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參數(shù)資料
| 型號： | LQH32CN100K53 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN |
| 中文描述： | 20mA的LED驅(qū)動器和3毫米的OLED驅(qū)動器集成肖特基x 2mm DFN封裝 |
| 文件頁數(shù)： | 17/24頁 |
| 文件大小： | 449K |
| 代理商： | LQH32CN100K53 |
LT3498
17
3498f
APPLICATIONS INFORMATION—LED AND OLED DRIVER
Board Layout Considerations
As with all switching regulators, careful attention must be
paid to the PCB board layout and component placement.
To prevent electromagnetic interference (EMI) problems,
proper layout of high frequency switching paths is essential.
Minimize the length and area of all traces connected to
the switching node pins (SW1 and SW2). Keep the sense
voltage pins (CAP1 and LED1) away from the switching
node. The FB2 connection for the feedback resistor R
FB2
should be tied directly from the V
OUT2
pin to the FB2
pin and be kept as short as possible, ensuring a clean,
noise-free connection. Place C
OUT1
and C
OUT2
next to the
CAP1 and CAP2 pins respectively. Always use a ground
plane ender the switching regulator to minimize interplane
coupling. Recommended component placement is shown
in Figure 13.
Figure 13. Recommended Board Layout
3498 F13
FB2
V
OUT2
V
OUT2
C3
R
FB2
R
SENSE1
C2
V
IN
C
IN
L1
L2
CAP1
SW1
SW2
CAP2
C1
CTRL1
LED1
GND
CTRL2
GND
GND
8
7
10
9
11
12
5
6
4
2
3
1
VIAS TO GROUND PLANE REQUIRED TO
IMPROVE THERMAL PERFORMANCE
VIAS TO VOUT2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LQH32CN100K53K | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:Chip Inductor (Chip Coil) Power Inductor (Wire Wound Type for Choke) LQH32C_53 Series |
| LQH32CN100K53L | 功能描述:固定電感器 10uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| LQH32CN101K21L | 功能描述:固定電感器 1210 100uH +/-10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| LQH32CN101K23L | 功能描述:固定電感器 100uH 10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| LQH32CN101K51L | 功能描述:固定電感器 1210 100uH +/-10% RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
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