PCA9955BTW LED照明驅(qū)動器 I2c

  • 品牌:

    NXP

  • 型號:

    PCA9955BTW

  • 類別:

    貼片

  • 結(jié)構(gòu):

    固定

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產(chǎn)品信息


NXP Semiconductors PCA9952 16-channel Constant Current LED Driver

NXP Semiconductors PCA9952 16-channel 
Constant Current LED Driver

NXP Semiconductors PCA9955 LED drivers are I2C controlled 16-channel constant current drivers designed for dimming and blinking 57mA Red/Green/Blue/Amber (RGBA) LEDs in amusement products. Each channel has an 8-bit resolution (256 steps) 31.25kHz PWM controller with a duty cycle that is adjustable between 0% to 99.6%. This allows each LED to be set to a specific brightness. An additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency and an adjustable frequency. This additional controller is used to either dim or blink all the LEDs with the same value.

Features
  • 16 LED drivers. Each output programmable at:
    • Off
    • On
    • Programmable LED brightness
    • Programmable group dimming/blinking mixed with individual LED brightness
    • Programmable LEDn output enable delay to reduce EMI and surge currents
  • 16 constant current output channels can sink up to 57mA, tolerate up to 40V when OFF
  • Output current accuracy
    • 6% between output channels
    • 8% between PCA9952/55 devices
  • Open/short load/overtemperature detection mode to detect individual LED errors
  • 1MHz Fast-mode Plus compatible I2C-bus interface with 30mA high drive capability on SDA output for driving high capacitive buses
  • 256-step (8-bit) linear programmable brightness per LEDn output varying from fully off (default) to maximum brightness using a 31.25kHz PWM signal
  • 256-step group brightness control allows general dimming (using a 122Hz PWM signal) from fully off to maximum brightness (default)
  • 256-step group blinking with frequency programmable from 15Hz to 16.8s and duty cycle from 0% to 99.6%
  • Output state change programmable on the Acknowledge or the STOP Command to update outputs byte-by-byte or all at the same time (default to ’Change on STOP’)

Applications
  • RGB or RGBA LED drivers
  • LED status information
  • LED displays
  • LCD backlights
  • Keypad backlights for cellular phones or handheld devices
  • Automotive lighting
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公司介紹

以誠會友,商成于信!深圳市三磚科技有限公司前身為歐美集成總代理(上海)代理,歐美集成總代理(上海)代理有著20年多年的發(fā)展歷程,勵精圖治,在全球大環(huán)境這樣一個激烈競爭的汪洋大海中脫引而出,而今創(chuàng)立深圳市三磚科技有限公司,順應(yīng)時代發(fā)展潮流,主營集成電路元器件,我司為國巨、風(fēng)華、厚聲、三星的授權(quán)代理,與國內(nèi)外幾大廠商聯(lián)手,共同拓展中國市場,滿足中國高新技術(shù)發(fā)展的需求。三磚科技有限公司也是Intel、Atmel、ADI、TI、Freescale、Maxim、Micron、NS上海代理分銷商,產(chǎn)品主要應(yīng)用于IT、通信、遙控、航空航天、控制系統(tǒng)、汽車、機械、衛(wèi)星數(shù)等全系列產(chǎn)品,同時在業(yè)界幾大半導(dǎo)體品牌( ST、ON、PHI、DS )也有很好的來貨渠道;同時倉庫設(shè)在交通便利的皇崗口岸和香港九龍為客戶的需求提供更快捷,更便利的服務(wù)。 ‘以誠會友,商成于信’是我們的宗旨。我們將不斷的追求更加卓越的企業(yè)品質(zhì),成為自動化領(lǐng)域里您最強大的合作伙伴。 展望未來,我司正逐步向集團化方向發(fā)展,對于人才管理我們一直在培養(yǎng)精英人才,適應(yīng)時代需求,培養(yǎng)高精尖人才,研發(fā)新的商業(yè)模式,滿足廣大消費者的需求,成為您的集成電路貼身管家。 我司擁有獨立進出口權(quán)以及國外渠道,都是歐美日原廠直接采購,在保證100%原廠正品的基礎(chǔ)上,不僅提供給客戶最優(yōu)惠的價格,而且也能享受到最短的貨期。我司可為客戶提供從技術(shù)咨詢、產(chǎn)品銷售、技術(shù)支持到售后服務(wù)的全程服務(wù)。
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