MC34025 ON Semiconductor, MC34025 Datasheet - Page 3

• Manufacturer Part Number: MC34025
• Description: (MC33025 / MC34025) High Speed Single-Ended PWM Controller
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
T
ERROR AMPLIFIER SECTION
PWM COMPARATOR SECTION
SOFT−START SECTION
CURRENT SENSE SECTION
OUTPUT SECTION
UNDERVOLTAGE LOCKOUT SECTION
TOTAL DEVICE
3. Maximum package power dissipation limits must be observed.
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Input Offset Voltage
Input Bias Current
Input Offset Current
Open−Loop Voltage Gain (V
Gain Bandwidth Product (T
Common Mode Rejection Ratio (V
Power Supply Rejection Ratio (V
Output Current,
Output Voltage Swing,
Slew Rate
Ramp Input Bias Current
Duty Cycle of Each Output,
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
Propagation Delay (Ramp Input to Output, T
Charge Current (V
Discharge Current (V
Input Bias Current (Pin 9(12) = 0 V to 4.0 V)
Current Limit Comparator Threshold
Shutdown Comparator Threshold
Propagation Delay (Current Limit/Shutdown to Output, T
Output Voltage
Output Voltage with UVLO Activated (V
Output Leakage Current (V
Output Voltage Rise Time (C
Output Voltage Fall Time (C
Startup Threshold (V
UVLO Hysteresis Voltage (V
Power Supply Current
A
is the operating ambient temperature range that applies [Note 4], unless otherwise noted.)
T
T
Low State
High State
low
low
= 0°C for MC34025
= − 40°C for MC33025
Soft−Start
CC
Soft−Start
Increasing)
Characteristic
J
= 0.5 V)
C
L
O
CC
= + 25°C)
L
= 20 V)
= 1.0 nF, T
= 1.5 V)
= 1.0 V to 4.0 V)
= 1.0 nF, T
Decreasing After Turn−On)
CC
CM
= 10 V to 30 V)
T
T
= 1.5 V to 5.5 V)
high
high
CC
J
J
(V
= + 25°C)
= +70°C for MC34025
= +105°C for MC33025
= 6.0 V, I
= + 25°C)
High State (I
CC
J
Low State (I
= + 25°C)
= 15 V, R
Startup (V
Source (V
(I
Sink
Sink (V
(I
Source
MC34025, MC33025
(I
Source
(I
Sink
O
= 0.5 mA)
T
J
Sink
http://onsemi.com
O
= + 25°C)
= 3.65 kW, C
= − 0.5 mA)
CC
= 200 mA)
= 200 mA)
O
O
= 1.0 mA)
Maximum
Operating
Minimum
= 20 mA)
= 20 mA)
= 4.0 V)
= 1.0 V)
= 8.0 V)
3
T
= 1.0 nF, for typical values T
t
t
V
PLH(in/out)
PLH(in/out)
Symbol
DC
DC
OL(UVLO)
CMRR
PSRR
I
V
I
GBW
Source
A
dischg
I
V
V
V
V
V
I
SR
V
V
V
th(on)
I
Sink
V
I
I
I
I
VOL
chg
CC
(max)
I
IB
IO
OH
IB
IB
OH
t
t
OL
(min)
OL
IO
L
th
th
th
r
f
H
1.25
Min
4.0
0.5
1.0
4.5
6.0
1.1
3.0
1.0
0.9
8.8
0.4
60
75
85
40
13
12
−
−
−
0
−
−
−
−
−
−
−
−
−
−
−
−
−
A
= + 25°C, for min/max values
4.75
−0.5
1.25
1.40
0.25
13.5
0.25
Typ
110
100
0.6
0.1
8.3
3.0
3.6
0.4
9.0
4.0
1.0
1.2
9.2
0.8
0.5
95
95
12
45
60
50
13
30
30
25
−
−
−
Max
−5.0
1.10
1.55
100
500
3.0
1.0
5.0
1.0
1.4
0.4
2.2
1.0
9.6
1.2
1.2
15
20
15
80
60
60
35
−
−
−
−
−
−
−
−
0
−
−
−
MHz
Unit
V/ms
mV
mA
mA
mA
mA
mA
dB
dB
dB
mA
mA
mA
mA
ns
ns
ns
ns
%
V
V
V
V
V
V
V