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参数资料
| 型号： | IR3094MPBF |
| 厂商： | International Rectifier |
| 文件页数： | 25/29页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 48MLPQ |
| 标准包装： | 200 |
| PWM 型： | 电压模式 |
| 输出数： | 3 |
| 频率 - 最大： | 540kHz |
| 占空比： | 100% |
| 电源电压： | 8 V ~ 16 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 150°C |
| 封装/外壳： | 48-MLPQ |
| 包装： | 剪切带 (CT) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页
x
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spacing should be ? PP WR PLQLPL]H VKRUWLQJ
the minimum metal to metal spacing should be ? PP R] &RSSHU ? PP IRU R] &RSSHU
provide a fillet so a solder resist width of ? PP UHPDLQV
Ensure that the solder resist in-between the lead lands and the pad land is ? PP GXH WR
IR3094PBF
PCB AND STENCIL DESIGN METHODOLOGY
x 7x7
48 Lead
0.5mm pitch MLPQ
See Figures 10-12.
PCB Metal Design (0.5mm Pitch Leads)
1. Lead land width should be equal to nominal part lead width. The minimum lead to lead
2. Lead land length should be equal to maximum part lead length + 0.2 mm outboard extension +
0.05mm inboard extension. The outboard extension ensures a large and inspectable toe fillet, and the
inboard extension will accommodate any part misalignment and ensure a fillet.
3. Center pad land length and width should be = maximum part pad length and width. However,
and ? PP IRU R] &RSSHU
4. Sixteen 0.30mm diameter vias shall be placed in the pad land spaced at 1.2mm, and
connected to ground to minimize the noise effect on the IC, and to transfer heat to the PCB.
PCB Solder Resist Design (0.5mm Pitch Leads)
1. Lead lands. The solder resist should be pulled away from the metal lead lands by a minimum
of 0.060mm. The solder resist mis-alignment is a maximum of 0.050mm and it is recommended that
the lead lands are all NSMD. Therefore pulling the S/R 0.060mm will always ensure NSMD pads.
2. The minimum solder resist width is 0.13mm, therefore it is recommended that the solder resist
is completely removed from between the lead lands forming a single opening for each “group” of lead
lands.
3. At the inside corner of the solder resist where the lead land groups meet, it is recommended to
4. Land Pad. The land pad should be SMD, with a minimum overlap of the solder resist onto the
copper of 0.060mm to accommodate solder resist mis-alignment. In 0.5mm pitch cases it is allowable
to have the solder resist opening for the land pad to be smaller than the part pad.
5.
the high aspect ratio of the solder resist strip separating the lead lands from the pad land.
6. The single via in the land pad should be tented with solder resist 0.4mm diameter, or 0.1mm
larger than the diameter of the via.
Stencil Design (0.5mm Pitch Leads)
1. The stencil apertures for the lead lands should be approximately 80% of the area of the lead
lands. Reducing the amount of solder deposited will minimize the occurrence of lead shorts. Since for
0.5mm pitch devices the leads are only 0.25mm wide, the stencil apertures should not be made
narrower; openings in stencils < 0.25mm wide are difficult to maintain repeatable solder release.
2. The stencil lead land apertures should therefore be shortened in length by 80% and centered
on the lead land.
3. The center land pad aperture should be striped with 0.25mm wide openings and spaces to
deposit approximately 50% area of solder on the center pad. If too much solder is deposited on the
center land pad the part will float and the lead lands will be open.
4. The maximum length and width of the center land pad stencil aperture should be equal to the
solder resist opening minus an annular 0.2mm pull back to decrease the incidence of shorting the
center land to the lead lands when the part is pushed into the solder paste.
Page 25 of 29
09/26/05
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| IR3094MTRPBF | 功能描述:开关变换器、稳压器与控制器 XPHASE VRD10 CTRL IC CTRL IC 200 to 700mV 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 |
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| IR3101 | 功能描述:马达/运动/点火控制器和驱动器 Half-Bridge FredFET iMotion 1.6A 500V RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| IR3101-EL | 制造商:International Rectifier 功能描述: |
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