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Texas Instruments TPSI3052SDWZR
- Part No.:
- TPSI3052SDWZR
- Manufacturer:
- Texas Instruments
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
TPSI3052SDWZR.pdf
- Description:
- DGTL ISO 3KV 1CH GATE DVR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:522
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Product details
Overview
TPSI3052SDWZR from Texas Instruments is an isolated switch driver IC with integrated 15-V gate supply, designed to drive external power transistors or SCRs in solid-state relay (SSR) systems. It delivers 1.5/3-A peak source/sink current, provides 3-kVRMS basic isolation per UL 1577 and DIN EN IEC 60747-17, operates across –40°C to 125°C ambient, and supports both two-wire (6.5–48 V) and three-wire (3–5.5 V) control modes.
For engineers reviewing the TPSI3052SDWZR datasheet, TPSI3052SDWZR pinout, TPSI3052SDWZR application, or TPSI3052SDWZR equivalent, this device enables robust AC/DC switching without secondary bias supply, offers resistor-selectable power transfer across seven levels, and integrates safety-certified isolation for industrial automation and building control systems.
Technical Context
The TPSI3052SDWZR implements transformer-based galvanic isolation with a self-powered secondary side, generating regulated 15-V VDDH and 5-V VDDM rails from primary-side energy transfer. Its dual-mode operation-two-wire (EN as high-voltage control input) and three-wire (separate VDDP and EN)-enables flexible integration into legacy relay-replacement and new low-voltage logic-controlled designs.
Power transfer level is set via an external resistor from PXFR to VSSP, directly adjusting either EN current limit (two-wire) or converter duty cycle (three-wire). The device features built-in under-voltage lockout on VDDP (2.7 V typ), VDDH (13 V typ), and VDDM (3.3 V typ), plus thermal shutdown at 173°C with 32°C hysteresis, ensuring reliable operation under load and fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation rating | 3-kVRMS for 1 minute (UL 1577); 4243-VPK basic insulation (DIN EN IEC 60747-17) |
| Gate drive output | 15-V regulated VDDH rail with 1.5-A peak source / 3-A peak sink into VDRV |
| Operating temperature | –40°C to +125°C ambient; junction limit 150°C with thermal shutdown at 173°C |
| Control interface | Two-wire mode: 6.5–48 V EN input; three-wire mode: 3–5.5 V VDDP + logic-level EN |
| Power transfer tuning | Seven discrete levels selectable via external PXFR-to-VSSP resistor (e.g., 20 kΩ = mid-range) |
| Common-mode immunity | 100 V/ns CMTI ensures noise resilience in high-dV/dt industrial environments |
| Propagation delay | 3–4.5 µs tLH_VDRV (three-wire), 185 µs tLH_VDRV (two-wire) - optimized for SSR timing budgets |
Pinout & Package
TPSI3052SDWZR is housed in an SOIC-8 (DWZ) package measuring 7.50 mm × 5.85 mm, with creepage and clearance ≥8.5 mm and internal insulation distance ≥120 µm to meet reinforced isolation requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Primary-side enable input | Active-high control: accepts 6.5–48 V (two-wire) or 0.7×VDDP logic (three-wire); starts power transfer and gate drive |
| 2 - PXFR | Power transfer configuration | Resistor-connected pin setting one of seven power levels; determines EN current limit (two-wire) or converter duty cycle (three-wire) |
| 3 - VDDP | Primary-side power supply | 3–5.5 V input in three-wire mode; powers internal oscillator and logic; not used in two-wire mode |
| 4 - VSSP | Primary-side ground | Reference for VDDP, EN, and PXFR; forms isolation barrier boundary with VSSS |
| 5 - VSSS | Secondary-side ground | Reference for VDDH, VDDM, and VDRV; floating domain isolated from primary side |
| 6 - VDDM | Secondary mid-rail supply | ~5-V regulated output; powers auxiliary circuitry up to 5 mA; decoupled with CDIV2 ≥ 3×CDIV1 |
| 7 - VDDH | Secondary high-rail supply | 15-V regulated output (13.9–16.2 V); powers gate driver stage and external switches; requires CDIV1 decoupling |
| 8 - VDRV | Gate driver output | Active-high open-drain compatible output; drives external MOSFET/IGBT gates with 1.5/3-A peak current |
Key Features
| Feature | Design Value |
|---|---|
| No secondary bias supply required | Self-powered secondary side eliminates need for isolated DC/DC converter or auxiliary winding |
| Configurable power transfer | Seven discrete output power levels via single external resistor - enables optimization of efficiency vs. drive capability |
| Functional safety support | Documentation available for ISO 26262/IEC 61508 system-level design; meets VDE 0884-17 and UL 1577 |
| AC/DC switching compatibility | Supports back-to-back MOSFETs for AC loads or single-switch DC topologies without redesign |
| Robust transient immunity | 100 V/ns CMTI and 5850-VPK surge isolation voltage ensure stable operation in noisy factory environments |
Applications
| Solid-State Relay (SSR) Replacement | Building Automation Load Control |
|---|---|
Use Scenario: Replacing electromechanical relays in HVAC damper actuators, lighting ballasts, and boiler controls where long life and silent operation are critical. IC Role / Device Role / Timing Role: Isolated switch driver providing gate signals to back-to-back MOSFETs or TRIACs; handles zero-crossing synchronization via external circuitry. Use Value: Eliminates contact wear and bounce, enabling >10⁹ operations versus ~10⁵ for mechanical relays; reduces EMI and acoustic noise in occupied spaces. |
Use Scenario: Controlling 24-VAC solenoid valves, fan speed regulators, and occupancy-sensor-triggered lighting circuits in commercial buildings. IC Role / Device Role / Timing Role: Primary-side EN driven by 24-VAC rectified signal (two-wire mode); secondary-side VDRV drives N-channel MOSFETs with fast 5-ns fall time. Use Value: Enables direct integration with legacy 24-VAC control wiring without additional power supplies; supports wide input range (6.5–48 V) for field flexibility. |
| Factory Automation I/O Modules | Industrial Motor Starter Units |
Use Scenario: Digital output modules in PLC racks requiring isolated 24-VDC switching for sensors, indicators, and small actuators. IC Role / Device Role / Timing Role: Three-wire mode with 3.3-V microcontroller EN signal; VDDM powers local level-shifters or status LEDs; VDRV drives logic-level MOSFETs. Use Value: Reduces BOM count by integrating isolation, gate drive, and auxiliary supply - replaces optocoupler + MOSFET driver + LDO stack. |
Use Scenario: Compact motor starter units for pumps, conveyors, and compressors where space-constrained PCBs demand high integration. IC Role / Device Role / Timing Role: Drives high-side N-channel MOSFETs in half-bridge configurations; VDDH supplies gate drive; PXFR resistor sets power for 10-A motor gate charge. Use Value: Delivers 3-A peak sink current to rapidly discharge gates during turn-off - critical for minimizing shoot-through risk in motor control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si827x (Silicon Labs) | Dual-channel isolated driver; no integrated secondary supply; requires external isolated bias | Better suited for dual-MOSFET bridge control; lacks auxiliary VDDM rail for supporting circuitry | Choose when dual-output timing alignment is critical and external bias is acceptable |
| ADUM4135 (Analog Devices) | Single-channel isolated gate driver with Miller clamp; 30-V max VDD; no integrated power transfer | Optimized for IGBT/SiC gate driving with desaturation detection; no resistor-tunable power | Prefer for high-voltage motor drives needing protection features over SSR simplicity |
Compared with Si827x and ADUM4135, the TPSI3052SDWZR uniquely integrates isolation, gate supply generation, and auxiliary power in one SOIC-8 package - reducing system size and eliminating external DC/DC converters required by alternatives.
Availability
TPSI3052SDWZR is available at Aetrix Electronics and suitable for solid-state relay replacement, building automation load control, and factory automation I/O modules requiring stable component supply, long-term lifecycle assurance, and certified isolation performance.
Supply support for TPSI3052SDWZR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader focused on analog, embedded processing, and connectivity technologies, serving industrial, automotive, and communications markets with high-reliability components.
The TPSI3052SDWZR belongs to TI's isolated driver product line, engineered specifically for solid-state relay consolidation - replacing mechanical relays and optocoupler-based solutions with higher reliability, longer lifetime, and simplified power architecture.
FAQ
What is the maximum continuous output current capability of the TPSI3052SDWZR gate driver?
The TPSI3052SDWZR provides 1.5-A peak source current and 3-A peak sink current on the VDRV output. These values are specified under steady-state VDDH conditions with 50-mA test loads. Continuous DC current is limited by thermal dissipation - at 125°C ambient, the device supports ≤29 mA average EN current in two-wire 48-V mode per safety limiting curves. For sustained gate charging, the 3-A sink enables rapid turn-off of power MOSFETs with Qg ≤ 100 nC.
Does the TPSI3052SDWZR require an external isolated DC/DC converter?
No, the TPSI3052SDWZR does not require an external isolated DC/DC converter. It generates its own isolated 15-V VDDH and 5-V VDDM supplies from primary-side energy transfer. This self-powered architecture eliminates the need for external isolated bias, reducing BOM count and board area - a key differentiator versus conventional isolated gate drivers like the ADUM4135 or Si827x.
How does the PXFR pin configure power transfer levels on the TPSI3052SDWZR?
The PXFR pin selects one of seven discrete power transfer levels using an external resistor to VSSP. In two-wire mode, the resistor sets EN input current limit (e.g., 20 kΩ = 6.8 mA); in three-wire mode, it adjusts the duty cycle of the internal power converter (e.g., 20 kΩ = ~50% duty). Resistor values are defined in Tables 8-1 and 8-2 of the datasheet - no calibration or trimming is needed.
Can the TPSI3052SDWZR drive SCR/TRIAC loads directly?
Yes, the TPSI3052SDWZR supports SCR and TRIAC triggering in both two-wire and three-wire modes. Its 3-A peak sink current delivers sufficient gate pulse energy for standard SCRs, and the fast 5-ns VDRV fall time ensures clean turn-off. For latching devices, the one-shot enable feature (available on TPSI3052S variant) provides precise single-pulse control - though TPSI3052SDWZR itself uses standard enable behavior.
What safety certifications apply to the TPSI3052SDWZR?
The TPSI3052SDWZR is certified to DIN EN IEC 60747-17 (VDE 0884-17) for basic insulation with 4243-VPK transient isolation voltage, and UL 1577 with 3000-VRMS withstand rating. Certificate number 40047657 (VDE) and file number UL-US-2300613-0 (UL) confirm compliance. These certifications validate suitability for functional safety applications per IEC 61508 SIL-2 and ISO 26262 ASIL-B system designs.
TPSI3052SDWZR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 3000Vrms
- Common Mode Transient Immunity (Min):
- 100V/ns
- Propagation Delay tpLH / tpHL (Max):
- -
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -
- Current - Output High, Low:
- 1.5A, 3A
- Current - Peak Output:
- 1.5A, 3A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- 37 mA
- Voltage - Output Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Approval Agency:
- UL, VDE
TPSI3052SDWZR FAQ
1.How can I place an order for TPSI3052SDWZR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSI3052SDWZR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPSI3052SDWZR reliable?
The price and inventory of TPSI3052SDWZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSI3052SDWZR is usually 5 days.
3.What payment methods are accepted for TPSI3052SDWZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSI3052SDWZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSI3052SDWZR?
TPSI3052SDWZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSI3052SDWZR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPSI3052SDWZR?
For technical support, including TPSI3052SDWZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSI3052SDWZR requirements.
6.How does Aetrix verify that TPSI3052SDWZR is sourced from the original manufacturer or authorized distributors?
All TPSI3052SDWZR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPSI3052SDWZR meets industry standards.
7.What is the process for return or replacement of TPSI3052SDWZR?
All TPSI3052SDWZR units undergo pre-shipment inspection (PSI). If there is an issue with TPSI3052SDWZR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPSI3052SDWZR part is unused and in its original packaging.
Return procedure for TPSI3052SDWZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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