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參數(shù)資料
| 型號： | PCA9531PW |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | LED驅(qū)動器 |
| 英文描述： | 8-bit I2C-bus LED dimmer |
| 封裝： | PCA9531BS<SOT629-1 (HVQFN16)|<<http://www.nxp.com/packages/SOT629-1.html<1<Always Pb-free,;PCA9531D<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<we |
| 文件頁數(shù)： | 25/27頁 |
| 文件大小： | 156K |
| 代理商： | PCA9531PW |
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PCA9531_6
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 06 — 19 February 2009
7 of 27
NXP Semiconductors
PCA9531
8-bit I2C-bus LED dimmer
6.3.2 PCS0 - Frequency Prescaler 0
PSC0 is used to program the period of the PWM output.
The period of BLINK0 = (PSC0 + 1) / 152.
6.3.3 PWM0 - Pulse Width Modulation 0
The PWM0 register determines the duty cycle of BLINK0. The outputs are LOW (LED on)
when the count is less than the value in PWM0 and HIGH (LED off) when it is greater. If
PWM0 is programmed with 00h, then the PWM0 output is always HIGH (LED off).
The duty cycle of BLINK0 = PWM0 / 256.
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.
Table 5.
PSC0 - Frequency Prescaler 0 register description
Bit
7
6
5
4
3
2
1
0
Symbol
PSC0[7]
PSC0[6]
PSC0[5]
PSC0[4]
PSC0[3]
PSC0[2]
PSC0[1]
PSC0[0]
Default
11111111
Table 6.
PWM0 - Pulse Width Modulation 0 register description
Bit
7
6
5
4
3
2
1
0
Symbol
PWM0
[7]
PWM0
[6]
PWM0
[5]
PWM0
[4]
PWM0
[3]
PWM0
[2]
PWM0
[1]
PWM0
[0]
Default
10000000
Table 7.
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 8.
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
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| PCA9532BS | 16-bit I2C-bus LED dimmer |
| PCA9532D | 16-bit I2C-bus LED dimmer |
| PCA9532PW | 16-bit I2C-bus LED dimmer |
| PCA9533D | 4-bit I2C-bus LED dimmer |
| PCA9533DP | 4-bit I2C-bus LED dimmer |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9531PW,112 | 功能描述:LED照明驅(qū)動器 8-BIT I2C FM OD LED 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 |
| PCA9531PW,118 | 功能描述:LED照明驅(qū)動器 8-BIT I2C FM OD LED DIM 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: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9532 | 制造商:NXP Semiconductors 功能描述:IC ((NW)) |
| PCA9532BS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:16-bit I2C-bus LED dimmer |
| PCA9532BS,118 | 功能描述:LED照明驅(qū)動器 I2C LED DIMMER 16BIT 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 |
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