1
dc2062af
DEMO MANUAL DC2062A
Description
LT4363-1/LT4363-2
12V Systems
ISO-7637-2 Surge Stopper
Demonstration circuit 2062A showcases the LT
®
4363 surge
stopper in a 12V, 3A ISO-7637-2 application. Inputs of up
to 50VDC and load dumps of up to 100V are limited to
25V at the output. The MOSFET is protected against output
overloads by current limiting. Sustained overvoltage or
overcurrent conditions cause the LT4363 to turn off after
a timer delay. The LT4363-1 (DC2062A-A) latches off
and is reset by pulling SHDN low for at least 100μs. The
LT4363-2 (DC2062A-B) automatically retries after a cool
down delay; retry is inhibited if OV is higher than 1.275V.
Danger! High voltage testing should be performed by
qualified personnel only. As a safety precaution at least
two people should be present during high voltage testing.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
performance summary
Board Layout
DC2062A is designed to withstand load dump. This high
voltage is stood off by RUV4, ROV4, R7, RLED2, Q1, Q4.
Maximum input voltage is limited by Q1’s 100V BVDSS
rating. The permissible time at 100V is limited by MOS-
FET safe operating area (SOA) and R7, which dissipates
slightly less than 1.2W and is capable of doing so for at
least 500ms.
The minimum spacing is limited by 1206 pad spacing
where the gap between solder pads is 2mm, or just under
80mils. Thus, the spacing between the input plane and all
other board traces is maintained at a minimum of 2mm.
As a point of reference, a 2mm needle gap in air breaks
down well above 1kV.
Design files for this circuit board are available at
http://www.linear.com/demo
Specifications are at TA = 25°C
PARAMETER CONDITIONS MIN TYP MAX UNITS
Input supply Operating 5 12 23.5 V
DC Survival 50 V
500ms Transient 100 V
Reverse Input Protection DC Survival –30 V
1ms Transient –150 V
Output Regulation Voltage 23.5 25 25.4 V
Undervoltage Threshold 4 4.2 4.4 V
Retry Inhibit Threshold 18.2 19.1 20 V
Current Limit 3 3.8 4.6 A
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dc2062af
DEMO MANUAL DC2062A
Quick start proceDure
ISO-7637-2 Compliance
The DC2062A is fully compatible with electrical transients
in a 12V ISO-7637-2 system. Compliance testing was
performed by a third party company called TUV. Tests
were performed at level 4, which is the most extreme
condition an ISO-7637-2 system can face. The compli-
ance report can be found on the sidebar of the LT4363
product landing page.
A summary of the report is shown in Table 1.
Load Dump Ride Through
The DC2062A showcases the ability of the LT4363 to ride
through and suppress a 100V load dump pulse. While
the DC2062A can ride through load dump events, several
points should be kept in mind. First, the dissipation of
several components rises to significant levels during a
load dump event. Since this event lasts for approximately
500ms, these components are dissipating power for an
appreciable amount of time. RUV4 dissipates 200mW,
ROV4 dissipates 60mW, D1 dissipates 3.2W and R7 dis-
sipates nearly 1.2W. These components are dissipating
power for the duration of the 100V pulse and have been
rated appropriately.
Another consideration is MOSFET SOA. Q1 dissipates
an average of 80W throughout the time it is regulat-
ing a load dump pulse. While many modern MOSFETs
have advertised power ratings much higher than 80W,
these ratings are not indicative of performance in
surge stopper applications for the following reasons:
Table 1. TUV ISO-7637 Report Summary
CLASSIFICATION OF FUNCTIONAL STATUS
TEST
PULSE
LEVEL IV
REQUIREMENTS LEVEL PASSED
# OF PULSES/
DURATION NO DEVIATION
DEVIATION
WITHIN
SPECIFICATION
DOES NOT
COMPLY
NOT
PERFORMED
1 –100V –100V 5000 Pulses q Class A n Class A q q
2a +50V +50V 5000 Pulses n Class A q Class A q q
2b +10V +10V 10 Pulses q Class A n Class A q q
3a –150V –150V 1 Hour n Class A q Class A q q
3b +100V +100V 1 Hour n Class A q Class A q q
4 –7V –7V 3 Pulse q Class A n Class A q q
5 +87V +89V 3 Pulse n Class A q Class A q q
1) The power ratings only apply for operation in triode
and when the DUT is mounted on an infinite heat sink. 2)
The power capability of a MOSFET reduces significantly
when it is operated in saturation with a high VDS across it.
MOSFET manufacturers provide an SOA graph which
depicts the voltage and current conditions under which a
MOSFET can be expected to operate safely. When select-
ing MOSFETs for a surge stopper application this graph
must always be consulted carefully due to the fact that
the points on the graph were tested under the previously
discussed conditions.
Reverse Input Protection
The DC2062A features reverse protection circuitry that
protects downstream components from
reverse transients
of up to –150V. This number is limited by the BVDSS of
Q2. The reverse protection circuitry also protects against
reverse DC voltage of up to –30V.
DC2062A-A and DC2062A–B Options
The DC2062A-A is fitted with the LT4363-1 which latches
off after a timer delay in the presence of overvoltage or
overcurrent conditions. Once latched off the LT4363-1
may be restarted by pulsing the SHDN pin low for at least
100μs, or by briefly cycling power.
The DC2062A-B is fitted with the LT4363-2 which auto-
matically retries after a cool-down cycle. Retry is inhibited
by the OV pin, if the input is greater than 20V. Cool down
time is typically 22.8 seconds.
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dc2062af
DEMO MANUAL DC2062A
Quick start proceDure
Table 2.
Test Point LT4363 Pin
INPUT (Board Input)
DRAIN (Junction of Drains of Q1 & Q2)
GATE GATE
SNS SNS
OUT OUT
GND GND
DGATE (Q2 Gate)
VCC VCC
Operation
The shutdown pin, SHDN, is floating so that when power
is applied to the input, the LT4363 automatically turns on.
The LT4363 protects the load from destruction by regulating
the output voltage to a safe level during intervals of input
overvoltage. DC2062A is designed to regulate the output
at 25V. If the input voltage is less than 25V, power passes
through directly to the output. The output is sensed by
the R1/R2 divider and the FB pin. The GATE pin controls
Q1 to regulate the output voltage in the event the input
rises above 25V.
Overcurrent is sensed by RSNS and the SNS and OUT pins
of the LT4363. If the load current reaches 50mV/13mΩ,
the GATE pin will control Q1 to regulate the output cur-
rent at 3.8A.
In both overcurrent and overvoltage conditions, current is
sourced by the TMR pin into the timer capacitor, CTMR.
It charges and upon reaching 1.375V, causes the LT4363
to turn off the MOSFET. As previously mentioned the
LT4363-1 version latches off, while the LT4363-2 version
automatically tries to restart the load after a 22.8 second
cool-down interval.
The timer interval before the MOSFET turns off is variable,
depending on the type and severity of the fault, and ranges
from 135ms to 640ms. The cool-down time is 22.8s. For
the LT4363-2 version, automatic retry is inhibited by the
OV pin if the input remains higher than 20V, as set by the
ROV4-ROV6 divider. For the LT4363-1 version, the OV pin
becomes a ground pin (GND, Pin 7) and it is shorted to
ground by a 0Ω jumper at ROV6. The LT4363-1 version
simply latches off in response to a fault. Restart by pulling
SHDN low for at least 100μs, or by briefly disconnecting
the input supply.
The combined tolerances of the LT4363 and external re-
sistive dividers are approximately 4% for output voltage
regulation (FB pin), 5% for undervoltage (UV pin) and
retry inhibit threshold (OV pin), and 21% for current limit.
A performance summary is shown in a table on the
schematic diagram and is silk-screened on the front of
the demo board for easy reference.
Test Points
A summary of the test points and their related LT4363 pin
is shown in Table 2.
Small Turrets
No connection to any of the small turrets is necessary to
make the board operate—the LT4363 defaults to the ON
state. If the SHDN turret is left open, the board will turn
on when power is applied. Short this turret to ground to
turn off the LT4363.
F LT and ENOUT are open-collector outputs. If used, pull
up to the output or an output-derived external logic sup-
ply. There are no pull-ups included on DC2062A. F LT and
ENOUT have 100V ratings and can sink 100μA to less than
800mV. TMR is brought out to a turret for the purpose
of monitoring the waveform there. It may also be used to
connect external timer capacitors.
Quick Start
Connect a 12V supply to INPUT, and connect a load to
OUTPUT as shown in Figure 1. The circuit will turn on
automatically when power is applied, and green LED1
will show that the output is up. LED3 indicates that input
power is present. If the input voltage is increased above
25V, the output will shut off and LED1 will extinguish. The
output will remain off until the input is brought below 20V.
Similarly, if the input voltage is decreased to less than 4V
the output will shut off and LED1 will extinguish. It will
restart when the input rises above 5V.
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dc2062af
DEMO MANUAL DC2062A
To test ISO-7637-2 compliance, apply a transient to the
input as shown in Figure 2. Use a storage oscilloscope
to monitor both the input and the output, and use the
Quick start proceDure
LED3
INPUT
12V
GND
OUTPUT
GND
DC2062 F01
LED1
DC2062A
0 TO 3A
LOAD
NSG5500 trigger output to trigger the oscilloscope sweep.
The expected output to ISO7637-2 load dump pulse 5 is
shown in Figure 3.
Figure 1: Basic Test Setup
Figure 2: Testing ISO-7637-2 Transients.
LED3
INPUT
GND
OUTPUT
A
B
GND
DC2062 F02
LED1
DC2062A
0 TO 3A
LOAD
SCHAFFNER
NSG5500
OR
EQUILIVENT
STORAGE
OSCILOSCOPE
5
dc2062af
DEMO MANUAL DC2062A
Quick start proceDure
Figure 3: ISO-7637-2 Load Dump Event
parts List
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 1 CG CAP., X7R, 47nF, 100V, 20%, 0805 AVX, 08051C473MAT2A
2 1 CL CAP., ALUM., 33µF, 50V, 20%, SMT SUN ELECT., 50CE33LX
3 1 CSNUB CAP., X5R, 10nF, 500V, 20%, 1812 AVX, 18127C103MAT2A
4 1 CTMR1 CAP., X5R, 6.8µF, 6.3V, 20%, 0805 TDK C2012X5R0J685M
5 0 CTMR2 CAP., X7R, 4.7µF, 100V, 20%, 0805 OPT
6 1 C2 CAP., X7R, 100nF, 100V, 20%, 0805 AVX, 08051C104MAT2A
7 2 C4,CUV CAP., X7R, 10nF, 200V, 20%, 0805 AVX, 08052C103MAT2A
8 5 D2, D3, D4, D5, DLED DIODE, CURRENT LIMITING, SOD123 DIODES INC, BAV3004W
9 1 D1 DIODE, TVS, 60V, SMA-DIODE DIODES INC, SMAJ60A-13-F
10 2 D6, D7 DIODE, ZENER 15V, SOD323 DIODES INC, DDZ9702S
11 4 E2, E3, E5, E8 TP, TURRET, .094" MILL-MAX, 2501-2-00-80-00-00-07-0
12 6 E9, E10, E11, E12, E13, E14 TP, TURRET, .064" MILL-MAX, 2308-2-00-80-00-00-07-0
13 4 J1, J2, J3, J4 BANANA JACK, NON-INSULATED KEYSTONE, 575-4
14 2 LED1, LED2 LED, SMT GREEN, LED-ROHM-SML-010 ROHM, SML-010FT
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dc2062af
DEMO MANUAL DC2062A
parts List
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
15 1 LED3 LED, SMT RED, LED-ROHM-SML-010 ROHM, SML-010VT
16 1 Q1 MOSFET, N-CH,100V, TO-3PN FAIRCHILD, FQA140N10
17 1 Q2 MOSFET, N-CH,150V, SO8 FAIRCHILD, FDS86240
18 2 Q3, Q5 XTOR, NPN, 40V, SOT23 DIODES INC., MMBT3904-7-F
19 1 Q4 XTOR, NPN, 300V, SOT223 FAIRCHILD, PZTA42
20 1 RG RES., CHIP, 33Ω, 1/8W, 5% 0805 NIC, NRC10J330TRF
21 1 RLED1 RES., CHIP, 3kΩ 1/4W, 5% 1206 NIC, NRC12J302TR10F
22 1 RLED2 RES., CHIP, 249k, 1/4W, 1%, 1206 NIC, NRC12F2493TRF
23 1 RLED3 RES., CHIP, 200, 1/8W, 5%, 0805 NIC, NRC10J201TRF
24 1 RLED4 RES., CHIP, 3.3k, 1/4W, 5%, 1206 NIC, NRC12J332TRF
25 2 R2, RUV6 RES., CHIP, 10k, 1/4W, 1%, 0805 NIC, NRC10F1002TRF
26 1 RSNS RES., CHIP, SENSE, 0.013Ω, 1/4W, 5%, 1206 NIC, NCST12JR013JTRF
27 1 RSNUB RES., CHIP, 100Ω, 1/2W, 5%, 1210, PULSE PROOF NIC, NRCP25J101TRF
ALTERNATE PART NUMBER FOR RSNUB (3/4W PART) VISHAY, CRCW1210100RJNEAHP
28 1 RUV4 RES., CHIP, 23.2kΩ, 1/4W, 1%, 1206 NIC, NRC12F2322TRF
29 1 R1 RES., CHIP, 182k, 1/8W, 1%, 0805 NIC, NRC10F1823TRF
30 1 R3 RES., CHIP, 10Ω, 1/8W, 5% 0805 NIC, NRC10J100TRF
31 1 R7 RES., CHIP, 620, 1/4W, 5%, 1206 PULSE PROOF (FOR PROD ASSY) VISHAY, CRCW1206620RJNEAIF
32 0 R8 RES., CHIP, 240k, 1/8W, 5%, 0805 OPT
33 3 R9, R11, R12 RES., CHIP, 240k, 1/4W, 5%, 1206 NIC, NRC12J244TRF
34 1 R10 RES., CHIP, 10kΩ, 1/4W, 5%, 1206, PULSE PROOF VISHAY, CRCW120610K0JNEAIF
35 4 STANDOFF, NYLON 0.5" KEYSTONE, 8833 (SNAP ON)
DC2062A-A
1 0 COV CAP., 0805 OPT
2 0 ROV4 RES., 1%, 1206 OPT
3 1 ROV6 RES., CHIP, 0Ω, 0805 VISHAY, CRCW08050000Z0EA
4 1 U1 I.C., LT4363IDE-1, DFN12DE-4X3 LINEAR TECH., LT4363IDE-1
DC2062A-B
1 1 COV CAP., X7R, 10nF, 200V 20%, 0805 AVX, 08052C103MAT2A
2 1 ROV4 RES., CHIP, 140K, 1/4W, 1%, 1206 NIC, NRC12F1403TRF
3 1 ROV6 RES., CHIP, 10K, 1/4W, 1%, 0805 NIC, NRC10F1002TRF
4 1 U1 I.C., LT4363IDE-2, DFN12DE-4X3 LINEAR TECH., LT4363IDE-2
7
dc2062af
DEMO MANUAL DC2062A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
schematic Diagram
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS AND CAPACITORS ARE 0805.
*
INPUT
ASSY TYPE U1
DC2062A-A
DC2062A-B LT4363IDE-2
LT4363IDE-1
GND GND
OUTPUT
[ 2 ]
SHDN GND FLT ENOUT TMR GND
LED DRIVER
INPUT
DC OPERATING
DC SURVIVAL
UV
OV RETRY INHIBIT
SURGE RIDE-THROUGH
5V TO 23.5V
-30V TO +50V
19V
4.2V
ISO-7637-2
PULSE 5A
OUTPUT
OUTPUT REGULATION
MAXIMUM LOAD CURRENT
CURRENT LIMIT
24.5V
3A
3.8A
[ 2 ]
[ 1 ]
[ 1 ]
REVERSE BATTERY PROTECTION
DFN12DE-4X3
PIN 7
OV
GND
BEHAVIOR
LATCH OFF
AUTO RETRY
ROV4
OPT
140k
ROV6
0 OHM
10k
COV
OPT
10nF
INPUT OUTPUT
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
SAL A.PRODUCTION 31-11-402
__
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
SAL A.PRODUCTION 31-11-402
__
REVISION HISTORY
DESCRIPTION DATEAPPROVEDECO REV
SAL A.PRODUCTION 31-11-402
__
SIZE
DATE:
.VER.ON CI
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
04/11/2013, 12:38 PM
1 1
12V SYSTEM ISO-7637-2 SURGE STOPPER
KIM T.
SAL A.
B
LT4363IDE-1/-2
DEMO CIRCUIT 2062A
SIZE
DATE:
.VER.ON CI
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
04/11/2013, 12:38 PM
1 1
12V SYSTEM ISO-7637-2 SURGE STOPPER
KIM T.
SAL A.
B
LT4363IDE-1/-2
DEMO CIRCUIT 2062A
SIZE
DATE:
.VER.ON CI
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: (408)434-0507
Milpitas, CA 95035
Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
2
04/11/2013, 12:38 PM
1 1
12V SYSTEM ISO-7637-2 SURGE STOPPER
KIM T.
SAL A.
B
LT4363IDE-1/-2
DEMO CIRCUIT 2062A
GNDGND
C2
100nF
100V
C2
100nF
100V
RLED4
3.3k
1206
RLED4
3.3k
1206
Q3
MMBT3904
Q3
MMBT3904
1
2 3
D4
BAV3004W
D4
BAV3004W
21
U1 LT4363IDE-1/-2U1 LT4363IDE-1/-2
VCC 5
GND
9
FB 1
OUT 2
SNS 3
GATE 4
OV/GND
7
TMR
12
ENOUT
11
FLT
10
UV
8
EP
13
SHDN
6
R7
620
1206
R7
620
1206
R10
10k
1206
R10
10k
1206
LED1
ZSM-T3020-R
GREEN
LED1
ZSM-T3020-R
GREEN
2 1
ROV6
*
ROV6
*
E9E9
R1
182k
R1
182k
DLED
BAV3004W
DLED
BAV3004W
21
CUV
10nF
200V
CUV
10nF
200V
Q1
FQA140N10
Q1
FQA140N10
3
1
2
E14E14
J3J3
D7
DDZ9702S
15V
D7
DDZ9702S
15V
12
LED2
ZSM-T3020-G
GREEN
LED2
ZSM-T3020-G
GREEN
2 1
LED3
ZSM-T3020-R
RED
LED3
ZSM-T3020-R
RED
21
Q4
PZTA42
Q4
PZTA42
1
3 4
CL
33uF
50V
50CE33LX
SUNCON
CL
33uF
50V
50CE33LX
SUNCON
E11E11
RG
33
RG
33
ROV4
*
1206
ROV4
*
1206
D2
BAV3004W
D2
BAV3004W
21
D3
BAV3004W
D3
BAV3004W
2 1
RLED3
200
RLED3
200
E10E10
C4
10nF
200V
C4
10nF
200V
R11
240k
1206
R11
240k
1206
D5
BAV3004W
D5
BAV3004W
2 1
J4J4
D1
SMAJ60A
68V
D1
SMAJ60A
68V
12
Q2
FDS86240
Q2
FDS86240
2
4
7
3
1 6
8
5
COV
*
200V
COV
*
200V
J1J1
DGATEDGATE
RUV4
23.2k
1206
RUV4
23.2k
1206
CTMR2
OPT
CTMR2
OPT
SNSSNS
R12
240k
1206
R12
240k
1206
E13E13
CG
47nF
100V
CG
47nF
100V
CSNUB
10nF
1812
500V CSNUB
10nF
1812
500V
E3E3
OUTOUT
Q5
MMBT3904
Q5
MMBT3904
1
2 3
GATEGATE
RSNS
0.013
1206
RSNS
0.013
1206
RLED2
249k
1206
RLED2
249k
1206
E12E12
J2J2
R8
240k
OPT
R8
240k
OPT
INPUTINPUT
E5E5
RSNUB
100
1210
RSNUB
100
1210
R2
10k
R2
10k
D6
DDZ9702S
15V
D6
DDZ9702S
15V
1 2
E8E8
RUV6
10k
RUV6
10k
E2E2
R3
10
R3
10
CTMR1
6.8uF
6.3V
CTMR1
6.8uF
6.3V
RLED1
3k
1206
RLED1
3k
1206
DRAINDRAIN
VCCVCC
R9
240k
1206
R9
240k
1206
8
dc2062af
DEMO MANUAL DC2062A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 2013
LT 1013 • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LT C ) provides the enclosed product(s) under the following AS IS conditions:
This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LT C for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LT C from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LT C assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LT C currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LT C applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
