參數資料
型號: MC34023P
廠商: MOTOROLA INC
元件分類: 穩(wěn)壓器
英文描述: High Speed Single-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: 4/19頁
文件大?。?/td> 470K
代理商: MC34023P
MC34023 MC33023
4
MOTOROLA ANALOG IC DEVICE DATA
1.0 MHz
400 kHz
50 kHz
Gain
Phase
2
4
6
8
9
0
– 25
0
25
50
75
10 k
AV
,
fo
Figure 1. Timing Resistor versus
Oscillator Frequency
,
RT
104
105
106
107
fosc, OSCILLATOR FREQUENCY (Hz)
Figure 2. Oscillator Frequency versus Temperature
1200
TA, AMBIENT TEMPERATURE (
°
C)
Figure 3. Error Amp Open Loop Gain and
Phase versus Frequency
10
100
1.0 k
10 k
100 k
1.0 M
10 M
f, FREQUENCY (Hz)
T
Figure 4. PWM Comparator Zero Duty Cycle
Threshold Voltage versus Temperature
– 55
– 25
0
25
50
75
100
TA, AMBIENT TEMPERATURE (
°
C)
Figure 5. Error Amp Small Signal
Transient Response
Figure 6. Error Amp Large Signal
Transient Response
125
0
45
90
135
°
C
θ
0.1
μ
s/DIV
0.1
μ
s/DIV
VCC = 15 V
TA = +25
°
C
CT =
1. 100 nF
2. 47 nF
3. 22 nF
4. 10 nF
5. 4.7 nF
6. 2.2 nF
7. 1.0 nF
8. 470 pF
9. 220 pF
100
1000
100 k
1
3
5
7
100
125
VCC = 15 V
Pin 7(9) = 0 V
VCC = 15 V
RT = 3.6 k
CT = 1.0 nF
RT = 1.2 k
CT = 1.0 nF
RT = 36 k
CT = 1.0 nF
1000
800
600
400
200
1.30
1.28
1.26
1.24
1.22
1.20
1.0 k
470
120
100
80
60
40
20
0
– 20
2.55 V
2.5 V
2.45 V
3.0 V
2.5 V
2.0 V
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