欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: MC34065P-H
廠商: MOTOROLA INC
元件分類: 穩壓器
英文描述: Enhanced Product Single Voltage Detector 5-SC70 -40 to 125
中文描述: 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16
封裝: PLASTIC, DIP-16
文件頁數: 8/16頁
文件大?。?/td> 419K
代理商: MC34065P-H
MC34065–H, L MC33065–H, L
8
MOTOROLA ANALOG IC DEVICE DATA
Figure 16. Timing Diagram
Sync Input
Capacitor CT
Latch 1
“Set” Input
Compensation 1
Current Sense 1
Latch 1
“Reset” Input
Drive Output 1
Drive Output
2
Enable
Latch 2
“Set” Input
Compensation 2
Current Sense 2
Drive Output 2
Latch 2
“Reset” Input
The outputs do not contain internal current limiting,
therefore an external series resistor may be required to
prevent the peak output current from exceeding the
±
400 mA
maximum rating. The sink saturation (VOL) is less than 0.75 V
at 50 mA.
A separate Drive Ground pin is provided and, with proper
implementation, will significantly reduce the level of switching
transient noise imposed on the control circuitry. This
becomes particularly useful when reducing the Ipk(max) clamp
level. Figure 23 shows the proper ground connections
required for current sensing power MOSFET applications.
Drive Output 2 Enable Pin
This input is used to enable Drive Output 2. Drive Output 1
can be used to control circuitry that must run continuously
such as volatile memory and the system clock, or a remote
controlled receiver, while Drive Output 2 controls the high
power circuitry that is occasionally turned off.
Reference
The 5.0 V bandgap reference is trimmed to
±
2.0%
tolerance at TJ = 25
°
C. The reference has short circuit
protection and is capable of providing in excess of 30 mA for
powering any additional control system circuitry.
Design Considerations
Do not attempt to construct the converter on
wire–wrap or plug–in prototype boards.
High frequency
circuit layout techniques are imperative to prevent
pulse–width jitter. This is usually caused by excessive noise
pick–up imposed on the Current Sense or Voltage Feedback
inputs. Noise immunity can be improved by lowering circuit
impedances at these points. The printed circuit layout should
contain a ground plane with low current signal and high
current switch and output grounds returning on separate
paths back to the input filter capacitor. Ceramic bypass
capacitors (0.1
μ
F) connected directly to VCC and Vref may be
required depending upon circuit layout. This provides a low
impedance path for filtering the high frequency noise. All high
current loops should be kept as short as possible using
heavy copper runs to minimize radiated EMI. The Error Amp
compensation circuitry and the converter output
voltage–divider should be located close to the IC and as far
as possible from the power switch and other noise generating
components.
相關PDF資料
PDF描述
MC34066DW HIGH PERFORMANCE RESONANT MODE CONTROLLERS
MC33066DW HIGH PERFORMANCE RESONANT MODE CONTROLLERS
MC33066P HIGH PERFORMANCE RESONANT MODE CONTROLLERS
MC34066P Enhanced Product Single Voltage Detectors 5-SC70 -55 to 125
MC33066 HIGH PERFORMANCE RESONANT MODE CONTROLLERS
相關代理商/技術參數
參數描述
MC34065P-L 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
MC34066 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HIGH PERFORMANCE RESONANT MODE CONTROLLERS
MC34066DW 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HIGH PERFORMANCE RESONANT MODE CONTROLLERS
MC34066P 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:High Performance Resonant Mode Controllers
MC34067 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Resonant Mode Controllers
主站蜘蛛池模板: 万载县| 秦安县| 榆树市| 七台河市| 莎车县| 缙云县| 四会市| 寻乌县| 马山县| 达拉特旗| 蛟河市| 都兰县| 祁东县| 体育| 兴文县| 宁乡县| 丰宁| 沛县| 江永县| 沿河| 平泉县| 鄢陵县| 大新县| 彭山县| 乐都县| 北宁市| 泰顺县| 凤凰县| 盐边县| 志丹县| 马龙县| 庆阳市| 贡嘎县| 曲水县| 永顺县| 石景山区| 城市| 新郑市| 临洮县| 方山县| 丘北县|