![]() |
Electronic Components Datasheet Search |
|
SPDPXXD28 Datasheet(PDF) 7 Page - Sensitron |
|
SPDPXXD28 Datasheet(HTML) 7 Page - Sensitron |
7 / 14 page ![]() SENSITRON SEMICONDUCTOR TECHNICAL DATA DATASHEET 5023, Rev D.1 ©2007 Sensitron Semiconductor • 221 West Industry Court • Deer Park, NY 11729-4681 Phone (631) 586 7600 Fax (631) 242 9798 • www.sensitron.com • sales@sensitron.com • Page 7 SPDPXXD28 SERIES Figure 5 - Electrical Block Diagram Description Figure 5 shows the block diagram of the SPDPXXD28 SSPC Series. It uses a SN74LVC3G14 device for digital I/O. This TTL compatible device has a Schmitt-Trigger input to minimize the effects of noise on the input. Its outputs can each drive more than 10 standard TTL loads. It’s also compatible with CMOS inputs and outputs. The SN74LVC3G14 is isolated from the remainder of the module circuitry by three optocouplers. The block labeled “Control & Protection Circuitry” gets power from the DC-DC converter and is referenced to the output of the SSPC. This block contains an amplifier to gain up the voltage developed across the sense resistor. It also contains a microcontroller with on-board timers, A/D converter, clock generator and independent watchdog timer. The microcontroller implements a precision I 2t protection curve as well as an Instant Trip function to protect the wiring and to protect itself. It performs all of the functions of multiple analog comparators and discrete logic in one high-reliability component. The “Control & Protection Circuitry” block also has the ability to adjust the current rating of each model of the SPDPXXD28 Series over a 5:1 range. If the “Gain” terminal is left open, the SSPC will be set for maximum rating. If the “Gain” terminal is connected directly to the “Gain Return” terminal, the SSPC will be set for 1/5 of the maximum rating. Furthermore, a resistor connected between the “Gain” terminal and the “Gain Return” terminal will set a rating between maximum and 1/5 of maximum. See Figure 10 for the relationship between rating and resistor value. GAIN GAIN RTN |
Similar Part No. - SPDPXXD28 |
|
Similar Description - SPDPXXD28 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |