参数资料
| 型号： | AD8383ACPZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC DECIMATING LCD DRIVER 48LFCSP |
| 产品变化通告： | AD8383ACPZ Discontinuation 28/Feb/2012 |
| 标准包装： | 1 |
| 系列： | DecDriver™ |
| 显示器类型： | LCD |
| 接口： | 并联 |
| 电流 - 电源： | 20mA |
| 电源电压： | 9 V ~ 18 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 48-LFCSP-VQ（7x7） |
| 包装： | 托盘 |
| 产品目录页面： | 798 (CN2011-ZH PDF) |
AD8383
THERMAL VIA STRUCTURE DESIGN
Effective heat transfer from the top to the inner and bottom
layers of the PCB requires thermal vias incorporated into the
thermal pad design. Thermal performance increases logarithmi-
REFERENCE PCB DESIGN
7 mm
cally with the number of vias, as shown in Figure 12. With the
AD8383 on a standard JEDEC PCB, θ JA reaches its specified
value when a total of 16 vias are used. At a via count above 36,
θ JA approaches its optimum value as the slope of the curve
approaches zero.
32
30
28
26
Figure 13. Recommended PCB Landing
24
The bottom thermal pad forms AVCC plane.
22
0
10
20
30
40
Thermal Pads
Top PCB Layer:
5.25 mm × 5.25 mm
NUMBER OF VIAS
Figure 12. Thermal Performance vs. Number of Vias (on a JEDEC PCB)
Near optimum thermal performance of production PCBs is
attained when the number of vias is at least 36.
SOLDER MASKING
To minimize the formation of solder voids due to solder flowing
into the via holes (solder wicking), the via diameter should be
Bottom PCB Layer:
Thermal via structure
Diameter:
Number of vias:
Via Grid Pitch:
Miscellaneous
Perimeter Pads:
Solder Mask Swell:
5.25 mm × 5.25 mm
0.25 mm
41
0.5 mm
0.5 mm × 0.25 mm
0.02 mm
small. Solder masking of the via holes on the top layer of the
PCB plugs the via holes, inhibiting solder flow into the holes. To
optimize the thermal pad coverage, the solder mask diameter
should be no more than 0.1 mm larger than the via diameter.
Rev. 0 | Page 11 of 16
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8384 | 制造商:AD 制造商全称:Analog Devices 功能描述:10-Bit, 6-Channel Decimating LCD DecDriver-R with Level Shifters |
| AD8384ASVZ | 功能描述:IC DRIVER LCD 6CH 10BIT 80-TQFP RoHS:是 类别:集成电路 (IC) >> PMIC - 显示器驱动器 系列:DecDriver™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 显示器类型:真空荧光 (VF) 配置:5 x 7（矩阵） 接口:串行 数字或字符:- 电流 - 电源:3.5mA 电源电压:2.7 V ~ 3.6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 供应商设备封装:16-QSOP 包装:带卷 (TR) |
| AD8385 | 制造商:AD 制造商全称:Analog Devices 功能描述:10-Bit, 12-Channel Decimating LCD DECDRIVER with Level Shifters |
| AD8385ASVZ | 制造商:Analog Devices 功能描述: |
| AD8386 | 制造商:AD 制造商全称:Analog Devices 功能描述:10-Bit, 12-Channel Output Decimating LCD Driver |
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