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器件3D模型￥ 16.136
UCC28950QPWRQ1 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
TSSOP-24
描述:
移相全桥控制器采用同步整流 Phase-Shifted Full-Bridge Controller With Synchronous Rectification
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引脚图在P8P13Hot
典型应用电路图在P2P4P5P6P7P10P17P18
原理图在P9P14
封装尺寸在P43P45P46
焊盘布局在P30
型号编码规则在P3
标记信息在P3P43
封装信息在P43P44P45P46
技术参数、封装参数在P3
应用领域在P1P49
电气规格在P4P5P6P7
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UCC28950QPWRQ1数据手册
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UCC28950-Q1
www.ti.com
SLUSAG4B –APRIL 2011–REVISED SEPTEMBER 2012
Phase-Shifted Full-Bridge Controller With Synchronous Rectification
Check for Samples: UCC28950-Q1
1
FEATURES
With Hiccup Mode Support
• 150-µA Start-Up Current
• Qualified for Automotive Applications
• V
DD
Undervoltage Lockout
• AEC-Q100 Qualified With the Following
Results:
• Wide Temperature Range, –40°C to 125°C
– Device Temperature Grade 1: –40ºC to
APPLICATIONS
125ºC Ambient Operating Temperature
Range
• Phase-Shifted Full-Bridge Converters
– Device HBM ESD Classification Level H2
• Industrial Power Systems
– Device CDM ESD Classification Level C3B
• High-Density Power Architectures
• Enhanced Wide-Range Resonant Zero-Voltage
• Solar Inverters and Electric Vehicles
Switching (ZVS) Capability
• Direct Synchronous Rectifier (SR) Control DESCRIPTION
The UCC28950-Q1 enhanced phase-shifted
• Light-Load Efficiency Management Including
controller builds upon Texas Instruments' industry-
– Burst Mode Operation
standard UCCx895 phase-shifted controller family
– Discontinuous Conduction Mode (DCM),
with enhancements that offer best-in-class efficiency
Dynamic SR On/Off Control With
in today’s high-performance power systems. The
Programmable Threshold
UCC28950-Q1 implements advanced control of the
full bridge along with active control of the
– Programmable Adaptive Delay
synchronous-rectifier output stage.
• Average- or Peak-Current Mode Control With
The primary-side signals allow programmable delays
Programmable Slope Compensation and
to ensure ZVS operation over wide load-current and
Voltage-Mode Control
input-voltage ranges, while the load current naturally
• Closed-Loop Soft-Start and Enable Function
tunes the secondary-side switching delays of the
• Programmable Switching Frequency up to 1
synchronous rectifiers, maximizing overall system
MHz with Bidirectional Synchronization
efficiency.
• (±3%) Cycle-by-Cycle Current Limit Protection
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2011–2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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