EVAL-ADM1171EBZ

Evaluation Kit for
ADM1170, ADM1171, ADM1172
EVAL-ADM1170/ADM1171/ADM1172
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards are supplied as is and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. 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. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved.
PRODUCT DESCRIPTION
This evaluation board allows the ADM1170, ADM1171, and
ADM1172 to be easily evaluated. These parts are hot swap
controllers with enable input and gate pin output to drive an
external FET. The hot swap control circuitry allows the boards
to be safely inserted and removed from a live 1.6 V to 16.5 V
backplane. The parts provide precise, robust, current-limiting
protection against transient and nontransient short circuits as
well as undervoltage and overcurrent conditions.
In addition to the standard hot swap functionality, the ADM1170
has an additional supply pin that allows voltage monitoring on
a supply rail to go as low as 1.6 V. The ADM1171 features a
current sense output (CSOUT) pin. The voltage on the CSOUT
pin represents the voltage drop across the sense resistor gained
up by a factor of 20. Both ADM1170 and ADM1171 feature a
soft start function that provides the user with a capacitor pro-
grammable ramping reference to the internal current-sense
comparator. This provides a linearly increasing current limit at
startup at a rate set by the soft start capacitor (C
SS
), which helps
to reduce and limit large inrush currents. The ADM1172 features
a power-fail comparator. The voltage on the PFI pin is compared
with an internal 0.6 V reference, and the output of this
comparator is presented on the PFO pin.
All these devices are available in two options: the ADM117x-1
with automatic retry for overcurrent fault and the ADM117x-2
with latch-off for an overcurrent fault. Toggling the ON (ON-
CLR
) pin resets a latched fault. All parts are packaged in an
8-lead TSOT.
Order codes for evaluation kits are shown in the Ordering
Guide. (Pinouts and detailed package drawings can be found
in the individual product data sheets.)
EVALUATION BOARD DESCRIPTION
The ADM1170/ADM1171/ADM1172 hot swap controller
evaluation board contains all the necessary components for
evaluating all features of the devices. This board requires a
bench power supply of between 2.7 V and 16.5 V, connected
through J1 and J3 or, alternatively, through the corresponding
connectors on J4.
This board is capable of evaluating the ADM1170, ADM1171,
and ADM1172 parts by simply changing certain connectors to
suit specific evaluation plan.
Download the latest version of the configuration tool from
Analog Devices, Inc., at www.analog.com/powermonitorsw.
PACKAGE CONTENTS
ADM1170/ADM1171/ADM1172 main evaluation board
ADM1170, ADM1171, and ADM1172 device samples
EVAL-ADM1170/ADM1171/ADM1172
Rev. 0 | Page 2 of 12
TABLE OF CONTENTS
Product Description ......................................................................... 1
Evaluation Board Description ......................................................... 1
Package Contents .............................................................................. 1
Revision History ............................................................................... 2
Evaluation Board Hardware ............................................................ 3
Hardware Components ................................................................ 3
Switch, Jumper, and LED Functions .......................................... 3
Operating the Evaluation Board ..................................................... 5
Additional Features ...................................................................... 5
Powering the Evaluation Board .................................................. 5
ON (On-
CLR
) Input Block ......................................................... 6
Soft Start Capacitors Block .......................................................... 6
Timer Block ....................................................................................6
Sense Resistor and FET ................................................................6
Current Sense Output (CSO) .......................................................6
PFI/PFO Block ...............................................................................6
LEDs ................................................................................................6
Pin Access .......................................................................................6
Additional Components ...............................................................6
Evaluation Board Schematic ............................................................7
Ordering Information .......................................................................8
Bill of Materials ..............................................................................8
Ordering Guide .............................................................................9
ESD Caution...................................................................................9
REVISION HISTORY
6/08—Revision 0: Initial Version
EVAL-ADM1170/ADM1171/ADM1172
Rev. 0 | Page 3 of 12
EVALUATION BOARD HARDWARE
HARDWARE COMPONENTS
Main Evaluation Board
The evaluation board contains all of the circuitry necessary to
simulate real hot swap events such as a hot swap control FET,
sense resistor, and timing components. It also has an adjustable
resistor circuit to evaluate the performance of the power-fail
comparator for the ADM1172 part.
Device Samples
Some loose samples of the device to be evaluated are included
in a samples box. A single device should be placed in the socket
before powering up the evaluation board. The device should be
orientated in the socket such that Pin 1 is in the top left corner,
near to U3.
SWITCH, JUMPER, AND LED FUNCTIONS
Table 1. Connector Functions
Switch Description Default
S1
ON (ON-CLR
) pin setting switch
On
S1-ON Device enable
S1-OFF Device disable
S1-TOGGLE Reset a latched fault (for ADM1170, ADM1171, and ADM1172 parts)
S1_TIMER Timer pin setting switch
S1-1 Connects to a 22 nF capacitor, enables 5.7 ms initial delay and 476.6 μs circuit breaker delay Closed
S1-2 Connects to a 47 nF capacitor, enables 12.2 ms initial delay and 1.01 ms circuit breaker delay Open
S1-3 Connects to a 470 nF capacitor, enables 122.2 ms initial delay and 10.18 ms circuit breaker delay Open
S1-4 Connects empty footprint for user-defined capacitor (CT4) on the TIMER pin Open
S2-S Soft start pin setting switch (ADM1170 and ADM1171 only)
S2-1 Connects to a 1 nF capacitor, allowing 100 μs ramp-up delay Closed
S2-2 Connects to a 10 nF capacitor, allowing 1 ms ramp-up delay Open
S2-3 Connects to a 47 nF capacitor, allowing 4.7 ms ramp-up delay Open
S2-4 Connects empty footprint for user-defined capacitor (CS4) on the SS pin Open
Table 2. Jumper Functions
Jumper Description Default
LK_ON
Insert to enable manual enable/disable/reset control using Switch S1 or logic input on J1-1 (when S1 is on);
deassert to use external logic signals on Connector J4-7 to control device enable/disable/reset
Inserted
LK_VCC
Applies to the ADM1170; insert to power device from mail power rail; deassert to power device from Connector
J4-1 for low voltage monitoring mode
Insert for
ADM1170
LK_PFI
Applies to the ADM1172; link between the PFI pin and Potentiometer VR1; this allows the user to evaluate the
performance of PFI on voltage input or voltage output; deassert if using Connector J4-8 for PFI input
Insert for
ADM1172
PFI_IN
Applies to the ADM1172; allow VIN (Position A) or VOUT (Position B) to be linked with the PFI pin through
Potentiometer VR1
Position B
Table 3. LED Functions
LED Name Description
D1 ON indicator Indicates if the device is enabled
D2 PFO indicator Indicates if the PFO output is present
D4 VOUT indicator Indicates if the output voltage is present
D5 VIN indicator Indicates if the supply voltage is present

EVAL-ADM1171EBZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Power Management IC Development Tools EVAL BRD ADM1171
Lifecycle:
New from this manufacturer.
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