Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
SMM764FCR7 Datasheet(PDF) 1 Page - Summit Microelectronics, Inc. |
|
SMM764FCR7 Datasheet(HTML) 1 Page - Summit Microelectronics, Inc. |
1 / 33 page SMM764 Preliminary Information 1 (See Last Page) © SUMMIT Microelectronics, Inc. 2004 • 1717 Fox Drive • San Jose CA 95131 • Phone 408 436-9890 • FAX 408 436-9897 The Summit Web Site can be accessed by “right” or “left” mouse clicking on the link: http://www.summitmicro.com/ 2098 1.1 6/29/2005 1 Four-Channel Active DC Output Controller, Monitor, Marginer and Sequencer with Sequence-Link • Extremely accurate (±0.2%) output voltages using Active DC Output Control (ADOC™) • Sequence-Link™ provides sequencing of up to 46 channels • ADOC automatically adjusts supply output voltage level under all DC load conditions • Monitors, controls and margins up to 4 supplies from 0.3V to 5.5V • Programmable power-on/-off sequencing • Operates from any intermediate bus supply from 6V to 14V and from 2.7V to 5.5V • Monitors 12V input VDD and temperature sensor • Wide margin/ADOC range from 0.3v to VDD • Monitors two general-purpose 10-bit ADC inputs • I2C 2-wire serial bus for programming configuration and monitoring status, including 10-bit ADC conversion results • 2 programmable Under Voltage (UV) and Over Voltage (OV) threshold limits for each of 9 monitored inputs • 2k-bit general purpose nonvolatile memory Applications • Monitor/control distributed and POL supplies • Multi-voltage processors, DSPs, ASICSs used in telecom, CompactPCI or server systems The SMM764 is an Active DC Output power supply Controller (ADOC TM) that monitors, margins, and cascade sequences. The ADOC feature is unique and maintains extremely accurate settings of system supply voltages to within ±0.2% under full load. The SMM764 actively controls up to 4 DC/DC converters and can be linked with up to 7 other Sequence-Link™ devices to accommodate sequencing of up to 46 channels. Control of the DC-DC converters is accomplished through the use of a Trim or Regulator VADJ/FB pin to adjust the output voltage. For system test, the part also controls margining of the supplies using I 2C commands. It can margin supplies with either positive or negative control within a range of 0.3V to VDD, depending on the specified range of the converter. The SMM764 also intelligently sequences or cascades the power supplies on and off in any order using enable outputs with programmable polarity. It can operate off any intermediate bus supply ranging from 6V to 14V or from 5.5V to as low as 2.7V. The part monitors 4 power supply channels as well as VDD, 12V input, two general-purpose analog inputs and an internal temperature sensor using a 10-bit ADC. The 10-bit ADC can measure the value on any one of the monitor channels and output the data via the I 2C bus. A host system can communicate with the SMM764 status register, margining and utilize 2K-bits of nonvolatile memory. SIMPLIFIED APPLICATIONS DRAWING TRIM B PUP B VM B TRIM_CAP B CAP B TRIM A PUP A VM A TRIM_CAP A CAP A SMM764 µP/ ASIC 3.3VIN (+2.7V to +5.5V Range) RESET# READY HEALTHY 12VIN (+6V to +14V Range) External or Internal TEMP SENSOR AIN1 2.5VIN 1.2VIN 12V SDA SCL I2C BUS 3.3V A2 VREF VIN TRIM Vout DC/DC Converter A ON/OFF VIN TRIM Vout DC/DC Converter B ON/OFF External or Internal REFERENCE Environmental SENSOR AIN2 DC/DC Converter C, DC/DC Converter D, 2 of 4 DC-DC Converters shown SEQ_LINK Figure 1 – Applications schematic using the SMM764 controller to actively control the output levels of up to 4 DC/DC converters while also providing power-on/off, cascade sequencing and output margining. Note: This is an applications example only. Some pins, components and values are not shown. INTRODUCTION FEATURES & APPLICATIONS |
Número de pieza similar - SMM764FCR7 |
|
Descripción similar - SMM764FCR7 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes 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 |