DC259A - Demo Manual

DC259
DESCRIPTION
Demo Board DC259A provides an isolated 3.3V or
5Vout at 10A from a 36 to 72VDC source. The DC259A’s
small size (2.4in x 2.3in x 0.5in) and industry standard pin-out allows rapid evaluation in new or existing
designs. Gerber files are available upon request. Synchronous output rectifiers result in high-efficiency
(89% typical) operation, eliminating the need for a heat
sink in many applications *. Standard PCB and transformer technology reduces manufacturing cost. Input
under-voltage lockout, remote on/off, output voltage
trim, over-voltage protection and current limit are included.
QUICK START GUIDE
DC259A comes configured for 5V operation. For 3.3V
operation, separate the control and power board by
gently rocking and pulling the boards apart. Locate
JP1 and JP2 which are located on the top side of the
control board (the side facing the bottom of the unit)
near the left edge of the large rectangular hole in the
board. See Figure 1. JP1 and JP2 share a common
resistor pad. Carefully remove the 0 ohm jumper from
the center/JP2 position and install into the center/JP1
position (if the 0 ohm jumper is damaged, replace with
a small section of wire). Next locate and remove JP3
(0 ohm jumper) which is located on the bottom, left
side of the control board near the output
Connect wire jumpers from J6 (+Sense) to J5 (+Vout)
and from J8 (-Sense) to J9 (-Vout). See Figure 2. There
is no minimum load requirement. Connect a DVM and
0-10A variable test load (electronic load box or power
resistors) with series current meter between J5 (+Vout)
and J9 (-Vout). Connect a 36 to 72VDC / 2A power
supply and DVM between J4 (+Vin) and J1 (-Vin). See
SETUP for details. The shut-down circuitry is referenced to the primary. The unit can be shut down by
connecting J3 (ON) to J1 (-Vin).
*Based on 190 lfm airflow, 50C ambient (110C PCB)
temperature. See Thermal Measurements section.
BOARD PHOTO
1
DC259
SETUP
JP3
JP1, JP2
Figure 1. Location of JP1, JP2 and JP3 which select between 5 and 3.3V operation.
3 6 -7 2 V D C POW ER
SUPPLY + +
DVM
A
-
+
A
-
+
-
-
+
+
0 -1 0 A
LOAD
DVM
Figure 2. Test Setup.
Pin Assignments.
2
DC259
PERFORMANCE SUMMARY
Input Voltage
36 to 72VDC
(100Vmax)
Input Current (min)
72Vin, on/off=low
15mA
Input Current
72Vin, 5V/0Aout
50mA typ
Input Current (max)
36Vin, 5V/10Aout
1.6A
36Vin, 5V/12Aout
2A
36Vin, output shorted. Input current = 2Apk, 4ms switching bursts.
<10mAavg
36Vin, 5V/10Aout, start-up
2.2Apk
36Vin, 3.3V/10Aout, start-up
2Apk
Input Ripple
48Vin, 5V/10Aout, source C = 39uF
0.6Ap-p
Conducter Emissions
EN55022, CISPR-A, FCC part 15 (Consult Factory for Emissions Data)
Class A
Output Voltage
Jumper selectable
5V or 3.3V
Trim Range
User selectable (R40)
Start-up Time
36Vin, 5V/10Aout, output voltage up
90ms
Overshoot
Turn-on 72Vin, 5V/0Aout
0%
Turn-on 72Vin, 3.3V/0Aout
10%
Undershoot
Turn-off
none
Output Ripple
48Vin, 5V/10Aout, measured across C16, 20MHz BW
70mVp-p typ
48Vin, 5V/10Aout, measured across C16, 350MHz BW
120mVp-p typ
48Vin, 3.3V/10Aout, measured across C16, 20MHz BW
60mVp-p typ
48Vin, 3.3V/10Aout, measured across C16, 350MHz BW
110mVp-p typ
Input Current (start)
Min Load
Transient Response
0A
48Vin, 5Vout/5 to 10A step
+/-50mV, t = 1ms
48Vin, 3.3Vout/5 to 10A step
+/-30mV, t = 1ms
48Vin, 5V/10Aout
89%
48Vin, 3.3V/10Aout
86%
Operating Temperature
PCB temperature (see Thermal Performance Section)
0 to 110C
Isolation Voltage
Input to output
1500VDC
Input/output to case
1000VDC
Switching Frequency
Fixed, nominal
130KHz
Agency Approval
Designed to meet
EN60950,
UL1950
Efficiency
3
DC259
TYPICAL PERFORMANCE CHARACTERISTICS
50mV/DIV
50mV/DIV
50mV/DIV
50mV/DIV
2us/DIV
Figure 3. 3.3V/10A Output Ripple with 48Vin.
(Top trace = 350MHz BW, bottom trace = 20MHz BW)
50mV/DIV
2us/DIV
Figure 4. 5V/10A Output Ripple with 48Vin.
(Top trace = 350MHz BW, bottom trace = 20MHz BW)
50mV/DIV
1ms/DIV
Figure 5. 3.3V Output Response, 5A to 10A current
step (48Vin).
2ms/DIV
Figure 6. 5V Output Response, 5A to 10A current step
(48Vin).
4
43
46
51
48Vin
72Vin
5V/8A
36Vin
U1 pin 15
(pgnd)
34
35
32
5V/10A
190lfm
48
50
46
5V/10A
w/HS
72Vin
48Vin
36Vin
58
56
46
5V/8A
66
72Vin
L2 between
foil & core
60
73
70
70
5V/10A
83
76
81
5V/10A
52
50
45
5V/10A
190lfm
50
46
47
5V/10A
190lfm
60
55
51
5V/10A
w/HS
62
60
55
5V/10A
w/HS
60
72Vin
63
44
54
58
36Vin
48Vin
72Vin
5V/8A
60
48Vin
72Vin
HS side of
board
behind Q6
59
36Vin
5V/8A
58
Q6
54
48Vin
5V/8A
36Vin
T1 between
wire & core
Temperature Rise above 22C ambient
Board Mounted Horizontally, 4 OZ Cu (2 OZ internal)
(lfm = linear feet per minute, HS = Thermalloy P6515B Heat Sink)
60
54
59
5V/10A
60
48Vin
5V/8A
36Vin
Q3
73
70
74
5V/10A
83
83
81
5V/10A
78
75
78
5V/10A
46
46
46
5V/10A
190lfm
58
56
46
46
45
5V/10A
w/HS
63
60
55
5V/10A
w/HS
5V/10A
190lfm
50
62
63
61
5V/10A
w/HS
50
50
50
5V/10A
190lfm
DC259
THERMAL MEASUREMENTS
5
1
J3
ON
+
3
D23
C26
68uF
20V
R34
100k
1
1
1
Q8
D5
C13
4.7uF
D18
1
R37
12.1k
1%
Q12
2
3
D15
R27
10k
2
3
D11
M M SZ5240BT1
Q10
3
3
2
3
C25
0.1uF
R26
5.36k
1%
1
1
3
D9
D3
M M SZ5246BT1
R21
20.5k
1%
J2
CA SE
R43
3.9k
1
8
3
4
R12
61.9k
1%
R14
62k
R49
62k
R11
1.5K
IN1
V CC1
IN2
GND2
2
7
5
6
C19
2.2uF
GND1
OUT 1
OUT 2
V CC2
U1
LTC1693-1
R10
1.5K
L3
14
13
17
P
RN/S HD
12VI N
R39
4.53k
1%
U3
LT1 339
DO 1608C-105
R24
130 R25
470
R28
1
2
R29
10
27k
D20
D17
3
M M SZ5242BT1
Q7
NDT 410EL
R38
143k
1%
1
R13
47k
1
HEADE R 6
C31
1uF
C27
2.2nF
C28
2.2nF
C29
0.1uF
R8
10
1
R15
47
3
V FB
C30
4700pF
BG
9
16
3
2
3
2
1
D2
M URS 120
Q2
FM M T 718
D4
1
1
D22
BAT54
R41
2.4k
R31
3.3
1
3
D13
BAS21
1
470
D6
M M SZ5242BT1
R16
3
1/2W
Q3
1
IRF1310NS
3
Q4
R9
FM M T 718
0.025
2
1
D1
M URS 120
1
D16
D19
BAS21 BAS21
C14
2.2uF
S Y NC
1
J1
-Vin
5VRE F
2
1
1
2
3
4
5
6
CT
3
2
P13
S L/ ADJ
4
C2
1.5uF
100V
C11
2200pF
250V
IA V G
5
J4
+Vin
VRE F
10
S OCK ET6
8
1
2
2
3
C4
1.5uF
100V
S GND
3
1
C3
1.5uF
100V
15
6
5
4
3
2
1
20
P GND
J13
19
TG
SS
6
V BO OS T
18
TS
11
1
2
C12
0.1uF
P10 -6
P10 -10
P10 -7
P10 -8
C21
0.1uF
JP2
0
JP1
0
D7
BAT54
3
1
J10-12
J10-2
J10-4
J10-5
J10-3
P10 -12
P10 -2
P10 -4
P10 -5
P10 -3
7
S ENSE +
3
1
12
S ENSE VC
4
4
3
J10-6
J10-10
J10-7
J10-8
3
1
2
J10-11
J10-9
J10-1
NC
5
6
7
8
5
6
7
R44
100k
R32
470
IS O1
M OC207
2
1
3
4
C1
2.2nF
250V
1
Q13
C23
0.1uF
2
3
1
D21
M M SZ5231BT1
R23
4.7k
C17
1000pF
R20
4.7k
C15
1000pF
R19
470
C9
1nF
100V
R2
10
R46
1k
R47
100
1
COLL
C22
0.22uF
D14
BAT54
R22
470
D10
BAT54
Q5
SUD30N04
C10
1000pF
100V R7
10
Not e: Unless noted:
Al l caps 25V .
Al l resisto rs 0.1W, 5% .
Al l di odes FMM D914
All NP Ns FMM T 3904TA
All PNPs FMM T 3906TA
10
11
12
7
8
9
T2
Coi ltroni cs
CTX02-14678
5
2
1
4
3
6
T1
Coi ltroni cs
CTX02-14675
4
3
10
4
3
8
P10 -11
P10 -9
P10 -1
Q1
IRF1310NS
1
2
3
1
3
1
J11-1
4
1
3
8
1
Q6
SUD30N04
C6
8
GND1
GND2
R33
1k
OUT 1
IN1
OUT 2
V CC2
U2
LTC1693-1
V CC1
IN2
3
REF
U4
LT1 431
2
7
5
6
R48
100
R45
9.31k
1% JP3
0
R36
3.01k
1%
R30
100
D8
BAS21
3
1
D12
BAS21
1
C34
C8
R42
4.42k
1%
C24
0.01uF R40
T BD
R35
1k
C20
4.7uF
+
C35
+
P9
-Vout
P5
+Vo ut
C16
33uF
10V
J9
-Vout
J8
-Sense
J7
Tri m
J6
+Se nse
J5
+Vo ut
C36
150pF (opti onal )
1kV
L4
DO 1608C-105
+
+
C33
C7
+
+
+
C5
C5 to C8, C33 to C35
330uF, 10V
+
L2
2.4uH
CE PH149-2R4M C
G ND-F
6
R1
2
G ND-S
C18
2200pF
250V
4
RT OP
RMID
5
1
2
4
3
J11-2
J11-4
J11-3
J11-8
P11 -2
P11 -4
P11 -3
P11 -8
7
COMP
P11 -1
3
V+
J11-5
J11-6
J11-7
P11 -5
P11 -6
P11 -7
L1
DO 1608C-472
DC259
SCHEMATIC DIAGRAM
6
DC259
PARTS LIST
REFERENCE
DESIGNATOR
QUANTITY
PART NUMBER
DESCRIPTIONN
VENDOR
TELEPHONE
C36
1/OPT
GRM43X7R151KXKVAL CAP CER X7R 150pF 1kV 20% 1808 OPTION
MuRata
814-237-1431
C9,C10
2
12061C102MAT1A
CAP CER X7R 1000pF 100V 20% 1206
Avx
843-946-0362
C15,C17
2
06035C102MAT1A
CAP CER X7R 1000pF 50V 20% 0603
Avx
843-946-0362
C27,C28
2
06035C222MAT1A
CAP CER X7R 2200pF 50V 20% 0603
C1,C11,C18
3
GHM3035X7R222K-GC CAP CER X7R 2200pF 250V 10%
C30
1
06035C472MAT1A
C24
1
06035C103MAT1A
C21,C25
2
C12,C23,C29
C22
Avx
843-946-0362
MuRata
814-237-1431
CAP CER X7R 4700pF 50V 20% 0603
Avx
843-946-0362
CAP CER X7R 0.01uF 50V 20% 0603
Avx
843-946-0362
12065C104MAT1A
CAP CER X7R 0.1uF 50V 20% 1206
Avx
843-946-0362
3
0603YC104MAT1A
CAP CER X7R 0.1uF 16V 20% 0603
Avx
843-946-0362
1
0603ZC224MAT1A
CAP CER X7R 0.22uF 10V 20% 0603
Avx
843-946-0362
C31
1
TMK316BJ105ML
CAP CER X7R 1uF 16V 20% 1206
Taiyo Yuden
800-348-2496
C2,C3,C4
3
VJ1825Y155MXB
CAP CER X7R 1.5uF 100V 20% 1825
Vitramon
203-268-6261
C14,C19
2
EMK316BJ225ML
CAP CER X5R 2.2uF 16V 20% 1206
Taiyo Yuden
800-348-2496
C13,C20
2
EMK325BJ475MN
CAP CER X5R
C16
1
TAJB336M010R0375
CAP TANT.
4.7uF 16V 20% 1210
33uF
10V 20% 3528
Taiyo Yuden
800-348-2496
Avx
207-282-5111
C26
1
TPSE686M020R0125
CAP TANT 68uF 20V 20% 7343H
Avx
207-282-5111
C5 to C8,
7
T510X3371010AS
CAP TANT 330uF 10V 20% 7343H
Kemet
864-963-6300
D1,D2
2
MURS120T3
DIODE ULTRAFAST 200V 1A SMB
On Semiconductor
800-282-9855
D4,D5,D9,D15,
7
FMMD914
DIODE SWITCHING 70V 0.2A 4ns SOT-23
Zetex
516-543-7100
D3
1
MMSZ5246B-7
DIODE ZENER 16V 0.5W 5% SOD-123
Vishay
408-241-4588
D6,D17
2
MMSZ5242B-7
DIODE ZENER 12V 0.5W 5% SOD-123
Vishay
408-241-4588
D11
1
MMSZ5240B-7
DIODE ZENER 10V 0.5W SOD-123
Vishay
408-241-4588
D21
1
MMSZ5231B-7
DIODE ZENER 5.1V 0.5W SOD-123
Vishay
408-241-4588
D7,D10,D14,D22
4
BAT54TA
DIODE SCHOTTKY 30V 200mA SOT-23
Zetex
516-543-7100
D8,D13,D12,
5
BAS21TA
DIODE SWITCHING 200V 0.2A 50ns SOT-23
Zetex
516-543-7100
ISO1
1
MOC207
OPTOCOUPLER 100-200 2500VRMS SO8
QT Optoelectronics
408-720-1440
L1
1
DO1608C-472
INDUCTOR 4.7uH 20% 0.090ohms 1.5A
Coilcraft
847-639-6400
L2
1
CEPH149-2R4MC
INDUCTOR 2.4uH
Sumida
847-956-0667
L3,L4
2
Coilcraft DO1608C-105 INDUCTOR 1.0mH 20% 13.8ohms 0.1A
Coilcraft
847-639-6400
Q1,Q3
2
IRF1310NS
MOSFET N-CHNL 100V 0.036ohms D2-PAK
IR
310-322-3331
C33 to C35
D18,D20,D23
D16,D19
Q5,Q6
2
SUD30N04-10
MOSFET N-CHNL 40V 0.01ohms D-PAK
Siliconix
800-554-5565
Q7
1
NDT410EL
MOSFET N-CHNL 100V 0.25ohms SOT-223
Fairchild
408-822-2126
Q2,Q4
2
FMMT718TA
TRAN PNP 20V 1.5A HIGH CURR SOT-23
Zetex
516-543-7100
Q8,Q12,Q13
3
FMMT3904TA
TRAN NPN 40V 0.2A GEN PURPOSE SOT-23
Zetex
516-543-7100
Q10
1
FMMT3906TA
TRAN PNP 40V 0.2A GEN PURPOSE SOT-23
Zetex
516-543-7100
R9
1
WSL 2110 0.025 1%
RES CHIP 2110 0.025 1% 1/2W 2110
Dale
605-665-9301
R10,R11
2
CR18-152JM
RES CHIP 1206
Tad
714-255-9123
1.5k 5% 1/8W
7
DC259
PARTS LIST
R36
1
CR16-3011FM
RES CHIP 0603 3.01k 1%
Tad
800-508-1521
R42
1
CR16-4421FM
RES CHIP 0603 4.42k 1%
Tad
800-508-1521
R39
1
CR16-4531FM
RES CHIP 0603 4.53k 1%
Tad
800-508-1521
R26
1
CR16-5361FM
RES CHIP 0603 5.36k 1%
Tad
800-508-1521
R45
1
CR16-9311FM
RES CHIP 0603 9.31k 1%
Tad
800-508-1521
R37
1
CR16-1212FM
RES CHIP 0603 12.1k 1%
Tad
800-508-1521
R21
1
CR16-2052FM
RES CHIP 0603 20.5k 1%
Tad
800-508-1521
R12
1
CR10-5622FM
RES CHIP 0805 56.2k 1%
Tad
800-508-1521
R38
1
CR16-1433FM
RES CHIP 0603
143k 1%
Tad
800-508-1521
R31
1
CR16-3R3JM
RES CHIP 0603
3.3
5%
Tad
800-508-1521
R1,R8,R28
3
CR16-100JM
RES CHIP 0603
10
5%
Tad
800-508-1521
R2,R7
2
CR18-100JM
RES CHIP 1206
10
5%
Tad
800-508-1521
R15
1
CR10-470JM
RES CHIP 0805
47
5%
Tad
800-508-1521
R47
1
CR16-101JM
RES CHIP 0603
100
5%
Tad
800-508-1521
R48,R30
2
CR18-101JM
RES CHIP 1206
100
5%
Tad
800-508-1521
R24
1
CR10-131JM
RES CHIP 0805
130
5%
Tad
800-508-1521
R16,R19,R22,
5
CR16-471JM
RES CHIP 0603
470
5%
Tad
800-508-1521
R33,R35,R46
3
CR16-102JM
RES CHIP 0603
1k 5%
Tad
800-508-1521
R41
1
CR16-242JM
RES CHIP 0603
2.4k 5%
Tad
800-508-1521
R43
1
CR16-392JM
RES CHIP 0603
3.9k 5%
Tad
800-508-1521
R20,R23
2
CR16-472JM
RES CHIP 0603
4.7k 5%
Tad
800-508-1521
R27
1
CR16-103JM
RES CHIP 0603
10k 5%
Tad
800-508-1521
R29
1
CR18-273JM
RES CHIP 1206
27k 5%
Tad
800-508-1521
R25,R32
R13
1
CR16-473JM
RES CHIP 0603
47k 5%
Tad
800-508-1521
R14,R49
2
CR18-623JM
RES CHIP 1206
62k 5%
Tad
800-508-1521
R34,R44
2
CR16-104JM
RES CHIP 0603 100k 5%
Tad
800-508-1521
R40
0
RES TBD
RES CHIP 0603
Tad
800-508-1521
JP1,JP2,JP3
3
CR10-000M
RES CHIP 0805 0ohm 5%
Tad
800-508-1521
T1
1
CTX02-14675
TRANSFORMER CTX02-14675
Coiltronics
561-241-7876
T2
1
CTX02-14678
TRANSFORMER CTX02-14678
Coiltronics
561-241-7876
J5,J9
2
1640B
RECEPTACLE 0.078-0.081
Keystone
718-956-8900
J1,J2,J3,J4,
7
1425-2
PIN 0.04 PC PIN
Keystone
718-956-8900
J6,J7,J8
P5,P9
2
1213-680-6
PIN 0.08 X 0.68 high pin
Zierick
800-882-8020
J10
1
SMM-106-02-F-D
SOCKET 12PINS DOUBLE ROW SMT
Samtec
800-726-8329
J11
1
SMM-104-02-F-D
SOCKET 8PINS DOUBLE ROW SMT
Samtec
800-726-8329
J13
1
SMM-106-02-F-S
SOCKET 6 PINS SURFACE MOUNT
Samtec
800-726-8329
P10
1
HTSM2205-12-G2
HEADER 12PINS SURFACE MOUNT
Comm-Con
626-301-4200
P11
1
HTSM2205-08-G2
HEADER 8PINS SURFACE MOUNT
Comm-Con
626-301-4200
P13
1
HTSM2805-06-G2
HEADER 6 PINS SURFACE MOUNT
Comm-Con
626-301-4200
4
1636-440-A-0
STANDOFF 3/16 ROUND 4-40 X 7/16
RAF
203-888-2133
8
DC259
PARTS LIST
1
P6515B
HEATSINK P6515B
Thermalloy
972-243-4321
U1,U2
2
LT1693-1B
IC LTC1693-1 8-LEAD SO8
Linear
408-432-1900
U3
1
LT1339CSW
IC LT1339CSW 20-LEAD SOL-20
Linear
408-432-1900
U4
1
LT1431CS8
IC LT1431CS8 8-LEAD SO8
Linear
408-432-1900
1
DEMO BOARD DC259A
PRINTED CIRCUIT BOARD
Linear
408-432-1900
STENCIL
Linear
408-432-1900
2
PCB LAYOUT AND FILM
9
DC259
PCB LAYOUT AND FILM
10
DC259
PCB LAYOUT AND FILM
11
DC259
PCB LAYOUT AND FILM
12
DC259
PCB FAB DRAWING
13
Similar pages