bias Current
Input Offset Current
Open−Loop Voltage Gain (VO = 1.0 V to 4.0 V)
Gain Bandwidth Product (TJ = + 25°C)
Common Mode Rejection Ratio (VCM = 1.5 V to 5.5 V)
Power Supply Rejection Ratio (VCC = 10 V to 30 V)
Output Current, Source (VO = 4.0 V)
Output Current, Sink (VO = 1.0 V)
Output Voltage Swing, High State (IO = − 0.5 mA)
Output Voltage Swing, Low State (IO = 1 mA)
Slew Rate
fosc
380
370
Dfosc/DV
−
Dfosc/DT
−
VOSC(P)
2.6
VOSC(V)
0.7
VOH
3.9
VOL
−
VIO
−
IIB
−
IIO
−
AVOL
60
GBW
4.0
CMRR
75
PSRR
85
ISource
0.5
ISink
1.0
VOH
4.5
VOL
0
SR
6.0
400
400
0.2
2.0
2.8
1.0
4.5
2.3
−
0.6
0.1
95
8.3
95
110
3.0
3.6
4.75
0.4
12
kHz
420
430
1.0
%
−
%
3.0
V
1.25
V
V
−
2.9
15
mV
3.0
mA
1.0
mA
−
dB
−
MHz
−
dB
−
dB
−
mA
−
5.0
V
1.0
−
V/ms
PWM COMPARATOR SECTION
Ramp Input Bias Current
IIB
−
−0.5 −5.0
mA
Duty Cycle, Maximum
Duty Cycle, Minimum
DC(max)
80
90
−
%
DC(min)
−
−
0
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
Vth
1.1
1.25
1.4
V
Propagation Delay (Ramp Input to Output, TJ = + 25°C)
tPLH(in/out)
−
60
100
ns
SOFT−START SECTION
Charge Current (VSoft−Start = 0.5 V)
Ichg
3.0
9.0
20
mA
Discharge Current (VSoft−Start = 1.5 V)
Idischg
1.0
4.0
−
mA
1. Maximum package power dissipation limits must be observed.
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Tlow = 0°C for MC34023
= −40°C for MC33023
Thigh = +70°C for MC34023
= +105°C for MC33023
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