Integrated Electronics Module (IEM)
Tiger Innovations, Inc.
Modular, radiation-hardened spacecraft avionics suite combining C&DH and EPS functions, with flight heritage on STPSat-1.
Typed specifications43 values
Discloses 9 of 14 fields engineers filter by in this category (category median 7).
- Mass
- 5 180 g total of card mass breakdown, base model · datasheet p.4 5 250 g max | 5 250 g max · base model, < 5.25 kg
- Total output power
- 24.08 W nominal · datasheet p.4
- Envelope (L×W×H)
- 7” x 7.125” x 4.437” datasheet p.1 7" x 7.125" x 4.437" size, base model
- Outputs (as printed)
- +3.3V, ±5V, ±15V datasheet p.1 +3.3V, ±5V, ±15V voltage regulation, base model
- Supply voltage
- 28 V datasheet p.1
- Power consumption
- 24 W nominal · datasheet p.1 24 W power consumption, base model | 24.08 W total of card breakdown: RAD750 running, static bus loads at … | 24.08 W total, nominal | 24 W nom.
- Data interface
- RS-422 datasheet p.1 RS-422 12 RS-422 pairs, base model
- Radiation tolerance (TID)
- 100 krad datasheet p.1 100 krad radiation hardened part selection
- Unit type
- other Integrated Electronics Module: performs C&DH and EPS functions · datasheet p.1
- Board format
- custom 3U Compact PCI (cPCI) form factor · datasheet p.2
- Bus and outputs type
- hybrid (regulated rails + battery bus) switched bus voltage load switches plus regulated voltages fr… · datasheet p.3
- Unregulated (battery) bus voltage
- 28 V bus voltage 28 +/-6 Volts · datasheet p.1
- Regulated output voltages
- 3.3 V nom. · regulated output of SAI/VR card · datasheet p.3 3.3 V | 5 V | 5 V nom. · regulated output of SAI/VR card | 15 V +4
- Switchable outputs
- 184 max configuration · datasheet p.2 184 maximum configuration, up to 4 switched power cards | 46 power switches, base model configuration | 42 power switches, base model specification table
- Solar array inputs
- 14 SAI/VR card accepts fourteen solar inputs: 10 switched, 4 un-… · datasheet p.3
- Solar array regulation
- other maximum bus voltage regulation via solar panel switching; opt… · datasheet p.3
- Protections
- latch-up (SEL) SEL immune · datasheet p.1
- Flight heritage
- STPSat-1 datasheet p.1
- Satellite class
- microsat 10-100 kg low mass and power for Micro-Sat missions · datasheet p.1
- Max current per output
- 30 A max · power switches from < 1 amp to 30 amps · datasheet p.1
- Battery voltage range accepted
- 28 V ±6 V datasheet p.3
- Max solar input current
- 5 A max · per solar input, maximum continuous current · datasheet p.3
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier18 lines, in the manufacturer's own wording
- Power consumption
- 24 Watts
- Mass
- < 5.25 kg
- Dimensions
- 7" x 7.125" x 4.437"
- Processor
- RAD-750
- Analog signals
- 56
- Digital i/o
- 64 Discrete I/O, 12 RS-422 pairs
- Communication ports
- Up to 12 full duplex serial ports
- Power switches
- 42 (from < 1 amp to 30 amps)
- Arming switches
- 4 x 6 amp switches w/ARM
- Solar array switches
- 10 x 5 amp switched inputs, 4 x 5 amp unswitched inputs
- Supply voltage
- 28 +/-6 Volts
- Voltage regulation
- +3.3 V, +/-5 V, +/-15 V
- Radiation tolerance
- 100 kRad, SEL immune
- Flight heritage
- STPSat-1 (launched March 2007)
- Max configuration - analog inputs
- Up to 336
- Max configuration - discrete i/o
- Up to 384
- Max configuration - RS-422 pairs
- Up to 72
- Max configuration - power switches
- Up to 184
About
Tiger Innovations’ Integrated Electronics Module (IEM) is a complete spacecraft avionics solution encompassing both Command and Data Handling (C&DH) and Electrical Power System (EPS) functions. The IEM consists of multiple circuit cards housing the central processor, analog and digital telemetry processing, payload interface, power management, power switching, solar array control, and voltage regulation functions, implemented in a 3U Compact PCI form factor. The base model IEM has one card dedicated to each function, but its modular design allows additional cards to be added with no new engineering work to meet a wide range of mission requirements. A maximum configuration supports up to 4 switched power cards and 8 additional cPCI cards, providing up to 336 analog inputs, 384 discrete I/O, 72 RS-422 pairs, and 184 power switches. The IEM was first developed for the STPSat-1 spacecraft (launched March 2007) and remains flight-proven, with design improvements incorporating lessons learned to increase capability and performance for subsequent missions.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.