DAK-21A Power Integrations, DAK-21A Datasheet - Page 6

• Manufacturer Part Number: DAK-21A
• Description: KIT DESIGN ACCELERATOR DPA SW
• Manufacturer: Power Integrations
• Series: DPA-Switch®r

Specifications of DAK-21A

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Isolated
• Voltage - Output: 5V
• Current - Output: 6A
• Voltage - Input: 36 ~ 72V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: DPA423, DPA424, DPA425, DPA426
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Design Examples
Cost-Effective 6.6 W, 3.3 V Flyback DC-DC Converter (EP-86)
15 W Multi-Output DC-DC Converter (DI-69)
6 DC-DC Product Selector Guide | September 2008
36 - 57 VDC
J1-1
J1-2
+V
100 V
-V
1 μF
C1
IN
IN
36-75 VDC
Voltage
RTN
J1-2
J1-1
Input
+
DC
100 V
1 μF
C1
47 pF
200 V
1 MΩ
1%
C2
R1
1 μH 2.5 A
SMAJ
150A
VR1
L1
619 kΩ
D
S
1%
R2
619 kΩ
100 V
SMBJ
1 μF
1%
VR1
R1
150
C2
CONTROL
Visit www.powerint.com/appcircuits.htm for additional design examples.
X
L
1
3
2
1
8.66 kΩ
3
F
4
D
S
1%
DPA-Switch
R3
T1
C
DPA423G
T1
CONTROL
U1
9, 10
6, 7
X
5
4
5
8
7
6
L
0.1 μF
50 V
C3
DPA-Switch
F
13.3 kΩ
DPA424P
10 Ω
2.2 nF
R21
C21
1%
R2
100 Ω
220 nF
10 Ω
C
R22
U1
R5
C4
Si4804
SL43
Si4804
Q21
D2
Q22
5.1 Ω
22 μF
10 V
R4
C4
10 kΩ
R23
BAV19, SOD323
20CJQ060
330 μF
VR21
6 V
C5
D31
PC357N1T
D3
SL13
15 V
D21
U2
50 V
1 μF
1.0 Ω
C8
47 μF
10 V
R3
C5
0.33 μF
4
7
8
7
C10
330 μF
BAV19WS
16 μH 4 A
6 V
C6
19WS
4.7 μF
BAV
D41
20 V
D6
L2
C6
PC357
U2
3
6
5
2
CAT431L,
51 Ω
10 kΩ
SOT23
R11
BAV19WS
LM431AIM3
R6
2.2 μF
10 V
C11
U3
VR31
4.7 μF, 35 V
6.8 V
D11
U3
100 μF 5 V
U2
150 Ω
C22-C24
R12
1 μH, 2A
C41
L1
IN4148
100 μF
D32
10 V
C31
330 μF
68 nF
6 V
C13
C7
1 kΩ
0.1 μF
R7
100 nF
C11
11 Ω
R13
C12
160 Ω
PI-3799-082404
34 kΩ
20 kΩ
R4
10.0 kΩ
1%
1%
R8
R9
10.0 kΩ
1 kΩ
R14
R15
1%
R16
1%
10 V
1 μF
C25
PI-3806-061704
1 μF
10 V
C9
20 V, 10 mA
7.5 V, 0.4 A
5 V, 2.4 A
J2-3
J2-4
J2-2
RTN
J2-1
3.3 V, 2 A
J2-1
RTN
J2-2