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GCM188R71H224KA64D

更新时间: 2024-09-17 02:51:11
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安森美 - ONSEMI /
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17页 1663K
描述
NCV97311A Evaluation Board Users Manual

GCM188R71H224KA64D 数据手册

 浏览型号GCM188R71H224KA64D的Datasheet PDF文件第2页浏览型号GCM188R71H224KA64D的Datasheet PDF文件第3页浏览型号GCM188R71H224KA64D的Datasheet PDF文件第4页浏览型号GCM188R71H224KA64D的Datasheet PDF文件第5页浏览型号GCM188R71H224KA64D的Datasheet PDF文件第6页浏览型号GCM188R71H224KA64D的Datasheet PDF文件第7页 
NCV97311MW50AGEVB  
NCV97311A Evaluation  
Board User'sꢀManual  
Description  
The NCV97311A is 3output regulator consisting of a lowIq  
batteryconnected 3 A 2 MHz nonsynchronous switcher and two  
lowvoltage 1.5 A 2 MHz synchronous switchers; all using integrated  
power transistors.  
The highvoltage switcher is capable of converting a 4.1 V to 18 V  
battery input to a 5 V output at a constant 2 MHz switching frequency,  
delivering up to 3 A. In overvoltage conditions up to 36 V, the  
switching frequency folds back to 1 MHz; in load dump conditions up  
to 45 V the regulator shuts down.  
www.onsemi.com  
EVAL BOARD USER’S MANUAL  
The output of the batteryconnected buck regulator serves as the low  
voltage input for the 2 synchronous switchers. Each downstream output  
is adjustable from 1.2 V to 3.3 V, with a 1.5 A current limit and  
a constant 2 MHz switching frequency. Each switcher has  
independent enable and reset pins, giving extra power management  
flexibility.  
For lowIq operating mode the lowvoltage switchers are disabled,  
and the standby rail is supplied by a lowIq LDO (up to 150 mA) with  
a typical Iq of 30 mA. The LDO regulator is in parallel to the  
highvoltage switcher, and is activated when the switcher is forced in  
standby mode.  
All 3 SMPS outputs use peak current mode control with internal  
slope compensation, internallyset softstart, battery undervoltage  
lockout, battery overvoltage protection, cyclebycycle current  
limiting, hiccup mode shortcircuit protection and thermal shutdown.  
An error flag is available for diagnostics.  
Figure 1. Evaluation Board Photo  
Key Features  
Low Quiescent Current in Standby Mode  
2 Microcontroller Enabled Low Voltage Synchronous Buck  
Converters  
Large Conversion Ratio of 18 V to 3.3 V Battery Connected  
Switcher  
Wide Input of 4.1 to 45 V with Undervoltage Lockout (UVLO)  
Fixed Frequency Operation Adjustable from 2.0 to 2.6 MHz  
Internal 1.5 ms Softstarts  
Cyclebycycle Current Limit Protections  
Hiccup Overcurrent Protections (OCP)  
Individual Reset Pins with Adjustable Delays  
These Devices are PbFree, Halogen Free/BFR Free  
and are RoHS Compliant  
Typical Applications  
Infotainment, Body Electronics, Telematics, ECU  
© Semiconductor Components Industries, LLC, 2019  
1
Publication Order Number:  
April, 2019 Rev. 0  
EVBUM2621/D  

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