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CAT9532
16-bit Programmable LED
Dimmer with I 2 C Interface
Description
The CAT9532 is a CMOS device that provides 16 ? bit parallel
input/output port expander optimized for LED dimming control. The
CAT9532 outputs can drive directly 16 LEDs in parallel. Each
individual LED may be turned ON, OFF, or blinking at one of two
programmable rates. The device provides a simple solution for
dimming LEDs in 256 brightness steps for backlight and color mixing
applications. The CAT9532 is suitable in I 2 C and SMBus compatible
applications where it is necessary to limit the bus traffic or free ? up the
bus master ’s timer.
The CAT9532 contains an internal oscillator and two PWM signals
that drive the LED outputs. The user can program the period and duty
cycle for each individual PWM signal. After the 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 provide a
maximum output current of 25 mA. The total current sunk by all I/Os
must not exceed 400 mA.
Features
http://onsemi.com
SOIC ? 24
W SUFFIX
CASE 751BK
TSSOP ? 24
Y SUFFIX
CASE 948AR
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16 LED Drivers with Dimming Control
256 Brightness Steps
16 Open Drain Outputs Drive 25 mA Each
2 Selectable Programmable Blink Rates:
– Frequency: 0.593 Hz to 152 Hz
– Duty Cycle: 0% to 99.6%
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
TQFN ? 24
HV6 SUFFIX
CASE 510AG
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
Applications
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Backlighting
RGB Color Mixing
Sensors Control
Power Switches, Push ? buttons
Alarm Systems
? Semiconductor Components Industries, LLC, 2014
February, 2014 ? Rev. 3
1
Publication Order Number:
CAT9532/D
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相关代理商/技术参数
CAT9532WI-T1 制造商:ON Semiconductor 功能描述:IC PROGRAMMABLE LED DIMMER SOIC-24
CAT9532WI-T1-CUT TAPE 制造商:ON 功能描述:CAT9532 Series 25 mA 5.5 V 400 kHz I2C 16-bit Programmable LED Dimmer - SOIC-24
CAT9532YI 功能描述:LED照明驱动器 16-Bit Prog LED Dimmer w/Interface 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
CAT9532YI-T2 功能描述:LED照明驱动器 I2C/SMBus Expander w/LED Dimming 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
CAT9534HV4I-G 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
CAT9534HV4I-GT2 功能描述:接口-I/O扩展器 8-BIT I2C/SMBUS I/O PORT 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
CAT9534HV4I-GT2-CUT TAPE 制造商:ON 功能描述:CAT9534 Series 2.3 to 5.5 V 8-bit 8 I/O I? and SMBus I/O Port - TQFN-16
CAT9534WI-GT2 功能描述:接口-I/O扩展器 8B I2C &SMBus I/O PORT 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