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参数资料
| 型号： | ADP3121JRZ-RL |
| 厂商： | ON Semiconductor |
| 文件页数： | 7/10页 |
| 文件大小： | 0K |
| 描述： | IC MOSFET DRIVER DUAL 12V 8SOIC |
| 标准包装： | 2,500 |
| 配置： | 高端和低端，同步 |
| 输入类型： | PWM |
| 延迟时间： | 35ns |
| 配置数： | 1 |
| 输出数： | 2 |
| 高端电压 - 最大（自引导启动）： | 35V |
| 电源电压： | 4.15 V ~ 13.2 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
ADP3121
Another consideration is the nonoverlap circuitry of the
ADP3121 that attempts to minimize the nonoverlap period.
During the state of the high ? side turning off to low ? side
turning on, the SW pin is monitored (as well as the
conditions of SW prior to switching) to adequately prevent
overlap.
However, during the low ? side turn ? off to high ? side
turn ? on, the SW pin does not contain information for
determining the proper switching time, so the state of the
Figure 2 shows an example of the typical land patterns
based on the guidelines given previously. For more detailed
layout guidelines for a complete CPU voltage regulator
subsystem, refer to the PC Board Layout Considerations
section of the ADP3188 data sheet.
C BST1
DRVL pin is monitored to go below one sixth of V CC ; then,
a delay is added. Due to the Miller capacitance and internal
delays of the low ? side MOSFET gate, ensure that the
Miller ? to ? input capacitance ratio is low enough, and that the
low ? side MOSFET internal delays are not so large as to
allow accidental turn ? on of the low ? side when the high ? side
turns on. Contact ON Semiconductor for an updated list of
recommended low ? side MOSFETs.
PC Board Layout Considerations
Use these general guidelines when designing printed
C BST2
R BST
circuit boards:
? Trace out the high current paths and use short, wide
(>20 mil) traces to make these connections.
? Minimize trace inductance between DRVH and DRVL
outputs and MOSFET gates.
? Connect the PGND pin of the ADP3121 as closely as
possible to the source of the lower MOSFET.
? Locate the V CC bypass capacitor as close as possible to
the V CC and PGND pins.
? Use vias to other layers, when possible, to maximize
thermal conduction away from the IC.
http://onsemi.com
7
C VCC
Figure 2. External Component
Placement Example
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相关代理商/技术参数 |
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| ADP3152 | 制造商:AD 制造商全称:Analog Devices 功能描述:5-Bit Programmable Synchronous Switching Regulator Controller for Pentium II Processor |
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| ADP3153 | 制造商:AD 制造商全称:Analog Devices 功能描述:5-Bit Programmable Dual Power Supply Controller for Pentium II Processor |
| ADP3153ARU | 制造商:AD 制造商全称:Analog Devices 功能描述:5-Bit Programmable Dual Power Supply Controller for Pentium II Processor |
| ADP3153ARU-REEL | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
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