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参数资料
| 型号： | IR3086AMPBF |
| 厂商： | International Rectifier |
| 文件页数： | 29/33页 |
| 文件大小： | 0K |
| 描述： | IC PHASE CONTROLLER OVP 20MLPQ |
| 标准包装： | 100 |
| 系列： | XPhase™ |
| 应用： | 处理器 |
| 电流 - 电源： | 10mA |
| 电源电压： | 8.4 V ~ 14 V |
| 工作温度： | 0°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-MLPQ |
| 供应商设备封装： | 20-MLPQ（4x4） |
| 包装： | 剪切带 (CT) |
| 其它名称： | *IR3086AMPBF |
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IR3086APbF
LAYOUT GUIDELINES
The following layout guidelines are recommended to reduce the parasitic inductance and resistance of the PCB
layout, therefore minimizing the noise coupled to the IC.
? Dedicate at least one middle layer for a ground plane, which is then split into signal ground plane (LGND) and
power ground plane (PGND).
? Connect PGND to LGND pins of each phase IC to the ground tab, which is tied to LGND and PGND planes
respectively through vias.
? In order to reduce the noise coupled to SCOMP pin of phase IC, use a dedicated wire to connect the capacitor
C SCOMP directly to LGND pin. However, connect PWM ramp capacitor C PWMRMP , phase delay programming
resistor R PHASE2 or R PHASE3, decoupling capacitor C VCC to LGND plane through vias.
? Place current sense resistors and capacitors (R CS+ , R CS- , C CS+ , and C CS- ) close to phase IC. Use Kelvin
connection for the inductor current sense wires, but separate the two wires by ground polygon. The wire from
the inductor terminal to RCS- should not cross over the fast transition nodes, i.e. switching nodes, gate drive
outputs and bootstrap nodes.
? Place the decoupling capacitors C VCC and C VCCL as close as possible to VCC and VCCL pins of the phase IC
respectively.
? Place the phase IC as close as possible to the MOSFETs to reduce the parasitic resistance and inductance of
the gate drive paths.
? Place the input ceramic capacitors close to the drain of top MOSFET and the source of bottom MOSFET. Use
combination of different packages of ceramic capacitors.
? There are two switching power loops. One loop includes the input capacitors, top MOSFET, inductor, output
capacitors and the load; another loop consists of bottom MOSFET, inductor, output capacitors and the load.
Route the switching power paths using wide and short traces or polygons; use multiple vias for connections
between layers.
LGND
To Signal Bus
PLANE
To VIN
To LGND
Plane
To LGND
Plane
To Gate
Drive
Voltage
SCOMP
EAIN
PWMRMP
LGND
BIASIN
DACIN
PHSFLT
CSIN-
To LGND
C VCC
VCC
CSIN+
Plane
To PGND
Plane
C VCCL
PGND
To Bottom To Top
MOSFET MOSFET
To
Ground
Polygon
Ground
Polygon
PLANE
Page 29 of 33
Switching
Node
To Inductor
May 13, 2009
相关PDF资料 |
PDF描述 |
|---|---|
| IR3086MPBF | IC CONTROLLER PHASE 20MLPQ |
| IR3087MPBF | IC XPHASE W/OVP/TM CTRL 20MLPQ |
| IR3087M | IC XPHASE W/OVP/TM CTRL 20-MLPQ |
| IR3088AMPBF | IC XPHASE CONTROL 20L-MLPQ |
| IR3088AMTR | IC XPHASE W/FAULT DET 20L-MLPQ |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR3086AMPBF | 制造商:International Rectifier 功能描述:Controller IC Package/Case:20-MLPQ |
| IR3086AMTR | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASETM PHASE IC WITH OVP, FAULT AND OVERTEMP DETECT |
| IR3086AMTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE PHASE IC Overtemp 2.5A 200ns RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| IR3086AMTRPBF-CUT TAPE | 制造商:IR 功能描述:IR3086APbF Series 14 V 400 KHz Phase IC Combined with an IR XPhaseTM Control IC |
| IR3086APBF | 制造商:IRF 制造商全称:International Rectifier 功能描述:XPHASE PHASE IC WITH OVP, FAULT AND OVERTEMP DETECT |
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