Q25W
Q25W is 25-30W DC/DC Converter manufactured by Beta Dyne.
Features
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25-30W DC/DC Converter
2”×1”×0.45”
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
1 2 3 4 beta dyne Q25S12/48
MADE IN USA
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 5m V output noise with external capacitors. Standard features include input undervoltage protection , external synchronization and thermal protection. The converter is packaged in a 1 x 2 x .45’’ metal case with six-sided shielding.
+Vin
4 6 LINEAR REG 1 PWM & SWITCHING TRANSISTOR GND 3 SYNCHRONOUS RECTIFIERS & FILTER 7 8 9 +S +Vout -Vout -S
ON/OFF
SYNC IN
-Vin
ERROR OP-AM
V ADJ
VREF
Typical Block Diagram
BETA DYNE INC
- .BETA-DYNE. Q25 DC/DC CONVERTER
- Q25_DS_Rev A.PDF
- PAGE 1 OF 9
.Data Sheet.in
Unless otherwise specified, all parameters are given under typical ambient temperature of +25°C with an airflow rate = 400LFM. With the given power derating, the operating range is -40°C to +125°C. Specifications subject to change without notice.
Electrical Specifications
INPUT SPECIFICATIONS
Input Voltage Range Input Startup Voltage 24 VIN Input Startup Voltage 48 VIN Overvoltage Shutdown 24 VIN Overvoltage Shutdown Input Filter No Load Input Current Full Load Input Current Input Surge Current (20µS Spike) Short Circuit Current Limit Off State Current Remote ON/OFF Control Supply ON Supply OFF Logic Input...