Texas Instruments TPSI3050/TPSI3050-Q1 Reinforced Switch Drivers

Texas Instruments TPSI3050/TPSI3050-Q1 Reinforced Isolated Switch Drivers are fully integrated and form a completely isolated Solid State Relay (SSR) when combined with an external power switch. The nominal gate drive voltage of 10V with 1.5A/3.0A peak source and sink current allows a large variety of external power switches to be chosen, meeting a wide range of applications.

The TI TPSI3050/TPSI3050-Q1 reinforced switch drivers generate a secondary bias supply from the power received from its primary side, so no isolated secondary supply bias is required. Additionally, the TPSI3050-Q1 can optionally supply power to external supporting circuitry for various application requirements.

The device is available in a SOIC 8-pin (DWZ) 7.50mm x 5.85mm package.

Features

No isolated secondary supply required
Drives external power transistors or SCRs
5kV_RMS reinforced isolation
10V gate drive with 1.5A/3A peak source/sink current
Up to 50mW supply for external auxiliary circuitry
Supports AC or DC switching
Supports two-wire or three-wire modes
Automotive temperature range –40 to +125°C (Grade 1), AEC-Q100 qualified ambient (TPSI3050-Q1)

Seven levels of power transfer, resistor selectable
Functional safety-capable
- Documentation available to aid functional safety system design
Safety-related certifications
- Planned: 7071V_PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- Planned: 5kV_RMS isolation for 1 minute per UL 1577

Applications

Solid-state relays (SSR)
Battery management systems
Onboard chargers

Hybrid, electric, and powertrain systems
Building automation
Factory automation and control

Texas Instruments TPSI3050/TPSI3050-Q1 Reinforced Switch Drivers

Features

Applications

Schematic

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