Linear Technology DC2069A Quick setup guide

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)

EFFICIENCY (%)

DISSIPATION (W)

100

2 6 10 14

DC2069A F01

180 4 8 12 16

EFFICIENCY

DISSIPATION

INPUT VOLTAGE (V)

CURRENT (A)

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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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

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

INTVCC

EXTVCC

VIN

STATUS

VDD

FAULT

INTVCC

FAULT

STATUS

TG1

BG1

TG2

SW1

SW2

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

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.

www.linear.com

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: (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.

www.linear.com

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: (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.

www.linear.com

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

0805

R21

0805

OPT

3 2

D20

BAV99

D20

BAV99

R58

R68

102K

R68

102K

Q13

MMBT3904

Q13

MMBT3904

2 3

0 ohm

0603

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

CMMR1U-02

2 1

R88

OPT

R88

OPT

R11

110K

R11

110K

R69 0

BSS84

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

C59

0.1uF

C59

0.1uF

D28

OPT

D28

OPT

C51

10uF

1210

35V

C51

10uF

1210

35V

D27

OPT

D27

OPT

YELLOW

OPT

YELLOW

OPT

C56 2.2µFC56 2.2µF

J1J1

C48

10uF

35V

1210

C48

10uF

35V

1210

R5 10

R97

4.99K

R97

4.99K

C89

OPT

0805

C89

OPT

0805

R51

1M4-1

OPT

M4-1

OPT

BSC010NE2LSI

53 62

1 7

C60

4.7nF

16V

C60

4.7nF

16V

C14

3.3nF

C14

3.3nF

FDMS86101

53 62

1 7

C85

1000pF

1206

100V

C85

1000pF

1206

100V

R90

80.6K

R90

80.6K

REMOTE SENSE

R15

1.2

1206

R15

1.2

1206

MMBT3904

30A

R99

4.99K

R99

4.99K

R64

3.01K

R64

3.01K

U1U1

INTVCC

MODE

IMONIN

SHDN

CSN 12

CSP 13

LDO33

FBIN

FBOUT 16

IMONOUT

22 BG2 25

GATEVCC

BG1 23

BOOST2 27

TG2 28

SW2 29

SW1 31

TG1 32

BOOST1 33

EXTVCC

CSNOUT 41

CSPOUT 42

CSNIN

CSPIN

VIN

SYNC

CLKOUT

N/C 60

N/C 52

SRVO_FBOUT 38

SRVO_FBIN 35

SRVO_IIN 36

SRVO_IOUT 37

SWEN 8

FBIR

FAULT 2

TEMPSENSE

VDD

FBOW 5

FBIW

STATUS 51

IOW

SWENO 49

ECON 48

IIR

VINR

GND

CLKDET

FBOR 57

GND

AVDD

CHARGEDCFG1

GND

CHARGEDCFG2

IOR

GND

R22

R49

124K

R49

124K

R79

OPT

R79

OPT

R66 0

C80

C53

DNI

1210

C53

DNI

1210

D21

BAV99

D21

BAV99

C41

2.2µF

100V

1210

C41

2.2µF

100V

1210

LT1636/SO

874

R39

OPT

R39

OPT

R96

4.99K

R96

4.99K

C49C49

BSC016N06NS

53 62

1 7

8.06K

Q14

MMBT3904

Q14

MMBT3904

2 3

R46

10K

R46

10K

C62

220p

C62

220p

R54

3.48K

R54

3.48K

BSC010NE2LSI

53 62

1 7

C47

0.22uF

C47

0.22uF

JP1

CONFIG1

JP1

CONFIG1

LT4359CDCB

OUT

GATE

SOURCE

SHDN

VSS

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

2512

R17

100

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

3.32K

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

OPT

C45

33µF

63V

C45

33µF

63V

SW1SW1

R12

1.3K

R12

1.3K

R101

R13

113K

R13

113K

R23

R65

30.1K

R65

30.1K

R84

215K

R84

215K

BSC028N06NS

5 3

6 2

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

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

R67 53.6KR67 53.6K

R19

100

2512

R19

100

2512

R18

OPT

0805

R18

OPT

0805

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

D19

BAV99

D19

BAV99

C70

1210

C70

1210

C71

OPT

C71

OPT

R60

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

R41

OPT

R41

OPT

D12

RED

D12

RED

Q11

OPT

Q11

OPT

2 3

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

R75

549

R75

549

R86 1R86 1

M1-1

OPT

M1-1

OPT

R71 53.6KR71 53.6K

R61

33.2K

R61

33.2K

R83

27.4K

R83

27.4K

D25

OPT

D25

OPT

R100 0

J3J3

R73

11.3K

R73

11.3K

R26

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

R52

C55

150uF

25V

C55

150uF

25V

R94

10K

R94

10K

JP4

CONFIG2

JP4

CONFIG2

C50

10uF

1210

35V

C50

10uF

1210

35V

C65 1µF 1210 100V

C84

0.47uF

C84

0.47uF

R24

4.7µH

SER2915L-472KL

4.7µH

SER2915L-472KL

C44

2.2µF

100V

1210

C44

2.2µF

100V

1210

J2J2

196K

R44

0.004

2512

R44

0.004

2512

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dc2069afb

DEMO MANUAL DC2069A

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ●FAX: (408) 434-0507 ●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

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