参数资料
| 型号： | ISL97649BIRZ |
| 厂商： | Intersil |
| 文件页数： | 18/20页 |
| 文件大小： | 0K |
| 描述： | IC POWER MANAGEMENT |
| 标准包装： | 75 |
| 系列： | * |
ISL97649B
Layout Recommendations
The device's performance, including efficiency, output noise,
transient response and control loop stability, is dramatically
affected by the PCB layout. PCB layout is critical, especially at
high switching frequency.
Some general guidelines for layout:
1. Place the external power components (the input capacitors,
output capacitors, boost inductor and output diodes, etc.) in
close proximity to the device. Traces to these components
should be kept as short and wide as possible to minimize
parasitic inductance and resistance.
2. Place V DC and V REF bypass capacitors close to the pins.
3. Reduce the loop with large AC amplitudes and fast slew rate.
4. The feedback network should sense the output voltage
directly from the point of load and should be as far away from
the LX node as possible.
5. The power ground (PGND) and signal ground (SGND) pins
should be connected at the ISL97649B exposed die plate
area.
6. The exposed die plate, on the underside of the package,
should be soldered to an equivalent area of metal on the PCB.
This contact area should have multiple via connections to the
back of the PCB as well as connections to intermediate PCB
layers, if available, to maximize thermal dissipation away
from the IC.
7. To minimize thermal resistance of the package when
soldered to a multi-layer PCB, the amount of copper track and
ground plane area connected to the exposed die plate should
be maximized and spread out as far as possible from the IC.
The bottom and top PCB areas especially should be
maximized to allow thermal dissipation to the surrounding air.
8. Minimize feedback input track lengths to avoid switching
noise pick-up.
The ISL97649BIRTZ-EVALZ evaluation board is available to
illustrate the proper layout implementation.
18
FN7927.2
June 27, 2013
相关PDF资料 |
PDF描述 |
|---|---|
| ISL97650ARTZ-T | IC LCD SUPPLY HP 4CHN 36-TQFN |
| ISL97650BIRTZ-TK | IC LCD SUPPLY 4CHN 36-TQFN |
| ISL97651ARTZ-T | IC LCD SUPPLY HP 4CHN 36-TQFN |
| ISL97652IRZ | IC LCD SUPPLY HP 4CHN 48-QFN |
| ISL97653AIRZ | IC LCD SUPPLY 5CHN 40-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL97649BIRZ-T | 功能描述:PMIC 解决方案 LCD SUPPLY DCP VCOM AMP BPM +SET 28L 4X5 RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
| ISL97650ARTZ-T | 功能描述:显示驱动器和控制器 ISL97650ARTZ-T 4-CH INTEGRTD LCD SUPY RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| ISL97650ARTZ-TK | 功能描述:显示驱动器和控制器 ISL97650ARTZ-TK 4-CH INTEGRTD LCD SUPY 1K RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| ISL97650BIRTZ-T | 功能描述:直流/直流开关调节器 4-CH INTEGRTD LCD SUPPLY 36LD TQFN RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| ISL97650BIRTZ-TK | 功能描述:直流/直流开关调节器 4-CH INTEGRTD LCD SUPPLY 36LD TQFN RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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