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DC1775A

P1-P3P4-P6P7-P8
4
dc1775afa
DEMO MANUAL DC1775A
QUICK START PROCEDURE
Output Current and Switch Node Voltage During Output Short
Output Voltage and Switch Node Voltage During Output Open
LED Current vs TRIAC Dimming Angle
Figure 8. V
IN
= 90VAC
Figure 10. V
IN
= 90VAC
Figure 9. V
IN
= 270VAC
Figure 11. V
IN
= 270VAC
IC_V
IN
20V/DIV
I
OUT
2A/DIV
V
SW
200V/DIV
100ms/DIV
IC_V
IN
20V/DIV
I
OUT
2A/DIV
V
SW
200V/DIV
100ms/DIV
TRIAC DIMMING ANGLE (DEGREES)
0
0
I
LED
(A)
0.10
0.20
0.30
30
60
90 120 150
0.40
0.50
0.05
0.15
0.25
0.35
0.45
180
220VAC 50Hz
APPLICATION
120VAC 60Hz
APPLICATION
Figure 12. LED Current vs TRIAC Dimming Angle: Solid Line, 120VAC 60Hz; Dot Line, 220VAC 50Hz.
Note: For Different Types of TRIAC Dimmers, the Maximum and/or Minimum Dimming Angle May
Vary, Which Gives Different Maximum and/or Minimum LED Current
IC_V
IN
20V/DIV
V
OUT
20V/DIV
V
SW
200V/DIV
200ms/DIV
IC_V
IN
20V/DIV
V
OUT
20V/DIV
V
SW
200V/DIV
200ms/DIV
5
dc1775afa
DEMO MANUAL DC1775A
QUICK START PROCEDURE
Input Voltage and Switch Node Voltage with 120VAC, 60Hz TRIAC Dimmer
Input Voltage and Switch Node Voltage with 220VAC, 50Hz TRIAC Dimmer
Figure 13. 165 Degree TRIAC Dimming Angle
Figure 15. 165 Degree TRIAC Dimming Angle
Figure 14. 35 Degree TRIAC Dimming Angle
Figure 16. 35 Degree TRIAC Dimming Angle
V
INAC
200V/DIV
V
SW
200V/DIV
5ms/DIV
V
INAC
200V/DIV
V
SW
200V/DIV
5ms/DIV
V
INAC
200V/DIV
V
SW
200V/DIV
5msV/DIV
V
INAC
200V/DIV
V
SW
200V/DIV
5ms/DIV
6
dc1775afa
DEMO MANUAL DC1775A
PARTS LIST
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 1 B1 RECTIFIER, BRIDGE GP 600V 0.8A MINIDIP DIODES INC., HD06-T
2 1 C1 CAP., MKP 0.047μF 310VAC 20% VISHAY, BFC233921473
3 1 C2 CAP., POLY 220nF 450V 10% RUBYCON, 450MMK224K
4 1 C3 CAP., POLYESTER FILM 47nF 400V 10% VISHAY, BFC237051473
5 2 C4, C5 CAP., ALUM 330μF 50V 20% RADIAL PANASONIC, EEU-FR1H331L
6 1 C6 CAP., CERAMIC 10μF 50V 10% 1210 MURATA, GRM32ER71H106KA12L
7 1 C7 CAP., Y5U 2200pF 400VAC 20% VISHAY, 440LD22-R
8 1 C8 CAP., NPO 4.7pF 50V ±0.25PF 0603 AVX, 06035A4R7CAT2A
9 1 C9 CAP., X5R 2.2μF 16V 20% 0603 TDK, C1608X5R1C225M
10 2 C10, C13 CAP., X7R 0.1μF 16V 10% 0603 AVX, 0603YC104KAT2A
11 1 C11 CAP., X5R 4.7μF 25V 10% 0805 AVX, 08053D475KAT2A
12 1 C12 CAP., X7R 0.022μF 25V 10% 0603 AVX 06033C223KAT1A
13 1 D1 DIODE, SCHOTTKY 1A/200V POWERDI-123 DIODES INC., DFLS1200-7
14 2 D2, D6 DIODE, SWITCH 400MA 150V SOD123 DIODES INC., BAV20W-7-F
15 1 D3 DIODE, ZENER 1.5W CENTRAL SEMI, CMZ5938B TR
16 1 D4 TVS UNIDIRECT 600W 170V SMB DIODES INC., SMBJ170A-13-F
17 1 D5 DIODE, ULTRAFAST RECOVERY RECTIFIER SOD123 CENTRAL SEMI., CMMR1U-06
18 1 F1 FUSE, 1A COOPER BUSSMANN, 1025FA1-R
19 1 L1 IND, 750μH WURTH, 750311431
20 1 L2 IND, 39mH COMMON MODE CHOKE WURTH, 744821039
21 1 Q1 MOSFET N-CHAN., 650V/7A TO-220F FAIRCHILD SEMI., FQPF7N65C
22 1 Q2 TRANS., PNP 40V 300MW SMD SOT23-3 DIODES INC., MMBT3906-7-F
23 2 R1, R2 RES., CHIP 249Ω 0.5W 1% 1210 VISHAY, CRCW1210249RFKEA
24 2 R3, R21 RES., CHIP 100k 0.06W 5% 0603 YAGEO, RC0603JR-07100KL
25 1 R4 RES., CHIP 8.06k 0.25W 1% 1206 YAGEO, RC1206FR-078K06L
26 2 R5, R17 RES., CHIP 20Ω 0.06W 5% 0603 YAGEO, RC0603JR-0720RL
27 1 R6 RES., CHIP 4.53k 0.06W 1% 0603 YAGEO, RC0603FR-074K53L
28 4 R7, R8, R12, R13 RES., CHIP 499k 0.25W 1% 1206 YAGEO, RC1206FR-07499KL
29 1 R9 RES., CHIP 130k 0.25W 1% 1206 VISHAY, CRCW1206130KFKEA
30 1 R10 RES., CHIP 2k 0.06W 5% 0603 YAGEO, RC0603JR-072KL
31 1 R11 RES., CHIP 590k 0.06W 1% 0603 VISHAY, CRCW0603590KFKEA
32 1 R14 RES., CHIP 100k 0.25W 5% 1206 VISHAY, CRCW1206100KJNEA
33 1 R15 RES., CHIP 32.4k 0.06W 1% 0603 VISHAY, CRCW060332K4FKEA
34 1 R16 RES., CHIP 3.48k 0.06W 1% 0603 YAGEO, RC0603FR-073K48L
35 1 R18 RES., CHIP 40.2k 0.06W 1% 0603 VISHAY, CRCW060340K2FKEA
36 1 R19 RES., CHIP 15k 0.06W 5% 0603 YAGEO, RC0603JR-0715KL
37 1 R20 RES., CHIP 0.1Ω 0.25W 1% 1206 YAGEO, PT1206FR-070R1L
38 1 R22 RES., CHIP 10.7k 0.06W 1% 0603 VISHAY, CRCW060310K7FKEB
39 1 T1 XFMR., 700μH, 10kHz ±10% WURTH ELEKTRONIK, 7508111417
40 1 U1 IC, TRIAC DIMMABLE OFFLINE LED DRIVER LINEAR TECH., LT3799EMSE#PBF
41 1 V1 VARISTOR 320V
RMS
13.5MM RADIAL VISHAY, VDRS10P320BSE
42 1 FAB, 1775A REV 4. PCB DEMO CIRCUIT 1775A
Hardware-For Demo Board Only:
1 4 E1, E2, E4, E5 TURRET, TESTPOINT MILL MAX, 2501-2-00-80-00-00-07-0
2 STENCIL (TOP AND BOTTOM) STENCIL DC1775A
P1-P3P4-P6P7-P8

DC1775A

Mfr. #:
Buy DC1775A
Manufacturer:
Analog Devices Inc.
Description:
LED Lighting Development Tools LT3799 Demo Board - Offline Isolated Fly
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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