Moteur de recherche de fiches techniques de composants électroniques
  French  ▼

Delete All
ON OFF
ALLDATASHEET.FR

X  

Preview PDF Download HTML

SMM205 Fiches technique(PDF) 1 Page - Summit Microelectronics, Inc.

No de pièce SMM205
Description  Dual Channel Supply Voltage Marginer and Active DC Output Controller
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  SUMMIT [Summit Microelectronics, Inc.]
Site Internet  http://www.summitmicro.com
Logo SUMMIT - Summit Microelectronics, Inc.

SMM205 Fiches technique(HTML) 1 Page - Summit Microelectronics, Inc.

  SMM205 Datasheet HTML 1Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 2Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 3Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 4Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 5Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 6Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 7Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 8Page - Summit Microelectronics, Inc. SMM205 Datasheet HTML 9Page - Summit Microelectronics, Inc. Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
SMM205
Preliminary Information
1
(See Last Page)
© SUMMIT Microelectronics, Inc. 2003 • 1717 Fox Drive • San Jose CA 95131 • Phone 408 436-9890 • FAX 408 436-9897
www.summitmicro.com
2069 1.4 6/23/03
1
FEATURES & APPLICATIONS
• Extremely accurate (±0.1%) Active
DC Output Control (ADOC)
• ADOC Automatically adjusts supply output
voltage level under all load conditions
• Capable of margining supplies with trim inputs
using either positive or negative trim pin control
• Wide Margin/ADOC range from 0.3V to VDD
• Uses either an internal or external VREF
• Operates from any intermediate bus supply
from 8V to 15V and from 2.7V to 5.5V
• Programmable START and READY pins
• Two programmable general purpose monitor
sensors – UV and OV with FAULT Output Flag
• General Purpose 1k EEPROM with Write Protect
• I2C 2-wire serial bus for programming
configuration and monitoring status.
• 28 lead QFN package
Applications
• In-system test and control of Point-of-Load
(POL) Power Supplies for Multi-voltage
Processors, DSPs and ASICs
• Enterprise and edge routers, servers, Storage
Area Networks
INTRODUCTION
The SMM205 actively controls the output voltage level
of two DC/DC converters that use a Trim or VADJ/FB
pin to adjust the output. An Active DC Output Control
(ADOC) feature is used during normal operation to
maintain extremely accurate settings of supply
voltages and, during system test, to control margining
of the supplies using I
2C commands. Total accuracy
with a ±0.1% external reference is ±0.2%, and ±0.5%
using the internal reference. The device can margin
supplies with either positive or negative trim pin control
within a range of 0.3V to VDD. The SMM105 supply
can be from 12V, 8V, 5V or 3.3V to as low as 2.7V to
accommodate any intermediate bus supply.
The voltage settings (margin high/low and nominal)
are programmed into nonvolatile memory through the
industry standard I
2C 2-wire data bus. The I2C bus is
also used to enable margin high, margin low, ADOC or
normal operation. When margining, the SMM205
checks the voltage output of the converter and make
adjustments to the trim pin via a feedback loop to bring
the voltage to the margin setting. A margining status
register is set to indicate that the system is ready for
test. The SMM205 ADOC continues to monitor and
adjust the channel output at the specified level.
SIMPLIFIED APPLICATIONS DRAWING
START
WP#
VREF_CNTL
TRIM_CAPA
COMP1
TRIMA
COMP2
READY
TRIM_CAPB
TRIMB
VMB
VMA
VDD_CAP
FILT_CAP
SMM205
6V to 15V
2.7V to 5.5V
Intermediate
Bus Voltage
(IBA
I2C
BUS
A0
A2
SCL
SDA
A1
DC/DC
V–
Trim
V+
Vin
On/Off
DC/DC
V–
Trim
V+
Vin
On/Off
UV
OV
Processor
V1
V2
GND
External or
Internal
VREF
Figure 1 – Applications Schematic showing the SMM205 ADOC actively control the DC output level of 2
DC/DC Converters as well as provide margin control. The SMM205 can operate over a wide supply range
Note: This is an applications example only. Some pins, components and values are not shown.
Dual Channel Supply Voltage Marginer and Active DC Output Controller


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Fiches technique Télécharger

Go To PDF Page

Numéro de composants électroniques

No de pièceDescriptionHtml ViewFabricant
SMM105 Single-Channel Supply Voltage Marginer and Active DC Output Controller 1  2  3  4  5  More Summit Microelectronics, Inc.
SMM605 Six-Channel Supply Voltage Marginer and Active DC Output Controller ADOCTM 1  2  3  4  5  More Summit Microelectronics, Inc.
NJM2737 Low Noise Low Supply Voltage Dual Operational Amplifier with Full Swing Input and Output 1  2  3  4  5  More New Japan Radio
ISL6405 Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-top Box Designs 1  2  3  4  5  More Intersil Corporation
ISL6424 Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs 1  2  3  4  5  More Intersil Corporation
PI74LVCC3245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs 1  2  3  4  5  More Pericom Semiconductor Corporation
PI74LVCC4245A 8-Bit Dual Supply Bus Transceiver with Configurable Output Voltage and 3-State Outputs 1  2  3  4  5  More Pericom Semiconductor Corporation
SMM465 4-Channel Active DC Output Controller Monitor Marginer and Sequencer 1  2  3  4  5  More Summit Microelectronics, Inc.
CS5127 Dual Output Nonsynchronous Buck Controller with Sync Function and Second Channel Enable 1  2  3  4  5  More Cherry Semiconductor Corporation
SMM665B Six-Channel Active DC Output Controller Monitor Marginer and Sequencer 1  2  3  4  5  More Summit Microelectronics, Inc.

Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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