EVAL-ADM1184 [ADI]
Evaluation Kit for ADM1184 ±0.8% Accurate Quad Voltage Monitor; 评估板ADM1184的± 0.8 ％精度的四通道电压监控器
| 型号： | EVAL-ADM1184 |
| 厂家： | 
ADI |
| 描述： | Evaluation Kit for ADM1184 ±0.8% Accurate Quad Voltage Monitor |
| 文件： | 总8页 (文件大小：287K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Evaluation Kit for ADM1184
± ±08ꢀ Aꢁꢁuratꢂ ꢃuaꢄ ꢅoltaꢆꢂ Monitor
EꢅAL-ADM1184
The ADM1184 monitors four separate voltage rails. Each rail
is adjustable using the on-board rotary switches or dedicated
switches, allowing the user to investigate the result of altering
each of the monitored input voltages and to simulate fault
FEATURES
Evaluation kit for the ADM1184 0.8ꢀ accurate quad
voltage monitor
LEDs provide a clear visual indication of device operation
Dedicated power and enable/disable switches
On-board test points allow examination of ADM1184
operation
conditions.
LEDs provide a visual indication of the status of the main
supply voltage, of the four monitored voltage rails, of the four
outputs (OUT1 to OUT3), and of the system power-good signal
(PWRGD).
GENERAL DESCRIPTION
The EVAL-ADM1184 evaluation kit demonstrates the
operation of the ADM1184 as a quad voltage monitor in
a multiple supply system.
EVALUATION KIT CONTENTS
ADM1184 main evaluation board
2 ADM1184 samples
DIGITAL PHOTO OF ADM1184 EVALUATION BOARD
Figure 1.
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
Fax: 781.461.3113
www.analog.com
©2008 Analog Devices, Inc. All rights reserved.
EꢅAL-ADM1184
TABLE OF CONTENTS
Features .............................................................................................. 1
Powering the Evaluation Board ..................................................5
Theory of Operation.....................................................................5
Simulating a Power-Up Sequence ...............................................5
Observing Fault Conditions ........................................................5
Evaluation Board Schematics...........................................................6
Ordering Informations......................................................................8
Bill of Materials..............................................................................8
Ordering Guide .............................................................................8
ESD Caution...................................................................................8
General Description......................................................................... 1
Evaluation Kit Contents................................................................... 1
Digital Photo Of ADM1184 Evaluation Board............................. 1
Revision History ............................................................................... 2
Evaluation Board Hardware............................................................ 3
Connector, Switch, Jumper, LED, and Test Point Functions .. 3
Evaluation Board Operation ........................................................... 5
ADM1184 Samples....................................................................... 5
REVISION HISTORY
10/08—Revision 0: Initial Version
Rev. 0 | Page 2 of 8
EꢅAL-ADM1184
EꢅALUATION BOARD HARDWARE
CONNECTOR, SWITCH, JUMPER, LED, AND TEST POINT FUNCTIONS
Table 1. Connector Functions
Pin
Name
Function
J1
Power connector
J1-1: Connects the positive terminal of the bench power supply to the evaluation board
J1-2: Connects the ground terminal of the bench power supply to the evaluation board
J3-1: Connects a 9 V power supply to the evaluation board
J3
Terminal block
J3-2: Connects a 9 V power supply to ground
Table 2. Switch Functions
Switch
Description
Position
9 V
Function
S0
Switch for powering board on/off
Set to this position when powering the board via J3
Set to this position when powering the board via J1
Enables Regulator U1
VCC
S1
S2
S3
S4
Switch for turning on/off the 3.3 V rail
which is monitored by the VIN1 pin
On position
Off position
On position
Off position
On position
Off position
On position
Off position
N/A
Disables Regulator U1
Switch for turning on/off the 2.5 V rail
which is monitored by the VIN2 pin
Enables Regulator U2
Disables Regulator U2
Switch for turning on/off the 1.8 V rail
which is monitored by the VIN3 pin
Enables Regulator U3
Disables Regulator U3
Switch for turning on/off the 1.5 V rail
which is monitored by the VIN4 pin
Enables Regulator U4
Disables Regulator U4
VR1
VR2
VR3
VR4
Rotary switch
Rotary switch
Rotary switch
Rotary switch
Reduces the 3.3 V supply level when the switch is turned clockwise
Reduces the 2.5 V supply level when the switch is turned clockwise
Reduces the 1.8 V supply level when the switch is turned clockwise
Reduces the 1.5 V supply level when the switch is turned clockwise
N/A
N/A
N/A
Table 3. Jumper Functions
Jumper Description
Default
J2
J5
J6
J8
Connects J1-1 to J3-1
Not inserted
Inserted
Inserted
Inserted
Inserted
Connects VR2 to the feedback pin of Regulator U2
Connects VR3 to the feedback pin of Regulator U3
Connects VR1 to the feedback pin of Regulator U1
Connects VR4 to the feedback pin of Regulator U4
J12
Table 4. LED Functions
LED
D1
D2
D3
D4
D5
D6
D7
D8
D9
Name
Function
VCC
A red LED indicates that the board is powered on
3.3 V (VIN1)
2.5 V (VIN2)
1.8 V (VIN3)
1.5 V (VIN4)
OUT1
OUT2
OUT3
PWRGD
A yellow LED indicates the status of the 3.3 V supply voltage
A yellow LED indicates the status of the 2.5 V supply voltage
A yellow LED indicates the status of the 1.8 V supply voltage
A yellow LED indicates the status of the 1.5 V supply voltage
A green LED indicates when the OUT1 output is asserted
A green LED indicates when the OUT2 output is asserted
A green LED indicates when the OUT3 output is asserted
A green LED indicates when the PWRGD output is asserted
Rev. 0 | Page 3 of 8
EꢅAL-ADM1184
Table 5. Test Point Functions
Test Point Function
1_5V
1_8V
2_5V
3_3V
GND
Connected to the 1.5 V rail
Connected to the 1.8 V rail
Connected to the 2.5 V rail
Connected to the 3.3 V rail
Connected to ground
GND1
GND2
GND3
OUT1
OUT2
OUT3
PWRGD
VIN1
Connected to ground
Connected to ground
Connected to ground
Connected to the OUT1 pin of the ADM1184 device
Connected to the OUT2 pin of the ADM1184 device
Connected to the OUT3 pin of the ADM1184 device
Connected to the PWRGD pin of the ADM1184 device
Connected to VIN1 pin of the ADM1184 device
Connected to VIN2 pin of the ADM1184 device
Connected to VIN3 pin of the ADM1184 device
Connected to VIN4 pin of the ADM1184 device
VIN2
VIN3
VIN4
Rev. 0 | Page 4 of 8
EꢅAL-ADM1184
EꢅALUATION BOARD OPERATION
of the PWRGD output. After PWRGD is asserted, if any of the
four monitored supplies drops below its programmed threshold,
the corresponding OUTx output and the PWRGD output are
deasserted. If the supply monitored by VIN4 drops below it’s
programmed threshold, the PWRGD output is only deasserted.
ADM1184 SAMPLES
Two loose ADM1184 samples are included in the evaluation
kit. If the board does not have a device soldered in place, place
a single sample in the socket labeled U6 before powering on the
evaluation board.
SIMULATING A POWER-UP SEQUENCE
POWERING THE EVALUATION BOARD
Begin with all four rotary positions turned fully counter-
clockwise. Power on each of the four voltage rails by switching
the associated dedicated switch, S1 to S4, to the on position.
The rails may be powered on in any order. Yellow LEDs (D2,
D3, D4, and D5) provide a visual indication of the status of each
of the four voltage rails, while green LEDs (D6, D7, D8, and D9)
indicate when the OUT1 to OUT3 outputs and the system
PWRGD signal are asserted. The 190 ms delay associated with
the assertion of the power-good signal is easily observed.
There are two methods of powering the EVAL-ADM1184:
connect a 9 V power supply through J3 or connect a bench
supply through J1. When using a 9 V power supply, be sure to
place S2 to the 9 V position; alternatively, when using a bench
supply, adjust S2 to the VCC position.
THEORY OF OPERATION
Four voltage rails are monitored by the ADM1184. Resistor
networks external to the VIN1, VIN2, VIN3, and VIN4 pins
set the trip points for the monitored rails, 3.3 V, 2.5 V, 1.8 V,
and 1.5 V.
OBSERVING FAULT CONDITIONS
Fault conditions may be investigated by using the four rotary
switches, VR1 to VR4. By turning a rotary switch clockwise, the
associated input voltage is reduced.
Output OUT1 to Output OUT3 are solely dependent on their
associated input (that is, VIN1, VIN2, or VIN3). Before the
voltage on a VINx input reaches 0.6 V, the corresponding
output is switched to ground. When VINx detects 0.6 V, OUTx
is asserted after a 30 μs delay.
Each rotary switch (VR1 to VR4) controls the voltage at each
of the VIN1 to VIN4 inputs. As the rotary switch is turned
clockwise, the voltage monitored by VINx is reduced. When
the voltage at the VINx input pin drops below 0.6 V, OUTx is
switched to ground. The PWRGD output is also deasserted
immediately.
When all four monitored supplies exceed their programmed
thresholds a system power good signal (PWRGD) is asserted.
There is an internal 190 ms delay associated with the assertion
Figure 2. ADM1184 Evaluation Board Silkscreen
Rev. 0 | Page 5 of 8
EꢅAL-ADM1184
EꢅALUATION BOARD SCHEMATICS
0 0 2 6 - 7 6 0 7
Figure 3. ADM1184 Evaluation Board Schematic, Page 1
Rev. 0 | Page 6 of 8
EꢅAL-ADM1184
3
0 - 0 6 6 7 7
Figure 4. ADM1184 Evaluation Board Schematic, Page 2
Rev. 0 | Page 7 of 8
EꢅAL-ADM1184
ORDERING INFORMATION
BILL OF MATERIALS
Table 6.
Qty
Reference Designator
Description
Part No.1
2
C1, C16
0.1 μF, 0603 capacitor
1 μF, 0603 capacitor
FEC 432210
FEC 3188840
FEC 3019366
FEC 9753893
FEC 1021302
FEC 1318247
FEC 1318243
FEC 151789
FEC 1022247
FEC 224959
FEC 1081239
FEC 9332383
8
C2, C4, C5, C7, C9, C10, C11, C13
4
C3, C6, C8, C12
470 pF, 0402 capacitor
10 μF, 0603 capacitor
0805 red LED
2
C14, C15
1
D1
4
D2, D3, D4, D5
0805 yellow LED
4
D6, D7, D8, D9
0805 green LED
1
J1
2-pin terminal block, connector/power
Jumper, SIP-2P
5
J2, J5, J6, J8, J12
1
J3
DC barrel power connector, connector\barrel
NPD SMD transistor, SOT-23
1 kΩ, 0805 resistor
8
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
21
R1, R2, R3, R8, R14, R17, R25, R26, R27, R28, R29, R30,
R31, R32, R33, R36, R40, R41, R49, R53, R54
1
2
1
1
2
1
2
3
2
1
1
1
1
1
1
1
1
1
5
4
16
R4
162 kΩ, 0805 resistor
36 kΩ, 0805 resistor
FEC 1160272
FEC 1108905
FEC 1140356
FEC 1141007
FEC 1160268
FEC 9333185
FEC 9332782
FEC 9332405
FEC 9332464
FEC 9333282
FEC 9332626
FEC 9331522
FEC 9333444
FEC 9333177
FEC 9332839
FEC 9333436
FEC 9333657
FEC 9332715
FEC 1123875
FEC 9608290
FEC 8731144
R5, R7
R6
115 kΩ, 0805 resistor
76.8 kΩ, 0805 resistor
140 kΩ, 0805 resistor
390 kΩ, 0805 resistor
200 kΩ, 0805 resistor
100 kΩ, 0805 resistor
110 kΩ, 0805 resistor
470 kΩ, 0805 resistor
150 kΩ, 0805 resistor
75 kΩ, 0603 resistor
R9
R10, R21
R11
R12, R48
R13, R19, R52
R15, R20
R16
R18
R22
R23
620 kΩ, 0805 resistor
39 kΩ, 0805 resistor
R24
R43
220 kΩ, 0805 resistor
62 kΩ, 0805 resistor
R44
R46
910 kΩ, 0805 resistor
1.8 kΩ, 0805 resistor
SPDT slide switch, SW-SPDT-SLIDE
Trimmer potentiometer, 1 M, VRES_ROTARY
Testpoint
R47
S0, S1, S2, S3, S4
VR1, VR2, VR3, VR4
1_5V, 1_8V, 2_5V, 3_3V, GND, GND1, GND2, GND3,
OUT1, OUT2, OUT3, PWRGD, VIN1, VIN2, VIN3, VIN4
4
1
1
1
U1, U2, U3, U4
ADP3334ARM adjustable LDO regulator, MS08
ADM1184 quad voltage monitor MS010
10-pin MSOP socket, MS010-SKT
Free issue by Analog Devices
Free issue by Analog Devices
Abrel Products 6560102211
FEC 9489444
U5
U6
U7
3-terminal 0.1 A positive voltage regulator, TO-92
1 FEC = Farnell Electronics.
ORDERING GUIDE
Model
EVAL-ADM1184EBZ1
ESD CAUTION
Description
ADM1184 Evaluation Kit
1 Z = RoHS Compliant Part.
©2008 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
EB07766-0-10/08(0)
Rev. 0 | Page 8 of 8
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