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参数资料
| 型号： | CAT3636HV3-GT2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/14页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR 6CH QUAD MODE 16TQFN |
| 标准包装： | 2,000 |
| 系列： | QUAD-Mode® |
| 拓扑： | 线性（LDO），切换式电容器（充电泵） |
| 输出数： | 6 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 600kHz ~ 1.4MHz |
| 电源电压： | 2.5 V ~ 5.5 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
CAT3636
LED Current Setting
The current in each of the six LED channels is
programmed through the 1 ? wire EN/SET digital control
input. By pulsing this signal according to a specific protocol,
a set of internal registers can be addressed and written into
allowing to configure each bank of LEDs with the desired
current. There are six registers: the first five are 4 bits long
and the sixth is 1 bit long. The registers are programmed by
first selecting the register address and then programming
data into that register.
An internal counter records the number of falling edges to
identify the address and data. The address is serially
programmed adhering to low and high duration time delays.
One down pulse corresponds to register 1 being selected.
Two down pulses correspond to register 2 being selected and
so on up to register 6. T LO and T HI must be within 200 ns to
100 m s. Anything below 200 ns may be ignored.
Once the final rising edge of the address pointer is
programmed, the user must wait 500 m s to 1000 m s before
programming the first data pulse falling edge. If the falling
edge of the data is not received within 1000 m s, the device
will revert back to waiting for an address.
Data in a register is reset once it is selected by the address
pointer. If a register is selected but no data is programmed,
then the register value is reset back to its initial default value
with all data bits to 0.
Once the final rising edge of the data pulses is
programmed, the user must wait 1.5 ms before
programming another address. If programming fails or is
interrupted, the user must wait T RESETDELAY 2 ms from the
last rising edge before reprogramming can commence.
Upon power ? up, the device automatically starts looking
for an address. The device requires a minimum 10 m s delay
(T SETUP ) to ensure the initialization of the internal logic at
power ? up. After this time delay, the device registers may be
programmed adhering to the timing constraints shown in
Figure 21. If no falling edge is detected within 100 m s of
power ? up, then the user must wait 2 ms before trying to
program the device again.
To power ? down the device and turn ? off all current
sources, the EN/SET input should be kept low for a duration
T OFF of 1.5 ms or more. The driver typically powers ? down
with a delay of about 1 ms. All register data are lost.
Figure 21. EN/SET One Wire Addressable Timing Diagram
http://onsemi.com
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相关PDF资料 |
PDF描述 |
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| CAT3643HV2-T2 | IC LED DRVR WHITE BCKLGT 12-TDFN |
| CAT3644HV3-GT2 | IC LED DVR 4CH QUAD MODE 16TQFN |
| CAT3647HV3-GT2 | IC LED DRVR WHITE BCKLGT 16-TQFN |
| CAT3648HV3-GT2 | IC LED DRVR WHITE BCKLGT 16-TQFN |
| CAT3661HV3-GT2 | IC LED DRVR WHT BCKLGHT 16TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT3636HV3T | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:6-Channel Quad-ModeTM Fractional LED Driver in TQFN3x3 |
| CAT3636HV3-T2 | 功能描述:LED照明驱动器 6-Channel Quad-Mode 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 |
| CAT3637 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:6-Channel Programmable High Efficiency Quad-Mode⑩ LED Driver |
| CAT3637AEVB | 功能描述:电源管理IC开发工具 EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| CAT3637HV3-GT2 | 功能描述:LED照明驱动器 Hi Eff Quad Mode LED Driver 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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