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參數(shù)資料
| 型號(hào)： | MQO28512Q |
| 廠商： | CRANE ELECTRONICS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 中文描述： | 4-OUTPUT 16 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | 3.200 X 2.600 INCH, 0.460 INCH HEIGHT, HERMETIC SEALED PACKAGE-13 |
| 文件頁(yè)數(shù)： | 1/7頁(yè) |
| 文件大?。?/td> | 83K |
| 代理商： | MQO28512Q |
MODELS
VDC O
UTPUT
B2-53
Size (max.): 3.200 x 2.600 x 0.460 inches (81.28 x 66.04 x 11.68 mm)
See Section B8, case N, for dimensions.
Weight:
120 grams typical
Screening: Standard or ES. See Section C2 for screening options,
see Section A5 for ordering information.
F
EATURES
–55°C to +125° C operation
16 TO 40 VDC input
Four fully regulated outputs
Internal EMI filter meets
MIL-STD-461C CE03
Active transient suppressor
Built in hold-up function with flag
Fully isolated
Magnetic feedback
Fixed frequency, 550 kHz typical
Topology – Single Ended Forward
Inhibit function
Indefinite short circuit protection
Undervoltage lockout
QUAD
±5 and ±12
±5 and ±15
DESCRIPTION
The MQO Series of DC/DC converters supply up to 16.5 watts in
a four output configuration of ±5 and ±12 or ±5 and ±15 VDC. An
integral EMI filter and transient suppressor allow the converters to
meet MIL-STD-461C standards without external components. An
output hold-up feature provides a low power flag and full output
power hold-up through transient dropout conditions.
The MQO Series converters are packaged in hermetically sealed
cases and are rated for full power operation from –55° to +125° C
case temperature. This makes these units ideal for military, aero-
space, and hi-rel industrial applications.
A high gain bandwidth magnetically isolated control loop is used to
precisely regulate the +5 VDC output. Constant frequency pulse
width with a single ended forward topology is used. The –5 VDC
output and the auxiliary outputs are independently controlled with
low headroom regulators, eliminating cross regulation errors. The
use of feedforward, compensation, and a high gain bandwidth
control loop provides excellent rejection to the conducted audio
spectrum of MIL-STD-704A-D and MIL-STD-461C.
I
NTEGRAL
EMI F
ILTER
The MQO Series includes a a built-in EMI filter and transient
suppressor which allow the units to meet the most common military
standards without any external components. The internal EMI filter
provides both differential and common mode attenuation on the
input power lines to allow meeting the CE03 interference and CS02
susceptibility requirements. The active internal transient suppressor
provides protection against MIL-STD-704A, 1275, and 461C line
transients. Protection is provided for transients up to 400 V from a
0.5 ohm source and 600 V from a 50 ohm source.
B
UILT
-I
N
H
OLD
-U
P
F
UNCTION WITH
F
LAG
An output hold-up feature provides a low power flag and full output
power hold-up through transient drop out conditions. At full load for
a Vin step from 28 to 0 volts, the minimum hold-up time will be 50
μs. The low power flag (TTL high) is asserted 10 μs before the end
of the hold-up time. External capacitance can be added to extend
hold-up time.
S
HORT
C
IRCUIT
P
ROTECTION
MQO Series converters provide predictable current limiters which
directly sense output load current in the converter’s secondary.
During short circuit or overload conditions, the current limiters
provide constant output current and an input power fold-back.
U
NDERVOLTAGE
L
OCKOUT
Undervoltage lockout prevents the converters from operating below
approximately 12 VDC input voltage which helps keep system
current levels smooth, especially during initialization or re-start oper-
ations.
DC/DC C
ONVERTERS
28 V
OLT
I
NPUT
MQO SERIES
16 WATT
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