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参数资料
| 型号： | CAT3614HV2-GT2 |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DVR CHRGE PUMP 4CH 12TDFN |
| 标准包装： | 2,000 |
| 拓扑： | 线性（LDO），切换式电容器（充电泵） |
| 输出数： | 4 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 800kHz ~ 1.3MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 输出电压： | 7V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 供应商设备封装： | 12-TDFN（3x3） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
CAT3614
Block Diagram
1 m F
C 1 ? C 1+
1 m F
C 2 ?
C 2+
V IN
1x mode (LDO)
V OUT
1.5x Charge Pump
C IN
1 m F
EN/DIM
1 MHz
Oscillator
Mode Control
LED1
LED2
Reference
Voltage
LED3
LED4
Current
Setting DAC
LED Channel
Current Regulators
Serial
Interface
Registers
GND
Figure 27. CAT3614 Functional Block Diagram
Basic Operation
At power ? up, the CAT3614 starts operating in 1x mode
where the output will be approximately equal to the input
supply voltage (less any internal voltage losses). If the
output voltage is sufficient to regulate all LED currents the
device remains in 1x operating mode.
If the input voltage is insufficient or falls to a level where
In 1.5x mode, the output is approximately equal to 1.5
times the input supply voltage (less any internal voltage
losses).
The above sequence is repeated each and every time the
chip is powered ? up or is taken out of shutdown mode (via
EN/DIM pin).
the regulated currents cannot be maintained, the device
automatically switches (after a fixed delay of 400 m s) into
1.5x mode.
http://onsemi.com
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT3614HV2G-T2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT3614HV2-T2 | 功能描述:LED照明驱动器 4-Ch 1-Wire LED 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 |
| CAT3616 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:6-Channel Charge Pump LED Driver with EZDim |
| CAT3616_08 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:6-Channel Charge Pump LED Driver with EZDimTM |
| CAT3616HV4 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:6-Channel Charge Pump LED Driver with EZDimTM |
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