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参数资料
| 型号： | PCA9551BS,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 10/26页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER BLINKER 16-HVQFN |
| 产品培训模块： | LED Controllers I²C Bus Fundamentals |
| 标准包装： | 1 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 8 |
| 内部驱动器： | 是 |
| 类型 - 主要： | LED 闪烁器 |
| 频率： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 供应商设备封装： | 16-HVQFN |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 844 (CN2011-ZH PDF) |
| 配用： | 568-4002-ND - DEMO BOARD I2C 568-3615-ND - DEMO BOARD I2C |
| 其它名称： | 568-3388-6 |
NXP Semiconductors
PCA9551
8-bit I 2 C-bus LED driver with programmable blink rates
7.4 Bus transactions
SCL
1
2
3
4
5
6
7
8
9
slave address
command byte
data to register
SDA S
1
1
0
0 A2 A1 A0 0
A
0
0
0
AI
0 B2 B1 B0 A
DATA 1
A
START condition
R/W
acknowledge
from slave
acknowledge
from slave
acknowledge
from slave
write to register
t v(Q)
data out from port
DATA 1 VALID
002aac507
Fig 11. Write to register
slave address
command byte
SDA S
1
1
0
0 A2 A1 A0 0
A
0
0
0
AI
0 B2 B1 B0 A
(cont.)
START condition
R/W
acknowledge
from slave
acknowledge
from slave
slave address
data from register
data from register
(cont.) S
1
1
0
0 A2 A1 A0 1
A
DATA (first byte)
A
DATA (last byte)
NA P
Auto-Increment
(repeated)
START condition
R/W
acknowledge
register address
if AI = 1
acknowledge
from master
no acknowledge
from master
STOP
condition
from slave
at this moment master-transmitter becomes master-receiver
and slave-receiver becomes slave-transmitter
002aac508
Fig 12. Read from register
no acknowledge
from master
slave address
data from port
data from port
SDA S
1
1
0
0 A2 A1 A0 1
A
DATA 1
A
DATA 4
NA P
START condition
R/W
acknowledge
from slave
acknowledge
from master
STOP
condition
read from
port
t h(D)
t su(D)
data into
port
DATA 2
DATA 3
DATA 4
002aac509
Remark: This ?gure assumes the command byte has previously been programmed with 00h.
Fig 13. Read Input Port register
PCA9551_8
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 08 — 31 July 2008
10 of 26
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9551BSHP | 功能描述:LED照明驱动器 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 |
| PCA9551BS-T | 功能描述:LED照明驱动器 8-BIT I2C FM OD LED BLK RST 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 |
| PCA9551D | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit I2C LED driver with programmable blink rates |
| PCA9551D,112 | 功能描述:LED照明驱动器 I2C LED BLINKER 8BIT 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 |
| PCA9551D,118 | 功能描述:LED照明驱动器 8-BIT I2C FM OD LED BLK RST 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 |
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