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參數資料
| 型號： | MC33025P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩壓器 |
| 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： | PLASTIC, DIP-16 |
| 文件頁數： | 3/20頁 |
| 文件大小： | 516K |
| 代理商： | MC33025P |
MC34025 MC33025
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(VCC = 15 V, RT = 3.65 k
, 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
VIO
IIB
IIO
AVOL
GBW
–
–
15
mV
Input Bias Current
–
0.6
3.0
μ
A
μ
A
Input Offset Current
–
0.1
1.0
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 = 1.0 mA)
Slew Rate
60
95
–
dB
4.0
8.3
–
MHz
CMRR
75
95
–
dB
PSRR
85
110
–
dB
ISource
ISink
VOH
VOL
SR
0.5
1.0
3.0
3.6
–
–
mA
4.5
0
4.75
0.4
5.0
1.0
V
6.0
12
–
V/
μ
s
PWM COMPARATOR SECTION
Ramp Input Bias Current
IIB
–
–0.5
–5.0
μ
A
Duty Cycle, Maximum
Duty Cycle,
Minimum
DC(max)
DC(min)
Vth
tPLH(in/out)
80
–
90
–
–
0
%
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
1.1
1.25
1.4
V
Propagation Delay (Ramp Input to Output, TJ = +25
°
C)
SIFT–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)
–
60
100
ns
Ichg
Idischg
3.0
9.0
20
μ
A
1.0
4.0
–
mA
IIB
Vth
Vth
–
–
15
μ
A
V
Current Limit Comparator Threshold
Sh td
Shutdown Comparator Threshold
h ld
0.9
1 25
1.25
1.0
1 40
1.40
1.10
1 55
1.55
th
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
tPLH(in/out)
–
50
80
ns
VOL
VOH
–
–
13
12
0.25
1.2
13.5
13
0.4
2.2
–
–
V
VOL(UVLO)
IL
tr
tf
–
0.25
1.0
V
–
100
500
μ
A
–
30
60
ns
–
30
60
ns
Vth(on)
VH
8.8
9.2
9.6
V
0.4
0.8
1.2
V
Power Supply Current
Start–Up (VCC = 8.0 V)
Operating
ICC
–
–
0.5
25
1.2
35
mA
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.
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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