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NXP Semiconductors
PCA9632
4-bit Fm+ I 2 C-bus low power LED driver
The Software Reset (SWRST) Call allows the master to perform a reset of the PCA9632
through the I 2 C-bus, identical to the Power-On Reset (POR) that initializes the registers to
their default state causing the outputs to be set high-impedance. This allows an easy and
quick way to reconfigure all device registers to the same condition.
2. Features and benefits
? 40 ? power reduction compared to PCA9633
? 4 LED drivers. Each output programmable at:
? Off
? On
? Programmable LED brightness
? Programmable group dimming/blinking mixed with individual LED brightness
? 1 MHz Fast-mode Plus I 2 C-bus interface with 30 mA high drive capability on SDA
output for driving high capacitive buses
? 256-step (8-bit) linear programmable brightness per LED output varying from fully off
(default) to maximum brightness using a 1.5625 kHz PWM signal in Individual
brightness mode
? 64-step (6-bit) linear programmable brightness for each LED output varying from fully
off (default) to maximum brightness using a 6.25 kHz PWM signal in group dimming
mode
? In group dimming mode, 16-step group brightness control allows global dimming
(using a 190 Hz PWM signal) from fully off to maximum brightness (default)
? 256-step (8-bit) linear programmable brightness per LED output varying from fully off
(default) to maximum brightness using a 1.5625 kHz PWM signal in group blinking
mode
? 64-step group blinking with frequency programmable from 24 Hz to 6 Hz and
duty cycle from 0 % to 98.4 %
? 256-step group blinking with frequency programmable from 6 Hz to 0.09 Hz (10.73 s)
and duty cycle from 0 % to 99.6 %
? Four totem pole outputs (sink 25 mA and source 10 mA at 5 V) with software
programmable open-drain LED outputs selection (default at high-impedance). No input
function.
? 10-pin package option provides two hardware address pins allowing four devices to
operate on the same bus
? 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’).
? Software Reset feature (SWRST Call) allows the device to be reset through the
I 2 C-bus
? 400 kHz internal oscillator requires no external components
? Internal power-on reset
? Noise filter on SDA/SCL inputs
? Edge rate control on outputs
? No glitch on power-up
? Supports hot insertion
? Low standby current of < 1 ? A
? Operating power supply voltage range of 2.3 V to 5.5 V
PCA9632
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 27 July 2011
? NXP B.V. 2011. All rights reserved.
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PCA9632DP2118 制造商:NXP Semiconductors 功能描述:IC LED DRVR TSSOP
PCA9632DP2-T 功能描述:LED照明驱动器 4-BIT FM+I2C-BUS LOW POWER LED 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
PCA9632TK,118 功能描述:LED照明驱动器 4-BIT FM+I2C-BUS 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
PCA9632TK2,118 功能描述:LED照明驱动器 4-BIT FM+I2C-BUS 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
PCA9632TK2-T 功能描述:LED照明驱动器 4-BIT FM+I2C-BUS LOW POWER LED 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
PCA9632TK-T 功能描述:LED照明驱动器 4-BIT FM+I2C-BUS LOW POWER LED 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
PCA9633BS,118 功能描述:LED照明驱动器 4BIT I2C FM+ TP LED 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
PCA9633BS-T 功能描述:LED照明驱动器 4BIT I2C FM+ TP LED CON RST OE 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