Evaluation Board User Guide
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UG-174
Evaluation Kit for the ADM2914 and the ADM12914
FEATURES
Input voltage of 8 V to 20 V
6 adjustable input voltages including 2 negative
Full features evaluated on a single board
LED indicated voltage and output status
Configurations can be easily adjusted with bare hands
Development area allows custom add-on circuits
Test points for easy probing
PACKAGE CONTENTS
EVAL-ADM2914EBZ evaluation board
GENERAL DESCRIPTION
The ADM2914/ADM12914 are quad voltage monitoring devices
designed to simultaneously monitor undervoltage and overvoltage
conditions on up to four supply rails. There are four undervoltage
and four overvoltage comparators integrated internally to provide
common
required comparators and digital gating necessary to achieve single
common
0.5 V reference. Users can program the monitoring voltage level
through the external voltage dividers.
UV
and OV output signals. This device integrates the
UV
and OV reset signals. Each input is compared with a
When monitoring negative supplies, it has a 1 V buffered
reference output that can be used. The tristate SEL pin is used to
configure the polarity of the third and fourth inputs that determine
if they are used for monitoring positive or negative supplies.
The ADM2914 and ADM12914 are available in two models: the
ADM2914-1/ADM12914-1 and the ADM2914-2/ADM12914-2.
• The ADM2914-1/ADM12914-1 offer a latching
that can be cleared by toggling the
• The ADM2914-2/ADM12914-2 have a disable pin that is
used as an override to disable both outputs signals.
An internal shunt regulator enables the ADM2914/ADM12914
devices to be used on higher voltage systems. However, this
requires a resistor to be placed between the main supply rail
and the V
greater than 10 mA.
This evaluation board is designed to fully evaluate the features
of the ADM2914 and the ADM12914, including supply monitoring
for both positive and negative rails, monitoring polarity selection,
timer function, and
pin to limit the current flow into the VCC pin to no
CC
LATCH
/DIS functions.
LATCH
OV
output
input pin.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
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UG-174 Evaluation Board User Guide
TABLE OF CONTENTS
Features .............................................................................................. 1
Package Contents .............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Evaluation Board Hardware ............................................................ 3
Switch, Jumper, LED, and Connector Functions ..................... 3
REVISION HISTORY
6/10—Revision 0: Initial Version
Evaluation Board Overview .............................................................5
Evaluation Board Schematics ...........................................................6
Ordering Information .................................................................... 10
Bill of Materials ........................................................................... 10
Rev. 0 | Page 2 of 12
Evaluation Board User Guide UG-174
EVALUATION BOARD HARDWARE
SWITCH, JUMPER, LED, AND CONNECTOR FUNCTIONS
Table 1. Switch Functions
Switch Description Default
S1 Input polarity selection switch.
6V2 = all inputs positive. 6V2
N/C = V1 to V3 positive and V4 negative.
GND = V1 and V2 positive, and V3 and V4 negative.
S2
ADM2914-1
ADM2914-2
GND = enable outputs.
S3 Timer capacitor control switch.
S3-1 Connect the TIMER pin to C7 and C16.
On = connect. Disconnected
Off = disconnect.
S3-2 Connect the TIMER pin to C15.
On = connect. Connected
Off = disconnect.
S3-3 Connect the TIMER pin to C14.
On = connect. Disconnected
Off = disconnect.
S3-4 Connect the TIMER pin to VCC.
On = connect. Disconnected
Off = disconnect.
S4 IC input selection.
5 V = Connect the VCC pin of the ADM2914 to the output of U3 (adjustable 5 V).
S5 Input selection switch.
+/+ = The inputs of the ADM2914 are connected to monitors adjustable 1 V, 2.5 V, 3.3 V, and 5 V. +/+
+/− = The inputs of the ADM2914 are connected to monitors adjustable +1 V, +2.5 V, +3.3 V, and −5 V.
−/− = The inputs of the ADM2914 are connected to monitors adjustable +1 V, +2.5 V, −3.3 V, and −5 V.
/DIS control switch.
LATCH
6V2 = OV
GND = OV
6V2 = disable outputs, OV
Main supply = connect the V
shunt resistor R
output not latched/clear latched OV output.
output latched.
and UV outputs are not asserted except UVLO.
to be placed.
SHUNT
pin of the ADM2914 to the main input of the board. This requires the
CC
6V2
GND
5 V
Table 2. Jumper Functions
Jumper Description Default
J9 Deassert to disable the adjustable 1 V output. Asserted
J10 Deassert to disable the adjustable 2.5 V output. Asserted
J2
J4
J6 Deassert to disable the adjustable −5 V output. Asserted
J5 Deassert to disable the adjustable −3.3 V output. Asserted
Deassert to disable the adjustable 3.3 V output. Disabling the 3.3 V output also disables the −3.3 V,
+2.5 V, and +1 V outputs.
Deassert to disable the adjustable 5 V output. Disabling the 5 V output may disable the input supply to
the ADM2914 unless it is powered from the main supply.
Asserted
Asserted
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UG-174 Evaluation Board User Guide
Table 3. LED Functions
LED Corresponding Node Description
D6 6V2 The LEDs used to indicate the status of the on-board voltage rails.
D7 1V The LEDs used to indicate the status of the on-board voltage rails.
D8 2.5V The LEDs used to indicate the status of the on-board voltage rails.
D4 3.3V The LEDs used to indicate the status of the on-board voltage rails.
D3 5V The LEDs used to indicate the status of the on-board voltage rails.
D2
D1
OV
UV
Table 4. Connector Functions
Connector Description
J1 Input power connector. Connect J1 to the 8.5 V to 20 V voltage source.
J3 Input power connector for wall adaptor. Connect J3 to the 8.5 V to 20 V power adaptor. Tip negative.
The LEDs used to indicate the status of the ADM2914 outputs.
The LEDs used to indicate the status of the ADM2914 outputs.
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Evaluation Board User Guide UG-174
EVALUATION BOARD OVERVIEW
09186-001
Figure 1. Evaluation Board
8.5V~20V I NP UT
LM78L62
6.2V
ADP3334
ADP3334
ADP1712
ADP1712
ADM8828
ADM8660
+1V ADJUSTABLE
+2.5V ADJUSTABL E
+3.3V ADJUSTABL E
–3.3V ADJUSTABLE
+5V ADJUSTABLE
–5V ADJUSTABLE
Figure 2. Evaluation Board Power Architecture
RESISTOR
DIVIDER
RESISTOR
DIVIDER
RESISTOR
DIVIDER
RESISTOR
DIVIDER
RESISTOR
DIVIDER
RESISTOR
DIVIDER
ADM2914
ADM12914
09186-002
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UG-174 Evaluation Board User Guide
EVALUATION BOARD SCHEMATICS
09186-003
Figure 3. Evaluation Board Schematic 1
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Evaluation Board User Guide UG-174
09186-004
Figure 4. Evaluation Board Schematic 2
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UG-174 Evaluation Board User Guide
09186-005
Figure 5. Evaluation Board Schematic 3
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Evaluation Board User Guide UG-174
09186-006
Figure 6. Evaluation Board Schematic 4
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UG-174 Evaluation Board User Guide
ORDERING INFORMATION
BILL OF MATERIALS
Table 5.
Name Part Description Part Number Stock Code
−3V3, −5V, LATCH/DIS, OV, UV, 1V, 2V5, 3V3, 5V,
6V2, REF, REG4FB, REG4FB1, REG4IN, REG4IN2,
SEL, TMR, VCC, VH1 to VH4, VL1 to VL4
C1 Capacitor, 0.33 μF, 1206, 10%, 25 V C1206C334K3RACTU FEC 1650900
C2, C3
C4, C5
C7
C8 to C10, C12 Capacitor, 0805, 2.2 μF, 10 V, X7R, ±10% CC0805KKX7R6BB225 FEC 9402152
C11, C13, C19, C22 Capacitor, 0603, 1μF, 10 V CC0603ZRY5V6BB105 FEC 3188840
C14 Capacitor, 0805, 10 pF, 100 V, 5% MCCA000390 FEC 9406239
C15 Capacitor, 0805, 1 nF, 50 V, 5% 08055A102JAT2A FEC 317457
C16
C34 Capacitor, 0805, 0.01 μF, 10% CC0805KRX7R8BB103 FEC 3019767
D1 to D4, D6 to D8 Green, 0805, chip LED KP-2012SGC FEC 1318243
GND Red test point 20-313137 FEC 8731144
J1 2-pin terminal block (5 mm pitch) FEC 151-785
J2, J4 to J6, J9, J10
J3 2.1 mm, dc barrel power connector DC10A FEC 224959
Q1 to Q6
R1, R44, R45 51 kΩ resistor, 0805, ±1% MC 0.1W 0805 1% 51K FEC 9333339
R2 220 kΩ resistor, 0805, ±1% MC 0.1W 0805 1% 220K FEC 9332839
R3 to R5, R1,1 R29, R34 100 kΩ resistor, 0805, ±5% RC0805JR-07100KL FEC 9234250
R6 604 kΩ resistor, 0805, ±0.1% MCTC0525B6043T5E FEC 1576103
R7, R12, R14, R28, R30, R33, R35, R40 to R43 1 kΩ resistor, 0.1 W, 0805, ±1% WCR0805-1K0FI FEC 1099800
R8 51.1 kΩ resistor, 0603, ±0.1% PCF0603R 51K1BI.T1 FEC 1160386
R9 49.9 kΩ resistor, 0805, ±1% CRCW080549K9FKEA FEC 1469934
R10 120 kΩ resistor, 0805, ±1% MC 0.1W 0805 1% 120K FEC 9332510
R13 3.6 kΩ resistor, 0805, ±1% MC 0.1W 0805 1% 3K6 FEC 9333118
R15 9.31 kΩ resistor, 0805, ±0.1% MCTC0525B9311T5E FEC 1575897
R16 357 kΩ resistor, 0805, ±0.1% PCF0805R-357KBT1 FEC 1353265
R17 634 kΩ resistor, 0805, ±0.1% PCF0805R 634KBI.T1 FEC 1160299
R18, R23 14.3 kΩ resistor, 0603, ±0.1% PCF0603R-14K3BT1 FEC 1353120
R19 7.32 kΩ resistor, 0805, ±0.1% PCF0805R 7K32BI.T1 FEC 1160193
R20 44.2 kΩ resistor, 0805, ±0.1% PCF0805R-44K2BT1 FEC 1353276
R21, R24 64.9 kΩ resistor, 0603, ±0.1% PCF0603R-64K9BT1 FEC 1353180
R22 392 kΩ resistor, 0805, ±0.1% PCF0805R 392KBI.T1 FEC 1160287
R25 162 kΩ resistor, 0603, ±0.1% PCF0603R-162KBT1 FEC 1353121
R26 8.2 kΩ resistor, 0805, ±1% MC 0.1W 0805 1% 8K2 FEC 9333584
R27 4.12 kΩ resistor, 0805, ±0.1% PCF0805R-4K12BT1 FEC 1353280
R31 11.8 kΩ resistor, 125 mW, ±1% CRCW080511K8FKEA FEC 1258438
R32 29.4 kΩ resistor, 125 mW, ±1% CRCW080529K4FKEA FEC 1152323
R36, R39 39.2 kΩ resistor, 0603, ±0.1% PCF0603R-39K2BT1 FEC 1353166
Red test point 20-313137 FEC 873 1144
50 V electrolytic capacitor, Case B,
low ESR, 1 μF, 20%
16 V electrolytic capacitor, Case B,
10 μF, 20%
0805, capacitor footprint
(not inserted), user defined
Through-hole capacitor
(not inserted), user defined
2-pin (0.1" pitch) header and
shorting shunt, jumper socket red
General-purpose NPN SMD transistor,
BC850C, SOT-23
EEEFC1H1R0R FEC 9694528
EEEFK1C100R FEC 9695648
Not inserted Not inserted
Not inserted Insert low profile sockets
M20-9990246 and
M7566-05
BC850C FEC 1081241
FEC 1022247 and
FEC 150411
Rev. 0 | Page 10 of 12
Evaluation Board User Guide UG-174
Name Part Description Part Number Stock Code
R37 39 kΩ resistor, 0603, ±0.1% ERA3AEB393V FEC 1577627
R38 4.32 kΩ resistor, 0603, ±0.1% PCF0603R 4K32BI.T1 FEC 1160343
R_SHUNT Resistor, 1206 Not populated Not applicable
S1 Slide switch, SP 3 POS, VERT STSSS9131 FEC 1123876
S2, S4 Slide switch, SP 2 POS, VERT STSSS9121 FEC 1123875
S3 4-way SMD switch (SW\4DIP) A6S-4101 FEC 9901868
S5 Switch slide 4P3T, 30 V, right angle EG4319 Digi-Key EG1915-ND
U1
U2, U3
U4
U5 6.2 V voltage regulator, 78L62, TO-92-3 LM78L62ACZ FEC 9490213
U6, U7 ADP1712 adjustable LDO, TSOT-5 ADP1712AUJZ-R7 ADP1712AUJZ-R7
U8 ADM2914, 16-lead QSOP OTS-16(28)-0.635-02 Abrel OTS-16(28)-0.635-02
U9
VR1, VR2, VR4 50 kΩ trimmer M63M503KB30T607 FEC 9608257
VR3 5 kΩ trimmer M63M502KB30T607 FEC 9608222
X1 to X16
ADM8828, switched-capacitor voltage
inverter with shutdown, SOT-23-6
ADP3334 adjustable LDO regulator,
MSOP-8
ADM8660, CMOS switched-capacitor
voltage converter SOIC-8
4-channel supervisory circuit
footprint, QSOP-16
Patchwork area, keep holes
free of solder
ADM8828ARTZ ADM8828ARTZ
ADP3334ARMZ ADP3334ARMZ
ADM8660ARZ ADM8660ARZ
Not populated Not applicable
Not applicable Not applicable
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UG-174 Evaluation Board User Guide
NOTES
ESD Caution
ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection
circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
Legal Terms and Conditions
By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions
set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you
have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc.
(“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal,
temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided
for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional
limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term
“Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including
ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may
not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to
promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any
occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board.
Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice
to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO
WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED
TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL
PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF
THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE
AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable
United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of
Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby
submits to the pers onal jurisdiction and venu e of such courts. The United Nations Conventi on on Contracts for the Internation al Sale of Goods shall not apply to this Agreement and is expressly disclaimed.
©2010 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
UG09186-0-6/10(0)
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