sensitron semiconductor PB5114, rev - ? phone (631) 586 7600 ? www.sensitron.com ? e-mail: sales@ sensitron.com ? page 1 diamondback series diamondback series programmable multi-channel solid state power controllers the diamondback series of programmable multi-channel solid st ate power controllers (sspc) is a microcontroller-based, cots solid state power controller board designed for 28vdc applications. each channel of the diamondback has software-programmable current ratings and can operate grouped with other channels to support loads up to 150a. the board has integrated current, temperature and voltage sensing and no derating over temperature. parameter measurements, system status information and control commands are issued over a serial communications interface. f f e e a a t t u u r r e e s s : : ? 16 electrically-protected channels ? programmable ratings from 0.25a to 25a ? parallel channel capability up to 150a ? total current capability of up to 160a ? max power dissipation less than 20w ? true i 2 t and thermal memory protection ? normal and senswide? instant trip ? trip-free reset circuit ? current, temperature, voltage readings ? hi accuracy over temperature range ? controlled turn-on/off to reduce emc ? trip disable and maintenance modes ? power-up and continuous built-in-test ? optically isolated input and outputs ? isolated electrical control circuit ? 5vdc auxiliary power option ? conduction cooled board ? -55 o c to 85 o c operating temperature b b e e n n e e f f i i t t s s : : sensitron?s sspc technology and produc ts combine the functionalities of electro-mechanical breakers, solid state relays, and system monitors, thereby prov iding the following benefits to our customers: ? electrical load protection and monitoring - current, voltage and temperature measurements ? operational improvements by allowing for diagnost ics, prognostics and cond ition-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 a a p p p p l l i i c c a a t t i i o o n n a a r r e e a a s s : : sensitron?s sspc products are ideal for use in power management applic ations 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
sensitron semiconductor product brief PB5114, rev - ? phone (631) 586 7600 ? www.sensitron.com ? e-mail: sales@sensitron.com ? page 2 diamondback series current protection similarly to the traditional electromechanical circuit br eakers, the diamondback prot ects electrical circuits by closely controlling the i 2 t factor. channel paralleling multiple individual channels can be paralleled in order handle large current loads. the new current rating is calculated as the sum of the individual channel rating s. to use channels in parallel, simply tie the channels? load pins together, put the board in maintenance mode, and program the required parallel combination. health monitoring diamondback solid state power controller provides current, voltage and temperature measurements. this information can be used to monitor electrical lo ads and perform tasks such as diagnostics, prognostics and condition-based maintenance. block diagram diamondback?s architecture is comprised of high si de switches controlled by a central microprocessor. the switching blocks are responsible for the control of individual channels. the processor performs all necessary measurements, data proc essing, and communicates to the user?s application through a can communications interface. figure 1 ? block diagram can communications all communications between the diamondback and the co ntroller is conducted via a j1939 compliant can communications interface. diamondback only responds to the user?s commands, however, user?s software is not required to operate the diamondback series products. communications interface commands are defined by sensitron?s interf ace communications document (icd). pl ease contact us for a copy of this document.
sensitron semiconductor product brief PB5114, rev - ? phone (631) 586 7600 ? www.sensitron.com ? e-mail: sales@sensitron.com ? page 3 diamondback series i/o definitions control & status (ttl/cmos compatible) bias (v cc ) 5.0v dc nominal, 7.0v dc absolute maximum 4.5v to 5.5 vdc bias (v cc ) current 210ma typ (tbd) bit* output v oh =3.7v, min, at i oh =-20ma v ol =0.4v, max, at i ol =20ma maintenance mode and trip disable inputs v t+ (positive-going input threshold voltage) v t ? (negative-going input threshold voltage) v t hysteresis (v t + v t ? ) 2.0v, min, 3.5v, max 1.2v, min, 2.3v, max 0.6v, min, 1.4v, max can 1 driver output voltage ? canh (dominant ) 2.75v, min; 3.5v, typ; 4.5v, max driver output voltage ? canl (dominant) 0.5v, min; 2v, max driver output voltage ? canh (recessive) 1.5v, min; 2.5v, typ; 3v, max driver output voltage ? canl (recessive) 1.5v, min; 2.5v, typ; 3v, max driver differential output voltage (dom inant) 1.2v,min; 2v, typ; 3.1v, max driver differential output voltage (recessive) -120mv, min; 12mv, max driver differential output voltage rise/fall time 100ns to 250ns depending on baud rate receiver positive-going input threshold 750mv, typ; 900mv, max receiver negative-going input threshold 500mv, min; 650mv, typ receiver input hysteresis 100mv, typ receiver input resistance 40k , min; 100k , max esd ? human body model + 14kv, typ input/line voltage input voltage ? continuous ? transient 0 to 70v dc, 90v dc abs maximum +600v or ?600v spike (< 10 s) max output voltage of off channel 1.2v typ @ v line = 28vdc 3.3v max @ v line = 28vdc 4.3v max @ v line = 45vdc max current without tripping 145% of the programmed current rating min current for guaranteed tripping 115% of the programmed current rating table 1 - electrical characteristics application support sensitron?s graphical user interface provides a quick way to interact wi th 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 ch annel turn on/off, measur ement readin gs, channel paralleling, etc. please contact the factory to obtain a copy of this program. compliant documents & standards mil-std-1275d characteristics of 28 volt dc electrical systems in military vehicles mil-std-704f aircraft electr ical power characteristics mil-std-217f, notice 2 reliability prediction of electronic equipment
sensitron semiconductor product brief PB5114, rev - ? phone (631) 586 7600 ? www.sensitron.com ? e-mail: sales@sensitron.com ? page 4 diamondback series outline drawing part number ordering information: reference diamondback series for ordering. 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 s hould be ensured by using semi conductor devices that featur e assured safety or by m eans 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 info rmation, 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) de scribed in the datasheet(s) are not to be provi ded to any party whose purpose in their applica tion will hinder maintenance of international peace and safety nor are they to be ap plied to that purpose by their direct purchasers or any thir d party. when exporting these products (technolog ies), the necessary procedures are to be taken in accordance with related laws and regulatio ns.
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