收藏本站
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
8
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
CAT4008W-T2 IC LED DRIVER LINEAR 16-SOIC
CAT4101TV-T75 IC LED DRVR HP CONST CURR D2PAK
CAT4104V-GT3 IC LED DVR 4CH 175MA 8SOIC
CAT4106YP-T2 IC LED DVR 4CH BOOST 16TSSOP
CAT4109V-GT2 IC LED DRIVER RGB 16-SOIC
CAT4134HV2-T2 IC LED DRVR BKLGHT FLASH 12-TDFN
CAT4137TD-T3 IC LED DRVR WHITE BCKLGHT TSOT-5
CAT4139TD-GT3 IC LED DRVR WHITE BCKLGT TSOT-5
相关代理商/技术参数
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
CAT4008Y-T2 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
CAT4016 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:16-Channel Constant Current LED Driver
CAT4016_08 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:16-Channel Constant Current LED Driver