TPSI3052QDWZRQ1 isolated driver and DWZ order code
TPSI3052QDWZRQ1 is an automotive reinforced isolated switch driver with integrated 15 V gate supply in SO-MOD (DWZ) | 8, forming an SSR front-end when paired with external power FETs or SCRs. It is AEC-Q100 grade 1 qualified and eliminates a separate isolated secondary bias in many designs. Non-Q1 or different PXFR-capable siblings are not automatic replacements. Keep the full QDWZRQ1 orderable on automotive BOM lines.
Isolation, gate drive and power-transfer constraints
The datasheet states 5 kVRMS reinforced isolation, 15 V gate drive with 1.5/3 A peak source and sink current, and up to 50 mW auxiliary secondary supply for supporting circuitry. No isolated secondary supply is required for the driver bias itself. Two-wire and three-wire control modes change primary pin and supply requirements; power-transfer level is resistor-selectable across seven settings. Isolation working voltage and lifetime figures are condition-bound safety data—apply the cited VDE/UL context rather than treating kVRMS as a universal system rating.
Two-wire versus three-wire control and switching devices
Compare optocoupler or mechanical-relay replacements by reinforced isolation certificates, gate current, secondary bias budget and automotive qualification—not by package width alone. External FET SOA and creepage still dominate SSR design. Confirm PXFR resistor choice, EN wiring and temperature grade. RFQ TPSI3052QDWZRQ1 with switch type, bus voltage and quantity; pricing is RFQ-only.
TPSI3052QDWZRQ1 electrical and isolation parameters
| Selection parameter | TI-verified value | Engineering condition |
|---|---|---|
| Isolation | 5kVRMS reinforced isolation | Reinforced isolation rating per cited safety standards; working voltage lifetime applies |
| Gate | 15V gate drive with 1.5/3A peak source and sink | Peak gate source/sink currents; average drive depends on switching rate and PXFR setting |
| Aux | Up to 50mW supply for external auxiliary circuitry | Auxiliary secondary power budget is configuration-dependent |
| Modes | Supports two-wire or three-wire modes | Two-wire versus three-wire control modes change pin and supply requirements |
| Qual | AEC Q-100 qualified for automotive applications | AEC-Q100 automotive qualification grade as stated |
| Temp | Temperature grade 1: –40 to +125°C, TA | Ambient operating temperature window for the orderable grade |
| No bias | No isolated secondary supply required | Integrated secondary bias generation; still observe primary supply limits |
| Catalog package | SO-MOD (DWZ) | 8 | TI catalog package SO-MOD (DWZ); LCSC may label SOIC-8 — match TI mechanical drawing before footprint approval |
Automotive isolated-switch procurement and datasheet
For TPSI3052QDWZRQ1, state quantity, external MOSFET or SCR arrangement, primary-side supply, expected switch duty and isolation requirements. Confirm the DWZ SO-MOD footprint and the selected transfer mode.
