Offline Controllers | NCV4390
概览
NCV4390是一款先进的脉冲频率调制（PFM）控制器，用于具有同步整流（SR）功能的LLC谐振转换器，可为隔离式DC/DC转换器提供同类最佳的效率。它采用基于电荷控制的电流模式控制技术，将振荡器的三角波与集成的开关电流信息结合起来，从而确定开关频率。这为功率级提供了更好的控制转输出功能，简化了反馈环路设计，同时实现了真正的输入功率限制功能。闭环软启动可防止误差放大器饱和，并允许输出电压单调上升而不受负载条件的影响。双边缘跟踪自适应死区时间控制可最大限度地缩短体二极管的导通时间，从而最大限度地提高效率。
- Half-Bridge and Full-Bridge Converters
- ON-Board-Chargers
- xEV High Voltage Converters
- Charge Current Control
- Adaptive SR with Dual edge Tracking
- Green Functions, provide wider PWM mode entry level including PWM disable
- Closed Loop Soft-Start
- Programmable dead times
- Non-ZVS Protection
- Protection Functions with Auto-Restart- Over-Current Protection (OCP)- Output Short Protection (OSP)- Power Limit by Compensation Cutback (Frequency Shift)- Overload Protection (OLP) with Programmable Shutdown Delay Time- Over-Temperature Protection (OTP)
- Wide Operating Frequency (39 kHz ~ 690 kHz)
- AEC Qualified
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NCV4390DR2G
Active
Pb
A
H
P
SOIC-16
1
260
REEL
2500
Y
Half-Bridge
Current Mode
Up to 690
Yes
8.6 V
Yes
No
Yes
20
100 / 100
$1.4991
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