SPDN Series COBRA SENSITRON SEMICONDUCTOR Product Brief 5038, Rev C COBRA Series Programmable Multi-Channel Solid State Power Controllers The Cobra Series of Programmable Multi-Channel Solid State Power Controllers (SSPC) are multi-channel, microcontroller based, Solid State Power Controller boards designed to for 28VDC applications. Each channel of the Cobra series is software programmable for rated current up to 25A and can operate grouped with other channels to support large loads up to 150A of current. The Cobra is intended to be used where multiple Solid State Power Controller channels need to be co-located on the same card or in a power distribution box. These boards have integrated current sensing, temperature and voltage sensing with no derating over the full operating temperature range and communicate with the system controller over an RS-232, RS-422, and RS-485 serial bus. Features: • • • • • • • Up to 6 channels can be grouped together Programmable from 1 Amp to 25 Amps Parallel channel capability up to 150 amps Trip disable and maintenance modes Power-up and continuous built-in test Non-volatile storage of parameters 2 True I t and thermal memory protection • • • • • • • Internally generated isolated supply High control circuit isolation Soft turn-on to reduce EMC issues Trip-free reset circuit Optically isolated input and outputs o o -55 C to 100 C operating temp range No heat sinking required Benefits: Sensitron’s SSPC technology and products combine functionalities of electro-mechanical breakers, solid state relays and system monitors and provide the following benefits to our customers: • • • • • Electrical load protection and monitoring - current, voltage and temperature measurements Operational improvements by allowing for diagnostics, prognostics and condition-based maintenance Life cycle cost savings and reduced cost of ownership Increased radius of operation through power budgeting and load shedding Crew offloading and network-controlled intelligent load management Application Areas: Sensitron’s SSPC products are ideal for use in Power Management applications in the following markets: • • • • Military Ground Vehicles Unmanned Aerial Vehicles Marine Vessels Test & Industrial Equipment • • • • Communication and Command Centers Energy Exploration Equipment Off Highway and Heavy Duty Vehicles Medical Emergency Vehicles Phone (631) 586 7600 www.sensitron.com E-Mail: [email protected] Page 1 SENSITRON SEMICONDUCTOR SPDN Series – COBRA Product Brief 5038, Rev C Figure 1 – Block Diagram I/O DEFINITIONS Control & Status (TTL/CMOS Compatible) 5.0V DC Nominal, 7.0V DC Absolute Maximum 4.5V to 5.5 VDC 105 mA typ 150 mA, max (RS-422/RS-485 Serial I/O) Voh=3.7V, min, at Ioh=-20mA Vol=0.4V, max, at Iol=20mA BIAS (Vcc) BIAS (Vcc) Current BIT* Output MAINTENANCE MODE and BATTLESHORT Inputs VT+ (Positive-going input threshold voltage) VT− (Negative-going input threshold voltage) VT Hysteresis (VT+ VT−) Power Input Voltage – Continuous – Transient 1 Power Dissipation – Single Channel 1 Power Dissipation – Six Channels (Each channel at indicated current) Output Rise Time (turn-on) Output Fall Time under normal turn-off Output Fall Time under Fault Min Load Requirement 2.0V, min, 3.5V, max 1.2V, min, 2.3V, max 0.6V, min, 1.4V, max 0 to 40V DC, 50V DC Absolute Maximum +600V or –600V Spike (< 10 uS) < 0.68W typ @ 15A @ 25C < 2.25W max @ 25A @ 25C < 4.5W typ @ 15A @ 25C < 15.0W max @ 25A @ 25C 760 sec typ, 500 sec, min. 160 sec typ, 100 sec, min. 75 sec typ Nil Table 1- Electrical Characteristics © 2012 Sensitron Semiconductor Phone (631) 586 7600 www.sensitron.com [email protected] Page 2 SENSITRON SEMICONDUCTOR SPDN Series – COBRA Product Brief 5038, Rev C Figure 2 – Trip Times The Cobra Series board measures current for each individual channel and calculates I2t and Instant Trip. If the trip condition is met, the channel turns of 28VDC rails from the load. This condition is stored on the board and can be queried by the Power Management Computer (PMC) via the communications interface. Figure 3 – Outline Drawing SUPPORT Sensitron’s Graphical User Interface provides a quick way to interact with the Diamondback board. This PC- based program is designed for lab use and enables the user to evaluate the board. The GUI sends the commands to the board to perform tasks such as channel turn on/off, measurement readings, channel paralleling, etc. Please contact the factory to obtain a copy of this program. © 2012 Sensitron Semiconductor Phone (631) 586 7600 www.sensitron.com [email protected] Page 3 SENSITRON SEMICONDUCTOR SPDN Series – COBRA Product Brief 5038, Rev C COMPLIANT DOCUMENTS & STANDARDS MIL-STD-1275D Characteristics of 28 Volt DC Electrical Systems in Military Vehicles MIL-STD-704F Aircraft Electrical Power Characteristics MIL-STD-217F, Notice 2 Reliability Prediction of Electronic Equipment PART NUMBERING ORDERING INFORMATION: 1 2 3 4 5 6 S P D N 0 6 6 6 6 Number of channels Product Family N= Cobra M = Diamondback F= Four Channel Current Direction D = Direct Current A = Alternating Current SP= SENSITRON POWER 7 8 9 10 M Baud Rate 1 = 1Mbaud 2 = 500kbaud 3 = 250kbaud 4 = 125kbaud 5 = 115.2kbaud 6 = 57.6baud 7 = 19.2kbaud 8 = 9.6kbaud 9 = 2.4kbaud A = 1.2kbaud Communication Interface A = RS-232 B = RS-422* C = CAN* D = Discrete* N = Ethernet* M = RS-485 * Contact Factory Channel Combination 0 1 Channel Offering Group 1 4x 1A - 25A 6x 1A – 25A Group 2 - © 2012 Sensitron Semiconductor Phone (631) 586 7600 www.sensitron.com [email protected] Page 4 SENSITRON SEMICONDUCTOR SPDN Series – COBRA Product Brief 5038, Rev C DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability 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 damages that may result from an accident or any other cause during operation of the user’s units according to the datasheet(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 failure in a semiconductor device or any secondary damage resulting 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 part, without the expressed written permission 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. © 2012 Sensitron Semiconductor Phone (631) 586 7600 www.sensitron.com [email protected] Page 5