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| 型号： | PCA9626B,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 24/47页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGBA 48-LQFP |
| 产品培训模块： | LED Controllers I²C Bus Fundamentals |
| 标准包装： | 1 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 24 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | RGBA |
| 频率： | 1MHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 输出电压： | 40V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 844 (CN2011-ZH PDF) |
| 其它名称： | 568-4774-6 |
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NXP Semiconductors
PCA9626
24-bit Fm+ I 2 C-bus 100 mA 40 V LED driver
b. Byte 2 = 5Ah: the PCA9626 acknowledges this value only. If byte 2 is not equal to
5Ah, then the PCA9626 does not acknowledge it.
If more than 2 bytes of data are sent, the PCA9626 does not acknowledge any more.
5. Once the right 2 bytes (SWRST data byte 1 and byte 2 only) have been sent and
correctly acknowledged, the master sends a STOP command to end the
SWRST Call: the PCA9626 then resets to the default value (power-up value) and is
ready to be addressed again within the specified bus free time (t BUF ).
The I 2 C-bus master must interpret a non-acknowledge from the PCA9626 (at any time) as
a ‘SWRST Call Abort’. The PCA9626 does not initiate a reset of its registers. This
happens only when the format of the SWRST Call sequence is not correct.
7.7 Individual brightness control with group dimming/blinking
A 97 kHz fixed frequency signal with programmable duty cycle (8 bits, 256 steps) is used
to control individually the brightness for each LED.
On top of this signal, one of the following signals can be superimposed (this signal can be
applied to the 4 LED outputs):
? A lower 190 Hz fixed frequency signal with programmable duty cycle (8 bits,
256 steps) is used to provide a global brightness control.
? A programmable frequency signal from 24 Hz to 1 ? 10.73 Hz (8 bits, 256 steps) with
programmable duty cycle (8 bits, 256 steps) is used to provide a global blinking
control.
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5
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7
8
9 10 11 12
507
508
509
510
511
512
1
2
3
4
5
6
7
8
9 10 11
Brightness Control signal (LEDn)
N × 40 ns
with N = (0 to 255)
M × 256 × 2 × 40 ns
with M = (0 to 255)
(GRPPWM Register)
(PWMx Register)
256 × 40 ns = 10.24 μ s
(97.6 kHz)
Group Dimming signal
256 × 2 × 256 × 40 ns = 5.24 ms (190.7 Hz)
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
resulting Brightness + Group Dimming signal
002aab417
Minimum pulse width for LEDn Brightness Control is 40 ns.
Minimum pulse width for Group Dimming is 20.48 ? s.
When M = 1 (GRPPWM register value), the resulting LEDn Brightness Control + Group Dimming signal will have 2 pulses of
the LED Brightness Control signal (pulse width = N ? 40 ns, with ‘N’ defined in PWMx register).
This resulting Brightness + Group Dimming signal above shows a resulting Control signal with M = 4 (8 pulses).
Fig 7.
Brightness + Group Dimming signals
PCA9626
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 6 September 2012
? NXP B.V. 2012. All rights reserved.
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相关代理商/技术参数 |
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| PCA9626BS,518 | 功能描述:LED照明驱动器 24-bit Fm+ I2C-bus 100mA 40 V LEDdriver 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 |
| PCA9629APWJ | 功能描述:Bipolar, Unipolar Motor Driver CMOS I2C 16-TSSOP 制造商:nxp semiconductors 系列:- 包装:剪切带（CT） 零件状态:有效 电机类型 - 步进:双极性，单极 电机类型 - AC，DC:- 功能:控制器 - 换向，方向管理 输出配置:前置驱动器 - 半桥（4） 接口:I2C 技术:CMOS 步进分辨率:1 ~ 1/128 应用:通用 电流 - 输出:- 电压 - 电源:4.5 V ~ 5.5 V 电压 - 负载:- 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商器件封装:16-TSSOP 标准包装:1 |
| PCA9629PW,118 | 功能描述:马达/运动/点火控制器和驱动器 I2C-bus Stepper motor controller RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| PCA9629PW118 | 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: |
| PCA9632DP1,118 | 功能描述:LED照明驱动器 4-BIT FM+I2C-BUS 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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