MQHL-28-05S Datasheet, PDF (4/17 Pages) SynQor Worldwide Headquarters – HIGH RELIABILITY DC-DC CONVERTER

Technical Specification
MQHL-28-05S
Output: 5 V
Current: 10 A
MQHL-28-05S ELECTRICAL CHARACTERISTICS (Continued)
Parameter
ISOLATION CHARACTERISTICS
Min. Typ. Max. Units Notes & Conditions
Vin=28 V dc ±5%, Iout=10.0 A, CL=0 µF, free running (see Note 9)
unless otherwise specified
Group A
Subgroup
(see Note 12)
Isolation Voltage
Dielectric strength
Input RTN to Output RTN
500
V
1
Any Input Pin to Case
500
V
1
Any Output Pin to Case
500
V
1
Isolation Resistance (in rtn to out rtn)
100
MΩ
1
Isolation Resistance (any pin to case)
100
MΩ
1
Isolation Capacitance (in rtn to out rtn)
22
nF
1
FEATURE CHARACTERISTICS
Switching Frequency (free running)
500 550 600 kHz
1, 2, 3
Synchronization Input
Frequency Range
500
700 kHz
1, 2, 3
Logic Level High
2.0
5.5
V
1, 2, 3
Logic Level Low
-0.5
0.8
V
1, 2, 3
Duty Cycle
20
80
%
See Note 5
Synchronization Output
Pull Down Current
20
mA VSYNC OUT = 0.8 V
See Note 5
Duty Cycle
40
60
% Output connected to SYNC IN of other MQFL unit
See Note 5
Enable Control (ENA)
Off-State Voltage
0.8
V
1, 2, 3
Module Off Pulldown Current
80
µA Current drain required to ensure module is off
See Note 5
On-State Voltage
2
V
1, 2, 3
Module On Pin Leakage Current
20
µA Imax draw from pin allowed with module still on
See Note 5
Pull-Up Voltage
3.2 4.0 4.8
V See Figure A
1, 2, 3
RELIABILITY CHARACTERISTICS
Calculated MTBF (MIL-STD-217F2)
GB @ Tcase = 70ºC
AIF @ Tcase = 70ºC
Demonstrated MTBF
2800
440
TBD
103 Hrs.
103 Hrs.
103 Hrs.
WEIGHT CHARACTERISTICS
Device Weight
50
g
Electrical Characteristics Notes
1. Converter will undergo input over-voltage shutdown.
2. Derate output power to 50% of rated power at Tcase = 135º C.
3. High or low state of input voltage must persist for about 200µs to be acted on by the lockout or shutdown circuitry.
4. Current limit inception is defined as the point where the output voltage has dropped to 90% of its nominal value.
5. Parameter not tested but guaranteed to the limit specified.
6. Load current transition time ≥ 10 µs.
7. Line voltage transition time ≥ 100 µs.
8. Input voltage rise time ≤ 250 µs.
9. Operating the converter at a synchronization frequency above the free running frequency will slightly reduce the converter’s efficiency and
may also cause a slight reduction in the maximum output current/power available. For more information consult the factory.
10. After a disable or fault event, module is inhibited from restarting for 180 ms. See Shut Down section.
11. The module will attempt to start into an overload for 20ms before shutting down and waiting to Auto Retry.
12. Only the ES and HB grade products are tested at three temperatures. The C grade products are tested at one temperature.
Please refer to the ESS table for details.
13. These derating curves apply for the ES- and HB- grade products. The C- grade product has a maximum case temperature of 100º C and
a maximum junction temperature rise of 20º C above Tcase.
Product # MQHL-28-05S
Phone [phone]
www.synqor.com
Doc.# 005-2MQHLS Rev. 1
05/27/09
Page 4