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PDF ML1000605D Data sheet ( Hoja de datos )
| Número de pieza | ML1000605D | |
| Descripción | HIGH RELIABILITY RADIATION HARDENED LOW POWER DC-DC CONVERTER | |
| Fabricantes | IRF | |
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HIGH RELIABILITY
RADIATION HARDENED
LOW POWER
DC-DC CONVERTER
PD-97806
ML1000605D
100V Input, Dual Output
Description
The ML-Series of isolated DC-DC converters for space
applications are low power radiation hardened high
reliability devices designed for hostile radiation
environments such as those encountered by geostationary
earth orbit satellites, deep space probes and communication
systems. Features include small size, high efficiency,
low weight, and a good tolerance to total ionizing dose,
single event effects, and environmental stresses such
as temperature extremes, mechanical shock, and
vibration. All components are fully derated to meet the
requirements of EEE-INST-002 (NASA) and ECSS-Q-
30-11A (ESA). Extensive documentation including worst
case analysis, radiation susceptibility, thermal analysis,
stress analysis, and reliability analysis are available.
The ML-Series converter has two outputs – one positive
and one negative - each is independently regulated via
linear post regulators. The outputs are sequenced
during turn-on and turn-off such that negative output
comes up first at turn-on and stays up at turn-off until the
positive output has decreased. The ML-series converters
incorporate a fixed frequency flyback power converter
and internal EMI filter that meets the requirements for
most major satellite power buses. The converter includes
isolated On/Off telecommand with associated status
telemetry. The converter also includes input under
voltage shut-down functionality.
Due to the linear post regulation of the outputs, the ML-
Series is well suited for use in RF-applications where
low noise, high output voltage accuracy, and high CS
attenuation is required.
Each converter is provided as a complete board
assembly for installation into the host equipment chassis.
The board is conformal coated (except for mating
surfaces) and is mounted in the host chassis using
screws. The board outline is L x W x H: 70mm x 50mm x
18mm. The weight is less than 50 grams.
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Features
n Total Dose > 100 krad(Si)
n SEE > 82 MeV.cm2/mg
n Low Weight < 50 grams
n 97V to 103V DC Input Range
n O/P 1: +6.0V (up to 500mA)
n O/P 2: -5.0V (up to 100mA)
n Output Ripple: < 1mVrms (100Hz - 50MHz)
n CS Rejection Input to Outputs: > 90dB
(50Hz - 1.0MHz)
n 10MΩ @ 100VDC Isolation
n Input Under-Voltage Protection
n Meets Conducted Emission Requirements of
Major Power Buses:
100Hz - 100kHz: 80dBuArms
100kHz - 10MHz: -20dB/decade
10MHz - 50MHz: 40dBuArms
n Short Circuit and Overload Protection
n Meets Derating Requirements of EEE-INST
002 and ECSS-Q-30-11A
n Isolated On/Off Control via High Level Pulse
Command (Latching Relay)
n Status Telemetry (Relay Contact Type)
n Workmanship Per IPC-A610 Class 3
n Board is Coated with ARATHANE-5750
Applications
n Low Power RF Systems (like LNA) on-board
Satellites
Non-flight versions of the ML-Series converters
are available for system development purposes.
Variations in electrical specifications and
screening to meet custom requirements can be
accommodated.
1
04/22/13
http://www.Datasheet4U.com
1 page  
ML1000605D
(100V Input, Dual Output)
Electrical Performance Characteristics (continued)
Parameter
Condition
Conditions
-40°C ≤ Tc ≤ +75°C
VIN = 100V DC ± 0.5%, CL = 0µF
unless otherwise specified
EMC conducted
susceptibility
(Line rejection)
IOUT = 100% rated load
1 Primary power sine wave injection of
2Vp-p, 100Hz to 1MHz, Note 1
Electromagnetic Interference
(EMI), conducted emission
(CE)
Isolation
1
1
Device Weight
IOUT = 100% rated load, Notes 1, 7
Input to Output, any potential to
telecommand input and any potential to
telemetry output, test @ 100VDC
Failure Rate
MIL-HDBK-217F2, SF, 35°C, Note 8
Limits
Min Nom Max
Unit
96 110
dB
Limits per Figures 4 and 5
10 MΩ
50 g
60 FITs
Notes: Specification and Electrical Performance Characteristics Tables
1. Parameter is tested as part of design characterization or after design changes. Thereafter, parameter shall
be guaranteed to the limits specified.
2. Guaranteed for a D.C. to 50MHz bandwidth. Tested using a 10.7MHz bandwidth.
3. Load current step transition time ≥ 10 µs.
4. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of
its steady state value.
5. Turn-on delay time from application of telecommand pulse to the point where Output 2 = 98% of nominal
output voltage.
6. Capacitive load may be any value from 0 to the maximum limit without compromising the output sequencing
performance. A capacitive load in excess of the maximum limit may influence the output sequencing
performance and start-up time, converter operation and dc performance will remain intact.
7. The switching frequency and 1st and 2nd harmonic of the input ripple is tested on every unit.
8. MIL-HDBK-217F2 stress-dependent method is used with 2 exceptions: For soldering a fixed failure rate at
0.035FIT is used and for power MOSFETs the dissipated power (instead of rated power) is used for the Pr
parameter. 1 FIT is 1 failure in 109 hours.
9. The converter meets full derating per EEE-INST-002 and ECSS-Q-30-11A with the following exception: For
Schottky diode JANS1N5819 a maximum derated junction temperature of +110°C. For EEE-INST-002 it is
required that ceramic capacitors with a voltage stress below 10V shall be rated for minimum 100V - in the
product such capacitors is rated for 50V minimum.
10. Although operation temperatures between -55°C to +100°C and -40°C to+75°C is guaranteed, no
parameter limits are specified.
Electrical Performance Characteristics - Definition of Conditions
Condition Definition
Comment
1 BOL @ +25°C interface temperature
Initial setting
2 BOL @ -40°C to +75°C interface temperature Initial setting and worst case temperature variation
3 EOL @ -40°C to +75°C interface temperature Worst case performance including initial setting,
temperature variation, aging and radiation degradation
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5
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5 Page 
Fig 3 - TM / TC Interface:
J1
TC On return
13
TC On
TC Off
6
7
14
TC Off return
Status TM
8
15
Status TM Return
ML1000605D
(100V Input, Dual Output)
R201
R202
CR201 CR202
CR203 CR204
CR205
CR206
CR207
K1
4 ON
9 OFF
5
10
CR208
Relay is shown ON
CR213 CR214
R203
8
3
From Primary
AUX.
C103
7
6
1
2
From Input Filter
R218
R219
R220
R223
U101
VC PWM
VR101
Component
CR201
CR202
CR203
CR204
CR205
CR206
CR207
CR208
CR213
CR204
C103
K201
R118
R119
R120
R123
R201
R202
VR101
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Component Type
1N6640US
1N6640US
1N6640US
1N6640US
1N6640US
1N6640US
1N6640US
1N6640US
1N6640US
1N6640US
CWR29
J422-26M SHOC
RM1206B
RM1206B
RM1206B
RM1206B
RM1206B
RM1206B
1N4109UR-1
Package
D-5D
D-5D
D-5D
D-5D
D-5D
D-5D
D-5D
D-5D
D-5D
D-5D
SMD H
TO-5
SMD 1206
SMD 1206
SMD 1206
SMD 1206
SMD 1206
SMD 1206
DO-213AA
Value
0.3A
0.3A
0.3A
0.3A
0.3A
0.3A
0.3A
0.3A
0.3A
0.3A
33µF
21.5kohms
21.5kohms
21.5kohms
21.5kohms
215ohms
215ohms
Voltage (V)
75
75
75
75
75
75
75
75
75
75
25
26.5
100
100
100
100
100
100
15
11
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