Calculation tool
ACTIVE-PRECHARGE-CALC — Active precharge reference design (TIDA-050063) calculator tool
Spreadsheet calculator to help select component values for active precharge design based on customer requirements.
TPSI3052-Q1
Automotive reinforced isolated switch driver with integrated 15-V gate supply
Data sheet
A newer version of this product is available
Same functionality with different pin-out to the compared device
TPSI3052-Q1
- No isolated secondary supply required
- Drives external power transistors or SCRs
- 5kVRMS reinforced isolation
- 15V gate drive with 1.5/3A 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
- Seven levels of power transfer, resistor selectable
- Functional Safety-Capable
- AEC Q-100 qualified for automotive applications:
- Temperature grade 1: –40 to +125°C, TA
- Safety-Related Certifications
- 7071VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5kVRMS isolation for 1 minute per UL 1577
- Long isolation lifetime
- 30+ years at 1.2kVRMS or 1700VDC
- 15+ years at 1.7kVRMS or 2400VDC
The TPSI3052-Q1 is a fully integrated, isolated switch driver, which when combined with an external power switch, forms a complete isolated solid state relay (SSR). With a nominal gate drive voltage of 15V with 1.5/3.0A peak source and sink current, select from a large variety of external power switches to meet a wide range of applications. The 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-Q1 can optionally supply power to external supporting circuitry for various application needs.
The TPSI3052-Q1 supports two modes of operation based on the number of input pins required. In two-wire mode, typically found in driving mechanical relays, controlling the switch requires only two pins and supports a wide voltage range of operation from 6.5V to 48V. In three-wire mode, the primary supply from 3V to 5.5V is supplied externally, and the switch is controlled through a separate enable. Available in three-wire mode only, the TPSI3052S-Q1 features a one-shot enable for the switch control. This feature is useful for driving SCRs that typically require only one pulse of current to trigger.
The secondary side provides a regulated, floating supply rail of 15V for driving a large variety of power switches with no need for a secondary bias supply. The application can drive single power switches for DC applications or dual, back-to-back power switches for AC applications, as well as various types of SCR. The TPSI3052-Q1 integrated isolation protection is robust with higher reliability, lower power consumption, and increased temperature ranges than traditional mechanical relays and optocouplers.
Adjust the power transfer of the TPSI3052-Q1 by selecting one of seven power level settings using an external resistor from the PXFR pin to VSSP. This action allows for tradeoffs in power dissipation versus power provided on the secondary depending on the needs of the application.
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Technical documentation
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View all 15 Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TPSI3052Q1EVM — TPSI3052-Q1 evaluation module with reinforced isolation and 15-V gate drive
The TPSI3052Q1EVM is a two-copper layer board containing multiple test points and jumpers in order to fully evaluate the functionality of the TPSI3052-Q1 device.
Simulation model
TPSI3052-Q1 and TPSI3052 PSpice Transient Model (DWZ Package, Standard Enable) (Rev. E)
SLVMDV1E.ZIP (40 KB) - PSpice Model
Simulation model
TPSI3052S-Q1 and TPSI3052S PSpice Transient Model (DWZ Package, One-Shot Enable) (Rev. E)
SLVMDV0E.ZIP (39 KB) - PSpice Model
Calculation tool
SLVRBI9 — TPSI305x Design Calculator
This calculator may be used to estimate the power transfer and associated startup time and maximum switching frequency possible of the TPSI305x family of devices given various user inputs.
Supported products & hardware
Reference designs
TIDA-050063 — High-voltage solid-state relay active precharge reference design
This reference design introduces an innovative circuit topology to precharge large DC link capacitors for hybrid electric vehicles (HEV) and electric vehicles (EV). The reference design features a system which does not require a microcontroller and can be operated with a 5-V supply. The reference (...)
Design guide: PDF
Reference designs
TIDA-050059 — Overcurrent and overtemperature protection for solid-state relays reference design
This reference design shows how to achieve overcurrent and overtemperature protection for a solid-state relay. The reference design features the TPSI3050-Q1 5-kVRMS reinforced isolated switch driver. TPSI3050-Q1 device integrates a laminate transformer to achieve isolation while transferring signal (...)
Design guide: PDF
Reference designs
TIDA-050058 — Zero-cross switching for solid-state relays reference design
This reference design shows how to achieve zero-cross switching (ZCS) with a solid-state relay. The reference design features the TPSI3050-Q1 isolated switch driver. TPSI3050-Q1 device integrates a laminate transformer to achieve isolation while transferring signal and power to the secondary side. (...)
Design guide: PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SO-MOD (DWZ) | 8 | Ultra Librarian |
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