Texas Instruments: Space Enhanced Plastic (SEP) Products

Space Enhanced Plastic Products (SEP) devices are a cost-effective radiation-tolerant solution developed by TI to address, among others, shorter duration high volume small satellites and New Space applications, offering the following advantages over standard catalogue products:

• QMLV like flow:
  • Wafer lot acceptance using MIL-PRF-38535 QML Class V as a baseline.
  • A controlled baseline is used with one wafer fab, one assembly site, and one material set.
  • Traceability
• Robust material set:
  • Optimized material set with die-attach, mould compound, lead frame, and bond wire all selected to maximize reliability.
  • No high tin (>97% Sn) construction, including terminations (SnAgCu solder balls and Matte-Sn plating) or internal package components (die bumps or substrate plating).
  • No copper bond wire. Product is either flip-chip mounted (no bond wire) or uses gold bond wire.
• Enhanced products reliability and qualification (HAST, extended Temp, meets MIL-PRF-38535 Class N
• Additional assembly processing including 100% temperature cycle or 100% single-pass reflow simulation in lieu of temperature cycle.
• Characterization over the target temperature range (-55°C to +125°C).
• Parametric testing is standard at both room and high temperatures with guardband’s to assure datasheet limits at cold temperatures.
• Wafer lot acceptance using MIL-PRF-38535 QML Class V as a baseline.
• Outgassing qualification for each product per ASTM E-595.
• Qualification to SMC-SO-11.
• Assembly lot acceptance including x-ray sampling and CSAM sampling.

Characterization for total dose and single event radiation performance:

• Single characterization up to 30krad (ELDRS free)
• Radiation Lot Acceptance Testing (Group E) to 20krad TID for each wafer lot per MIL-STD-883
• SEL Characterization to 43 MeV-c m2/mg.

Space Enhanced Plastic Products (SEP) produced by Texas Instruments, so far, are:

INA240-SEP                                                     80-V, low-/high-side, zero-drift, current sense amp w/ enhanced PWM rejection

SN55HVD233-SEP:                                        3.3-V CAN transceiver

SN65C1168E-SEP                                            Dual differential drivers and receivers with ± 8-kV IEC ESD protection

TL7700-SEP                                                     Supply-voltage supervisor

TLV1704-SEP                                                   2.2-V to 36-V, micro Power quad comparator

TPS73801-SEP                                                   1-A low-noise fast-transient-response LDO