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图片源于供应商或网络,实物可能存在差异,请以实物为准

pca9634pw,118

数量

单价

总价

¥ 136.054219

10+

¥ 100.476554

¥ 1004.76554

25+

¥ 91.605483

¥ 2290.137075

100+

¥ 81.987374

¥ 8198.7374

250+

¥ 77.225009

¥ 19306.25225

500+

¥ 74.516998

¥ 37258.499

1000+

¥ 72.462645

¥ 72462.645

2500+

¥ 69.754634

¥ 174386.585

5000+

¥ 68.073799

¥ 340368.995

显示更多 ▼

购买数量

总价金额：￥ 136.054219

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样品申购

PDF描述：PCA9634 - 8-bit Fm+ I2C-bus LED driver TSSOP2 20-Pin

产品概述

PCA9634PW,118 产品概述

一、产品简介

PCA9634PW,118 是恩智浦（NXP）推出的一款 8 路 LED 驱动器 IC，采用 TSSOP-20 封装，面向需要多路可控亮度的照明与指示应用。器件工作电压范围为 DC 2.3V～5.5V，单通道输出电流可达 25mA，内部集成开关管，支持通过 I²C 总线进行亮度与开关控制，提供 PWM 与模拟调光功能，器件工作温度范围为 -40℃～+85℃。

二、主要功能与性能要点

通道数：8 路独立输出，可分别控制每一路 LED 的开/关与亮度。
调光方式：支持 PWM 调光与模拟调光，便于实现高分辨率亮度控制与平滑渐变效果。
输出能力：单通道最大输出电流 25mA，输出电压最高可达 5.5V；适合中小功率指示灯与背光驱动。
开关管：内部集成开关晶体管，简化外部功率器件设计与板上空间占用。
通信接口：I²C 总线编程控制，便于与 MCU 集成与级联扩展。
开关频率：25MHz（内部或开关相关频率），有利于实现高频调制与降低可感噪声。
工况适应性：宽工作电压与宽温度范围，适合工业与消费级环境。

三、典型应用场景

仪表与面板指示灯驱动：多路独立控制，适合控制状态指示与警示灯。
显示与按键背光：键盘、显示边缘/区域背光的分段调光与关断。
消费电子：遥控器、手持设备与家电指示灯控制。
工业控制：需要可靠工作温度与电压裕度的指示/信号灯驱动方案。

四、封装与系统集成

PCA9634PW 提供 TSSOP-20 封装，便于小型化 PCB 布局。设计时建议在电源引脚处放置适当的去耦电容，I²C 总线侧使用合适的上拉电阻，并注意信号线与开关输出的走线分离以降低干扰。若需要更大输出电流或更高电压驱动，应在输出端级联外部功率级或选择更高功率器件。

五、选型建议与注意事项

如果目标应用需要超过 25mA 的驱动能力，应评估外置开关管或功率放大方案；若要求更高通道数，可考虑级联或更高集成度的同类器件。
高速开关或高频 PWM 工作时，注意电磁兼容与散热设计；在高温环境下检查器件热降额。
I²C 总线多设备连接时，合理设定地址与上拉电阻，避免总线冲突。
评估系统上电顺序与短路保护需求，必要时增加保护电路以提升可靠性。

PCA9634PW,118 以其多通道、I²C 可编程调光与内置开关的集成特性，为需要紧凑、可控 LED 阵列的产品提供实用的驱动解决方案。

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/www/wwwroot/www.ic72.com/vendor/topthink/think-orm/src/db/Raw.php ( 1.22 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-view/src/Think.php ( 8.00 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-template/src/Template.php ( 46.61 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
/www/wwwroot/www.ic72.com/runtime/temp/995a9576ac15c40d17b616c95da56580.php ( 75.72 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/Response.php ( 8.65 KB )
/www/wwwroot/www.ic72.com/vendor/topthink/framework/src/think/response/Html.php ( 0.97 KB )
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CONNECT:[ UseTime:0.000971s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com;charset=utf8
SHOW FULL COLUMNS FROM `visit_log` [ RunTime:0.001386s ]
INSERT INTO `visit_log` SET `ip` = '216.73.216.133' , `useragent` = 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)' , `reffer` = '' , `host` = 'https://www.ic118.com/stock/detail_51067851.html' [ RunTime:0.004823s ]
SHOW FULL COLUMNS FROM `product_type` [ RunTime:0.002633s ]
SELECT `id`,`typeid`,`name`,`typestr` FROM `product_type` WHERE `id` NOT IN (11,12,13,14,15) AND `id` <= 750 [ RunTime:0.004738s ]
SHOW FULL COLUMNS FROM `o_cart` [ RunTime:0.002795s ]
SELECT COUNT(*) AS think_count FROM `o_cart` WHERE ( `userId` = 0 AND `visitIP` = '216.73.216.133' ) [ RunTime:0.000430s ]
SHOW FULL COLUMNS FROM `ad` [ RunTime:0.002408s ]
SELECT * FROM `ad` WHERE `isDisplay` = 1 [ RunTime:0.000665s ]
SHOW FULL COLUMNS FROM `stock` [ RunTime:0.002762s ]
SELECT `s`.*,`u`.`company`,`t`.`name` FROM `stock` `s` LEFT JOIN `user` `u` ON `u`.`id`=`s`.`userid` LEFT JOIN `product_type` `t` ON `t`.`id`=`s`.`categoryid` WHERE `s`.`id` = '51067851' LIMIT 1 [ RunTime:0.003881s ]
SHOW FULL COLUMNS FROM `stock_pra` [ RunTime:0.010167s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 51067851 [ RunTime:0.009656s ]
SHOW FULL COLUMNS FROM `stock_price` [ RunTime:0.003612s ]
SELECT * FROM `stock_price` WHERE `stockid` = 51067851 ORDER BY `minOrder` ASC [ RunTime:0.016438s ]
SHOW FULL COLUMNS FROM `stock_unitquantity` [ RunTime:0.013418s ]
SELECT * FROM `stock_unitquantity` WHERE `stockid` = 51067851 ORDER BY `unit` DESC [ RunTime:0.010546s ]
SHOW FULL COLUMNS FROM `stock_warehousequantity` [ RunTime:0.010609s ]
SELECT * FROM `stock_warehousequantity` WHERE `stockid` = 51067851 [ RunTime:0.010517s ]
SELECT `name` FROM `product_type` WHERE `id` = 0 LIMIT 1 [ RunTime:0.011014s ]
SELECT * FROM `stock_price` WHERE `stockid` = 51067851 ORDER BY `minOrder` ASC [ RunTime:0.020080s ]
CONNECT:[ UseTime:0.000881s ] mysql:host=127.0.0.1;port=3306;dbname=ic72com_pdf;charset=utf8
select * from pdf where partno='pca9634pw,118' and brandshort='nxp semiconductors' limit 1 [ RunTime:0.011862s ]
SHOW FULL COLUMNS FROM `stock_product_overview` [ RunTime:0.002395s ]
SELECT `memo` FROM `stock_product_overview` WHERE `icName` = 'pca9634pw,118' LIMIT 1 [ RunTime:0.068055s ]
SHOW FULL COLUMNS FROM `pdf` [ RunTime:0.002103s ]
SELECT `id`,`partno`,`note`,`note_cn` FROM `pdf` WHERE `partno` = 'pca9634pw,118' LIMIT 1 [ RunTime:0.041472s ]
SHOW FULL COLUMNS FROM `stock_pra_lib` [ RunTime:0.003421s ]
SELECT `pra` FROM `stock_pra_lib` WHERE ( ( `partno` = 'pca9634pw,118' OR `brand` LIKE 'nxp semiconductors%' ) ) LIMIT 1 [ RunTime:0.074182s ]
SELECT `id` FROM `stock` WHERE `id` <> 51067851 AND `partno` = 'pca9634pw,118' AND `lockUser` = 0 AND ( LOWER(brand) LIKE '%nxp semiconductors%' ) [ RunTime:0.038075s ]
SELECT * FROM `stock_pra` WHERE `stockid` = 51054441 [ RunTime:0.108305s ]
SHOW FULL COLUMNS FROM `icreplace` [ RunTime:0.038455s ]
SELECT `r`.*,`b`.`brandshort`,`b`.`brandcn` FROM `icreplace` `r` LEFT JOIN `stock_brand` `b` ON `b`.`id`=`r`.`icbrandid` WHERE `r`.`partno` = 'pca9634pw,118' ORDER BY `r`.`id` DESC LIMIT 5 [ RunTime:0.029722s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `categoryid` = 0 AND ( `partno` > 'pca9634pw,118' ) ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.086082s ]
SELECT `id`,`code`,`imgurl`,`minOrderPrice`,`partno`,`brand`,`package` FROM `stock` WHERE `status` = 3 ORDER BY `partno` ASC LIMIT 8 [ RunTime:0.046799s ]

0.898596s

pca9634pw,118

购买数量

总价金额： ￥ 136.054219

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PDF描述：PCA9634 - 8-bit Fm+ I2C-bus LED driver TSSOP2 20-Pin

产品概述

PCA9634PW,118 产品概述

一、产品简介

二、主要功能与性能要点

三、典型应用场景

四、封装与系统集成

五、选型建议与注意事项

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总价金额：￥ 136.054219