- 您现在的位置：买卖IC网 > Datasheet目录307 > ADD5205ACPZ-RL (Analog Devices Inc)IC LED DVR WHITE BCKLGT 12LFCSP Datasheet资料下载
参数资料
| 型号： | ADD5205ACPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR WHITE BCKLGT 12LFCSP |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz |
| 电源电压： | 2.8 V ~ 18 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 12-LFCSP-WQ（3x3） |
| 包装： | 标准包装 |
| 工作温度： | -25°C ~ 85°C |
| 其它名称： | ADD5205ACPZ-RLDKR |
ADD5205
LAYOUT GUIDELINES
When designing a high frequency, switching, regulated power
Data Sheet
Layout Procedure
Use the following general guidelines when designing PCBs:
supply, layout is very important. Using a good layout can solve
many problems associated with these types of supplies. The main
problems are loss of regulation at high output current and/or
large input-to-output voltage differentials, excessive noise on
the output and switch waveforms, and instability. Using the
following guidelines can help minimize these problems.
Make all power (high current) traces as short, direct, and thick
as possible. It is good practice on a standard printed circuit
board (PCB) to make the traces an absolute minimum of 15 mil
(0.381 mm) per ampere. Place the inductor, output capacitors,
and output diode as close to each other as possible. This helps
reduce the EMI radiated by the power traces that is due to the
high switching currents through them. This also reduces lead
inductance and resistance, which in turn reduces noise spikes,
ringing, and resistive losses that produce voltage errors.
?
?
?
?
?
?
?
?
Keep C IN close to the VIN and GND leads of the ADD5205 .
Keep the high current path from C IN (through L1) to the
SW and GND leads as short as possible.
Keep the high current path from C IN (through L1), D1, and
C OUT as short as possible.
Keep high current traces as short and wide as possible.
Place the C OVP as close as possible to the OVP pin.
Place the LED current setting resistors as close as possible
to each pin to prevent noise pickup.
Avoid routing noise sensitive traces near high current
traces and components, especially the LED current setting
node (ISET).
Use a thermal pad size that is the same dimension as the
exposed pad on the bottom of the package.
The grounds of the IC, input capacitors, output capacitors, and
output diode (if applicable), should be connected close together,
directly to a ground plane. It is also a good idea to have a ground
plane on both sides of the PCB. This reduces noise by reducing
ground loop errors and by absorbing more of the EMI radiated
by the inductor.
Heat Sinking
When using a surface-mount power IC or external power
switches, the PCB can often be used as the heat sink. This is
done by using the copper area of the PCB to transfer heat from
the device. Users should maximize this area to optimize thermal
performance.
Due to how switching regulators operate, there are two power
states: on and off. During each state, there is a current loop made
by the power components currently conducting. Place the power
components so that the current loop is conducting in the same
direction during each of the two states. This prevents magnetic
field reversal caused by the traces between the two half cycles
and reduces radiated EMI.
Rev. 0 | Page 12 of 16
相关PDF资料 |
PDF描述 |
|---|---|
| ADE5566ASTZF62-RL | IC ENERGY METERING 1PHASE 64LQFP |
| ADE7156ASTZF16 | IC ENERGY METER 64-LQFP |
| ADE7156ASTZF8-RL | IC ENERGY METER 64-LQFP |
| ADE7518ASTZF8-RL | IC ENERGY METER MCU 8K 64LQFP |
| ADE7569ASTZF16 | IC ENERGY METER MCU 16K 64LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADD5207 | 制造商:AD 制造商全称:Analog Devices 功能描述:Four-String, White LED Driver |
| ADD52070001CPZR | 功能描述:IC LED DRIVER REGULATOR DIM 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:1 |
| ADD5207ACPZ | 制造商:Analog Devices 功能描述:DRIVER LED 1MHZ 36V 14LFCSP 制造商:Analog Devices 功能描述:DRIVER, LED, 1MHZ, 36V, 14LFCSP 制造商:Analog Devices 功能描述:DRIVER, LED, 1MHZ, 36V, 14LFCSP, Topology:Boost (Step Up), No. of Outputs:1, Out 制造商:Analog Devices 功能描述:DRIVER, LED, 1MHZ, 36V, 14LFCSP, Topology:Boost (Step Up), No. of Outputs:1, Output Voltage:36V, Driver Case Style:LFCSP, Input Voltage Min:6V, Input Voltage Max:21V, Dimming Control Type:PWM, Switching Frequency:1MHz, Operating , RoHS Compliant: Yes |
| ADD5207ACPZ-RL | 功能描述:IC LED DVR PHASE SHIFT 14LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| ADD5207XCPZ-RL | 功能描述:IC LED DRIVER REGULATOR DIM 制造商:analog devices inc. 系列:* 零件状态:上次购买时间 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。