- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄224694 > PCA9551D (NXP Semiconductors N.V.) 8-bit I2C-bus LED driver with programmable blink rates PDF資料下載
參數(shù)資料
| 型號(hào)： | PCA9551D |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | 8-bit I2C-bus LED driver with programmable blink rates |
| 封裝： | PCA9551BS<SOT629-1 (HVQFN16)|<<http://www.nxp.com/packages/SOT629-1.html<1<Always Pb-free,;PCA9551D<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<we |
| 文件頁數(shù)： | 4/26頁 |
| 文件大小： | 155K |
| 代理商： | PCA9551D |
第1頁第2頁第3頁當(dāng)前第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁
PCA9551_8
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 08 — 31 July 2008
12 of 26
NXP Semiconductors
PCA9551
8-bit I2C-bus LED driver with programmable blink rates
8.2 Programming example
The following example will show how to set LED0 to LED3 on. It will then set LED4 and
LED5 to blink at 1 Hz at a 50 % duty cycle. LED6 and LED7 will be set to blink at 4 Hz and
at a 25 % duty cycle.
9.
Limiting values
Table 10.
Programming PCA9551
Program sequence
I2C-bus
START
S
PCA9551 address with A0 to A2 = LOW
C0h
PSC0 subaddress + Auto-Increment
11h
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 = 37
25h
Set PWM0 duty cycle to 50 %:
PWM0 = 128
80h
Set prescaler PSC1 to achieve a period of 0.25 seconds:
PSC1 = 9
09h
Set PWM1 output duty cycle to 25 %:
PWM1 = 192
C0h
Set LED0 to LED3 on
00h
Set LED4 and LED5 to PWM0, and LED6 or LED7 to PWM1
FAh
STOP
P
Blink period
1
PSC0
1
+
38
------------------------
==
256
PWM 0
–
256
--------------------------------
0.5
=
Blink period
0.25
PSC1
1
+
38
------------------------
==
256
PWM 1
–
256
--------------------------------
0.25
=
Table 11.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
Min
Max
Unit
VDD
supply voltage
0.5
+6.0
V
VI/O
voltage on an input/output pin
VSS 0.5
5.5
V
IO(LEDn)
output current on pin LEDn
-
±25
mA
ISS
ground supply current
-
100
mA
Ptot
total power dissipation
-
400
mW
Tstg
storage temperature
65
+150
°C
Tamb
ambient temperature
operating
40
+85
°C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9551PW | 8-bit I2C-bus LED driver with programmable blink rates |
| PCA9552BS | 16-bit I2C-bus LED driver with programmable blink rates |
| PCA9552D | 16-bit I2C-bus LED driver with programmable blink rates |
| PCA9552PW | 16-bit I2C-bus LED driver with programmable blink rates |
| PCA9553D | 4-bit I2C-bus LED driver with programmable blink rates |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9551D,112 | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKER 8BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9551D,118 | 功能描述:LED照明驅(qū)動(dòng)器 8-BIT I2C FM OD LED BLK RST RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9551D-T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit I2C-bus LED driver with programmable blink rates |
| PCA9551PW | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKER 8BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9551PW,112 | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED BLINKER 8BIT RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。