The TPSI2072-Q1 is a two channel isolated solid state relay designed for high voltage automotive and industrial applications. The TPSI2072-Q1 uses TI’s high reliability capacitive isolation technology in combination with internal back-to-back MOSFETs to form a completely integrated solution requiring no secondary side power supply. The TPSI2072-Q1 improves system reliability as TI’s capacitive isolation technology does not suffer from mechanical wearout or photo degradation failure modes common in mechanical relay and photo relay components.
The primary side of the device is powered by only 9 mA of input current and incorporates fail-safe EN1 and EN2 pins preventing any possibility of back powering the VDD supply. In most applications, the VDD pin of the device should be connected to a system supply between 4.5 V–20 V and the EN1 and EN2 pins of the device should be driven by a GPIO output with logic HI between 2.1 V–20 V. In other applications, the VDD, EN1, and EN2 pins could be driven together directly from the system supply or from a GPIO output.
Each channel on the secondary side consists of back-to-back MOSFETs with a standoff voltage of +/-600 V from SM to S1 and SM to S2. The TPSI2072-Q1 MOSFET’s avalanche robustness and thermally conscious package design allow it to robustly support system level dielectric withstand testing (HiPot) and DC fast charger surge currents of up to 2 mA without requiring any external components.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPSI2072-Q1 2-Channel 600-V, 50-mA, Automotive Isolated Switch with 2-mA Avalanche Rating for Insulation Monitoring and High Voltage Measurements datasheet | PDF | HTML | 30 Jun 2023 |
| Application note | Basics of Solid-State Relays | PDF | HTML | 24 Jul 2024 | |
| Functional safety information | TPSI2072-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | 30 Jun 2023 | ||
| EVM User's guide | TPSI2072-Q1 EVM User's Guide | PDF | HTML | 29 Jun 2023 | |
| Certificate | TPSI2072Q1EVM EU Declaration of Conformity (DoC) | 27 Jun 2023 | ||
| Product overview | When to use SSR or Isolated Gate Driver | PDF | HTML | 04 Aug 2022 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOIC (DWQ) | 11 | Ultra Librarian |
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