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NCV47721 PDF预览

NCV47721

更新时间： 2024-11-24 01:16:07
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
16页 152K
描述
Adjustable LDO with Adjustable Current Limit

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NCV47721 数据手册

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NCV47721  
3.3 V to 20 V Adjustable LDO  
with Adjustable Current Limit  
and Diagnostic Features  
The NCV47721 LDO regulator with 200 mA output current is  
designed for use in harsh automotive environments. The device has a  
high peak input voltage tolerance and reverse input voltage, reverse  
bias, overcurrent and overtemperature protections. The integrated  
current sense feature (adjustable by resistor connected to CSO pin)  
provides diagnosis and system protection functionality. The CSO pin  
output current creates voltage drop across CSO resistor which is  
proportional to output current. Extended diagnostic features in OFF  
state are also available and controlled by dedicated input and output  
pins.  
www.onsemi.com  
MARKING  
DIAGRAM  
14  
NCV4  
7721  
ALYWG  
G
TSSOP−14  
Exposed Pad  
CASE 948AW  
14  
1
1
Features  
• Adjustable Output: 3.3 V to 20 V 3% Output Voltage  
• Output Current: up to 200 mA  
47721 = Specific Device Code  
A
L
= Assembly Location  
= Wafer Lot  
• Enable Input (3.3 V Logic Compatible)  
• Adjustable Current Limit: up to 300 mA  
Y
W
G
= Year  
= Work Week  
= Pb−Free Package  
• Protection Features:  
(Note: Microdot may be in either location)  
♦ Current Limitation  
♦ Thermal Shutdown  
♦ Reverse Input Voltage and Reverse Bias Voltage  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 14 of this data sheet.  
• Diagnostic Features:  
♦ Short To Battery (STB) and Open Load (OL) in OFF State  
♦ Internal Components for OFF State Diagnostics  
♦ Open Collector Flag Output  
• AEC−Q100 Grade 1 Qualified and PPAP Capable  
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS  
Compliant  
Typical Applications  
• Audio and Infotainment System  
• Active Safety System  
Vout  
Vin  
Cin  
R1  
Cb*  
1 µF  
Cout  
ADJ  
CSO  
EN  
DE  
10 mF  
To A /D  
NCV47721  
CCSO  
R CSO  
R2  
1 µF  
Diagnostic Enable Input  
Error Flag Output (Open Collector)  
EF  
GND  
Cb  
*
- is optional for stability with ceramic output capacitor  
Figure 1. Application Schematic  
© Semiconductor Components Industries, LLC, 2015  
1
Publication Order Number:  
April, 2017 − Rev. 1  
NCV47721/D  
 
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