DC1830B - Demo Manual

DEMO MANUAL
DC1830B-C/DC1830B-D
LTC4000-1
Battery Charger Controller and
PowerPath Manager with
Maximum Power Point Control
DESCRIPTION
Demonstration circuit 1830B is a battery charger controller and PowerPath™ manager with maximum power point
control (MPPC) featuring the LTC®4000-1. MPPC extracts
near maximum power from high impedance sources
such as solar panels, wind turbines or fuel cells. MPPC
is achieved by means of an input voltage regulation control loop. This board should be connected to a front-end
DC/DC power supply for a complete charger solution.
The DC1830B is customizable to handle a wide variety
of applications with output voltages from 3V to 30V and
output currents up to 6.5A with the PFETs supplied, and up
to 60V and/or 13A with higher voltage rating and/or added
PFETs. The reference design provided with DC1830B is
targeted at 4-cell LiFePO4 (14.6V/5A) applications.
The DC1830B loop compensation values were proven with
the LTC3845A buck power converter shown and are typical for other applications. The output of this demo board
was specifically tailored for a Tenergy 10A-hour battery,
P/N 30207. Other voltages can be set by changing ROFB2
and RBFB2. The desired nominal voltage can be accurately
trimmed by using trim resistors ROFBX and RBFBX. For
example, for 14.4V battery float voltage, change ROFB2
and RBFB2 to 86.6k, and add 7.5M at ROFBX and RBFBX
for greater setpoint accuracy. Other parameters can be adjusted to suit specific applications with guidance provided
in the LTC4000-1 data sheet. Table 1 provides a summary
of parameter adjustments.
This circuit was designed to demonstrate the high levels
of performance and small solution size attainable using
this part to control a switch mode power converter to
form a battery charger, intelligent PowerPath manager and
power supply system. It produces a regulated 5.0A/14.6V
battery charger output as well as a system output of up to
5.5A: suitable for a wide variety of portable applications
including instruments, industrial equipment, power tools
and computers.
The DC1830B-C provides a solution complete with both
battery charger control and PowerPath management. It
includes a second PFET (Q2) between VOUT-SYS and
BAT to provide “instant-on” functionality which keeps
VOUT-SYS within a narrow range regardless of battery
voltage, and disconnects the battery when it is fully charged
and power is available from the front-end DC/DC converter.
Thermal regulation circuitry is also provided to limit the
temperature of both PFETs.
The DC1830B-D provides a simple battery-charger-controller-only solution without the PowerPath manager. It
deletes the second PFET and thermal regulation circuitry.
In this case, the battery is always “online” and VOUT-SYS
tracks the BAT voltage.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
PowerPath is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
dc1830b-c/b-df
1
DEMO MANUAL
DC1830B-C/DC1830B-D
PERMORMANCE SUMMARY
Specifications are at TA = 25°C
SYMBOL
PARAMETER
CONDITIONS/COMMENTS
VIN
Input Supply Range
This Is the Input Voltage of the Front-End DC/DC Supply
VIN-MP
Input Regulation Voltage
This Is the Input Voltage Lower Limit Set by the LTC4000-1
VFLOAT
Battery Float Voltage
Output Regulation
IBAT
MIN
TYP
20
MAX
60
V
14.8
V
35.1
14.4
V
0
%
Battery Charge Current
5.0
A
Battery Charge Current – Trickle
0.6
A
tT
Charge Termination Time
VOUT-SYS
System Output Voltage
IOUT-SYS
System Output Current Range
Line and Load (20V to 60V, 0A to 4.5A)
14.6
UNITS
VBAT = VFLOAT
2.9
12.3
0
14.6
Hours
15.5
V
5.5
A
QUICK START PROCEDURE
Demonstration circuit 1830 is offered for use in combination with a front-end DC/DC converter, and will need
to be customized to suit the intended application. It has
been supplied with components for a design as outlined
in the Performance Summary, and tested in conjunction
with the LTC3845A buck converter that it was tailored
to. A separate demonstration board is available for
the LTC4000-1/LTC3789 buck-boost combination, the
DC1721B. The LTC4000-1 data sheet should be used for
guidance in determining circuit values for the application
at hand. You may follow the Design Example on page 26 of
the data sheet. Table 1 provides a summary of parameter
adjustments.
2. With power off, connect the supply to the input terminals
VIN and GND.
NOTE: The PFETs supplied on this board are rated at 30V.
3. Set CHARGE jumper to ENABLE.
Once the circuit has been customized to suit the application
at hand, it is easy to set up to evaluate the performance of
the LTC4000-1 when combined with a suitable switching
power converter, such as the LTC3845A. Voltages and
currents cited in this procedure are for the design as delivered; if the design has been customized, substitute the
appropriate values. Refer to Figure 1 for proper measurement equipment setup and follow the procedure below:
4. Turn on the power at the input.
WARNING: BATTERIES ARE POTENTIALLY DANGEROUS
HIGH ENERGY SOURCES. IMPROPER CONNECTION,
OVERCHARGE, OR RAPID DISCHARGE COULD RESULT
IN EXPLOSION AND/OR FIRE.
NOTE:
a. Input voltages lower than 20V can keep the converter
from turning on due to the undervoltage lockout
feature of the LTC4000-1.
b. Input voltages lower than the MPPC regulation point
(35.1V) will reduce the associated DC/DC converter’s
output to a minimum.
c. If efficiency measurements are desired, refer to Figure 1 for the test setup.
NOTE: Make sure that the input voltage never exceeds
60V.
5. Check for the proper BAT output voltage of 14.6V. Turn
off the power at the input.
6. Now that the proper output voltage is established, connect a variable load capable of sinking 6A at 16V to the
output terminals BAT and GND. Set the current for 0A.
7. Turn on the power at the input.
NOTE: If there is no output, temporarily disconnect the
load to make sure that the load is not set too high.
1. Set an input power supply that is capable of 60V and
3A, to 36V. Then turn off the supply.
dc1830b-c/b-df
2
DEMO MANUAL
DC1830B-C/DC1830B-D
QUICK START PROCEDURE
8. Once the proper BAT output voltage is again established, adjust the load and/or source within the
operating range and observe the battery float voltage
regulation, charge current, and other desired parameters.
9. Set the load to constant voltage mode to more easily
observe charge current and trickle charge current.
10. In order to observe MPPC operation, add a 4.7Ω or
5Ω, 10W resistor in series with the DC source and set
the source to 40V. Use a constant voltage or constant
resistance load characteristic. As the load is increased,
the input voltage will be regulated at the MPPC
regulation point (35.1V) by reducing the output of the
DC/DC converter.
NOTE: Operation in the instant-on region (VOUT <
12.5V) may engage thermal limit circuit to protect Q2
in the linear region.
NOTE: The optional thermal limit circuit for Q1 (Q5,
RNTC3, R8-R12, and U2) is included to protect Q1 in
case of an extended short circuit on VOUT-SYS under
adverse thermal conditions (TA > 40°C). It may not be
needed in applications with less severe thermal conditions, lower current available to VOUT-SYS, or where
continuous short circuit protection on VOUT-SYS is
not required.
NOTE: The following applies to the DC1830B-C.
11. Turn off the power at the input.
12. Connect the output load and meters to the VOUT-SYS
output.
13. Set CHARGE jumper to DISABLE.
14. Turn on the power at the input.
15. Once the proper VOUT-SYS is again established, adjust
the load and/or source within the operating range and
observe the output voltage regulation, ripple voltage,
efficiency, output current limit and other desired
parameters.
Table 1. LTC4000-1 Charger Setup Parameters and Reference Values
REFERENCE DESCRIPTION
VIN
Input Voltage Regulation/Limit
NOMINAL VALUE (V)*
MIN/MAX
1.000V
0.985/1.010
ICL
Charge Current Regulation/Limit
(50μA • RCL)/20
45/55
ICL
Trickle Charge Current Regulation/Limit
(50μA • RCL)/20
4.5/5.5
VBAT-FLOAT
Battery Float Voltage
1.136V
1.125/1.147
VOUT
System Voltage
1.193V
1.181/1.204
(Follows VBAT)
Input Voltage Monitor/UVLO
CX
C/X Monitor/Charge Termination
TMR
Charge Termination Timer
50mV Max
Charger Off
Charger Float
(Follows VBAT)
VM
CONDITIONS
Charging at ICL, 0.86 • VBAT-FLOAT < VBAT < VBAT-FLOAT
0.86 • 1.136V
0.82/0.90
Instant-On, 0.68 • VBAT-FLOAT < VBAT < 0.86 • VBAT-FLOAT
0.86 • 1.136V
0.82/0.90
Instant-On, Trickle, VBAT < 0.68 • VBAT-FLOAT
1.193V
1.181/1.204
(5μA • RCX – 10mV)/20
4.5/5.5
104s/nF
83/126
Falling, (40mV Hysteresis)
Short TMR to BIAS for C/X Termination
*Normalized to sense point.
dc1830b-c/b-df
3
DEMO MANUAL
DC1830B-C/DC1830B-D
QUICK START PROCEDURE
OR
–
–
DC
SOURCE
+
V
+
+
+
V
SCOPE
–
+
A
A
–
+
LOAD
–
–
Figure 1. Fixture Connections and Measurement Equipment Setup
Figure 2. Block Diagram with Typical DC/DC Converter
dc1830b-c/b-df
4
DEMO MANUAL
DC1830B-C/DC1830B-D
PARTS LIST—DC1830B-C
ITEM
QTY REFERENCE
Required Circuit Components
1
1
C1
2
1
CBAT
3
1
CBIAS
4
1
CBGATE
5
2
CC2, CTMR
6
2
CIIMON, CIBMON
7
1
CIN
8
2
COUT, CL
9
1
D1
10
1
D2
11
2
D3, D4
12
1
F2
13
2
Q1, Q2
14
2
Q5, Q6
15
2
RBFB2, ROFB2
16
4
RBFB1, ROFB1, R12, R17
17
1
RC1
18
1
RCL
19
1
RCS
20
3
RCX, R8, R13
21
1
RIFB1
22
1
RIL
23
2
RNTC2, RNTC3
24
1
RIS1
25
1
RVM1
26
1
RVM2
27
1
R5
28
3
R4, R7, R19
29
2
R6, R18
30
1
R9
31
2
R10, R15
32
2
R11, R16
33
1
R14
34
1
U1
35
2
U2, U3
Additional Demo Board Circuit Components
1
0
CC1, CIGATE, CNTC, CCX, CCL, CIL, CVM
2
0
CL1, CL2, CL3, CL4, CL5
3
0
F1, F3
4
0
Q3, Q4
5
0
R1, R2, R3, R20, R21, RIG, RBG, RBFBX,
RBFB3, ROFBX
PART DESCRIPTION
MANUFACTURER/PART NUMBER
CAP., X5R, 4.7μF, 10V, 20% 0603
CAP., SMT ALUMINUM, 150μF, 35V
CAP., X7R, 1μF, 16V, 10% 0603
CAP., X7R, 10nF, 50V, 5% 0603
CAP., X7R, 0.1μF, 50V, 10% 0603
CAP., C0G, 1000pF, 25V, 5% 0603
CAP., X7R, 1μF, 50V, 10% 1210
CAP., X7R, 2.2μF, 50V, 10% 1206
DIODE ZENER 3.0V 200MW SOD-323
LED, GREEN, SMT, 0603
LED 660NM SUPER RED DIFF 0603 SMD
FUSE 12A 32V T-LAG 1206 SMD
MOSFET P-CHAN., 30V, POWERPAK-8
SMALL SIGNAL MOSFET
RES., CHIP, 84.5k, 0.1W, 1% 0603
RES., CHIP, 1M, 0.1W, 1% 0603
RES., CHIP, 4.22k, 1/10W 1% 0603
RES., CHIP, 24.3k, 0.1W, 1% 0603
SENSOR RES., 0.01Ω 1W 2% 1508 SMD
RES., CHIP, 10k, 0.1W, 1% 0603
RES., CHIP, 68.1k, 0.1W, 1% 0603
RES., CHIP, 2.0k, 0.1W, 1% 0603
THERMISTOR NTC 10kΩ 5% 0603
SENSOR RES 0.015Ω 1W 2% 1508 SMD
RES., CHIP, 35.7k, 1/10W 1% 0603
RES., CHIP, 2.49k, 1/10W 1% 0603
RES., CHIP, 2.2k, 0.1W, 5% 0603
RES., CHIP, 100k, 0.1W, 5% 0603
RES., CHIP, 4.7k, 0.1W, 5% 0603
RES., CHIP, 46.4k, 0.1W, 1% 0603
RES., CHIP, 20k, 0.1W, 1% 0603
RES., CHIP, 38.3k, 0.1W, 1% 0603
RES., CHIP, 78.7k, 0.1W, 1% 0603
I.C. LTC4000EUFD-1, 28-PIN QFN
NANOPWR COMPARATOR, MSOP8
AVX, 0603ZD475MAT2A
SUNCON, 35HVP150M
AVX, 0603YC105KAT2A
MURATA, GRM188R71H103JA01D
AVX, 06035C104KAT2A
AVX, 06033A102JAT2A
AVX, 12105C105KAT2A
MURATA, GRM31CR71H225KA88L
DIODE INC.,BZT52C3V0S-7-F
LITE-ON, LTST-C190KGKT
LUMEX, SML-LX0603SRW-TR
COOPER BUSSMAN, 3216TD12-R
VISHAY, SI7135DP-T1-GE3
ON SEMI., 2N7002LT1G
VISHAY, CRCW060384K5FKEA
VISHAY, CRCW06031M00FKEA
YAGEO, RT0603FRE074K22L
VISHAY, CRCW060324K3FKEA
SUSUMU, RL3720WT-R010-G
YAGEO, RC0603FR-0710KL
VISHAY, CRCW060368K1FKEA
VISHAY, CRCW06032K00FKTA
VISHAY, NTHS0603N02N1002J
SUSUMU, RL3720WT-R015-G
VISHAY, CRCW060335K7FKEA
YAGEO, RC0603FR-072K49L
VISHAY, CRCW06032K2JKEA
VISHAY, CRCW0603100KJKEA
VISHAY, CRCW06034K7JKEA
VISHAY, CRCW060346K4FKEA
VISHAY, CRCW060320K0FKEA
VISHAY, CRCW060338K3FKEA
VISHAY, CRCW060378K7FKEA
LINEAR TECH., LTC4000EUFD-1#PBF
LINEAR TECH., LTC1540CMS8#PBF
CAP., 0603 OPT
CAP., 1206, 50V OPT
FUSE 12A 32V T-LAG 1206 SMD OPT
MOSFET P-CHAN., 30V, POWERPAK-8 OPT
RES., 0603 OPT
dc1830b-c/b-df
5
DEMO MANUAL
DC1830B-C/DC1830B-D
PARTS LIST—DC1830B-C
ITEM
QTY REFERENCE
Hardware-For Demo Board Only
1
16
E1-E6, E9-E14, E18, E19, E20, E21
2
5
E7, E8, E15, E16, E17
3
4
JP1, JP2, JP3, JP4
4
4
XJP1, XJP2, XJP3, XJP4
5
9
J1, J2, J3, J4, J5, J6, J7, J8, J9
6
4
MTG1, MTG2, MTG3, MTG4
PART DESCRIPTION
MANUFACTURER/PART NUMBER
TESTPOINT, TURRET, 0.061" PBF
TESTPOINT, TURRET, 0.094" PBF
HEADER, 3-PIN 0.079 SINGLE ROW
SHUNT, 0.079" CENTER
CONNECTOR, BANANA JACK
STAND-OFF, NYLON (SNAP ON), 0.50" TALL
MILL-MAX, 2308-2-00-80-00-00-07-0
MILL-MAX, 2501-2-00-80-00-00-07-0
SAMTEC, TMM-103-02-L-S
SAMTEC, 2SN-BK-G
KEYSTONE, 575-4
KEYSTONE, 8833(SNAP ON)
PART DESCRIPTION
MANUFACTURER/PART NUMBER
CAP., X5R, 4.7μF, 10V, 20% 0603
CAP., SMT ALUMINUM, 150μF, 35V
CAP., X7R, 1μF, 16V, 10% 0603
CAP., X7R, 0.1μF, 50V, 10% 0603
CAP., C0G, 1000pF, 25V, 5% 0603
CAP., X7R, 2.2μF, 50V, 10% 1206
CAP., X7R, 1μF, 50V, 10% 1210
DIODE ZENER 3.0V 200MW SOD-323
LED 660NM SUPER RED DIFF 0603 SMD
LED, GREEN, SMT, 0603
FUSE 12A 32V T-LAG 1206 SMD
MOSFET P-CHAN., 30V, POWERPAK-8
RES., CHIP, 1M, 0.1W, 1% 0603
RES., CHIP, 84.5k, 0.1W, 1% 0603
RES., CHIP, 4.22k, 1/10W 1% 0603
RES., CHIP, 24.3k, 0.1W, 1% 0603
SENSOR RES., 0.01Ω, 1W 2% 1508 SMD
RES., CHIP, 0.0Ω, 0.1W, 0603
RES., CHIP, 68.1k, 0.1W, 1% 0603
RES., CHIP, 2.0k, 0.1W, 1% 0603
SENSOR RES 0.015Ω, 1W 2% 1508 SMD
RES., CHIP, 35.7k, 1/10W 1% 0603
RES., CHIP, 2.49k 1/10W 1% 0603
RES., CHIP, 100k, 0.1W, 5% 0603
RES., CHIP, 2.2k, 0.1W, 5%, 0603
RES., CHIP, 4.7k, 0.1W, 5% 0603
ZERO OHM THICK FILM JUMPER CHIP, 2010
I.C., LTC4000EUFD-1, 28PIN QFN
AVX, 0603ZD475MAT2A
SUNCON, 35HVP150M
AVX, 0603YC105KAT2A
AVX, 06035C104KAT2A
AVX, 06033A102JAT2A
MURATA, GRM31CR71H225KA88L
AVX, 12105C105KAT2A
DIODE INC.,BZT52C3V0S-7-F
LUMEX, SML-LX0603SRW-TR
LITE-ON, LTST-C190KGKT
COOPER BUSSMAN, 3216TD12-R
VISHAY, SI7135DP-T1-GE3
VISHAY, CRCW06031M00FKEA
VISHAY, CRCW060384K5FKEA
YAGEO, RT0603FRE074K22L
VISHAY, CRCW060324K3FKEA
SUSUMU, RL3720WT-R010-G
VISHAY, CRCW06030000Z0EA
VISHAY, CRCW060368K1FKEA
VISHAY, CRCW06032K00FKTA
SUSUMU, RL3720WT-R015-G
VISHAY, CRCW060335K7FKEA
YAGEO, RC0603FR-072K49L
VISHAY, CRCW0603100KJKEA
VISHAY, CRCW06032K2JKEA
VISHAY, CRCW06034K7JKEA
IRC., LRC-LRZ-2010LF-R000
LINEAR TECH., LTC4000EUFD-1#PBF
PARTS LIST—DC1830B-D
ITEM
QTY REFERENCE
Required Circuit Components
1
1
C1
2
1
CBAT
3
1
CBIAS
4
2
CC2, CTMR
5
2
CIIMON, CIBMON
6
1
COUT
7
1
CIN
8
1
D1
9
2
D2,D3
10
1
D4
11
1
F2
12
1
Q1
13
2
RBFB1, ROFB1
14
1
RBFB2
15
1
RC1
16
1
RCL
17
1
RCS
18
2
RCX, R21
19
1
RIFB1
20
1
RIL
21
1
RIS1
22
1
RVM1
23
1
RVM2
24
3
R4, R7, R19
25
1
R5
26
2
R6,R18
27
1
R22
28
1
U1
dc1830b-c/b-df
6
DEMO MANUAL
DC1830B-C/DC1830B-D
PARTS LIST—DC1830B-D
ITEM
QTY REFERENCE
Additional Demo Board Circuit Components
1
0
CC1, CBGATE, CIGATE, CNTC, CCX, CCL,
CIL, CVM
2
0
CL, CL1, CL2, CL3, CL4, CL5
3
0
F1, F3
4
0
RNTC2, RNTC3
5
0
R1, R2, R3, R20, RIG, RBG, RBFBX,
ROFBX, RBFB3, ROFB2
6
0
R8, R13
7
0
R9
8
0
R10, R15
9
0
R11, R16
10
0
R12, R17
11
0
R14
12
0
Q3,Q4
13
0
Q5,Q6
14
0
U2,U3
Hardware-For Demo Board Only
1
16
E1-E6, E9-E14, E18, E19, E20, E21
2
5
E7, E8, E15, E16, E17
3
4
JP1, JP2, JP3, JP4
4
4
XJP1, XJP2, XJP3, XJP4
5
9
J1, J2, J3, J4, J5, J6, J7, J8, J9
6
4
MTG1, MTG2, MTG3, MTG4
PART DESCRIPTION
MANUFACTURER/PART NUMBER
CAP., 0603 OPT
CAP.,1206, 50V OPT
FUSE 12A 32V T-LAG 1206 SMD OPT
THERMISTOR NTC 10kΩ 5% 0603 OPT
RES., 0603 OPT
VISHAY, NTHS0603N02N1002J
RES., CHIP, 10k, 0.1W, 1% 0603 OPT
RES., CHIP, 46.4k, 0.1W, 1% 0603 OPT
RES., CHIP, 20k, 0.1W, 1% 0603 OPT
RES., CHIP, 38.3k, 0.1W, 1% 0603 OPT
RES., CHIP, 1M, 0.1W, 1% 0603 OPT
RES., CHIP, 78.7k, 0.1W, 1% 0603 OPT
MOSFET P-CHAN., 30V, POWERPAK-8 OPT
SMALL SIGNAL MOSFET OPT
NANOPWR COMPARATOR, MSOP8 OPT
YAGEO, RC0603FR-0710KL
VISHAY, CRCW060346K4FKEA
VISHAY, CRCW060320K0FKEA
VISHAY, CRCW060338K3FKEA
VISHAY, CRCW06031M00FKEA
VISHAY, CRCW060378K7FKEA
ON SEMI., 2N7002LT1G
LINEAR TECH., LTC1540CMS8#PBF
TESTPOINT, TURRET, 0.061" PBF
TESTPOINT, TURRET, 0.094" PBF
HEADER, 3-PIN 0.079 SINGLE ROW
SHUNT, 0.079" CENTER
CONNECTOR, BANANA JACK
STAND-OFF, NYLON (SNAP ON), 0.50" TALL
MILL-MAX, 2308-2-00-80-00-00-07-0
MILL-MAX, 2501-2-00-80-00-00-07-0
SAMTEC, TMM-103-02-L-S
SAMTEC, 2SN-BK-G
KEYSTONE, 575-4
KEYSTONE, 8833(SNAP ON)
dc1830b-c/b-df
7
DEMO MANUAL
DC1830B-C/DC1830B-D
SCHEMATIC DIAGRAM
dc1830b-c/b-df
8
DEMO MANUAL
DC1830B-C/DC1830B-D
SCHEMATIC DIAGRAM
Modifed DC1619A as used with DC1830B
dc1830b-c/b-df
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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
9
DEMO MANUAL
DC1830B-C/DC1830B-D
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.
LTC 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 LTC application engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
dc1830b-c/b-df
10 Linear Technology Corporation
LT 1012 • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507 ● www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2012
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