參數(shù)資料
型號： MC33025PG
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： High Speed Double−Ended PWM Controller
中文描述： 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDIP16
封裝： LEAD FREE, PLASTIC, DIP-16
文件頁數(shù)： 3/20頁
文件大小： 482K
代理商： MC33025PG
MC34025, MC33025
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(V
CC
= 15 V, R
T
= 3.65 k , C
T
= 1.0 nF, for typical values T
A
= +25
°
C, for min/max values
T
A
is the operating ambient temperature range that applies [Note 4], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION
Input Offset Voltage
V
IO
I
IB
I
IO
A
VOL
GBW
15
mV
Input Bias Current
0.6
3.0
A
Input Offset Current
0.1
1.0
A
OpenLoop Voltage Gain (V
O
= 1.0 V to 4.0 V)
Gain Bandwidth Product (T
J
= +25
°
C)
Common Mode Rejection Ratio (V
CM
= 1.5 V to 5.5 V)
Power Supply Rejection Ratio (V
CC
= 10 V to 30 V)
Output Current,
60
95
dB
4.0
8.3
MHz
CMRR
75
95
dB
PSRR
85
110
dB
Source (V
O
= 4.0 V)
Sink (V
O
= 1.0 V)
I
Source
I
Sink
0.5
1.0
3.0
3.6
mA
Output Voltage Swing,
High State (I
= 0.5 mA)
Low State (I
O
= 1.0 mA)
V
OH
V
OL
4.5
0
4.75
0.4
5.0
1.0
V
Slew Rate
SR
6.0
12
V/ s
PWM COMPARATOR SECTION
Ramp Input Bias Current
I
IB
0.5
5.0
A
Duty Cycle of Each Output,
Maximum
Minimum
DC
(max)
DC
(min)
40
45
0
%
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
V
th
1.1
1.25
1.4
V
Propagation Delay (Ramp Input to Output, T
J
= +25
°
C)
t
PLH(in/out)
60
100
ns
SOFTSTART SECTION
Charge Current (V
SoftStart
= 0.5 V)
Discharge Current (V
SoftStart
= 1.5 V)
I
chg
I
dischg
3.0
9.0
20
A
1.0
4.0
mA
CURRENT SENSE SECTION
Input Bias Current (Pin 9(12) = 0 V to 4.0 V)
I
IB
V
th
V
th
15
A
Current Limit Comparator Threshold
Shutdown Comparator Threshold
0.9
1.25
1.0
1.40
1.10
1.55
V
Propagation Delay (Current Limit/Shutdown to Output, T
J
= +25
°
C)
t
PLH(in/out)
50
80
ns
OUTPUT SECTION
Output Voltage
Low State
(I
Sink
= 20 mA)
(I
Sink
= 200 mA)
(I
Source
= 20 mA)
(I
Source
= 200 mA)
High State
V
OL
V
OH
13
12
0.25
1.2
13.5
13
0.4
2.2
V
Output Voltage with UVLO Activated (V
CC
= 6.0 V, I
Sink
= 0.5 mA)
Output Leakage Current (V
C
= 20 V)
Output Voltage Rise Time (C
L
= 1.0 nF, T
J
= +25
°
C)
Output Voltage Fall Time (C
L
= 1.0 nF, T
J
= +25
°
C)
V
OL(UVLO)
I
L
t
r
t
f
0.25
1.0
V
100
500
A
30
60
ns
30
60
ns
UNDERVOLTAGE LOCKOUT SECTION
Startup Threshold (V
CC
Increasing)
UVLO Hysteresis Voltage (V
CC
Decreasing After TurnOn)
V
th(on)
V
H
8.8
9.2
9.6
V
0.4
0.8
1.2
V
TOTAL DEVICE
Power Supply Current
Startup (V
CC
= 8.0 V)
Operating
I
CC
0.5
25
1.2
35
mA
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.
T
low
= 0
°
C for MC34025
T
high
= +70
°
C for MC34025
T
low
= 40
°
C for MC33025
T
high
= +105
°
C for MC33025
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