Texas Instruments TPSI3052/TPSI3052-Q1 Isolated Switch Driver

Texas Instruments TPSI3052/TPSI3052-Q1 Isolated Switch Drivers are fully integrated when combined with an external power switch, forming a completely isolated Solid State Relay (SSR). With a nominal gate drive voltage of 15V with 1.5/3.0A peak source and sink current, a large variety of external power switches can be chosen to meet a wide range of applications. The TPSI3052/TPSI3052-Q1 generates its own secondary bias supply from the power received from its primary side, so no isolated secondary supply bias is required. Additionally, the TPSI3052/TPSI3052-Q1 can optionally supply power to external supporting circuitry for various application needs. The TPSI3052-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

No isolated secondary supply required
Drives external power transistors or SCRs
5kV_RMS reinforced isolation
15V gate drive with 1.5A/3A peak source and sink current
Up to 50mW supply for external auxiliary circuitry
Supports AC or DC switching
Supports two-wire or three-wire modes
Functional safety-capable:
- Documentation available to aid functional safety system design

Seven levels of power transfer and resistor selectable
AEC-Q100 qualified for automotive applications:
- -40 to 125°C, TA temperature grade 1
Safety-related certifications
- Planned: 7071V_PK reinforced isolation per DIN EN IEC 60747-17 (V_DE 0884-17)
- Planned: 5kV_RMS isolation for 1 minute per UL 1577