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: MC34065DW-L
廠商: MOTOROLA INC
元件分類: 穩壓器
英文描述: HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
中文描述: 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
封裝: PLASTIC, SOP-16
文件頁數: 8/16頁
文件大小: 419K
代理商: MC34065DW-L
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
MC34065DW Ultra-Small 3-Pin Supply Voltage Supervisor 5-SC70 -40 to 85
MC34065P Enhanced Product Single Voltage Detector 5-SC70 -55 to 125
MC34065P-H Enhanced Product Single Voltage Detector 5-SC70 -40 to 125
MC34066DW HIGH PERFORMANCE RESONANT MODE CONTROLLERS
MC33066DW HIGH PERFORMANCE RESONANT MODE CONTROLLERS
相關代理商/技術參數
參數描述
MC34065-H 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
MC34065-H_06 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual Channel Current Mode Controllers
MC34065-L 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:High Performance Dual Channel Current Mode Controllers
MC34065P 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLER
MC34065P-H 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS
主站蜘蛛池模板: 商都县| 高青县| 灌阳县| 邛崃市| 海盐县| 湟中县| 宝兴县| 大渡口区| 冕宁县| 大洼县| 玛多县| 双江| 凤阳县| 监利县| 绥江县| 余庆县| 绥棱县| 怀远县| 文水县| 铅山县| 偃师市| 柯坪县| 通化县| 秦安县| 浙江省| 屏南县| 枝江市| 罗平县| 南投市| 寿阳县| 游戏| 青河县| 青浦区| 台州市| 华安县| 清新县| 西乌珠穆沁旗| 陇川县| 色达县| 湘潭市| 鞍山市|