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CAT9552
16-Channel I 2 C-bus LED
Driver with Programmable
Blink Rate
Description
The CAT9552 is a 16 ? channel, parallel input/output port expander
optimized for LED On/Off and blinking control. Each individual LED
may be turned ON, OFF, or set to blinking at one of two programmable
rates. The CAT9552 is compatible with I 2 C and SMBus applications
where it is desireable to limit the bus traffic or free ? up the bus master’s
internal timer. Three address pins allow up to eight CAT9552 devices
to occupy the same bus.
The CAT9552 contains an internal oscillator and two PWM signals,
which drive the LED outputs. The user may program the period and
duty cycle for each individual PWM signal. After an initial set ? up
command to program the Blink Rate 1 and Blink Rate 2 (frequency
and duty cycle), only one command from the bus master is required to
turn each individual open drain output ON, OFF, or cycle at Blink
Rate 1 or Blink Rate 2. Each open drain LED output can sink a
maximum current of 25 mA. The total continuous current sunk by all
I/Os must not exceed 200 mA per package.
Features
? 16 LED Drivers with On/Off and Programmable Blink Rate Control
? 2 Selectable, Programmable Blink Rates:
– Frequency: 0.172 Hz to 44 Hz
– Duty Cycle: 0% to 99.6%
? 16 Open Drain Outputs Drive 25 mA Each
? I/Os can be Used as GPIOs
? 400 kHz I 2 C Bus Compatible
? 2.3 V to 5.5 V Operation
? 5 V Tolerant I/Os
? Active Low Reset Input
? 24 ? Lead SOIC, TSSOP and 24 ? pad TQFN (4 x 4 mm) Packages
? These Devices are Pb ? Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
http://onsemi.com
SOIC ? 24
W SUFFIX
CASE 751BK
TSSOP ? 24
Y SUFFIX
CASE 948AR
TQFN ? 24
HV6 SUFFIX
CASE 510AG
TQFN ? 24
HT6 SUFFIX
CASE 510AN
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
?
?
?
?
Office Machines
Appliance Control Panels
Alarm Systems
Point of Sale Displays
? Semiconductor Components Industries, LLC, 2011
December, 2011 ? Rev. 0
1
Publication Order Number:
CAT9552/D
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相关代理商/技术参数
CAT9552WI-T1 功能描述:LED照明驱动器 16Ch I2C-Bus LED Drvr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
CAT9552YI 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
CAT9552YI-T2 功能描述:LED照明驱动器 16Ch I2C-Bus LED Drvr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
CAT9554AHV4I 功能描述:接口-I/O扩展器 8-Bit Parallel IO RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
CAT9554AHV4I-GT2 功能描述:接口-I/O扩展器 8B I2C/SMBUS I/O PT W/INT RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
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CAT9554AWGI-T2 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
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