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| 型号： | PCA9533DP/02,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGB 8-TSSOP |
| 标准包装： | 1 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | RGB |
| 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-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 配用： | 568-4003-ND - DEMO BOARD LED DIMMER 568-3512-ND - DEMO BOARD UART TO I2C |
| 其它名称： | 568-3375-6 |
NXP Semiconductors
PCA9533
4-bit I 2 C-bus LED dimmer
6.3.4 PCS1 - Frequency Prescaler 1
PSC1 is used to program the period of the PWM output.
The period of BLINK1 = (PSC1 + 1) / 152.
Table 8.
PSC1 - Frequency Prescaler 1 register description
Bit
Symbol
Default
7
PSC1[7]
0
6
PSC1[6]
0
5
PSC1[5]
0
4
PSC1[4]
0
3
PSC1[3]
0
2
PSC1[2]
0
1
PSC1[1]
0
0
PSC1[0]
0
6.3.5 PWM1 - Pulse Width Modulation 1
The PWM1 register determines the duty cycle of BLINK1. The outputs are LOW (LED on)
when the count is less than the value in PWM1 and HIGH (LED off) when it is greater. If
PWM1 is programmed with 00h, then the PWM1 output is always HIGH (LED off).
The duty cycle of BLINK1 = PWM1 / 256.
Table 9.
PWM1 - Pulse Width Modulation 1 register description
Bit
Symbol
Default
7
PWM1
[7]
1
6
PWM1
[6]
0
5
PWM1
[5]
0
4
PWM1
[4]
0
3
PWM1
[3]
0
2
PWM1
[2]
0
1
PWM1
[1]
0
0
PWM1
[0]
0
6.3.6 LS0 - LED selector
The LSn LED selector register determines the source of the LED data.
00 = output is set high-impedance (LED off; default)
01 = output is set LOW (LED on)
10 = output blinks at PWM0 rate
11 = output blinks at PWM1 rate
Table 10. LS0 - LED selector register bit description
Legend: * default value.
PCA9533_3
Register
LS0
Bit
7:6
5:4
3:2
1:0
Value
00*
00*
00*
00*
Description
LED3 selected
LED2 selected
LED1 selected
LED0 selected
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
6 of 24
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| PCA9534 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit I2C and SMBus, low power I/O port with interrupt |
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