Linear LTC7000 Quick setup guide

1
dc2537af
DEMO MANUAL DC2537A
DESCRIPTION
LTC7000
Fast High Voltage Protected
High Side NMOS Static Switch Driver
Demonstration circuit 2537A is a 135V protected, high
side switch featuring the LT C
®
7000. The demo board is
designed to switch a 5.5A output load from input voltages
from 8V to 135V. The wide input range and low shut-
down current (1µA typical) make it suitable for automo-
tive, industrial, medical instrument and telecom applica-
tions. This board offers a low 50ns (typical) propagation
delay, fast switching times (<10ns) and 100% duty cycle
operation.
The LTC7000 is a fast high voltage protected high side
N-channel MOSFET driver. An internal charge pump fully
enhances an external N-channel MOSFET switch, allowing
it to remain on indefinitely. Its powerful gate driver can
drive large gate capacitance MOSFETs with very short
transition times, ideal for both high frequency switch-
ing and static switch applications. The LTC7000 operates
over a 3.5V to 135V input supply range. When an external
current sense resistor and internal comparator sense that
the switch current has exceeded a preset level, a fault flag
is asserted and the switch is turned off after a period of
time set by an external timing capacitor. After a cooldown
period, the LTC7000 can be configured to automatically
retry or remain off until input is cycled. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Devices, Inc. All other trademarks are the property of their respective owners.
PERFORMANCE SUMMARY
The demo board includes input capacitors and output
diode to accommodate input and output supply induc-
tance when switching loads. The switch can be controlled
directly with external signal or using the on-board on/off
switch. A single-shot pulse generator is included for evalu-
ating switching times while limiting output power. Optional
auxiliary VCC input accommodates gate power associated
with high frequency switching. Positions for RC delay net -
work to control inrush current are also included.
The LTC7000 data sheet gives a complete description of
the part, operation and application information. The data
sheet must be read in conjunction with this demo manual
for demo circuit 2537A. Proper board layout is essential
for maximum thermal and electrical performance. See the
data sheet sections for details. The LTC7000 is available
in 16-lead MSOP package and three operating junction
temperature grades (extended and industrial –40°C to
125°C, high temp automotive –40°C to 150°C and a mili-
tary grade –55°C to 150°C.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2537A
Specifications are at TA= 25°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage 135 V
IOUT Output Current 5.5 A
Insertion Drop VIN – VOUT, 5.5A Load, Input to Output Terminals 150 mV
VIN Start-Up Voltage VINP = 4V
100kΩ Load
8.0
7.0
V
V
VCCUV VCC Undervoltage Lockout VCC Rising
VCC Falling
Hysteresis
6.5
5.8
7.0
6.4
0.6
7.5
6.9
V
V
V
Overcurrent to VOUT Low Turn-On into a 10A Resistive Load 19 µs
Input to Output Propagation Delay VIN = 135V, 50Ω Load, INP = 2.2V to VOUT = 13.5V 50 ns
Output Rise Time VIN = 135V, 50Ω Load, 10% to 90% 6.5 ns

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dc2537af
DEMO MANUAL DC2537A
QUICK START PROCEDURE
Refer to Figure 1 for proper measurement equipment
setup and follow the procedure below:
NOTE:When measuring the output voltage during switch-
ing transitions, care must be taken to avoid a long ground
lead on the oscilloscope probe. Measure the output volt-
age by touching the probe tip and ground ring directly
across the output capacitor as shown in Figure 2.
1. Place SW1 to OFF position. Move JP1 from the PULSE
(default position) to ON/OFF position (load on continu-
ously when SW1 is ON).
2. With input power supply set to zero volts and power
off, connect the input power supply to +VIN and GND.
3. With power off, connect load from +VOUT to GND.
4. Turn on the input power supply and increase the input
voltage slowly to 9V minimum. The input range is up
to 135V but hot-plugging with long leads may result
in input voltages in excess of 135V.
5. Place SW1 to ON position.
6. Check for the proper output voltage using a voltmeter.
Output voltage should be close to input voltage.
NOTE: If there is no output, temporarily disconnect the
load and cycle SW1 (the ON/OFF switch) or press reset
pushbutton SW2. If output is good, the load may be
set too high.
7. Once the proper output voltage is established, adjust
the load, if desired, to test current limit.
8. Placing SW1 to OFF position, moving JP1 to PULSE
position then placing SW1 in ON position will allow
pulse operation. Pushing SW2 will turn the high side
switch on for 300µs time.
9. Placing SW1 to OFF position, moving JP1 to INPUT
position connects INPUT terminal to LTC7000 INP pin.
An INPUT pin voltage of 2.2V or more will turn-on the
high side switch.
Figure 1. Proper Measurement Equipment Setup

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dc2537af
DEMO MANUAL DC2537A
QUICK START PROCEDURE
TYPICAL PERFORMANCE CHARATERISTICS
Figure 2. Measuring Output Voltage During Switching across C9. Note that C9 May Not Be Installed
Figure 3. Rise Time into 50Ω Load (VIN = 135V, CH4 VINP 5V/DIV, CH3 VOUT 20V/DIV, 10ns/DIV)
Figure 4. Board Photo
+ –
VOUT GND
C9
VOUT
50V/DIV
VINP
5V/DIV

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dc2537af
DEMO MANUAL DC2537A
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 5 C3, C4, C5, C7, C8 CAP., 1µF, X7T, 250V, 1812 TDK, C4532X7T2E105K250KA
2 2 C11, C14 CAP., 1000pF, X7R, 25V, 10%, 0603 MURATA, GRM188R71E102KA01D
3 1 C12 CAP., 0.1µF, X7R, 25V, 10%, 0805 AVX, 08053C104KAT2A
4 1 C13 CAP., 0.1µF, X7R, 200V, 10%, 1206 AVX, 12062C104KAT2A
5 1 C17 CAP., 1µF, X7R, 25V, 10%, 0805 AVX, 08053C105KAT2A
6 1 D1 DIODE, ES1PD, 200V, 1A, DO-220AA VISHAY, ES1PD-M3/84A
7 1 Q1 MOSFET, N-CH, 150V, POWERPAK-SO-8 FAIRCHILD, FDMS86250
8 1 R1 RES., SENSE, 0.004Ω, 1W, 2%, 2512 PANASONIC, ERJM1WTF4M0U
9 2 R7 RES., 100Ω, 1/10W, 1%, 0603 VISHAY, CRCW0603100RFKEA
10 2 R15, R46 RES., 100k, 1/10W, 1%, 0603 VISHAY CRCW0603100KFKEA
11 1 R35 RES., 10Ω, 1/10W, 1%, 0603 VISHAY, CRCW060310R0FKEA
12 1 R40 RES., 1M, 1/10W, 1%, 0805 VISHAY, CRCW08051M00FKEA
13 1 U1 IC, LTC7000EMSE, MSE-16 LINEAR TECH., LTC7000EMSE#PBF
Additional Demo Board Circuit Components
14 1 C1 CAP., 10nF, X7R, 200V, 10%, 1206 AVX, 12062C103KAZ2A
15 1 C2 CAP., 22µF, ALUM, 160V, 20%, TH C-10X12.5 SUN ELECT., 160ME22HPC
16 1 R4 RES., 100Ω, 1/2W, 5%, 1210 NIC, NRCP25J101TRF
17 0 C6, C9 CAP., OPTIONAL, 1812 OPTIONAL
18 0 C10 CAP., OPTIONAL, TH C-10X12 OPTIONAL
19 0 C16 CAP., OPTIONAL, 1206 OPTIONAL
20 2 C18, C19 CAP., 0.1µF, X7R, 25V, 10%, 0603 AVX, 06033C104KAT2A
21 0 C21, C22, C23 CAP., OPTIONAL, 0603 OPTIONAL
22 0 D2, D3, D4 DIODE, OPTIONAL, SOT23 OPTIONAL
23 1 D5 DIODE, MMSZ5V1T1, SOD-123 ON SEMICONDUCTOR, MMSZ5V1T1G
24 1 D6 DIODE, MMBD4148, SOT23 DIODES INC., MMBD4148-7-F
25 0 D7 DIODE OPTION, PDS4150, POWERDI5 OPTIONAL
26 0 D8 DIODE, OPTION, BAS21, SOT23 OPTIONAL
27 0 D9 DIODE., OPTION, CMMR1U, SOD-123F OPTIONAL
28 0 Q2 MOSFET, N-CH, 80V, PSOF08A FAIRCHILD, FDBL86361_F085
29 0 Q3 MOSFET, OPTIONAL, POWERPAK-SO-8 OPTIONAL
30 1 Q4 XSTR, PNP, 0.2A, MMBT3906, SOT23 FAIRCHILD, MMBT3906
31 1 Q5 MOSFET, P-CH, –200V, SOT23 DIODES INC., ZXMP2120FFTA
32 1 R2 RES., 0Ω, 1/10W, 1%, 0805 VISHAY CRCW08050000Z0EA
33 9 R6, R12, R14, R22, R25, R43, R45, R47 RES., 0Ω, 1/10W, 0603 VISHAY CRCW06030000Z0EA
34 0 R9, R17, R41, R42 RES., OPTIONAL, 0805 OPTIONAL
PARTS LIST

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dc2537af
DEMO MANUAL DC2537A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
35 0 R13, R18, R19, R33, R34, R36, R39, R44 RES., OPTIONAL, 0603 OPTIONAL
36 3 R21, R37, R38 RES., 100k, 1/10W, 1%, 0603 VISHAY CRCW0603100KFKEA
37 1 R23 RES., 787Ω, 1/10W, 1%, 0603 VISHAY, CRCW0603787RFKEA
38 2 R27, R31 RES., 240k, 1/10W, 1%, 0805 VISHAY CRCW0805240KFKEA
39 1 R28 RES., 976k, 1/10W, 1%, 0603 VISHAY CRCW0603976KFKEA
40 1 R29 RES., 232k, 1/10W, 1%, 0603 VISHAY CRCW0603232KFKEA
41 1 R30 RES., 182k, 1/10W, 1%, 0603 VISHAY CRCW0603182KFKEA
42 1 R32 RES., SENSE, 0Ω, 1/2W, 1%, 1225 TEPRO, RN5326
43 1 SW1 SWITCH, SUB MINIATURE SLIDE C&K COMPONENTS, JS202011CQN
44 1 SW2 SWITCH, MICRO MINIATURE PUSHBUTTON TE CONNECTIVITY, FSM4JSMA
45 1 U2 IC, LTC6993CS6-3, TSOT23-6 LINEAR TECH., LTC6993CS6-3#PBF
Hardware: For Demo Board Only
46 8 E1-E8 TESTPOINT, TURRET 0.094" MILL MAX 2501-2-00-80-00-00-07-0
47 1 JP1 CONN., HEADER, 2X3, 2mm WURTH ELEKTRONIK, 62000621121
48 4 J1, J2, J3, J4 CONN, BANANA JACK KEYSTONE 575-4
49 1 XJP1 SHUNT, 2MM WURTH ELEKTRONIK, 60800213421
50 4 MTGS. AT 4 CORNERS STAND-OFF, NYLON 0.559" tall WURTH ELEKTRONIK, 702935500

6
dc2537af
DEMO MANUAL DC2537A
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D D C C B B A A
FAST HIGH VOLTAGE PROTECTED HIGH-SIDE NMOS STATIC SWITCH DRIVER
16V
2%
5%
Note: Unless otherwise specified: All resistors are in ohms, 1%, 0603. All capacitors are in microfarads 0603. All capacitors are 25V. 1/16W = 0402, 1/10W = 0603, 1/8W = 0805, 1/4W = 1206, 1/2W =1210, 1W = 2512. 1uF 250V TDK C4532X7T2E105K250KA (1812, X7T, -50% at 125V). 22uF 160V Sun Elect Ind 160ME22HPC (10X12.5,153mA at 120Hz). 5.1V Zener On Semi MMSZ5V1T1. 0 Ohm 1225 TEPRO RN5326 0.004ohms 1W Panasonic ERJM1WTF4M0U (2512). 100ohm 1210 NIC NRCP25J101TRF (0.5W, 400W for 0.1ms). Fairchild FDMS86250 (150V, 25mohmmax and 25nCtyp at 10V, 33mohmmax at 6V, Power56).
IMON
5.5A MAX
135VIN MAX
Note: OPT = (OPT) = Optional = Not Used
ISET
2512
PULSE
ON/OFF INPUT
DANGER, HIGH VOLTAGE
Vccuv rising = 7.0V typ (7.5V max) Vccuv falling = 6.4V typ (5.8V min)
See Page 2 for SW1 (ON/OFF) and SW2 (PULSE)
VCC
VCC
TD TS
TG
VIN2
VCC
BST
BST
+VOUT
VIN
TRIGOUTONOFF
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] 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
3
Wednesday, August 16, 2017
12
KURK M.
N/A
LTC7000EMSE
LT
DC2537A
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] 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
3
Wednesday, August 16, 2017
12
KURK M.
N/A
LTC7000EMSE
LT
DC2537A
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] 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
3
Wednesday, August 16, 2017
12
KURK M.
N/A
LTC7000EMSE
LT
DC2537A
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
KURK M.
PRODUCTION3 08-16-17
__
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
KURK M.
PRODUCTION3 08-16-17
__
REVISION HISTORY DESCRIPTION DATEAPPROVEDECO REV
KURK M.
PRODUCTION3 08-16-17
__
J2
GND
R42 OPT 0805
E2
GND
R44
OPT
C22 OPT
U1
LTC7000EMSE
BST 14
VCC 3
RUN
1
SNS- 15
SNS+ 16
TGUP 12
VCCUV 4
TIMER
6
INP
7
GND
17
TS 13
TGDN 11
FAULT
5
VIN
2
OVLO 8
ISET
9
IMON
10
R40
1MEG 0805 C21
OPT
R6
0
C14 1nF
JP1
MODE
12 34 56
R14
0
C6
250V
1812
OPT C8
250V
1uF
1812 R35
10
R17
OPT
0805
E6
FAULT
C1
10nF 1206 200V
C13 0.1uF 1206 200V
D1 ES1PD
C23 OPT
C17
1uF 0805
R46
100K
P1 D4
OPT
R15 100k
R39
OPT
E7
INPUT C16
OPT 1206
200V
E8
GND
R7
100
R45
0
R2 0 0805
R1
0.004
1W
E3 +VOUT
R4 100 1210
J3 +VOUT
R19
OPT
Q1 FDMS86250
4
5
2 3
6 7 8
1
E1
+VIN
J4
GND
P2
C9 OPT 1812
C11
1nF
R41 OPT 0805
C12
0.1uF
1206-0805
R43
0
R47
0
R36
OPT
J1
+VIN
R18
OPT
R32
0
1225
R12
0
E4
GND
+
C2
22uF
160V
C7
250V
1uF
1812

7
dc2537af
DEMO MANUAL DC2537A
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
D D C C B B A A
OPTIONAL ON/OFF and SINGLE SHOT
PowerDI5
SOT23 SOD-123F
ON OFF
T=300us
PULSE or RESET
FAST HIGH VOLTAGE PROTECTED HIGH-SIDE NMOS STATIC SWITCH DRIVER
+VOUT
TS TG
VCC
TD
BST TG TS
VIN2VIN
VIN
5V
5V
5V
TRIGOUT
ONOFF
VIN2
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] 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
3
Wednesday, August 16, 2017
22
KURK M.
N/A
LTC7000EMSE
LT
DC2537A
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] 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
3
Wednesday, August 16, 2017
22
KURK M.
N/A
LTC7000EMSE
LT
DC2537A
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY Fax: [phone]
Milpitas, CA 95035 Phone: [phone] 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
3
Wednesday, August 16, 2017
22
KURK M.
N/A
LTC7000EMSE
LT
DC2537A
D7 OPT
12
3
D2
OPT
R31 240K 0805
C19 0.1uF
+
C10 OPT
160V
U2
LTC6993CS6-3
TRG
1
GND
2
SET
3DIV 4
V+ 5
OUT 6
Q4 MMBT3906
C5
250V
1812
1uF
R29
232k
SW1
JS202011CQN
4 1 5 2 6 3
D3
OPT (CMPZ5242B)
SW2
FSM4JSMA
1 23
4
D9
OPT
21
R21
100K
R33 OPT
Q5
ZXMP2120FF
R25
0
Q2
OPT PSOF08
SD
G
R38
100k
D5 5.1V
C4
250V
1812
1uF
R28
976k
R27 240K 0805
E5
AUX_VCC R13
OPT
R9 OPT 0805
Q3 OPT POWERPAK-SO-8
4
5
2 3
6 7 8
1
C18 0.1uF
R22 0
R30
182k
R34
OPT
R23 787
D6
MMBD4148
D8
OPT
R37 100k
C3
250V
1812
1uF

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dc2537af
DEMO MANUAL DC2537A
 LINEAR TECHNOLOGY CORPORATION 2017
LT 0917 • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) 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 LTC 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 LTC 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. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
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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 LTC application
engineer.
Mailing Address:
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Copyright © 2004, Linear Technology Corporation