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參數資料
| 型號： | PCA9533DP |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | LED驅動器 |
| 英文描述： | 4-bit I2C-bus LED dimmer |
| 封裝： | PCA9533D/01<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 5, 2005,;PCA9533D/01<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 5, |
| 文件頁數： | 21/24頁 |
| 文件大?。?/td> | 140K |
| 代理商： | PCA9533DP |
PCA9533_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
6 of 24
NXP Semiconductors
PCA9533
4-bit I2C-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.
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.
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 8.
PSC1 - Frequency Prescaler 1 register description
Bit
7
6
5
4
3
2
1
0
Symbol
PSC1[7]
PSC1[6]
PSC1[5]
PSC1[4]
PSC1[3]
PSC1[2]
PSC1[1]
PSC1[0]
Default
00000000
Table 9.
PWM1 - Pulse Width Modulation 1 register description
Bit
7
6
5
4
3
2
1
0
Symbol
PWM1
[7]
PWM1
[6]
PWM1
[5]
PWM1
[4]
PWM1
[3]
PWM1
[2]
PWM1
[1]
PWM1
[0]
Default
10000000
Table 10.
LS0 - LED selector register bit description
Legend: * default value.
Register
Bit
Value
Description
LS0
7:6
00*
LED3 selected
5:4
00*
LED2 selected
3:2
00*
LED1 selected
1:0
00*
LED0 selected
相關PDF資料 |
PDF描述 |
|---|---|
| PCA9550D | 2-bit I2C-bus LED driver with programmable blink rates |
| PCA9550DP | 2-bit I2C-bus LED driver with programmable blink rates |
| PCA9551BS | 8-bit I2C-bus LED driver with programmable blink rates |
| PCA9551D | 8-bit I2C-bus LED driver with programmable blink rates |
| PCA9551PW | 8-bit I2C-bus LED driver with programmable blink rates |
相關代理商/技術參數 |
參數描述 |
|---|---|
| PCA9533DP/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer |
| PCA9533DP/01,118 | 功能描述:LED照明驅動器 I2C LED DIMMER 4BIT 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9533DP/02 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer |
| PCA9533DP/02,118 | 功能描述:LED照明驅動器 4-BIT I2C-BUS LED DIMMER 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9533DP01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C LED dimmer |
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