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Analog Devices EVAL-LT8350-AZ, Руководство пользователя

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7

DEMO MANUAL 

EVAL-LT8350-AZ

Rev. 0

PARTS LIST

ITEM QTY REFERENCE

PART DESCRIPTION

MANUFACTURER/PART NUMBER

Required Electrical Components

1

1

U1

IC, BUCK-BOOST VOLTAGE REGULATOR, LQFN-32

ANALOG DEVICES, LT8350RV#PBF

2

1

L1

IND., 6.8μH, PWR, SHIELDED, 20%, 9A, 20.80mΩ, 6.56mm × 

6.36mm, AEC-Q200, XAL6060

COILCRAFT, XAL6060-682MEB

3

1

C3

CAP., 4.7μF, X5R, 10V, 20%, 0402, AEC-Q200

MURATA, GRT155R61A475ME13D

4

8

C4, C8, C9, C17, 

C26, C27, C32, C33

CAP., 0.1μF, X7R, 50V, 10%, 0402, AEC-Q200

MURATA, GCM155R71H104KE02D

5

1

C5

CAP., 0.47μF, X7S, 10V, 10%, 0402, AEC-Q200

MURATA, GCM155C71A474KE36D

6

1

C6

CAP., 4700pF, X7R, 25V, 10%, 0402, AEC-Q200

YAGEO, AC0402KRX7R8BB472

7

4

C7, C13, C16, C19

CAP., 22μF, X7R, 16V, 20%, 1210, AEC-Q200

TDK, CGA6P1X7R1C226M250AC

8

4

C10, C11, C22, C23 CAP., 10μF, X7S, 50V, 10%, 1210, AEC-Q200

MURATA, GCM32EC71H106KA03L

9

1

R3

RES., 10k, 1%, 1/10W, 0402, AEC-Q200

PANASONIC, ERJ2RKF1002X

10

1

R4

RES., 143k, 1%, 1/16W, 0402

VISHAY, CRCW0402143KFKED

11

1

R5

RES., 12k, 1%, 1/16W, 0402, AEC-Q200

VISHAY, CRCW040212K0FKED

12

1

R7

RES., 402k, 1%, 1/10W, 0402, AEC-Q200

PANASONIC, ERJ2RKF4023X

13

1

R12

RES., 84.5k, 1%, 1/10W, 0402, AEC-Q200

PANASONIC, ERJ2RKF8452X

14

2

R13, R14

RES., 100k, 5%, 1/16W, 0402, AEC-Q200

VISHAY, CRCW0402100KJNED

15

1

R22

RES., 110k, 1%, 1/16W, 0402, AEC-Q200

VISHAY, CRCW0402110KFKED

Optional Low EMI Components

16

1

L2 (REMOVE AND 

SHORT)

IND., 2.2μH, PWR, SHIELDED, 20%, 9.7A, 14.5mΩ, 5.48mm × 

5.28mm, XAL5030, AEC-Q200

COILCRAFT,  XAL5030-222MEB

17

1

C12 (REMOVE)

CAP., 10μF, X7S, 50V, 10%, 1210, AEC-Q200

MURATA, GCM32EC71H106KA03L

18

1

C29 (REMOVE)

CAP., 4.7μF, X7R, 16V, 10%, 0805, AEC-Q200

MURATA, GCM21BR71C475KA73L

19

1

FB3 (REMOVE AND 

SHORT) 

IND., 220Ω AT 100MHz, FERRITE BEAD, 25%, 3A, 40mΩ, 0805, 

AEC-Q200

TDK, MPZ2012S221ATD25

20

0

C1, C2, C20, C21

CAP., OPTION, 1210

21

0

C14, C28

CAP., OPTION, 0805

22

0

FB1, FB2

IND., 220Ω AT 100MHz, FERRITE BEAD, 25%, 3A, 40mΩ, 0805,  

AEC-Q200

TDK, MPZ2012S221ATD25

Optional Electrical Components

23

1

R1 (REMOVE AND 

SHORT)

RES., 0.010Ω, 1%, 1W, 0805 LONG-SIDE, AEC-Q200, 

CURRENT SENSE

SUSUMU, KRL2012E-M-R010-F-T5

24

2

R2, R10 (REMOVE 

AND SHORT)

RES., 0Ω, 1/16W, 0402, AEC-Q200

VISHAY, CRCW04020000Z0ED

25

1

R17 (REMOVE)

RES., 3.01k, 1%, 1/10W, 0402, AEC-Q200

PANASONIC, ERJ2RKF3011X

26

1

VR1 (REMOVE)

RES., 20k, 20%, 1/8W, SMD 3mm SQ, 1-TURN, TOP ADJ., TRIMPOT BOURNS, 3313J-1-203E

27

0

R8, R9, R11, R15, 

R16, R18-R20

RES., OPTION, 0402

Содержание EVAL-LT8350-AZ

Страница 1: ... for a LED driver or a battery charger where constant cur rent regulation is required Output current can be adjusted by placing a controllable DC voltage on the CTRL pin All registered trademarks and trademarks are the property of their respective owners The output current can be monitored through the ISMON output pin ISMON can be used to improve load transient response by injecting load current t...

Страница 2: ...V Output Voltage Ripple VIN 12V VOUT 12V IOUT 2 5A 50 mV Maximum Output Current 7 0V VIN 40V VOUT 12V 2 5 A Switching Frequency fSW R4 143k SSFM OFF R4 143k SSFM ON 350 350 to 440 kHz kHz Typical Efficiency without EMI filters VIN 12V VOUT 12V IOUT 2 5A 95 Typical Efficiency with EMI filters VIN 12V VOUT 12V IOUT 2 5A 94 Peak Switch Current Limit 6 7 8 A VOUT Overvoltage Threshold R22 110k R3 10 0...

Страница 3: ...ply with power off and meters as shown in Figure 1 3 Set JP1 at NO SSFM to disable SSFM at SSFM to enable SSFM 4 Set JP2 at RC for typical loop compensation at RC FF forloadcurrentinjectionschemewhichimprovesload transient response 5 Afterallconnectionsaremade turnontheinputpower andverifythattheinputvoltageisbetween7Vand40V 6 Remove the clip on lead from EN UVLO Verify that the output voltage is ...

Страница 4: ...pple at 12V Input Voltage and 2 5A Load 200µs DIV LOAD CURRENT 2A DIV VOUT 500mV DIV AC COUPLED EVAL 8350 F04 Figure 4 EVAL LT8350 AZ Transient Response with JP1 FCM SSFM and JP2 RC 12VIN 12VOUT 2 5A to 1 25A 200µs DIV LOAD CURRENT 2A DIV VOUT 500mV DIV AC COUPLED EVAL 8350 F05 Figure 5 EVAL LT8350 AZ Transient Response with JP1 FCM SSFM and JP2 RC 12VIN 12VOUT 2 5A to 0A Figure 6 EVAL LT8350 AZ T...

Страница 5: ...PONSE As EVAL LT8350 AZ uses R1 10mΩ and R17 3 01kΩ VR1 is determined to 1 2kΩ Figure 8 and Figure 9 show half to full load transient response and zero to full load transient response respectively with the load current injection scheme JP2 RC FF and VR1 1 2kΩ It is shown that the output voltage drop is smaller than Figure 4 and Figure 5 With the load current injection output voltage drop can be re...

Страница 6: ...10 0 10 20 30 40 50 60 AVERAGE CE dBµA EVAL 8350 F11a a CISPR25 Average Current Method CLASS 5 PEAK LIMIT EVAL LT8350 AZ AMBIENT FREQUENCY MHz 0 1 1 10 100 300 60 50 40 30 20 10 0 10 20 30 40 50 60 PEAK CE dBµA EVAL 8350 F11b b CISPR25 Peak Current Method Figure 11 EVAL LT8350 AZ CISPR25 Current Conducted EMI Performance with 12VIN to 12VOUT at 2 5A JP1 DCM SSFM CLASS 5 AVERAGE LIMIT EVAL LT8350 A...

Страница 7: ...IC ERJ2RKF4023X 13 1 R12 RES 84 5k 1 1 10W 0402 AEC Q200 PANASONIC ERJ2RKF8452X 14 2 R13 R14 RES 100k 5 1 16W 0402 AEC Q200 VISHAY CRCW0402100KJNED 15 1 R22 RES 110k 1 1 16W 0402 AEC Q200 VISHAY CRCW0402110KFKED Optional Low EMI Components 16 1 L2 REMOVE AND SHORT IND 2 2μH PWR SHIELDED 20 9 7A 14 5mΩ 5 48mm 5 28mm XAL5030 AEC Q200 COILCRAFT XAL5030 222MEB 17 1 C12 REMOVE CAP 10μF X7S 50V 10 1210 ...

Страница 8: ...TED CHEMI CON HHXC160ARA470ME61G Hardware For Evaluation Circuit Only 32 1 JP1 CONN HDR MALE 2 4 2mm VERT ST THT WURTH ELEKTRONIK 62000821121 33 1 JP2 CONN HDR MALE 1 3 2mm VERT ST THT WURTH ELEKTRONIK 62000311121 34 2 XJP1 XJP2 CONN SHUNT FEMALE 2 POS 2mm WURTH ELEKTRONIK 60800213421 35 10 E1 E4 E7 E9 E12 E14 E16 TEST POINT TURRET 0 064 MTG HOLE PCB 0 062 THK MILL MAX 2308 2 00 80 00 00 07 0 36 5...

Страница 9: ...C26 0 1uF 50V C33 0 1uF E15 GND E14 CLKOUT C1 OPT 1210 C9 0 1uF 50V FB1 MPZ2012S221ATD25 OPT C30 HHXC160ARA470ME61G OPT M1 OPT 3 1 2 C19 22uF 16V 1210 C32 0 1uF 50V L2 2 2uH XAL5030 222MEB 1 2 R8 OPT R22 110K C11 10uF 50V 1210 VR1 20k 3313J 1 203E 1 3 2 C2 OPT 1210 C12 10uF 50V 1210 R2 0 TP1 LOADEN C10 10uF 50V 1210 R20 OPT R1 0 010 KRL2012 C24 GYA1H680MCQ1GS OPT E2 GND C25 OPT R11 OPT JP1 SYNC MO...

Страница 10: ...ot disclose or transfer any portion of the Evaluation Board to any other party for any reason Upon discontinuation of use of the Evaluation Board or termination of this Agreement Customer agrees to promptly return the Evaluation Board to ADI ADDITIONAL RESTRICTIONS Customer may not disassemble decompile or reverse engineer chips on the Evaluation Board Customer shall inform ADI of any occurred dam...

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