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ZLED7022ZI1R

更新时间： 2024-11-24 01:10:51
品牌 Logo 应用领域
艾迪悌 - IDT /
页数 文件大小 规格书
14页 294K
描述
Low-Voltage Six-Channel LED Driver

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中文翻译

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ZLED7022ZI1R 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：VFQFPN
包装说明：,针数：12
Reach Compliance Code：compliant风险等级：5.84
JESD-609代码：e3湿度敏感等级：3
峰值回流温度（摄氏度）：260端子面层：Tin (Sn)
处于峰值回流温度下的最长时间：NOT SPECIFIEDBase Number Matches：1

ZLED7022ZI1R 数据手册

 浏览型号ZLED7022ZI1R的Datasheet PDF文件第2页浏览型号ZLED7022ZI1R的Datasheet PDF文件第3页浏览型号ZLED7022ZI1R的Datasheet PDF文件第4页浏览型号ZLED7022ZI1R的Datasheet PDF文件第5页浏览型号ZLED7022ZI1R的Datasheet PDF文件第6页浏览型号ZLED7022ZI1R的Datasheet PDF文件第7页 
ZLED7022  
Low-Voltage Six-Channel  
LED Driver  
Datasheet  
Brief Description  
Benefits  
The ZLED7022, one of our ZLED family of LED control  
ICs, is a low-noise, constant-frequency charge pump  
DC/DC converter that can drive up to six LED channels,  
providing a programmable constant current level ranging  
from 1.8mA to 20mA per LED channel. It can also drive  
higher current LEDs because its current sinks can  
operate in parallel. It enables white or other color LED  
applications that require uniform intensity and/or linear  
progressions in brightness. Capable of operating effi-  
ciently with DC voltage supplies ranging from 2.8V to  
5.5V, it is ideal for small, battery-powered applications  
because very few external components are needed:  
typically one small-dimension 1μF capacitor across the  
C+ and C- pins and two small-dimension 2.2μF capaci-  
tors to GND from the VCC and Vout pins.  
• Current matching accuracy: ±0.9% (typical)  
• One-pin on/off or brightness control for up to six  
LEDs via a simple PCC serial interface—no pulse-  
width modulation or additional control circuit needed  
• 14 programmable current levels for achieving real-  
time control of effects such as LED fade-out or  
sudden changes in brightness  
• Low EMI and back-injected noise because the  
charge pump is not inductor-based  
• Very few external components needed for operation  
• Flexible design enables diverse LED applications: up  
to 20mA per channel  
• LED driver family concept with low-voltage  
four-channel LED driver ZLED7012  
The ZLED7022’s Pulse Count Control (PCC) serial digi-  
tal input is used to enable/disable the LEDs and set the  
current level (14 settings using a nearly logarithmic  
scale to provide a linear brightness progression). This  
simple, high-speed interface allows efficient real-time  
management of LEDs via microcontrollers or control  
systems.  
Available Support  
•
Evaluation Kit  
The ZLED7022’s features include integrated soft-start  
circuitry to protect against excessive in-rush current dur-  
ing power-on and a low-current shutdown mode that  
reduces quiescent current consumption to approximately  
1μA (typical) by disconnecting the load from the input  
when the EN/SET pin is low for a specified time.  
Physical Characteristics  
• Voltage supply: 2.8V to 5.5V DC  
• Operating temperature: -40°C to 85°C  
• Small footprint 12-pin UTQFN package (2mm×2mm)  
Features  
• Low quiescent current in low-current shutdown  
mode: 1μA typical; <2μA maximum  
• Integrated thermal shutdown protection prevents  
damage by shutting down the ZLED7022 if the die  
junction temperature exceeds 160°C (typical)  
ZLED7022 Application Circuit  
• Fixed charge pump switching frequency: 1MHz (typ.)  
• Soft-start feature protects against excessive  
inrush current during power-on  
1μF  
Cpump  
C+  
C-  
.
2.8V to 5.5V  
Vout  
VCC  
Cin  
2.2μF  
Cout  
2.2μF  
ZLED7022  
GND  
D0  
D1  
D2  
D3  
D4  
D5  
EN/SET  
1
2
n<=14  
© 2016 Integrated Device Technology, Inc.  
1
April 20, 2016  
1234567...14

中文翻译

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