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参数资料
| 型号： | PCA9553D/01,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 12/26页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 8-SOIC |
| 标准包装： | 2,500 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 4 |
| 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： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 935272825118 PCA9553D/01-T PCA9553D/01-T-ND |
NXP Semiconductors
PCA9553
4-bit I 2 C-bus LED driver with programmable blink rates
V DD
3.3 V
5V
V DD
LED
100 k ?
V DD
LED
LEDn
002aac189
Fig 16. High value resistor in parallel with
LEDn
002aac190
Fig 17. Device supplied by a lower voltage
the LED
9.2 Programming example
The following example shows how to set LED0 and LED1 off. It will then set LED2 to blink
at 1 Hz, 50 % duty cycle. LED3 will be set to blink at 4 Hz, 25 % duty cycle. PCA9553/01
is used in this example.
Table 11.
Programming PCA9553
Program sequence
START
PCA9553 address
PSC0 subaddress + Auto-Increment
Set prescaler PSC0 to achieve a period of 1 second:
PSC0 + 1
Blink period = 1 = ------------------------
44
PSC0 = 43
Set PWM0 duty cycle to 50 %:
256 – PWM0
-------------------------------- = 0.5
256
PWM0 = 128
Set prescaler PSC1 to achieve a period of 0.25 seconds:
PSC1 + 1
Blink period = 0.25 = ------------------------
44
PSC1 = 10
Set PWM1 output duty cycle to 25 %:
256 – PWM1
-------------------------------- = 0.25
256
PWM1 = 192
Set LED0 on, LED1 off, LED2 set to blink at PSC0, PWM0, LED3 set to blink at
PSC1, PWM1
I 2 C-bus
S
C4h
11h
2Bh
80h
0Ah
C0h
E4h
PCA9553_6
STOP
P
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 29 December 2008
12 of 26
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9553D02 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED driver with programmable blink rates |
| PCA9553DP | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED driver with programmable blink rates |
| PCA9553DP/01 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C-bus LED driver with programmable blink rates |
| PCA9553DP/01,118 | 功能描述:LED照明驱动器 4BIT I2C FM OD LED BLK 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 |
| PCA9553DP/01118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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