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PDF Q25W Data sheet ( Hoja de datos )
| Número de pieza | Q25W | |
| Descripción | 25-30W DC/DC Converter | |
| Fabricantes | Beta Dyne | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de Q25W (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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bdeytnae
Key Features
• Efficiency up to 87%
• Low output noise
• Six-sided shielding
• Output synchronous rectification
• Input-to-output isolation
• Soft start
• External synchronization
• Short circuit protection
• Thermal protection
• Industry standard pinout
Q25W
25-30W DC/DC Converter
2”×1”×0.45”
1 bdeytnae
2 Q25S12/48
3
MADE IN USA
4
9
8
7
6
5
Beta Dyne is protected under various patents, including but not limited to U.S. Patent numbers: 5,777,519; 6,188,276; 6,262,901; 6,452,818; 6,473,3171.
Functional Description
The Q25 series is a 25-30W low noise isolated converter, consisting of 14 standard single & dual output models
from 3.3VDC to 15 VDC and 4:1 input voltage range from 9V to 72V. Output synchronous rectification followed
by a very low dropout linear regulator made possible to achieve up to 87% efficiency and less than 5mV output
noise with external capacitors. Standard features include input undervoltage protection , external synchroniza-
tion and thermal protection. The converter is packaged in a 1 x 2 x .45’’ metal case with six-sided shielding.
+Vin
4
ON/OFF
SYNC IN
-Vin
1
2
3
PWM &
SWITCHING
TRANSISTOR
GND
SYNCHRONOUS
RECTIFIERS
&
FILTER
LINEAR
REG
ERROR
OP-AM
VREF
6 +S
7 +Vout
8 -Vout
9 -S
5 V ADJ
BETA DYNE INC • WWW.BETA-DYNE.COM
www.DataSheet.in
Typical Block Diagram
Q25 DC/DC CONVERTER • Q25_DS_RevA.PDF • PAGE 1 OF 9
1 page  
+
Vin
-
5V
1K
5V ON
0V
OFF
L1
C3
C4
4 +VIN
+Vout 7
3
1
Q25D15/24
-VIN
ON/OFF
Com
8
C6
C5
2 SYNC
-Vo
V ADJ
9
5
CMC*
10K
+Vout
C7
Common
C8
-Vout
FIGURE 4. Typical connection diagram for Q25D15/24.
Part list for Figure 4:
L1= 2.2µH
C3= 50µF@100V Electrolytic
C4=50µF@100V Electrolytic
C5,C6=47µF@20V Low ESR Tantalum
C7,C8=2.2µF@25V Ceramic Capacitor
CMC*=Common Mode Capacitor
CMC= .01µF@Vcmc
Vcmc >= than required isolation, voltage can be up to
FIGURE 5:
FIGURE 5: Output ripple of Q25D15/24 on +Vout as
shown in Figure 4.
FIGURE 6:
FIGURE 6: Output ripple of Q25D15/24 on +Vout with another
external cap of Nippon Chemi-Con 180µF@16V on
the +Vout. The part number is 16PS180MH11.
BETA DYNE INC • WWW.BETA-DYNE.COM
www.DataSheet.in
Q25 DC/DC CONVERTER • Q25_DS_RevA.PDF • PAGE 5 OF 9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet Q25W.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| Q25D12-24 | 25-30W DC/DC Converter | Beta Dyne |
| Q25D12-48 | 25-30W DC/DC Converter | Beta Dyne |
| Q25D15-24 | 25-30W DC/DC Converter | Beta Dyne |
| Q25D15-48 | 25-30W DC/DC Converter | Beta Dyne |
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