Linear Technology DC2069A Quick setup guide

1
dc2069afb
DEMO MANUAL DC2069A
Description
LT8490
High Efficiency MPPT Battery
Charger Controller
Demonstration circuit 2069A features LT
®
8490, a high
performance buck-boost converter that implements an
MPPT function and flexible charging profiles suitable for
most battery types such as flooded and sealed lead acid
batteries and Lithium-Ion batteries, and can operate from
inputvoltagesabove,beloworequaltothebattery voltage.
The demo board is configured for a 17V to 54V input volt-
age range and the power source can be a solar panel with
36 to 72 cells (up to 200W) or a DC voltage source. Tw o
input connectors are provided. An LTC4359 ideal diode
controllerprotectstheDCpower supply outputfrombeing
back fed from the solar panel. This allows, for example,
that a 24VDC supply is plugged in while a solar panel with
higher voltage is being used to power the circuit.
On-chiplogicprovidesautomatictruepowerpointtracking
for solar powered applications. The MPPT function not
only continuously tracks the maximum power point, it is
able to select the correct maximum on the power curve
to increase power harvested from the panel during partial
shadeconditions,whenmultiplepeaksoccuronthepower
curve. During periods of low light, a low power mode al-
lows the charger to deliver a small charge current even if
there is not enough light for the MPPT function to operate.
The demo board output is set up for charging a 12V SLA
battery with up to 16.6A charge current. Tw o charge
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
configuration headers are provided so the user can select
different charge algorithms.
There are two onboard LEDs that display information on
the charge stage, and they will blink fault messages if the
charger shuts down because of a fault. A simple serial
interfacealsosendsoutstatusbytesthatcanbeinterpreted
by external circuitry.
An RJ25 modular jack can be used to connect an external
NTC temperature sensor mounted at the battery. This
allows temperature compensation of the charge voltage,
which is important for lead acid batteries. The same con-
nector can be used for remote sensing of battery voltage,
to compensate for voltage drops in long battery cables.
The LT8490 data sheet gives a complete description of
thedevice,operation andapplicationinformation.Thedata
sheet must be read in conjunction with this demo manual
for DC2069A. The LT8490EUKJ is assembled in a 64-lead
(7mm × 11mm) plastic QFN package with a thermal pad
underneath the chip. Proper board layout is essential for
maximum thermal performance.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2069A
Specifications are at TA= 25°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Supply Range Note: Output Power Is Limited by Input Current Limit
When VIN < 24V (See Figure 2) 17 30 54 V
VOUT Charge Voltage 14.2 V
IIN Maximum Input Current 10 A
IOUT Maximum Output Current VIN > 24V, VOUT = 12V 16.6 A
FSW Switching Frequency 200 kHz
EFF Efficiency at DC input VIN = 28V, VOUT = 14V, IOUT = 15A
VIN = 48V, VOUT = 14V, IOUT = 15A
VIN = 24V, VOUT = 14.2V, IOUT = 8A
96.3
95.6
97.3
%
%
%
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dc2069afb
DEMO MANUAL DC2069A
performance summary
CHARGE CURRENT (A)
90
EFFICIENCY (%)
DISSIPATION (W)
96
100
95
99
98
97
91
94
93
92
0
2
12
10
20
8
6
4
18
16
14
2 6 10 14
DC2069A F01
180 4 8 12 16
EFFICIENCY
DISSIPATION
INPUT VOLTAGE (V)
0
CURRENT (A)
12
18
10
16
14
2
8
6
4
20 40
DC2069A F02
10 30 5025 4515 35 55
IOUT
IIN
Figure 1. Efficiency as a Function of Charge Current.
VIN = 28V, VOUT = 14.2V
Figure 2. Input and Output Currents as a Function
of Input Voltage. VOUT = 13.6V
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dc2069afb
DEMO MANUAL DC2069A
1. Connect a 12V lead acid battery to the VBAT connector,
makingsurethatthepolarityiscorrect.Asuitablebattery
size is a 150Ah 12V deep cycle sealed lead acid battery,
but also smaller 12V lead acid batteries can be used
for testing the charging functions. Use a short battery
cable that is rated for 15A or higher.
2. Connect the solar panel to the PANEL IN connector,
making sure that the polarity is correct. A suitable panel
is a 250W60 cell solar panel, but any panel with 36 to
72 cells (54V maximum open circuit voltage) can be
used.
3. Point the solar panel towards sunlight and monitor
the MPPT charger function under different conditions,
using ampere meters and voltmeters and other test
equipment as needed.
4. The charger will also work with a DC power supply
connected to the DC IN connector. Disconnect the solar
panel before turning on the DC supply. (The charger
can operate from both power sources simultaneously.
However,theMPPTfunctionwillbedisabledwhilethere
is DC voltage on the DC IN input, so the solar panel
may not be operating at its maximum power point if
the charger is also powered from the DC IN connector.)
A suitable supply is a 24Vdc supply that can deliver at
least 12A, but any DC power supply that has an output
voltage in the range 10V to 54V and is able to deliver
250W power or 12A current can be used for evaluation.
5. Note that the charger will not start unless the output
voltage is above 4.5V. This means that if the battery
is replaced by an active programmable load during
evaluation,asmall powersupplyneeds tobeconnected
across the load to start the charger. A small 9V battery
with a diode in series works fine.
6. Read the LT8490 data sheet for more detail on the
function of the circuit and how to change the charge
algorithm.
Quick start proceDure
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dc2069afb
DEMO MANUAL DC2069A
parts List
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 1 C12 CAP., X7R, 1nF, 16V, 20%, 0603 AVX, 0603YC102MAT4A
2 2 C13, C47 CAP., X5R, 0.22uF, 16V, 10%, 0603 AVX, 0603YD224KAT2A
3 2 C14, C15 CAP., X7R, 3.3nF, 16V, 20%, 0603 AVX, 0603YC332MAT4A
4 5 C41, C42, C43, C44, C46 CAP., X7R, 2.2µF, 100V 10%, 1210 AVX, 12101C225KAT2A
5 3 C45, C79, C58 EP-cap, 33µF, 63V, 20% SUNCON, 63HVH33M
6 4 C48, C49, C50, C51 CAP., X7R, 10µF, 35V 10%, 1210 MURATA, GRM32ER7YA106KA12L
7 1 C55 EP-CAP, 150µF, 25V, 20% SANYO, 25HVH150M
8 2 C56, C57 CAP., X5R, 2.2µF, 10V, 10%, 0603 AVX, 0603ZD225KAT2A
9 1 C59 CAP., X7R, 0.1µF, 16V, 10%, 0603 AVX, 0603YC104KAT2A
10 2 C60, C61 CAP., X7R,4.7nF, 16V, 10%, 0603 AVX, 0603YC472KAT2A
11 1 C62 CAP., NP0, 220p, 16V, 5%, 0603 AVX, 0603YA221JAT2A
12 1 C63 CAP, X7R, 6.8nF, 50V, 10%, 0603 AVX, 06035C682KAT2A
13 1 C65 CAP., X7R, 1µF, 100V, 10%, 1210 AVX, 12101C105KAT2A
14 2 C66, C73 CAP., X7R, 1.0µF, 16V, 10%, 0603 AVX, 0603YC105KAT2A
15 2 C67, C68 CAP., X7R, 0.068µF, 16V, 10%, 0603 AVX, 0603YC683KAT2A
16 1 C69 CAP., X5R, 4.7µF, 6.3V, 10%, 0603 AVX, 06036D475KAT2A
17 2 C83, C84 CAP., X7R, 0.47uF, 16V, 10%, 0603 MURATA, GRM188R71C474KA88D
18 1 C85 CAP., C0G, 1000pF, 100V, 10%, 1206 AVX, 12061A102KAT2A
19 2 C87, C90 CAP., X7R, 0.01µF, 100V, 10%, 0603 MURATA, GRM188R72A103KA01D
20 2 D1, D2 ULTRA FAST RECTIFIER SINGLE, SOD-123F CENTRAL SEMI., CMMR1U-02 TR
21 1 L1 IND, 4.7µH COILCRAFT, SER2915L-472KL
22 1 M1 MOSFET, N-CHANNEL, 60V PG-TDSON-8 INFINEON, BSC028N06NS
23 1 M2 MOSFET, N-CHANNEL, 60V PG-TDSON-8 INFINEON, BSC016N06NS
24 2 M3, M4 MOSFET, N-CHANNEL, 25V PG-TDSON-8 INFINEON, BSC010NE2LSI
25 1 R2 RES., CHIP, 196k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF1963V
26 1 R3 RES., CHIP, 8.06k, 0.1W, 1%, 0603 VISHAY, CRCW06038k06FKEA
27 5 R5, R8, R9, R23, R24 RES., CHIP, 10Ω, 0.1W, 1%, 0603 VISHAY, CRCW060310R0FKEA
28 1 R11 RES., CHIP, 110k, 0.1W, 1%, 0603 VISHAY, CRCW0603110KFKEA
29 1 R13 RES., CHIP, 113k, 0.1W, 1%, 0603 VISHAY, CRCW0603113KFKEA
30 1 R14 RES., CHIP, 35.7k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF3572V
31 1 R15 RES., CHIP, 1.2, 0.25W, 1%, 1206 VISHAY, CRCW12061R20FKEA
32 1 R16 RES., CHIP, 10k, 0.1W, 1%, 0603 VISHAY, CRCW060310K0FKEA
33 1 R44 RES., SENSE, 0.004Ω, 2W, 1%, 2512 SUSUMU, RL3264SW4-004M-F-T5
34 1 R47 RES., CHIP, 215k, 0.1W, 1%, 0603 VISHAY, CRCW0603215KFKEA
35 1 R48 RES., CHIP, 21.0k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF2102V
36 1 R49 RES., CHIP, 124k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF1243V
37 1 R50 RES., CHIP, 4.99k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF4991V
38 1 R54 RES., CHIP, 3.48k, 0.1W, 1%, 0603 VISHAY, CRCW06033K48FKEA
39 1 R55 RES., CHIP, 5.90k, 0.1W, 1%, 0603 VISHAY, CRCW06035K90FKEA
40 1 R56 Res., SENSE, 0.005Ω, 1W, 1%, 2512 PANASONIC, ERJM1WTF5M0U
41 1 R57 RES., CHIP, 0.003, 2W, 1%, 2512 PANASONIC, ERJM1WTF3M0U
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dc2069afb
DEMO MANUAL DC2069A
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
42 1 R62 RES., CHIP, 3.3Ω, 0.1W, 5%, 0603 PANASONIC, ERJ-3GEYJ3R3V
43 1 R63 RES., CHIP, 1.10k, 0.1W, 1%, 0603 VISHAY, CRCW06031K10FKEA
44 1 R64 RES., CHIP, 3.01k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF3011V
45 1 R65 RES., CHIP, 30.1k, 0.1W, 1%, 0603 VISHAY, CRCW060330K1FKEA
46 2 R67, R71 RES., CHIP, 53.6k, 0.1W, 1%, 0603 VISHAY, CRCW060353K6FKEA
47 1 U1 IC., BATTERY CHARGE CONTROLLER, 64-QFN LINEAR TECH., LT8490EUKJ#PBF
48 1 FAB, PRINTED CIRCUIT BOARDS DEMO CIRCUIT 2069A
49 1 STENCIL (TOP AND BOTTOM IMAGES) STENCIL DC2069A
Optional Components
50 1 C74 CAP., X7R, 0.1µF, 16V, 10%, 0603 AVX, 0603YC104KAT2A
51 1 C76 CAP., X7R, 2.2uF, 100V, 10%, 1206 AVX, 12061C225KAT2A
52 1 C77 CAP., X7R, 0.01µF, 16V, 10%, 0603 AVX, 0603YC103KAT2A
53 1 D10 LED, GREEN, 0603 ROHM, SML-512PW (A)
54 1 D12 LED, RED, 0603 ROHM, SML-512UW
55 1 D14 DIODE, TVS UNI-DIR 70V 400W SMA DIODES INC., SMAT70A-13-F
56 1 D15 DIODE, TVS UNI-DIR 24V 400W SMA DIODES INC., SMAJ24A-13-F
57 1 D16 DIODE, ZENER 12V 150MW SOD523 DIODES INC., DDZ9699T-7
58 3 D19, D20, D21 DIODE, BAV99 SOT23 DIODES INC., BAV99-7-F
59 1 F1 FUSE LITTELFUSE, 142.6185.5306
60 1 F1 FUSE HOLDER LITTELFUSE, 178.4265.0002
61 3 JP1, JP3, JP4 4 PIN 0.100 SINGLE ROW HEADER SAMTEC, TSW-104-07-L-S
62 2 XJP1, XJP4 SHUNT, 0.1" CENTER SAMTEC, SNT-100-BK-G
63 3 J1, J2, J3 HOUSING, +PIN, RED ANDERSON POWER, 1327
64 3 J1, J2, J3 HOUSING, –PIN, BLACK ANDERSON POWER, 1327G6
65 3 J1, J2, J3 STAPLES FOR PCB ASSY. ANDERSON POWER, 114555P2
66 6 J1, J2, J3 RIGHT ANGLE PCB CONTACTS ANDERSON POWER, 1377G12
67 1 J4 MODULAR JACK TE CONNECTIVITY, 5555165-1
68 1 L2 IND, 0Ω 0603 VISHAY, CRCW06030000Z0ED
69 1 M5 MOSFET, N-CHANNEL, 100V POWER 56 FAIRCHILD, FDMS86101
70 0 M1-1, M2-1, M3-1, M4-1
(OPT)MOSFET, N-CHANNEL
71 3 Q4, Q13, Q14 NPN TRANSISTOR, SOT23 DIODES INC., MMBT3904-7-F
72 1 Q6 P-CH MOSFET, 50V, SOT23 DIODES, BSS84-7-F
73 1 R26 RES., CHIP, 10Ω, 0.1W, 1%, 0603 VISHAY, CRCW060310R0FKEA
74 1 R6 RES., CHIP, 3.32k, 0.1W, 1%, 0603 VISHAY, CRCW06033K32FKEA
75 1 R12 RES., CHIP, 1.3k, 0.1W, 1%, 0603 VISHAY, CRCW06031K30FKEA
76 2 R46, R94 RES., CHIP, 10k, 0.1W, 1%, 0603 VISHAY, CRCW060310K0FKEA
77 2 R17, R19 RES., CHIP, 100Ω, 1W, 1%, 2512 PANASONIC, ERJ-1TNF1000U
78 1 R21 RES., CHIP, 10Ω, 1/8W, 1%, 0805 PANASONIC, ERJ-6ENF10R0V
79 6 R22, R60, R66, R69, R100,
R101 RES., CHIP, 0Ω, 0.1W, 0603 VISHAY, CRCW06030000Z0ED
80 1 R84 RES., CHIP, 215k, 0.1W, 1%, 0603 VISHAY, CRCW0603215KFKEA
parts List
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dc2069afb
DEMO MANUAL DC2069A
parts List
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
81 3 R96, R97, R99 RES., CHIP, 4.99k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF4991V
82 3 R51, R58, R86 RES., CHIP, 1Ω, 0.1W, 1%, 0603 VISHAY, CRCW06031R00FKEA
83 1 R52 RES., CHIP, 1k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF1001V
84 2 R53, R85 RES., CHIP, 100k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF1003V
85 1 R61 RES., CHIP, 33.2k, 0.1W, 1%, 0603 VISHAY, CRCW060333K2FKEA
86 1 R68 RES., CHIP, 102k, 0.1W, 1%, 0603 VISHAY, CRCW0603102KFKEA
87 1 R73 RES., CHIP, 11.3k, 0.1W, 1%, 0603 VISHAY, CRCW060311K3FKEA
88 2 R75, R77 RES., CHIP, 549Ω, 0.1W, 1%, 0603 VISHAY, CRCW0603549RFKEA
89 2 R83 RES., CHIP, 27.4k, 0.1W, 1%, 0603 VISHAY, CRCW060327K4FKEA
90 1 R89 RES., CHIP, 19.1k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF1912V
91 1 R90 RES., CHIP, 80.6k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF8062V
92 1 R91 RES., CHIP, 41.2k, 0.1W, 1%, 0603 PANASONIC, ERJ-3EKF4122V
93 1 R92 RES., CHIP, 59.0k, 0.1W, 1%, 0603 VISHAY, CRCW060359K0FKEA
94 1 R93 RES., CHIP, 11.5k, 0.1W, 1%, 0603 VISHAY, CRCW060311K5FKEA
95 1 SW1 SWITCH, TACTILE SPST-NO 0.05A 12V WÜRTH, 434 123 050 816
96 1 U2 IC., IDEAL DIODE CONTROLLER, DFN-6L LINEAR TECH., LTC4359CDCB#TRPBF
97 1 U3 IC., OP AMP, SO8 LINEAR TECH., LT1636CS8#PBF
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7
dc2069afb
DEMO MANUAL DC2069A
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
6
6
5
5
4
4
3
3
2
2
1
1
4 4 3 3 2 2 1 1
36cell - 72cell
NOTES (UNLESS OTHERWISE SPECIFIED): 1- ALL SMD CAPACITORS ARE 16V. 2- ALL SMD CAPACITORS AND RESISTORS ARE 0603.
VBAT
PANEL IN
LT8490
STATUS
FAULT
ENABLE
remote sense circuit for battery voltage.
Remove R94 when external battery temp sensor is used
( 6.3V ) ( 3.3V )
SGND
DC IN
+
-
+
-
+
-
INPUT FOR OPTIONAL VOLTAGE SOURCE
12V Lead acid
12V SLA
*
*
17V - 54V
*
*
SEE DEMO MANUAL FOR DETAILS
BG2
TG1 TG2
VDD
VBATVIN1
VIN1
PGND
EXTVCC
TG1
SW2
SW1
VDD
VDD
VDD
INTVCC
EXTVCC
VIN
VIN
STATUS
VDD
FAULT
INTVCC
FAULT
STATUS
TG1
BG1
TG2
SW1
SW2
A
A
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
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.
www.linear.com
5
DEMO CIRCUIT 2069A
Thursday, April 03, 2014 11
HIGH EFFICIENCY MPPT
N/A
LT8490
BATTERY CHARGER CONTROLLER
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
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.
www.linear.com
5
DEMO CIRCUIT 2069A
Thursday, April 03, 2014 11
HIGH EFFICIENCY MPPT
N/A
LT8490
BATTERY CHARGER CONTROLLER
SIZE DATE:
IC NO. REV.
SHEET OF
TITLE:
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.
www.linear.com
5
DEMO CIRCUIT 2069A
Thursday, April 03, 2014 11
HIGH EFFICIENCY MPPT
N/A
LT8490
BATTERY CHARGER CONTROLLER
R92
59.0K
R92
59.0K
C54
DNI
1210
C54
DNI
1210
C72
OPT 1210
C72
OPT 1210
D18 OPT D18 OPT R21
10
0805
R21
10
0805
Q5
OPT
Q5
OPT
1
3 2
D20
BAV99
D20
BAV99
R58
1
R58
1
R68
102K
1%
R68
102K
1%
Q13 MMBT3904 Q13 MMBT3904
2 3
1
L2 0 ohm
0603
L2 0 ohm
0603
R48
21.0K
R48
21.0K
R27
OPT
R27
OPT
D16
DDZ9699T
12V D16
DDZ9699T
12V
C86
OPT 1206
C86
OPT 1206
D1
CMMR1U-02
D1
CMMR1U-02
2 1
R88
OPT
R88
OPT
R11
110K
R11
110K
R69 0 R69 0
Q6 BSS84 Q6 BSS84
1
3 2
C83
0.47uF
C83
0.47uF
+
C78
OPT
+
C78
OPT
R56
.005 1W 2512
R56
.005 1W 2512
C57 2.2µFC57 2.2µF
C66 1uF C66 1uF
C69
4.7µF
C69
4.7µF
R59
OPT
R59
OPT
+
C82
OPT
+
C82
OPT
12
C59 0.1uF C59 0.1uF
D28
OPT
D28
OPT
C51
10uF
1210
35V C51
10uF
1210
35V
D27
OPT
D27
OPT
D8
YELLOW
OPT
D8
YELLOW
OPT
12
C56 2.2µFC56 2.2µF
J1J1
2 1
C48
10uF
35V
1210
C48
10uF
35V
1210
R5 10 R5 10
R97
4.99K
R97
4.99K
C89
OPT
0805 C89
OPT
0805
R51
1
R51
1M4-1
OPT M4-1 OPT
3
5 6
2 1
7 4
M4
BSC010NE2LSI
M4
BSC010NE2LSI
4
53 62
1 7
8
C60 4.7nF
16V
C60 4.7nF
16V
C14
3.3nF
C14
3.3nF
M5
FDMS86101
M5
FDMS86101
4
53 62
1 7
8
C85
1000pF
1206 100V
C85
1000pF
1206 100V
R90
80.6K
R90
80.6K
REMOTE SENSE
J4
REMOTE SENSE
J4
3 2 1 4 5 6
R15
1.2
1206
R15
1.2
1206
Q4
MMBT3904
Q4
MMBT3904
1
32
F1
30A
F1
30A
R99
4.99K
R99
4.99K
R64 3.01K R64 3.01K
U1U1
INTVCC
7
MODE
9
IMONIN
10
SHDN
11
CSN 12
CSP 13
LDO33
14
FBIN
15
FBOUT 16
17
IMONOUT
RT
22 BG2 25
GATEVCC
24
BG1 23
BOOST2 27
TG2 28
SW2 29
SW1 31
TG1 32
BOOST1 33
EXTVCC
40
CSNOUT 41
CSPOUT 42
CSNIN
44
CSPIN
45
VIN
46
SYNC
21
VC
18
SS
19
CLKOUT
20
N/C 60 N/C 52
SRVO_FBOUT 38
SRVO_FBIN 35
SRVO_IIN 36
SRVO_IOUT 37
SWEN 8
FBIR
1
FAULT 2
TEMPSENSE
3
VDD
4
FBOW 5
FBIW
6
STATUS 51
IOW
50
SWENO 49
ECON 48
IIR
53
VINR
54
GND
55
CLKDET
56
FBOR 57
GND
59
AVDD
58
CHARGEDCFG1
61
GND
62
CHARGEDCFG2
63
IOR
64
GND
65
R8
10
R8
10
R22
0
R22
0
R49 124K R49 124K
R79
OPT
R79
OPT
R66 0 R66 0
+
C80
+
C80
12
C53
DNI
1210
C53
DNI
1210
D21
BAV99
D21
BAV99
C41
2.2µF 100V 1210
C41
2.2µF 100V 1210
- +
U3
LT1636/SO
- +
U3
LT1636/SO
1
2 3
5
6
874
R39
OPT
R39
OPT
R96
4.99K
R96
4.99K
C49C49
M2
BSC016N06NS
M2
BSC016N06NS
4
53 62
1 7
8
R3 8.06K R3 8.06K
Q14 MMBT3904 Q14 MMBT3904
2 3
1
R46
10K
R46
10K
C62
220p
C62
220p
R54 3.48K R54 3.48K
M3
BSC010NE2LSI
M3
BSC010NE2LSI
4
53 62
1 7
8
C47
0.22uF
C47
0.22uF
JP1
CONFIG1
JP1
CONFIG1
2 1 3 4
U2
LT4359CDCB
U2
LT4359CDCB
OUT
1
GATE
2
SOURCE
3
IN
4
SHDN
5
VSS
6
VSS
7
C74 0.1uF C74 0.1uF
R91
41.2K
R91
41.2K
C75C75
C67 0.068µ C67 0.068µ
R50 4.99K R50 4.99K
C15 3.3nF C15 3.3nF
R17 100
1W
2512
R17 100
1W
2512
C64C64
C90
0.01uF
100V
C90
0.01uF
100V
R89
19.1K
R89
19.1K
R93
11.5K
R93
11.5K
M2-1 OPT M2-1 OPT
3
5
6
2
1
7
4
R6 3.32K R6 3.32K
C46
2.2µF
100V
1210
C46
2.2µF
100V
1210
C88
OPT 0805
C88
OPT 0805
C77
0.01uF
C77
0.01uF
C42
2.2µF
100V
1210
C42
2.2µF
100V
1210
C73
1uF
C73
1uF
R4
OPT
R4
OPT
+
C45
33µF
63V
+
C45
33µF
63V
SW1SW1
R12 1.3K R12 1.3K
R101
0
R101
0
R13
113K
R13
113K
R23
10
R23
10
R65
30.1K
R65
30.1K
R84
215K
R84
215K
M1
BSC028N06NS
M1
BSC028N06NS
4
5 3 6 2
17
8
+
C79
+
C79
C68
0.068uF
C68
0.068uF
R55
5.90K
R55
5.90K
R62
3.3
R62
3.3
R14
35.7K
R14
35.7K
D10
GREEN
D10
GREEN
12
R43
OPT
R43
OPT
R16
10.0K
R16
10.0K
C61
4.7nF
C61
4.7nF
R53
100K
R53
100K
C63
6.8n
25V
C63
6.8n
25V
R87
OPT
R87
OPT
M3-1
OPT
M3-1
OPT
3
5
6
2
1
7
4
R9 10 R9 10
R67 53.6KR67 53.6K
R19
100
1W
2512
R19
100
1W
2512
R18
OPT
0805
R18
OPT
0805
D2
CMMR1U-02
D2
CMMR1U-02
2 1
C13
0.22uF
C13
0.22uF
D26
OPT
D26
OPT
R57
.003 2W 2512
R57
.003 2W 2512
R63 1.1KR63 1.1K
JP3JP3
2 1 3 4
D19 BAV99 D19 BAV99
C70
1210
C70
1210
C71
OPT
C71
OPT
R60
0
R60
0
D22 OPT D22 OPT
R77
549
R77
549
C43
2.2µF 100V 1210
C43
2.2µF 100V 1210
C12
1nF
C12
1nF
R20
OPT
R20
OPT
+
C81
+
C81
12
R41 OPT R41 OPT
D12
RED
D12
RED
12
Q11 OPT Q11 OPT
2 3
1
R47 215K R47 215K
D24
OPT
D24
OPT
D23
OPT
D23
OPT
D14 SMAT70A D14 SMAT70A
R38
OPT
R38
OPT
C87
0.01uF
100V
C87
0.01uF
100V
JP2 OPT JP2 OPT
2 1 3 4
R75
549
R75
549
R86 1R86 1
M1-1
OPT
M1-1
OPT
3
5 6
2 1
7 4
R71 53.6KR71 53.6K
R61
33.2K
R61
33.2K
R83
27.4K
R83
27.4K
D25
OPT
D25
OPT
R100 0 R100 0
J3J3
2 1
R73
11.3K
R73
11.3K
R26
10
R26
10
R25
OPT
1206
R25
OPT
1206
D15 SMAJ24A D15 SMAJ24A
C52
DNI
1210
C52
DNI
1210
R85 100K R85 100K
C76 2.2uF
100V 1206
C76 2.2uF
100V 1206
+
C58
+
C58
R52
1K
R52
1K
+
C55
150uF
25V
+
C55
150uF
25V
12
R94
10K
R94
10K
JP4
CONFIG2
JP4
CONFIG2
2 1 3 4
C50 10uF
1210
35V
C50 10uF
1210
35V
C65 1µF 1210 100V C65 1µF 1210 100V
C84
0.47uF
C84
0.47uF
R24 10 R24 10
L1
4.7µH
SER2915L-472KL
L1
4.7µH
SER2915L-472KL
C44
2.2µF 100V
1210
C44
2.2µF 100V
1210
J2J2
2 1
R2
196K
R2
196K
R44
0.004 2512
1W R44
0.004 2512
1W
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8
dc2069afb
DEMO MANUAL DC2069A
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ●FAX: [phone] ●www.linear.com
 LINEAR TECHNOLOGY CORPORATION 2014
LT 0915 REV B • PRINTED IN USA
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
Thisdemonstration board(DEMO BOARD)kit beingsold orprovided byLinear Technologyis intendedfor usefor 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. 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.
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 applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
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