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PCA9551PW,112

  • 描述:种类: 电源开关 输出电流 / 通道: 25毫安 最小电源电压: 5.5V 最大电源电压: 2.3伏 供应商设备包装: 16-TSSOP 安装类别: 表面安装
  • 品牌: 恩智浦 (NXP)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 243

  • 库存: 0
  • 单价: ¥7.46019
  • 数量:
    - +
  • 总计: ¥1,812.83
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规格参数

  • 内部开关 Yes
  • 最小电源电压 5.5V
  • 输出电压 -
  • 工作温度 -40摄氏度~85摄氏度(TA)
  • 安装类别 表面安装
  • 部件状态 过时的
  • 最大电源电压 2.3伏
  • 频率 -
  • 亮度控制 PWM
  • 拓扑结构 -
  • 应用及使用 -
  • 制造厂商 恩智浦 (NXP)
  • 种类 电源开关
  • 输出电流 / 通道 25毫安
  • 输出数量 8
  • 包装/外壳 16-TSSOP(0.173“,4.40毫米宽)
  • 供应商设备包装 16-TSSOP

PCA9551PW,112 产品详情

The PCA9551PW,112 LED blinker blinks LEDs in I²C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I²C-bus master's (MCU, MPU, DSP, chipset, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus master must send repeated commands to turn the LED on and off. This greatly increases the amount of traffic on the I²C-bus and uses up one of the master's timers. The PCA9551PW,112 LED blinker instead requires only the initial set-up command to program BLINK RATE 1 and BLINK RATE 2 (i.e., the frequency and duty cycle) for each individual output. From then on, only one command from the bus master is required to turn each individual open-drain output on, off, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sinks current is 25 mA per bit and 100 mA per package.

Any bits not used for controlling the LEDs can be used for General Purpose parallel Input/Output (GPIO) expansion.

The active LOW hardware reset pin (RESET) and Power-On Reset (POR) initializes the registers to their default state, all zeroes, causing the bits to be set HIGH (LED off).

Three hardware address pins on the PCA9551PW,112 allow eight devices to operate on the same bus.

The newer Fast-mode Plus PCA9634 8-bit LED controller offers an individual PWM dimming control for each channel for better color mixing capabilities with a global PWM for dimming or blinking all channels at the same time. There are 126 possible address combinations and the maximum output sink current is 25 mA per bit and 200 mA per package.

Feature

  • 8 LED drivers (on, off, flashing at a programmable rate)
  • 2 selectable, fully programmable blink rates (frequency and duty cycle) between 0.148 Hz and 38 Hz (6.74 seconds and 0.026 seconds)
  • Input/outputs not used as LED drivers can be used as regular GPIOs
  • Internal oscillator requires no external components
  • I²C-bus interface logic compatible with SMBus
  • Internal power-on reset
  • Noise filter on SCL/SDA inputs
  • Active LOW reset input
  • 8 open-drain outputs directly drive LEDs to 25 mA
  • Edge rate control on outputs
  • No glitch on power-up
  • Supports hot insertion
  • Low standby current
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 0 Hz to 400 kHz clock frequency
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
  • Packages offered: SO16, TSSOP16, HVQFN16


PCA9551PW,112所属分类:LED 驱动器,PCA9551PW,112 由 恩智浦 (NXP) 设计生产,可通过久芯网进行购买。PCA9551PW,112价格参考¥7.460187,你可以下载 PCA9551PW,112中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询PCA9551PW,112规格参数、现货库存、封装信息等信息!

恩智浦 (NXP)

恩智浦 (NXP)

NXP Semiconductors是一家领先的嵌入式控制器供应商,为汽车、无线连接等多个行业提供广泛的MCU产品组合,包括基于Arm的处理器和微控制器。他们继续推动创新,为工业和汽车应用提供强大的电源...

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