Summary

The Texas Instruments TL7700-SEP is a bipolar integrated circuit designed to be used as a reset controller in microprocessor and microcomputer systems.

It features a highly stable circuit function with a 1.8-40 V supply voltage and a SENSE voltage that can be set to any value greater than 0.5 V using 2 external resistors.

The system has a minimum supply current that allows portable battery operation and may be used with AC line operation.

The TL7700-SEP device is also designed to operate effectively in the temperature range –55°C to 125°C.

Applications

Low Earth orbit (LEO) space applications
Power supervisor for satellites
Supervise DPS, MCUs, FPGAs, and ASICs

Orderable Part Numbers

Key features

VID V62/19602
Radiation hardened
- Single event latch-up (SEL) immune to 43 MeV-cm²/mg at 125°C
- Total ionizing dose (TID) RLAT for every wafer lot up to 20 krad(Si)
Space enhanced plastic
- Controlled baseline
- Gold wire
- NiPdAu lead finish
- One assembly and test site
- One fabrication site
- Available in military (–55°C to 125°C) temperature range
- Extended product life cycle
- Extended product-change notification
- Product traceability
- Enhanced mold compound for low outgassing
Adjustable sense voltage with two external resistors
1% sense voltage tolerance (25°C)
Adjustable hysteresis of sense voltage
Wide operating supply-voltage range: 1.8 V to 40 V
Low power consumption: I_CC =0.6 mA typical, V_CC =40 V

Testing & qualification

Below are the technical documentations available for this product:

Radiation & reliability report

Application note

Reduce the risk in NewSpace with Space Enhanced Plastic products

Selection guide

TI Space Products (Rev. H)

Technical article

Space Enhanced Plastic gives designers a new solution for emerging low-Earth orbit commercial applications

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Last updated: 2021-12-21