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NCV4390DR2G

更新时间： 2024-11-27 11:13:23
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
30页 762K
描述
Automotive Advanced Secondary Side LLC Resonant Converter Controller with Synchronous Rectifier Control

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NCV4390DR2G 数据手册

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DATA SHEET  
www.onsemi.com  
Automotive Advanced  
Secondary Side LLC  
Resonant Converter Controller  
with Synchronous Rectifier  
Control  
SOIC−16  
CASE 751B−05  
MARKING DIAGRAM  
NCV4390  
NCV4390  
The NCV4390 is an advanced Pulse Frequency Modulated (PFM)  
controller for LLC resonant converters with Synchronous  
Rectification (SR) that offers best in class efficiency for isolated  
DC/DC converters. It employs a current mode control technique based  
on a charge control, where the triangular waveform from the oscillator  
is combined with the integrated switch current information to  
determine the switching frequency. This provides a better  
control−to−output transfer function of the power stage simplifying the  
feedback loop design while allowing true input power limit capability.  
Closed−loop soft−start prevents saturation of the error amplifier and  
allows monotonic rising of the output voltage regardless of load  
condition. A dual edge tracking adaptive dead time control minimizes  
the body diode conduction time thus maximizing efficiency.  
Features  
• Secondary Side PFM Controller for LLC Resonant Converter with  
Synchronous Rectifier Control  
• Charge Current Control for Better Transient Response and Easy  
Feedback Loop Design  
• Adaptive Synchronous Rectification Control with Dual Edge  
Tracking  
• Closed Loop Soft−Start for Monotonic Rising Output  
• Wide Operating Frequency (39 kHz ~ 690 kHz)  
AWLYWWG  
1
NCV4390  
= Specific Device Code  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
A
L
Y
WW  
G
= Pb−Free Package  
PIN CONNECTIONS  
5VB  
GND  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
VDD  
PWMS  
FMIN  
FB  
PROUT1  
PROUT2  
SROUT1  
COMP  
SS  
SROUT2  
SR1DS  
ICS  
CS  
RDT  
• Green Functions to Improve Light−Load Efficiency  
♦ Symmetric PWM Control at Light−Load to Limit the Switching  
Frequency while Reducing Switching Losses  
♦ Disabling SR at Light−Load Condition  
ORDERING INFORMATION  
See detailed ordering and shipping information on page 3 of  
this data sheet.  
• Protection Functions with Auto−Restart  
♦ Over−Current Protection (OCP)  
♦ Output Short Protection (OSP)  
♦ NON Zero−Voltage Switching Prevention (NZS) by  
Compensation Cutback (Frequency Shift)  
♦ Power Limit by Compensation Cutback (Frequency Shift)  
♦ Overload Protection (OLP)  
• Programmable Dead Times for Primary Side Switches and Secondary  
Side Synchronous Rectifiers  
• V Under−Voltage Lockout (UVLO)  
DD  
• Wide Operating Temperature Range −40°C to +125°C  
• Automotive Qualified to AEC−Q100 Grade 1  
• This Device is Pb−Free, Halogen Free/BFR Free and is RoHS  
Compliant  
Applications  
• Automotive On Board Charger  
• EV High Voltage DC/DC Converters  
© Semiconductor Components Industries, LLC, 2020  
1
Publication Order Number:  
November, 2021 − Rev. 2  
NCV4390/D  
1234567...30

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