SPOR30D28 SENSITRON | Alldatasheet

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DATA SHEET 5054, REV-

221 West Industry Court, Deer Park, NY 11729-4681 Phone (631) 586 7600 Fax (631) 2429798

World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 1 SPOR30D28 ACTIVE ORING CONTROLLER MODULE

DESCRIPTION

In fault tolerant, redundant power distribution systems, oring power diodes are commonly used, when paralleling multiple power supplies, to prevent the occurrence of reverse current if an individual power supply voltage falls signifi cantly below the others. Despite of low-cost and easy implementation, the use of oring power diodes suffers from high power dissipation especially in high current applications. The active oring controller module is designed to replace oring power diodes in high -reliable 28V DC aircraft power systems. Each module is designed to parallel two power supplies w ith current rated up to 30A on each line. The module uses low on- resistance oring MOSFETs driven by an oring controller. Compared to oring power diodes, this module dissipates very low power loss and can be operated without any heat sink. In addition, the module can detect faults of dead short in the sour cing supply, a blown fuse, over load current, or open- circuit of oring MOSFETs. This module also provides an interface for customers to diagnose the short- circuit fault of oring MOSFETs. MODULE FEATURES

  • Suitable for 28VDC power systems with current rated up to 30A
  • No additional heat sinking or external cooling required
  • No external bias supply required
  • Low power dissipation
  • Smooth switchover between two sourcing supply
  • 0.5 µs turn-off time limits peak reverse current
  • Ability to reports faults of dead short power supply, blown fuses, over load current, and open- circuit of oring MOSFETs
  • Ability to check short-circuit fault of oring MOSFETs
  • TTL and COMS compatible control input/output
  • Compact design
  • Epoxy shell construction

DATA SHEET 5054, REV- World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 2 SPOR30D28 ELECTRICAL CHARACTERISTICS (Tested under 25˚C unless otherwise specified) Power Input Voltage From 15V to 40V Power Dissipation See Fig 4 Current Typical 30A Maximum Voltage Drop See Fig 3 Control PWRFLT1, PWRFLT2 FUSEFLE1, FUSEFLT2 Pins Output Low 100mV typical 200mV maximum LINE1HI, LINE2HI, Pins Output Low 150mV typical 400mV maximum PWRFLT1, PWRFLT2 FUSEFLE1, FUSEFLT2 , LINE1HI, LINE2HI, Pins Leakage Current 0 typical Aµ1± maximum FETCHK1, FETCHK2 Pins Input Current 80mA maximum PHYSICAL CHARACTERISTICS TEMPERATURE Operating Temperature TA= C40°− To C85° Storage Temperature TA= C55°− To C125°

DATA SHEET 5054, REV- World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 3 SPOR30D28 MECHANICAL DIMENSIONS (in Inches)

DATA SHEET 5054, REV- World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 4 SPOR30D28 PIN DEFINITIONS Pin Symbol Pin Description LINE1, LINE2 28V line input pins FUSE1, FUSE2 If fuses are required in th e power distribution path, they can be located between LINE1, 2 and FUSE1, 2. Otherwise short LINE1, 2 and FUSE1, 2. Load Output pin of the module. This pi n is used to connect to the load. FETCHK1, FETCHK2 FET check input pins. T ogether with PWFLT1, 2 output pins, the FETCHK1, 2 pins can be used to determine the short-circuit fault of oring MOSFETs. LINE1HI, LINE2HI These two pins indicat e which channel has higher line voltage. The pin of higher line voltage gives open drain output, otherwise it is shorted to GND. GND Ground of the module. This pin should be connected to 28V return. 1PWRFLT , 2PWRFLT Output pin of fault detection. (see Fault Table for details) 1FUSEFLE , 2FUSEFLT Output pin of blown fuse detection. FAULT TABLE1 FETCHK V DS (V) <250mV VFUSE (V) >3.5V VLINE (V) >26V FUSEFLT PWRFLT COMMMENTS Low True True True Hi-Z Hi-Z Normal operation Low True True False Hi-Z Pull-Down V LINE1 <26V Low True False True Pull-Down Hi-Z Blown fuse Low True False False Pull-Down Pull-Down V LINE1 <3.5V or Combination of proceeding two faults Low False True True Hi-Z Pull-Down Open-circuit fault in MOSFETs or Iload >180A High2 True True True Hi-Z Hi-Z Short-circuit fault in MOSFETs High2 False True True Hi-Z Pull-Down Good MOSFETs Note1: Fault table is valid for both line1 and line2. Note2: FETCHK can only be applied on the line with pin LINE1(2)HI high.

DATA SHEET 5054, REV- World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 5 SPOR30D28 TYPICAL APPLICATIONS Fig. 1 Basic application Fig. 2 A design example

DATA SHEET 5054, REV- World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 6 SPOR30D28 TYPICAL PERFORMANCE CHARACTERISTICS (Tested under 25˚C unless otherwise specified) 10 20 30 Load Current (A) Voltage Drop (mV) Fig3. Input and output voltage drop versus load current 10 20 30 Load Current (A) Power Dissipation (W) Fig4. Power dissipation loss versus load current

DATA SHEET 5054, REV- World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com Page 7 SPOR30D28 DISCLAIMER: 1- The information given herein, including the specifications and dimens ions, is subject to change without prior notice to impr ove product characteristics. Before ordering, purchas ers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliabilit y is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by means of users’ fail-safe precautions or other arrangement . 3- In no event shall Sensitron Semiconductor be liable for any dam ages that may result from an accident or any other cause duri ng operation of the user’s units according to the datas heet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets. 4- In no event shall Sensitron Semiconductor be liable for any fa ilure in a semiconductor device or any secondary damage result ing from use at a value exceeding the absolute maximum rating. 5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor. 6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or par t, without the expressed written permissio n of Sensitron Semiconductor. 7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and regulations.