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參數(shù)資料
| 型號： | PCA9531D |
| 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)： | 23/27頁 |
| 文件大?。?/td> | 156K |
| 代理商： | PCA9531D |
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PCA9531_6
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 06 — 19 February 2009
5 of 27
NXP Semiconductors
PCA9531
8-bit I2C-bus LED dimmer
[1]
HVQFN16 package die supply ground is connected to both VSS pin and exposed center pad. VSS pin must
be connected to supply ground for proper device operation. For enhanced thermal, electrical, and board
level performance, the exposed pad needs to be soldered to the board using a corresponding thermal pad
on the board and for proper heat conduction through the board, thermal vias need to be incorporated in the
PCB in the thermal pad region.
6.
Functional description
Refer to Figure 1 “Block diagram of PCA9531”.
6.1 Device address
Following a START condition, the bus master must output the address of the slave it is
accessing. The address of the PCA9531 is shown in Figure 5. To conserve power, no
internal pull-up resistors are incorporated on the hardware selectable address pins and
they must be pulled HIGH or LOW.
The last bit of the address byte denes the operation to be performed. When set to logic 1
a read is selected, while a logic 0 selects a write operation.
VSS
supply ground
LED4
9
7
LED driver 4
LED5
10
8
LED driver 5
LED6
11
9
LED driver 6
LED7
12
10
LED driver 7
RESET
13
11
reset input (active LOW)
SCL
14
12
serial clock line
SDA
15
13
serial data line
VDD
16
14
supply voltage
Table 2.
Pin description …continued
Symbol
Pin
Description
SO16,
TSSOP16
HVQFN16
Fig 5.
PCA9531 slave address
002aac505
1
0
A2
A1
A0 R/W
fixed
slave address
hardware
selectable
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9531PW | 8-bit I2C-bus LED dimmer |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9531D,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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9531D,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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| PCA9531D112 | 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: |
| PCA9531PW | 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
| 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(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N |
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