參數(shù)資料
型號(hào)： ISL97650
廠商： Intersil Corporation
英文描述： 4-Channel Integrated LCD Supply
中文描述： 4通道集成LCD電源
文件頁(yè)數(shù)： 19/20頁(yè)
文件大小： 333K
代理商： ISL97650
19
FN9198.3
November 28, 2006
Layout Recommendation
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.
There are 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
REF
and V
DC
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 be as far away from LX
node as possible.
5. The power ground (PGND) and signal ground (SGND)
pins should be connected at only one point.
6. The exposed die plate, on the underneath 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 the 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.
A demo board is available to illustrate the proper layout
implementation.
ISL97650
相關(guān)PDF資料
PDF描述
ISL97650ARTZ-T 4-Channel Integrated LCD Supply
ISL97650ARTZ-TK 4-Channel Integrated LCD Supply
ISL97652 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
ISL97652IRZ 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
ISL97652IRZ-T 4-Channel Integrated LCD Supply with Dual VCOM Amplifiers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL97650ARTZ-T 功能描述:顯示驅(qū)動(dòng)器和控制器 ISL97650ARTZ-T 4-CH INTEGRTD LCD SUPY RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
ISL97650ARTZ-TK 功能描述:顯示驅(qū)動(dòng)器和控制器 ISL97650ARTZ-TK 4-CH INTEGRTD LCD SUPY 1K RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel
ISL97650BIRTZ-T 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 4-CH INTEGRTD LCD SUPPLY 36LD TQFN RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
ISL97650BIRTZ-TK 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 4-CH INTEGRTD LCD SUPPLY 36LD TQFN RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
ISL97651ARTZ 制造商:Intersil Corporation 功能描述:
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