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PTH08T250W

更新时间： 2024-01-13 23:03:26
品牌 Logo 应用领域
德州仪器 - TI 电源电路输出元件输入元件
页数 文件大小 规格书
38页 1384K
描述
50-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans⑩

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PTH08T250W 数据手册

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PTH08T250W  
www.ti.com  
SLTS278B–JUNE 2007–REVISED AUGUST 2007  
50-A, 4.5-V to 14-V INPUT, NON-ISOLATED,  
WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TurboTrans™  
1
FEATURES  
•
•
•
Multi-Phase, Switch-Mode Topology  
TurboTrans™ Technology  
2
•
Up to 50-A Output Current  
•
•
•
•
•
4.5-V to 14-V Input Voltage  
Designed to meet Ultra-Fast Transient  
Requirements up to 300 A/μs  
Wide-Output Voltage Adjust (0.7 V to 3.6 V)  
±1.5% Total Output Voltage Variation  
Efficiencies up to 96%  
•
•
SmartSync Technology  
Parallel Operation  
Output Overcurrent Protection  
(Nonlatching, Auto-Reset)  
APPLICATIONS  
•
•
•
Complex Multi-Voltage Systems  
Servers  
Workstations  
•
•
Operating Temperature: –40°C to 85°C  
Safety Agency Approvals: (Pending)  
–
UL/IEC/CSA-C22.2 60950-1  
•
•
•
•
•
Prebias Startup  
On/Off Inhibit  
Differential Output Voltage Remote Sense  
Adjustable Undervoltage Lockout  
Auto-Track™ Sequencing  
DESCRIPTION  
The PTH08T250W is a high-performance 50-A rated, non-isolated power module. This module represents the  
2nd generation of the popular PTH series power modules with a reduced footprint and improved features.  
Operating from an input voltage range of 4.5 V to 14 V, the PTH08T250W requires a single resistor to set the  
output voltage to any value over the range, 0.7 V to 3.6 V. The wide input voltage range makes the  
PTH08T250W particularly suitable for advanced computing and server applications that utilize a loosely  
regulated 8-V to 12-V intermediate distribution bus. Additionally, the wide input voltage range increases design  
flexibility by supporting operation with tightly regulated 5-V, 8-V, or 12-V intermediate bus architectures.  
The module incorporates a comprehensive list of features. Output overcurrent and over-temperature shutdown  
protects against most load faults. A differential remote sense ensures tight load regulation. An adjustable  
under-voltage lockout allows the turn-on voltage threshold to be customized. Auto-Track™ sequencing is a  
popular feature that greatly simplifies the simultaneous power-up and power-down of multiple modules in a  
power system. Additionally, the capability to current share between multiple PTH08T250W modules allows for  
load currents greater than 50A on a single rail.  
The PTH08T250W includes new patent pending technologies, TurboTrans™ and SmartSync. The TurboTrans  
feature optimizes the transient response of the regulator while simultaneously reducing the quantity of external  
output capacitors required to meet a target voltage deviation specification. Additionally, for a target output  
capacitor bank, TurboTrans can be used to significantly improve the regulators transient response by reducing  
the peak voltage deviation. SmartSync allows for switching frequency synchronization of multiple modules, thus  
simplifying EMI noise suppression tasks and reducing input capacitor RMS current requirements.  
The module uses double-sided surface mount construction to provide a low profile and compact footprint.  
Package options include both through-hole and surface mount configurations that are lead (Pb) - free and RoHS  
compatible.  
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.  
2
TurboTrans, Auto-Track, TMS320 are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007, Texas Instruments Incorporated  
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PTH08T250W 替代型号

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