收藏本站
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I 2 C-bus LED controller
The active LOW Output Enable input pin (OE) allows asynchronous control of the LED
outputs and can be used to set all the outputs to a defined I 2 C-bus programmable logic
state. The OE can also be used to externally ‘pulse width modulate’ the outputs, which is
useful when multiple devices need to be dimmed or blinked together using software
control.
Software programmable LED All Call and three Sub Call I 2 C-bus addresses allow all or
defined groups of PCA9685 devices to respond to a common I 2 C-bus address, allowing
for example, all red LEDs to be turned on or off at the same time or marquee chasing
effect, thus minimizing I 2 C-bus commands. Six hardware address pins allow up to
62 devices on the same bus.
The Software Reset (SWRST) General Call allows the master to perform a reset of the
PCA9685 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 LOW. This allows an easy and
quick way to reconfigure all device registers to the same condition via software.
2. Features and benefits
16 LED drivers. Each output programmable at:
Off
On
Programmable LED brightness
Programmable LED turn-on time to help reduce EMI
1 MHz Fast-mode Plus compatible I 2 C-bus interface with 30 mA high drive capability
on SDA output for driving high capacitive buses
4096-step (12-bit) linear programmable brightness per LED output varying from fully
off (default) to maximum brightness
LED output frequency (all LEDs) typically varies from 40 Hz to 1000 Hz (Default of 1Eh
in PRE_SCALE register results in a 200 Hz refresh rate with oscillator clock of
25 MHz.)
Sixteen totem pole outputs (sink 25 mA and source 10 mA at 5 V) with software
programmable open-drain LED outputs selection (default at totem pole). No input
function.
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’).
Active LOW Output Enable (OE) input pin. LEDn outputs programmable to logic 1,
logic 0 (default at power-up) or ‘high-impedance’ when OE is HIGH.
6 hardware address pins allow 62 PCA9685 devices to be connected to the same
I 2 C-bus
Toggling OE allows for hardware LED blinking
4 software programmable I 2 C-bus addresses (one LED All Call address and three LED
Sub Call addresses) allow groups of devices to be addressed at the same time in any
combination (for example, one register used for ‘All Call’ so that all the PCA9685s on
the I 2 C-bus can be addressed at the same time and the second register used for three
different addresses so that 1 ? 3 of all devices on the bus can be addressed at the same
time in a group). Software enable and disable for these I 2 C-bus address.
Software Reset feature (SWRST General Call) allows the device to be reset through
the I 2 C-bus
PCA9685
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 2 September 2010
? NXP B.V. 2010. All rights reserved.
2 of 51
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PCA9922PW,118 IC LED DRIVER LINEAR 16-TSSOP
PCA9955TW,118 IC LED DRVR CONST CURR
PCF85102C-2P/03,11 IC EEPROM 2KBIT 100KHZ 8DIP
PCF85103C-2T/00,11 IC EEPROM 2KBIT 100KHZ 8SOIC
PCF8570T/F5,512 IC SRAM 2KBIT 100KHZ 8SOIC
PCF8582C-2T/03,118 IC EEPROM 2KBIT 100KHZ 8SOIC
PCF8594C-2T/02,118 IC EEPROM 4KBIT 100KHZ 8SOIC
PCF8598C-2P/02,112 IC EEPROM 8KBIT 100KHZ 8DIP
相关代理商/技术参数
PCA9685PW/Q900,118 功能描述:LED显示驱动器 LED Driver 2.3V-5.5V 6mA RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
PCA9691BS/1 制造商:NXP Semiconductors 功能描述:IC ADC/DAC 8-BIT I2C 16-HVQFN 制造商:NXP Semiconductors 功能描述:IC, ADC/DAC, 8-BIT, I2C, 16-HVQFN
PCA9691BS/1,118 功能描述:I2C 接口集成电路 ADC/DAC 16-Pin HVQFN EP RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16
PCA9691BS/1118 制造商:NXP Semiconductors 功能描述:PCA9691BS/HVQFN16/REEL13//1
PCA9691T/1，112 制造商:NXP Semiconductors 功能描述:
PCA9691T/1，118 制造商:NXP Semiconductors 功能描述:
PCA9691T/1,512 功能描述:I2C 接口集成电路 8b A/D AND D/A COVERTER RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16
PCA9691T/1,518 功能描述:模数转换器 - ADC 8-bit A/D and D/A converter RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32