DC2006A-B - Demo Manual

DEMO MANUAL DC2006A-B
LTC3862-2
High Power, High Voltage
Step-Up Converter
Description
Demonstration circuit 2006A-B is a multiphase high power,
high voltage step-up DC/DC converter featuring two the
LTC®3862-2 boost controllers. This demo board converts
a 6V to 36V input voltage to a 120V output at up to 2.0A
with two stages. The first stage converts the input voltage
to 50V. The second stage converts the 50V to 120V and
each stage uses one LTC3862-2.
The LTC3862-2 is a multiphase step-up (boost) DC/DC
controller that delivers high output power in a compact
footprint. Up to 12 power stages can be paralleled and
clocked out-of-phase to minimize input and output filtering
requirements. It has a 5.5V to 36V input voltage range and
an output voltage range that is dependent on the choice
of external components.
The DC2006A-B supports three ways of biasing the
LTC3862-2 controllers IC’s by directly from the input
voltage, or from a low power switching power supply or
from an LDO regulator.
The LTC3862-2 utilizes peak current mode architecture for
easy loop compensation and multiphase operation with
very accurate phase-to-phase current matching. The fixed
operating frequency can be set with a single resistor over
a 75kHz to 500kHz range or can be synchronized to an
external clock over a 50kHz to 600kHz frequency range.
A current sense resistor is used in each phase to provide
a precise cycle-by-cycle current limit. The powerful onboard gate drivers minimize switching losses and allow
the use of multiple MOSFETs in parallel for very high
current applications.
An onboard SEPIC power supply can provide a stable 10V
bias voltage for both LTC3862-2 controllers over the wide
varying input voltage. This allows the use of either logic
level or standard level MOSFETs, even when the input
voltage drops below the 10V set-point, which is useful in
wide varying input applications.
An onboard LDO regulator can be selected for biasing the
LTC3862-2 controllers which simplifies the design and is
useful in applications where the input voltage is always
higher than the required gate drive 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 of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Performance Summary
PARAMETER
CONDITIONS
VALUE
UNITS
Minimum Input Supply Voltage
6
V
Maximum Input Supply Voltage
36
V
Output Voltage Range
VIN = 6V to 36V, IOUT1 = 0A to 2.0A
Typical switching frequency
120 ±2%
V
200
kHz
Typical Output Ripple (VOUT, 120V)
ILOAD = 1.0A
150
mV
Efficiency Typical (VOUT, 120V, VIN 14V)
See Figure 3
93
%
dc2006abfa
1
DEMO MANUAL DC2006A-B
Quick Start Procedure
Demonstration circuit 2006 is easy to set up to evaluate
the performance of the LTC3862-2 controllers. Refer to
Figure 1 for proper measurement equipment setup and
follow the procedure below:
NOTE. When measuring the input or output voltage ripple,
care must be taken to avoid a long ground lead on the
oscilloscope probe. Measure the input or output voltage
ripple by touching the probe tip directly across the VIN or
VOUT and GND terminals. See Figure 2 for proper scope
probe technique.
1.Place jumper RUN1 (JP11) in the ON position. Place
jumper RUN2 (JP10) in ON position also.
2.Place jumper BIAS (JP12) to the VIN position.
3.With power off, connect the input power supply to VIN
and GND.
Turn the input power source on and slowly increase the
input voltage. Be careful not to exceed 36V.
NOTE: Make sure that the input voltage VIN does not exceed 36V. If higher operating voltage is required, power
components with higher voltage ratings should be used.
4.Check for the proper output voltage of 120V. If there is
no output, temporarily disconnect the load to make sure
that the load is not set too high. Take all the precautions
needed to work with high 120V output voltage.
5.Once the proper output voltages are established, adjust
the load within the operating range and observe the
output voltage regulation, ripple voltage, efficiency and
other parameters.
LTC3862-2 BIAS CIRCUITS
The demo board DC2006A supports three ways of biasing
LTC3862-2 controllers. Place jumper BIAS (JP12) to the
VIN position for input voltage above 10V, but below 36V.
In this case bias pins of LTC3862-2 controllers will be
connected directly to the input voltage.
Place jumper BIAS (JP12) to the AUX position for input voltage that can drop below 10V. The bias pins of LTC3862­-2
controllers will be connected directly to the low power
SEPIC converter, which provides regulated 10V.
The demo board DC2006A can be used for higher than 36V
input voltages. In that case, the bias power for LTC3862­-2
has to be limited under 36V. An external power source can
be used to accomplish this or the optional bias regulator
can be used. Remove R44 and R47 resistors and install
0Ω resistors R44 and R42.
Place jumper BIAS (JP12) to the AUX position. Since the
power dissipation in linear regulator Q17 depends on the
size of MOSFETs, switching frequency and voltage difference across Q17, all of the factors need to be considered
when selecting the appropriate device for Q17. Please
refer to LTC3862-2 data sheet.
Converter Efficiency
DC2006A-B efficiency reaches 92% at 12V input voltage
generating 120V at 2.0A and 93% at 14V input voltage,
see Figure 3. However, output current should be decreased
at input voltages below 11V to reduce thermal stress on
the converter. Figure 4 demonstrates maximum output
current, as function of input voltage, assuming 120V
output voltage.
All measurements were conducted at room temperature,
natural convection cooling with no air flow.
2
dc2006abfa
DEMO MANUAL DC2006A-B
Quick Start Procedure
40V DC
POWER SUPPLY
–
+
+
–
+
+
–
–
VOUT
LOAD
Figure 1. Proper Measurement Equipment Setup
dc2006abfa
3
DEMO MANUAL DC2006A-B
Quick Start Procedure
GND
VIN
Figure 2. Measuring Input or Output Ripple
94
93
92
(%)
91
90
89
88
12VIN
14VIN
24VIN
36VIN
87
86
0.5
0.7
0.9
1.1
1.3
(A)
1.5
1.7
1.9
DC2006 F03
Figure 3. DC2006A-B, Efficiency vs Load
MAXIMUM LOAD CURRENT (A)
2.5
2
1.5
1
0.5
0
6
7
8
9
10
INPUT VOLTAGE (V)
11
12
DC2006AB F04
Figure 4. Load Current Derating at Low Input Voltages
4
dc2006abfa
DEMO MANUAL DC2006A-B
Quick Start Procedure
Figure 4. Installing Through-Hole MOSFETs and Heat Sink on
Second Stage; AAVID TECH., 578622B03200G Heat Sink is Used
dc2006abfa
5
DEMO MANUAL DC2006A-B
Parts List
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
Required Circuit Components
1
2
CC1, CC2
Cap., NPO 220pF, 25V, 5%, 0603
MURATA, CGM1885C1H221JA16D
2
1
CIN1
Cap., Alum 220µF, 50V 12.8 × 12.8
SUN ELECT., 50CE220KX
3
6
CIN3-CIN8
Cap., X5R 10uF, 50V, 20%, 1812
TDK, CKG45NX5R1H106M
3
7
COUT1-COUT4, COUT7, COUT15,
COUT16
Cap., X7S 4.7µF, 100V, 10%, 1812
TDK, C4532X7S2A475K
4
5
COUT8-COUT11, COUT14
Cap., X7T 0.47µF, 450V, 1812
TDK C4532X7T2W474M
5
2
COUT5, COUT6
Cap., Alum. Elect. 100µF, 63V
SUN ELECT., 63CE100KX
6
2
COUT12, COUT13
Cap., Alum. 100µF, 160V, 20%
PANASONIC EEV-EB2C101M
6
5
C1, C8, C10, C17, C28
Cap., X7R 0.1µF, 25V, 10%, 0603
AVX, 06033C104KAT2A
7
2
C6, C15
Cap., X7R 0.47µF, 16V, 10%, 0603
AVX, 0603YC474KAT2A
8
2
C2, C12
Cap., NPO 1nF, 25V, 5%, 0603
AVX, 06033A102JAT2A
9
8
C3, C7, C9, C11, C16, C20, C22, C26
Cap., X7R 10nF, 25V, 5%, 0603
AVX, 06033C103JAT2A
10
3
C4, C13, C33
Cap., X5R 1µF, 50V, 10%, 1206
MURATA, GRM188R61H105KAAL
11
1
C18
Cap., X5R 1µF, 25V, 10%, 0603
AVX,06033D105KAT2A
12
1
C19
Cap., Polymer, 15uF, 25V
Panasonic,25TQC15MYFB
13
1
C21
Cap., X7S 2.2µF, 100V, 10%, 1206
TDK, C3216X7S2A225M
14
2
C24, C31
Cap., X7R 2.2µF, 25V, 20%, 0805
AVX, 08053C225MAT2A
15
2
C5, C14
Cap., X5R 4.7µF, 50V, 10%, 1206
TAIYO YUDEN, UMK316BJ475KL-T
16
4
D1, D4, D5, D8
Diode Schottky, SOD-323
DIODES/ZETEX, BAT760-7
17
2
D2, D11
Diode Schottky 8Amp 100V
VISHAY, V8P10-M3
18
2
D12, D13
Super Barrier Rectifier, 10A, 200V PWRD15
DIODES/ZETEX, SBR10U200P5-13
19
1
D16
Volt. Reg. Diode 12V SOD-323
NXP SEMI., PDZ12B
20
1
D15
Diode Schottky 1A, 60V
DIODES INC. PD3S160-7
21
1
D14
Diode Zener 7.5V
NXP/ PHILIPS PDZ7.5B
22
1
D17
Diode, 100V, SOD523
NXP/ PHILIPS BAS516
23
4
Q3, Q4, Q7, Q8
NPN/PNP Transistor
NXP SEMI., PBSS4140DPN
23
2
Q2, Q6
MOSFET 75V
INFINEON, BSC036NE7NS3G
24
2
Q10, Q14
MOSFET 150V
INFINEON, BSC190N15NS3G
25
1
Q16
MOSFET, 60V
FAIRCHILD, FDC5612
26
1
Q17
Transistor, SOT223
NXP SEMI., PZTA42
27
1
Q12
Transistor, SOT-23
DIODES, MMBTA42-7-F
28
2
L1, L2
INDUCTOR, 10µH
COILCRAFT, SER2918H-103KL
29
2
L6, L7
INDUCTOR, 100µH
COILCRAFT, PCV-2-104-05L
30
1
T2
Dual Winding Inductor, 100µH
COOPER BUSSMANN, DRQ73-101-R
31
7
R37, R14, R35, R47, R21, R22, R39
Res., Chip 0Ω, Jumper 0603
VISHAY, CRCW06030000Z0EA
32
4
RS2, RS3, RS6, RS8
Res., 0.004Ω, 1/2W, 1%, 2010
VISHAY, WSL20104L000FEA
33
1
R1
Res., Chip 84.5k, 1%, 0805
VISHAY, CRCW080584K5FKEA
34
4
R2, R12, R20, R29
Res., Chip 10Ω, 5%, 0603
VISHAY, CRCW060310R0JNEA
35
1
R45
Res., Chip 402Ω, 1%, 0603
VISHAY,CRCW0603402RFKEA
36
3
R5, R19, R9
Res., Chip 21k, 1%, 0603
VISHAY, CRCW060321K0FKEA
6
dc2006abfa
DEMO MANUAL DC2006A-B
Parts List
ITEM
QTY
REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
37
2
R7, R24
Res., Chip 66.5k, 1%, 0603
VISHAY, CRCW060366K5FKEA
38
2
R10, R27
Res., Chip 11.8k, 1%, 0603
VISHAY, CRCW060311K8FKEA
39
1
R11
Res., Chip 475k, 1%, 1206
VISHAY, CRCW1206475KFKEA
39
1
R16
Res., Chip 665k, 1%, 0805
VISHAY, CRCW0805665KFKEA
40
1
R26
Res., Chip 31.6k, 1%, 0603
VISHAY, CRCW06031K6FKEA
39
1
R28
Res., Chip 1.15M, 1%, 1206
VISHAY, CRCW12061M15FKEA
40
1
R34
Res., Chip 100k, 1%, 0603
VISHAY, CRCW0603100KFKEA
41
2
R46, R31
Res., Chip 10k, 1%, 0603
VISHAY, CRCW060310K0FKEA
42
1
R32
Res., Chip 0.1Ω, 1%, 0603
VISHAY, WSL0603R1000FEA
43
1
R50
Res., Chip 8.66k, 1%, 0603
VISHAY, CRCW06038K66FKEA
44
1
R23
Res., Chip 1M, 1%, 0603
VISHAY, CRCW06031M00FKEA
45
1
R44
Res., Chip 12.1k, 1%, 0603
VISHAY,,CRCW060312K1FKEA
46
1
R3
Res., Chip 3.32k, 1%, 1206
VISHAY,CRCW12063K32FKEA
47
1
R41
Res., Chip 10k, 1%, 1206
VISHAY,CRCW120610K0FKEA
48
1
R40
Res., Chip 115k, 1%, 0603
VISHAY, CRCW0603115K0FKEA
49
1
R38
Res., Chip 3.01k, 1%, 0603
VISHAY, CRCW06033K01FKEA
50
2
U1, U2
IC., LTC3862EUH-2#PBF, 5mm × 5mm, QFN
LINEAR TECH, LTC3862EUH-2#PBF
51
1
U3
IC., LTC3805-5
LINEAR TECH, LTC3805EMSE-5#TRMPBF
Additional Demo Board Circuit Components
1
R4, R8, R15, R25, R26, R30, R42
OPT
2
C16, C29, C30
OPT
3
D3, D6, D7, D10
OPT
4
Q1, Q5, Q9, Q13
OPT
5
HS1, HS2
OPTIONAL Heat Sink
AAVID TECH., 578622B03200G
E1-E10
TESTPOINT, TURRET, .094"
MILL-MAX, 2501-2-00-80-00-00-07-0
Hardware
1
10
2
4
J1, J2, J3, J4
CONN, BANANA JACK, KEYSTONE-575-4
KEYSTONE 575-4
3
1
JP1
JMP, 3 PIN, 1 ROW, 0.079"
SULLINS, NRPN031PAEN-RC
4
1
JP2
JMP, 3 PIN, 2 ROW, 0.079"
SULLINS, NRPN032PAEN-RC
6
4
MTGS at 4 corners
STANDOFF, NYLON .5 1/2"
KEYSTONE, 8833(SNAP-ON)
5
2
XJP1, XJP2
SHUNT, .079" CENTER
SAMTEC, 2SN-BK-G
6
2
J1, J2
Broaching Studs, .625 × 0.250
PennEngineering, KFH-032-10ET
7
2
J1, J2
Nut Brass, #10-32 M/S BR PL
ANY 10-32
8
2
J1, J2
Ring, Lug #10
KEYSTONE, 8205
9
2
J1, J2
Washer #10, Tin Plated Brass
ANY #10EXT BZ TN
dc2006abfa
7
1
2
3
4
GND
SYNC2
GND
SYNC1
GND
120°
J2
E7
E8
E5
E6
A
JP7
BLANK
+
CIN1
220uF
50V
JP3
BLANK
R22 0
C29
OPT
SYNC_AUX
CC2
220pF
C16
10nF
R21 0
R14 0
R13 OPT
CC1
220pF
10nF C7 R9 21k
JP6
PHASE
E10
JP2
PHASE
3
2
1
+VIN
325ns
250ns**
175ns
3
2
1
GND
180°
120°
1.66
1.0**
0.625
A
TP1
C22
C30
OPT
CLKOUT2
CIN2
OPT
JP5
DMAX
10
9
8
7
6
5
4
3
2
1
24
23
JP9
DMAX
CIN3
10uF
50V
JP4
SLOPE
R39 0
R35 0
R11
475k
VOUT1
R37 0
0.47uF
R10 11.8k
C6
R7 66.5k
0.47uF
10nF
R31 10K
R28
1.15Meg
R27 11.8k
C15
R24 66.5k
VOUT2
R26 31.6K
+
JP8
SLOPE
3
2
1
6V - 36V J1
180°
3
2
1
325ns
250ns**
175ns
3
2
1
10
9
8
7
6
5
4
3
2
1
24
23
CIN5
10uF
50V
SENSE2-
SENSE2+
NC
GATE2
PGND
SENSE1-
SENSE1+
GATE1
INTVCC
VIN
3V8
RUN
PLLFLTR
SYNC
CLKOUT
SGND
FB
ITH
SS
FREQ
PHASEMODE
BLANK
SLOPE
DMAX
SENSE2-
SENSE2+
NC
GATE2
PGND
SENSE1-
SENSE1+
GATE1
INTVCC
VIN
3V8
RUN
U2
LTC3862EUH-2
PLLFLTR
SYNC
CLKOUT
SGND
FB
ITH
SS
FREQ
PHASEMODE
BLANK
SLOPE
DMAX
U1
LTC3862EUH-2
CIN4
10uF
50V
12
11
13
14
15
20
21
16
17
18
22
19
12
11
13
14
15
20
21
16
17
18
22
19
CIN6
10uF
50V
R5
21k
1nF
B
D8
BAT760
5
2
5
2
R8
4
1
4
1
R15 OPT
4
1
OPT
C17
0.1uF
C10
0.1uF
C8
0.1uF
C1
0.1uF
R2
10
C11
10nF
R20 10
4
C3
10nF
4
Q1
OPT
C9
10nF
C20
10nF
R29 10
4
Q13
OPT
RS5
OPT
Q9
OPT
R12 10
4
Q5
OPT
RS1
OPT
4
4
RS7
OPT
C
RS6
4m
RS4
OPT
C
G1
4
S1
RS2
4m
Q10
4
D2
+VIN
Q14
GND
J8
J7
6V - 36V
+VIN
RS8
4m
S2
HS1 OPT
G2
HEAT SINK
RS3
4m
D1
+VIN
+VIN
Q6
BSC036NE7NS3G
Q2
BSC036NE7NS3G
100uH
OPT
OPT
100uH
L7
L4
L3
L6
10uH
L2
10uH
L1
HS2 OPT
3
3
COUT14
0.47uF
450V
COUT7
4.7uF
100V
CUSTOMER NOTICE
3
D13
SBR10U200P
D7
OPT
3
D6
OPT
D12
SBR10U200P
3
D11
V8P10
D3
OPT
3
3
3
D10
OPT
D2
V8P10
D
COUT8
0.47uF
450V
COUT1
4.7uF
100V
D
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
COUT10
0.47uF
450V
COUT3
4.7uF
100V
SCALE = NONE
VICTOR K.
HZ
APPROVALS
COUT9
0.47uF
450V
COUT2
4.7uF
100V
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
Figure 5. DC2006A-B Dual Stage Boost Converter
R30 OPT
4
1
R25 OPT
INTVCC1
Q8
PBSS4140DPN
5
2
Q7
PBSS4140DPN
INTVCC1
5
2
INTVCC
Q4
PBSS4140DPN
D5
BAT760
D4
BAT760
OFF
ON
C13
1uF
RUN2
JP10
VBIAS
1
2
3
R17
OPT
+VIN
C5 4.7uF
C4 1uF
OFF
Q3
INTVCC
PBSS4140DPN
D1
BAT760
CIN10
OPT
ON
CIN9
OPT
RUN1
JP11
VBIAS
1
2
3
CIN8
10uF
50V
C14 4.7uF
1nF
INTVCC1
C12
R19
21k
R16
665K
VOUT1
INTVCC
C2
R1
84.5k
+VIN
CIN7
10uF
50V
B
6
3
75%
84%**
96%
3
2
1
1.66
1.0**
0.625
3
2
1
75%
84%**
96%
3
2
1
GND
25
GND
1
2
1
2
1
2
1
2
5
1
2
3
5
1
2
3
1
5
5
5
1
2
3
3
5
1
2
3
5
2
BSC190N15NS3G
6
3
6
3
6
3
5
1
2
3
4
5
1
2
3
1
2
3
1
2
3
6
BSC190N15NS3G
1
E9
3
G1
+VIN
2
S1
25
4
D1
HEAT SINK
G2
6
S2
5
D2
8
+VIN
VOUT2
VOUT1
COUT6
100uF
63V
+
+
COUT13
100uF
160V
R18 OPT
COUT5
100uF
63V
J4
J3
J6
J5
GND
GND
VOUT2
VOUT2
GND
GND
VOUT1
VOUT1
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
E14
E13
VOUT2
E12
E11
DATE
7-3-13
DATE:
N/A
SIZE
E
LTC3862EUH-2
DEMO CIRCUIT 2006A-B
Wednesday, September 25, 2013
IC NO.
SHEET 1
2
OF 2
REV.
HIGH POWER, HIGH VOLTAGE STEP-UP CONVERTER
TECHNOLOGY
+ COUT12
100uF
160V
+
VOUT1
APPROVED
VICTOR K.
PRODUCTION
2
E
DESCRIPTION
REVISION HISTORY
REV
TITLE: SCHEMATIC
COUT11
0.47uF
450V
COUT4
4.7uF
100V
__
ECO
1
2
3
4
DEMO MANUAL DC2006A-B
Schematic Diagram
dc2006abfa
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.
1
2
3
A
C33
1uF
B
12.1K
R34
100K
R40
115k
R44
4
3
2
1
R23
1Meg
C18
1uF
16V
5
R46
10k
1
Q12
MMBTA42
R50
8.66K
C26
10nF
C28 0.1uF
D14
PDZ7.5B
R3
3.32K
3
2
+VIN
1
2
B
U3
402
1
FS
RUN
FB
ITH
SSFLT
SYNC_AUX
SYNC
ISENSE
OC
VCC
Gate
1k
R38
R32
0.1
C
2.2uF
50V
1206
C21
C
+ C19
15uF
R42
BIAS
JP12
OPT
AUX
VIN
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
CUSTOMER NOTICE
C24
2.2uF
R47
0
3
2
1
+VIN
1
C31
2.2uF
0805
PZTA42
Q17
D
SCALE = NONE
HZ
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
PD3S160
D15
VBIAS
D
4
2
3
+VIN
Figure 6. DC2006A-B Bias Circuitry
6
7
8
9
10
3
4
3
Q16
FDC5612
2
1
T2
DRQ73-101-R
D17 BAS516
2
LTC3805EMSE-5
R45
R4
OPT
GND
11
1
2
5
6
4
1
D16
PDZ12B
R41
10K
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
E
DATE:
N/A
SIZE
E
LTC3862EUH-2
DEMO CIRCUIT 2006A-B
Thursday, September 26, 2013
IC NO.
SHEET 2
2
OF 2
REV.
HIGH POWER, HIGH VOLTAGE STEP-UP CONVERTER
TITLE: SCHEMATIC
2
4
A
1
2
3
4
DEMO MANUAL DC2006A-B
Schematic Diagram
dc2006abfa
9
DEMO MANUAL DC2006A-B
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
10 Linear Technology Corporation
dc2006abfa
LT 0415 REV A • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507 ● www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2013