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参数资料
| 型号： | PCA9531PW,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 6/27页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGB 16-TSSOP |
| 产品培训模块： | LED Controllers |
| 标准包装： | 96 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 8 |
| 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： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 825 (CN2011-ZH PDF) |
| 配用： | 568-4003-ND - DEMO BOARD LED DIMMER 568-3615-ND - DEMO BOARD I2C |
| 其它名称： | 568-3370-5 935274729112 PCA9531PW |
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NXP Semiconductors
PCA9531
8-bit I 2 C-bus LED dimmer
6.2 Control register
Following the successful acknowledgement of the slave address, the bus master will send
a byte to the PCA9531, which will be stored in the Control register.
0
0
0
AI
0
B2
B1
B0
Auto-Increment flag
register address
002aac506
Reset state: 00h
Fig 6.
Control register
The lowest 3 bits are used as a pointer to determine which register will be accessed.
If the Auto-Increment ?ag is set, the three low order bits of the Control register are
automatically incremented after a read or write. This allows the user to program the
registers sequentially. The contents of these bits will rollover to ‘000’ after the last register
is accessed.
When Auto-Increment ?ag is set (AI = 1) and a read sequence is initiated, the sequence
must start by reading a register different from the Input register (B2 B1 B0 ≠ 0 0 0).
Only the 3 least signi?cant bits are affected by the AI ?ag. Unused bits must be
programmed with zeroes.
6.2.1 Control register de?nition
Table 3.
Register summary
B2
0
0
0
0
1
1
1
B1
0
0
1
1
0
0
1
B0
0
1
0
1
0
1
0
Symbol
INPUT
PSC0
PWM0
PSC1
PWM1
LS0
LS1
Access
read only
read/write
read/write
read/write
read/write
read/write
read/write
Description
input register
frequency prescaler 0
PWM register 0
frequency prescaler 1
PWM register 1
LED0 to LED3 selector
LED4 to LED7 selector
6.3 Register descriptions
6.3.1 INPUT - Input register
The INPUT register re?ects the state of the device pins. Writes to this register will be
acknowledged but will have no effect.
Table 4.
INPUT - Input register description
Bit
Symbol
Default
7
LED7
X
6
LED6
X
5
LED5
X
4
LED4
X
3
LED3
X
2
LED2
X
1
LED1
X
0
LED0
X
Remark: The default value ‘X’ is determined by the externally applied logic level (normally
logic 1) when used for directly driving LED with pull-up to V DD .
PCA9531_6
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 06 — 19 February 2009
6 of 27
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9532 | 制造商:NXP Semiconductors 功能描述:IC ((NW)) |
| PCA9532BS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:16-bit I2C-bus LED dimmer |
| PCA9532BS,118 | 功能描述:LED照明驱动器 I2C LED DIMMER 16BIT 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 |
| PCA9532BS-T | 功能描述:LED照明驱动器 I2C LED DIMMER 16BIT 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 |
| PCA9532D | 功能描述:LED照明驱动器 I2C LED DIMMER 16BIT 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 |
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