参数资料
型号: PCA9632TK2,118
厂商: NXP Semiconductors
文件页数: 19/39页
文件大小: 0K
描述: IC LED DRIVER RGBA 10-HVSON
标准包装: 6,000
拓扑: 开路漏极,PWM
输出数: 4
内部驱动器: 两者兼有
类型 - 主要: 背光,LED 闪烁器
类型 - 次要: RGBA
频率: 400kHz
电源电压: 2.3 V ~ 5.5 V
输出电压: 5.5V
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
供应商设备封装: 10-HVSON(3x3)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
其它名称: 935286503118
PCA9632TK2-T
PCA9632TK2-T-ND
NXP Semiconductors
PCA9632
4-bit Fm+ I 2 C-bus low power LED driver
8. Characteristics of the I 2 C-bus
The I 2 C-bus is for 2-way, 2-line communication between different ICs or modules. The two
lines are a serial data line (SDA) and a serial clock line (SCL). Both lines must be
connected to a positive supply via a pull-up resistor when connected to the output stages
of a device. Data transfer may be initiated only when the bus is not busy.
8.1 Bit transfer
One data bit is transferred during each clock pulse. The data on the SDA line must remain
stable during the HIGH period of the clock pulse as changes in the data line at this time
will be interpreted as control signals (see Figure 11 ).
SDA
SCL
data line
stable;
change
of data
data valid
allowed
mba607
Fig 11. Bit transfer
8.1.1 START and STOP conditions
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW
transition of the data line while the clock is HIGH is defined as the START condition (S). A
LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP
condition (P) (see Figure 12 ).
SDA
SCL
S
START condition
P
STOP condition
mba608
Fig 12. Definition of START and STOP conditions
8.2 System configuration
A device generating a message is a ‘transmitter ’; a device receiving is the ‘receiver ’. The
device that controls the message is the ‘master ’ and the devices which are controlled by
the master are the ‘slaves’ (see Figure 13 ).
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.
19 of 39
相关PDF资料
PDF描述
PCA9633TK,118 IC LED DRIVER RGBA 8-HVSON
P51-2000-A-AD-M12-4.5OVP-000-000 SENSOR 2000PSI 7/16-20UNF 4.5V
P51-75-S-B-P-4.5OVP-000-000 SENSOR 75PSI 1/8-27NPT .5-4.5V
P51-75-S-AA-MD-4.5V-000-000 SENSOR 75PSI 7/16-20 UNF .5-4.5V
VLCF4020T-150MR68 INDUCTOR POWER 15UH .68A SMD
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