5秒后页面跳转
捷配首页

Datasheet > 驱动程序和接口 > 显示驱动器> CAT4002BTD-GT3
CAT4002BTD-GT3 PDF预览

CAT4002BTD-GT3

更新时间： 2024-01-05 01:41:58
品牌 Logo 应用领域
安森美 - ONSEMI 显示驱动器驱动程序和接口接口集成电路光电二极管
页数 文件大小 规格书
11页 173K
描述
Constant Current Programmable LED Driver with 32 Dimming Levels

阅读下载

获取价格

CAT4002BTD-GT3 技术参数

生命周期：Obsolete零件包装代码：TSSOP
包装说明：VSSOP,针数：6
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.8Is Samacsys：N
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PDSO-G6
JESD-609代码：e4长度：2.9 mm
复用显示功能：NO功能数量：1
区段数：2端子数量：6
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
认证状态：Not Qualified座面最大高度：1 mm
最大供电电压：5.5 V最小供电电压：2.4 V
标称供电电压：4 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：NICKEL PALLADIUM GOLD
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL宽度：1.6 mm
Base Number Matches：1

CAT4002BTD-GT3 数据手册

 浏览型号CAT4002BTD-GT3的Datasheet PDF文件第4页浏览型号CAT4002BTD-GT3的Datasheet PDF文件第5页浏览型号CAT4002BTD-GT3的Datasheet PDF文件第6页浏览型号CAT4002BTD-GT3的Datasheet PDF文件第8页浏览型号CAT4002BTD-GT3的Datasheet PDF文件第9页浏览型号CAT4002BTD-GT3的Datasheet PDF文件第10页 
CAT4002B, CAT4003B, CAT4004B  
Pin Functions  
into “zero current” shutdown mode, the EN/DIM pin must  
be held low for 3 ms typical  
VIN is the supply pin for the charge pump. A small 1 mF  
ceramic bypass capacitor is required between the VIN pin  
and ground near the device. The operating input voltage  
range is from 2.4 V to 5.5 V. Whenever the input supply falls  
below the under−voltage threshold (2.0 V), all the LED  
channels are disabled and the device enters shutdown mode.  
LED1 to LED4 provide the internal regulated current for  
each of the LED cathodes. There pins enter a high  
impedance zero current state whenver the device is placed  
in shutdown mode.  
GND is the ground reference for the device. The pin must be  
EN/DIM is the enable and one wire dimming input for all  
LED channels. Levels of logic high and logic low are set at  
1.3 V and 0.4 V respectively. When EN/DIM is initially  
taken high, the CAT400XB becomes enabled and all LED  
currents are set to the full scale 25 mA. To place the device  
connected to the ground plane on the PCB.  
TAB (CAT4004B only) is the exposed pad underneath the  
package. For best thermal performance, the tab should be  
soldered to the PCB and connected to the ground plane.  
V
IN  
Undervoltage  
Lockout  
VIN  
Reference  
Voltage  
Current  
Setting DAC  
4 Current Sink  
Regulators  
Serial  
Interface  
Register  
EN/DIM  
100 kΩ  
GND  
Figure 12. CAT4004B Functional Block Diagram  
Basic Operation  
The CAT400XB uses tightly matched current sinks to  
accurately regulate LED current in each channel.  
The full scale current is calculated from the above formula  
with n equal to zero.  
The EN/DIM pin has two primary functions. One function  
enables and disables the device. The other function is LED  
current dimming with 32 different levels by pulsing the input  
signal, as shown on Figure 13. On each consecutive pulse  
rising edge, the LED current is decreased by about 3.2%  
(1/31th of the full scale value). After 30 pulses, the LED  
There are 32 different settings for LED brightness that can  
be programmed through the EN/DIM pin. 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 75 mV headroom  
to sink a constant regulated current of 20 mA. If the input  
supply falls below 2.0 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.  
st  
current is 3.2% of the full scale current. On the 31 pulse, the  
current drops to zero, and then goes back to full scale on the  
following pulse.  
Each pulse width should be between 200 ns and 100 ms.  
Pulses faster than the minimum TLO may be ignored and  
filtered by the device. Pulses longer than the maximum TLO  
may shutdown the device. By pulsing the EN/DIM signal at  
high frequency, the LED current can quickly be set to zero.  
The LED driver enters a “zero current” shutdown mode if  
EN/DIM is held low for 3 ms typical.  
CAT400XB LED Current Selection  
After power−up and once enabled, the LED current is set  
initially to the full scale currrent of 25 mA. The number of  
pulses (n) on the EN/DIM input does decrease the current  
value as follows:  
The dimming level is set by the number of pulses on the  
EN/DIM after the power−up, as shown in Table 6.  
31 * n  
31  
ǒ
Ǔ
LED current [mA] + 25   
http://onsemi.com  
7
1...4567891011

下载PDF

与CAT4002BTD-GT3相关器件

型号 品牌 描述 获取价格 数据表
CAT4003B ONSEMI Constant Current Programmable LED Driver

获取价格
CAT4003B_12 ONSEMI Constant Current Programmable LED Driver

获取价格
CAT4003BSD-GT3 ONSEMI Constant Current Programmable LED Driver with 32 Dimming Levels

获取价格
CAT4003BTD-GT3 ONSEMI Constant Current Programmable LED Driver with 32 Dimming Levels

获取价格
CAT4003BTS-T3 ONSEMI Constant Current Programmable LED Driver

获取价格
CAT4004 ONSEMI 4-Channel Constant Current LED Driver with EZDim

获取价格

与CAT4002BTD-GT3相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证