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参数资料
| 型号： | PCA9624PW,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 14/37页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER RGBA 24-TSSOP |
| 标准包装： | 2,500 |
| 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： | RGBA |
| 频率： | 100kHz ~ 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： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
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NXP Semiconductors
PCA9624
8-bit Fm+ I 2 C-bus 100 mA 40 V LED driver
b. Byte 2 = 5Ah: the PCA9624 acknowledges this value only. If byte 2 is not equal to
5Ah, then the PCA9624 does not acknowledge it.
If more than 2 bytes of data are sent, the PCA9624 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 PCA9624 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 PCA9624 (at any time) as
a ‘SWRST Call Abort’. The PCA9624 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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2
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4
5
6
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
PCA9624
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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| PCA9625D | 功能描述:LED照明驱动器 16BT I2C FMTP LED HVCON RST OE 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 |
| PCA9625D,512 | 功能描述:LED照明驱动器 16BT I2C FMTP LED HVCON RST OE 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 |
| PCA9625D,518 | 功能描述:LED照明驱动器 16-bit Fm I2C Bus 100mA 24 V LED drivr 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 |
| PCA9625D/S911,518 | 功能描述:LED照明驱动器 16BT I2C FMTP LED HVCON RST OE 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 |
| PCA9625D/S911-T | 功能描述:LED照明驱动器 16BT I2C FMTP LED HVCON RST OE 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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