參數(shù)資料
型號： MC33065-H
廠商： ON SEMICONDUCTOR
英文描述： High Performance Dual Channel Current Mode Controllers
中文描述： 高性能雙通道電流模式控制器
文件頁數(shù)： 12/18頁
文件大小： 583K
代理商： MC33065-H
MC34065
H, L
http://onsemi.com
12
Figure 17. External Clock Synchronization
Figure 18. External Duty Cycle Clamp and
Multi
Unit Synchronization
+
R
220p
F
R
T
R
R
1
5
1
3
2
4
5
C
T
External
Sync
Input
Bias
Osc
.
20k
EA1
1.0V
2R
The external diode clamp is required if the negative Sync current
is greater than
5.0 mA.
+
+
+
6
5
2
C
R
B
MC1455
R
S
Q
3
7
4
8
R
A
V
ref
15
1
3
2
4
5
To additional MC34065s
2R
R
1.0V
Osc.
Bias
R
R
5.0k
5.0k
5.0k
1
EA1
f =
1.08
(R
A
+ R
B
)C
D
max
Drive Output 1 =
R
B
R
A
+ R
B
D
max
Drive Output 2 =
R
A
R
A
+ R
B
20k
PIN FUNCTION DESCRIPTION
Pin
Function
Description
1
Sync Input
A narrow rectangular waveform applied to this input will synchronize the oscillator. A dc voltage
within the range of 2.4 V to 5.5 V will inhibit the oscillator.
2
C
T
Timing capacitor C
T
connects from this pin to ground setting the free
running oscillator frequency
range.
3
R
T
Resistor R
T
connects from this pin to ground precisely setting the charge current for C
T
. R
T
must
be between 4.0 k and 16 k.
4
Voltage Feedback 1
This pin is the inverting input of Error Amplifier 1. It is normally connected to the switching power
supply output through a resistor divider.
5
Compensation 1
This pin is the output of Error Amplifier 1 and is made available for loop compensation.
6
Current Sense 1
A voltage proportional to the inductor current is connected to this input. PWM 1 uses this
information to terminate conduction of output switch Q1.
7
Drive Output 1
This pin directly drives the gate of a power MOSFET Q1. Peak currents up to 400 mA are sourced
and sunk by this pin.
8
Gnd
This pin is the control circuitry ground return and is connected back to the source ground.
9
Drive Gnd
This pin is a separate power ground return that is connected back to the power source. It is used
to reduce the effects of switching transient noise on the control circuitry.
10
Drive Output 2
This pin directly drives the gate of a power MOSFET Q2. Peak currents up to 400 mA are sourced
and sunk by this pin.
11
Current Sense 2
A voltage proportional to inductor current is connected to this input. PWM 2 uses this information
to terminate conduction of output switch Q2.
12
Compensation 2
This pin is the output of Error Amplifier 2 and is made available for loop compensation.
13
Voltage Feedback 2
This pin is the inverting input of Error Amplifier 2. It is normally connected to the switching power
supply output through a resistor divider.
14
Drive Output 2 Enable
A logic low at this input disables Drive Output 2.
15
V
ref
This is the 5.0 V reference output. It can provide bias for any additional system circuitry.
16
V
CC
This pin is the positive supply of the control IC. The minimum operating voltage range after startup
is 11 V to 15.5 V for the
H suffix, 8.2 V to 9.5 V for the
L suffix.
相關(guān)PDF資料
PDF描述
MC33065-L High Performance Dual Channel Current Mode Controllers
MC33067DWG High Performance Resonant Mode Controllers
MC33067DWR2 High Performance Resonant Mode Controllers
MC33067DWR2G High Performance Resonant Mode Controllers
MC33067PG High Performance Resonant Mode Controllers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC33065-L 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual Channel Current Mode Controllers
MC33065P 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER
MC33065P-H 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual Channel Current Mode Controllers
MC33065P-L 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual Channel Current Mode Controllers
MC33066 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:High Performance Resonant Mode Controllers
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價(jià)

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*