MC34023 MC33023
ELECTRICAL CHARACTERISTICS (VCC = 15 V, RT = 3.65 kΩ, 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
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
PWM COMPARATOR SECTION
Ramp Input Bias Current
Duty Cycle, Maximum
Duty Cycle, Minimum
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
Propagation Delay (Ramp Input to Output, TJ = + 25°C)
SOFT–START SECTION
Charge Current (VSoft–Start = 0.5 V)
Discharge Current (VSoft–Start = 1.5 V)
CURRENT SENSE SECTION
Input Bias Current (Pin 9(12) = 0 V to 4.0 V)
Current Limit Comparator Input Offset Voltage (Pin 11(14) = 1.1 V)
Current Limit Reference Input Common Mode Range (Pin 11(14))
Shutdown Comparator Threshold
Propagation Delay (Current Limit/Shutdown to Output, TJ = + 25°C)
OUTPUT SECTION
Output Voltage
Low State (ISink = 20 mA)
(ISink = 200 mA)
High State (ISource = 20 mA)
(ISource = 200 mA)
Output Voltage with UVLO Activated (VCC = 6.0 V, ISink = 0.5 mA)
Output Leakage Current (VC = 20 V)
Output Voltage Rise Time (CL = 1.0 nF, TJ = + 25°C)
Output Voltage Fall Time (CL = 1.0 nF, TJ = + 25°C)
UNDERVOLTAGE LOCKOUT SECTION
Start–Up Threshold (VCC Increasing)
UVLO Hysteresis Voltage (VCC Decreasing After Turn–On)
TOTAL DEVICE
Power Supply Current
Start–Up (VCC = 8.0 V)
Operating
VIO
IIB
IIO
AVOL
GBW
CMRR
PSRR
ISource
ISink
VOH
VOL
SR
–
–
15
mV
–
0.6
3.0
µA
–
0.1
1.0
µA
60
95
–
dB
4.0
8.3
–
MHz
75
95
–
dB
85
110
–
dB
0.5
3.0
–
mA
1.0
3.6
–
4.5
4.75
5.0
V
0
0.4
1.0
6.0
12
–
V/µs
IIB
–
– 0.5 – 5.0
µA
DC(max)
80
90
–
%
DC(min)
–
–
0
Vth
1.1
1.25
1.4
V
tPLH(in/out)
–
60
100
ns
Ichg
Idischg
3.0
9.0
20
µA
1.0
4.0
–
mA
IIB
–
–
15
µA
VIO
–
–
45
mV
VCMR
1.0
–
1.25
V
Vth
1.25
1.40
1.55
V
tPLH(in/out)
–
50
80
ns
VOL
VOH
V
–
0.25
0.4
–
1.2
2.2
13
13.5
–
12
13
–
VOL(UVLO)
–
IL
–
tr
–
tf
–
0.25
1.0
V
100
500
µA
30
60
ns
30
60
ns
Vth(on)
8.8
9.2
9.6
V
VH
0.4
0.8
1.2
V
ICC
mA
–
0.5
1.2
–
20
30
NOTES: 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
Tlow = – 40°C for MC33023
Thigh = +70°C for MC34023
Thigh = +105°C for MC33023
MOTOROLA ANALOG IC DEVICE DATA
3