EVAL-ADM1070EB Просмотр технического описания (PDF) - Analog Devices
Номер в каталоге
Компоненты Описание
Список матч
EVAL-ADM1070EB Datasheet PDF : 12 Pages
| |||
a ADM1070 Hot Swap Controller Evaluation Kit
Documentation
EVAL-ADM1070EB
FEATURES
Full Evaluation Kit for the ADM1070 Hot Swap Controller
Kit Contains Two Boards
Main Evaluation Board for Bench Evaluation
Micro Evaluation Board to Drop into User’s System
Both Boards Feature
On-Board FET to Control Load Current
Programmable Operating Voltage Range (R1/R2 Ratio)
Programmable Current Limit Levels (Value of RSENSE)
Choice of Default or Custom Timing Values
Main Evaluation Board Features
Edge Connectors Allow for Simulation of Real
Hot Swap Events with ADM1070 Residing on Plug-In
Module or Backplane
External Signals Can Be Switched in through SMB
Connectors to Override VIN, SENSE, and UV/OV Signals
Microboard Features
Drops onto a User’s System, Replacing the Current
Hot Swap Device
EVALUATION KIT CONTENTS
• ADM1070 Evaluation Board
• ADM1070 Microboard
• ADM1070 Data Sheet
• Evaluation Kit Documentation (This Document)
• Application Note
• Five ADM1070 Samples
ORDERING INFORMATION
Full ADM1070 Evaluation Kit: The EVAL-ADM1070EB
contains the Main Evaluation Board and Micro Evaluation Board.
ADM1070 Micro Evaluation Kit: The EVAL-ADM1070MEB
contains the Micro Evaluation Board only.
GENERAL DESCRIPTION
This Evaluation Kit allows the ADM1070 negative voltage Hot
Swap Controller to be easily evaluated. The ADM1070 provides
undervoltage and overvoltage protection by monitoring the
supply voltage and provides robust current limiting by monitor-
ing the load current. The device uses a FET in the power path
to control the load current. The complete data sheet for the
ADM1070 is available from Analog Devices and should be
consulted in conjunction with this document.
SETTING UP THE ADM1070 MAIN EVALUATION BOARD
The user can set up the ADM1070 Evaluation Board with various
configurations of supply voltage operating range, maximum
allowable load current, and timing values as follows:
1. Choose values of resistors R1 and R2 to suit the desired oper-
ating voltage range. The default resistors’ values (R1 = 39 kΩ,
R2 = 1 kΩ) give an operating range of 36.4 V to 76.8 V. See
Table IV on page 11 of the ADM1070 data sheet for other
resistor ratios and their operating ranges.
2. Choose a maximum load current permitted before the
ADM1070 will register a current fault. This is decided by the
choice of resistor R6 (RSENSE), see Table I of the ADM1070
data sheet.
FUNCTIONAL BLOCK DIAGRAM
0V IN J1
EDGE
CONNECTOR
J8
–48V IN J4
–48V IN J2
–48V IN J3
RDROP 16k⍀
VIN
R1
ADM1070
GATE
UV/OV
SENSE
R2
TIMER
VEE
J9
Q1
RSENSE
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2002
Share Link: 