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参数资料
| 型号： | CAT4004VP2-T3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 8-TDFN |
| 标准包装： | 1 |
| 恒定电流： | 是 |
| 拓扑： | 线性（LDO） |
| 输出数： | 4 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光 |
| 电源电压： | 2.4 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN（2x3） |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 805 (CN2011-ZH PDF) |
| 其它名称： | CAT4004VP2-T3DKR |
CAT4004
Block Diagram
V IN
VIN
RSET
Undervoltage
Lockout
Reference
Voltage
Current
Setting DAC
EN/DIM
Serial
Interface
Register
4 Current Sink
Regulators
100 k W
GND
Figure 17. CAT4004 Functional Block Diagram
Basic Operation
I LED + GAIN
The CAT4004 uses four tightly matched current sinks to
accurately regulate LED current in each channel
proportional to the current sourced from the RSET pin.
0.6 V
R SET
There are six different gain settings for LED brightness
that can be set through the EN/DIM pin. The default gain on
power ? up is 132. Tight current regulation for all channels is
possible over a wide range of input and LED voltages due to
independent current sensing circuitry on each channel.
Each LED channel needs a minimum of 150 mV
headroom to sink constant regulated current. If the input
supply falls below 1.8 V, the under ? voltage lockout circuit
disables all LED channels and resets the circuit to default
values. Any unused LED channels should be left open.
http://onsemi.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT4008 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:8-Channel Constant Current LED Driver |
| CAT4008V-T1 | 功能描述:LED照明驱动器 LED Driver 8 Chan 4-wire I/F 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 |
| CAT4008W-T2 | 功能描述:LED照明驱动器 8-Ch Linear 4-Wire 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 |
| CAT4008Y | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT4008Y-GT2 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:8-Channel Constant Current LED Driver |
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