I/O Expanders | CAT9532

I/O 端口扩展器，I2C / SMBus，16 位，带 LED 调光

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CAT9532 是一个 CMOS 器件，提供用于 LED 调光控制的 16 位并行输入/输出扩展器。CAT9532 输出可以直接驱动 16 个并联 LED。每个 LED 均可单独开关或以两个可编程速率之一进行闪烁。该器件为背景灯或色彩混合应用提供了 256 个亮度梯度的 LED 调光简单方案。CAT9532 适用于兼容 I2C 和 SMBus 且必需限制总线数据量或释放主总线计时器的应用。 CAT9532 包含一个内部振荡器和两个 PWM 信号，用于驱动 LED 输出。用户可以为每个 PWM 信号编程时段和占空比。发出初始设置命令来编程闪烁速率 1 和闪烁速率 2（频率和占空比）之后，仅需主总线的一个命令即可打开、关闭每个开漏输出或以闪烁速率 1 和闪烁速率 2 循环。 每个开漏 LED 输出均可提供 25 mA 的最大输出电流。所有 I/O 接收的总电流不得超过 200 mA。

  • Backlighting
  • RGB color mixing
  • Sensors control
  • Power switches, push-buttons
  • Alarm systems
  • 16 LED Drivers with Dimming Control
  • 256 Brightness Steps
  • 16 Open Drain Outputs Drive 25 mA Each
  • 2 Selectable Programmable Blink Fates:
    - Frequency: 0.593 Hz to 152 Hz
    - Duty Cycle: 0% to 99.6%
  • I/Os can be Used as GPIOs
  • 400 kHz I2C Bus Compatible
  • 2.3 V to 5.5 V Operation
  • 5.0 V Tolerant I/Os
  • Active Low Reset Input

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CAT9532HV6I-GT2

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Active

CAD Model

Pb

A

H

P

TQFN-24

510AG

1

260

REEL

2000

Y

16

8 Slave ID Addresses

2.3

5.5

No

No

Yes

25

$0.747

More Details

CAT9532YI-T2

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Active

CAD Model

Pb

A

H

P

TSSOP-24

948AR

1

260

REEL

2000

Y

16

8 Slave ID Addresses

2.3

5.5

No

No

Yes

25

$0.9486

More Details

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