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| 型號(hào)： | MC33065P-L |
| 廠(chǎng)商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS |
| 中文描述： | 1 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁(yè)數(shù)： | 10/15頁(yè) |
| 文件大小： | 494K |
| 代理商： | MC33065P-L |
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MC34065 MC33065
10
MOTOROLA ANALOG IC DEVICE DATA
Figure 17. External Clock Synchronization
Figure 18. External Duty Cycle Clamp and
Multi–Unit Synchronization
–
+
R
220 pF
RT
R
R
15
1
3
2
4
5
CT
External
Sync
Input
Bias
Osc
20 k
EA1
0.5 V
2R
The external diode clamp is required if the negative Sync current
is greater than –5.0 mA.
–
+
–
+
6
5
2
C
RB
MC1455
R
S
Q
3
7
4
8
RA
Vref
15
1
3
2
4
5
To additional MC34065’s
2R
R
0.5 V
Osc
Bias
R
R
5.0 k
5.0 k
5.0 k
1
EA1
Dmax Drive Output 1 =
Dmax Drive Output 2 =
20 k
f
1.08
RA
RBC
RB
RA
RB
RA
RA
RB
+
–
Figure 19. Adjustable Reduction of Clamp Level
Figure 20. Soft–Start Circuit
–
+
+
–
–
+
Vref
15
1
3
2
4
5
R1
R2
EA1
R
R
Bias
5.0 Vref
Osc
S
R
Q
+
_
20 k
VCC
Vin
Q1
RS
6
7
16
VClamp
1.0 mA
2R
R
0.5 V
PWM
Latch 1
Where: 0
≤
VClamp
≤
0.5 V
–
+
–
+
Bias
Osc
1.0 mA
1.0 M
C
15
1
3
2
4
EA1
R
0.5 V
20 k
R
R
Vref
tSoft–Start
≈
2100 C in
μ
F
5
2R
17 V
VClamp
1.67
R2
R1
1
0.33 x 10–3
R1R2
R1
R2
Ipk(max)
VClamp
RS
+
_
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| MC33065DW-H | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS |
| MC33065DW-L | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS |
| MC33065P | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER |
| MC33065P-H | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS |
| MC33065P-L | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS |
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