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Toshiba Semiconductor and Storage TLP3450(TP,F
- Part No.:
- TLP3450(TP,F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Solid State Relays (SSR)
- Package:
- 4-SMD (0.096", 2.45mm)
- Datasheet:
-
TLP3450(TP,F.pdf
- Description:
- SSR RELAY SPST-NO 200MA 0-20V
- Quantity:
- Payment:
- Shipping:
Inventory:8,733
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Product details
Overview
TLP3450(TP,F from Toshiba Electronic Devices & Storage Corporation is a surface-mount, normally-open photorelay IC comprising an infrared LED optically coupled to a photo-MOSFET in a VSON 4-pin package. It delivers 200 mA max ON-state current, 5 Ω max ON-resistance, 0.8 pF typ. output capacitance, and 500 Vrms isolation voltage - enabling high-speed signal switching in automated test equipment.
For engineers reviewing the TLP3450(TP,F datasheet, TLP3450(TP,F pinout, TLP3450(TP,F application, or TLP3450(TP,F equivalent, key selection criteria include low COFF for <200 µs turn-on/turn-off times, 3 mA max trigger LED current for logic-level drive compatibility, and VSON-4 packaging for high-density PCB layouts in ATE and memory testers.
Technical Context
The TLP3450(TP,F implements optical isolation via GaAs LED-to-photo-MOSFET coupling with internal gate drive circuitry that ensures fast MOSFET switching without external biasing. Its two-terminal configuration (pins 1+2 shorted as input, pins 3+4 shorted as output) simplifies PCB routing while maintaining galvanic separation.
Designed for high-frequency signal path control, it operates with 5–16 V supply voltage and supports pulsed ON-state currents up to 600 mA. The device's 20 V min OFF-state voltage rating and 10 nA max OFF-state leakage ensure reliable blocking in logic-level tester channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Type | Normally-open (1-Form-A) solid-state relay - no mechanical wear, suitable for >10⁹ cycle applications |
| ON-State Current | 200 mA max continuous - supports driving logic IC inputs and small-signal loads in ATE channel cards |
| ON-Resistance | 3 Ω typ., 5 Ω max - minimizes voltage drop and power loss at 200 mA, critical for precision signal routing |
| Output Capacitance | 0.8 pF typ., 1.1 pF max - enables <200 µs switching with minimal signal distortion in >100 MHz test waveforms |
| Isolation Voltage | 500 Vrms min - meets basic safety requirements for isolated digital I/O in benchtop and rack-mounted testers |
| Trigger LED Current | 3 mA max - compatible with standard CMOS/TTL logic outputs without external current-limiting resistor redesign |
| OFF-State Voltage | 20 V min - supports operation across 5–16 V logic domains while maintaining safe blocking margin |
Pinout & Package
Package: VSON-4 (Toshiba designation 11-2D1A), 2.0 × 1.25 × 0.55 mm, 10 mg typical weight, surface-mount, non-leaded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | LED Anode | Positive input terminal for infrared LED; requires series resistor when driven from 3.3 V or 5 V logic |
| 2 (Cathode) | LED Cathode | Ground return for LED; pins 1 and 2 are internally shorted as a two-terminal input port |
| 3 (Drain) | MOSFET Drain | High-side output terminal; pins 3 and 4 are internally shorted as a two-terminal output port |
| 4 (Drain) | MOSFET Drain | Redundant drain connection for low-inductance, low-resistance output path in compact layout |
Key Features
| Feature | Design Value |
|---|---|
| Low Output Capacitance | 0.8 pF typ. - preserves signal integrity during high-speed switching in memory tester data paths |
| Logic-Level Trigger Compatibility | 3 mA max IFT - allows direct interface with FPGA I/O banks and microcontroller GPIO without level-shifting |
| Compact Surface-Mount Package | VSON-4 (2.0 × 1.25 mm) - enables dense channel count on ATE daughterboards with minimal board area |
| Galvanic Isolation | 500 Vrms - isolates tester controller logic from DUT power domains, reducing ground-loop noise |
| High Reliability Solid-State Switching | No moving parts, >10⁹ cycles - eliminates contact wear failure mode common in electromechanical relays |
Applications
| ATE Channel Switching | High-Speed Logic Tester I/O |
|---|---|
|
Use Scenario: Routing stimulus signals between pattern generator and DUT pins in automatic test equipment. IC Role / Device Role / Timing Role: Solid-state signal path switch providing galvanically isolated, low-capacitance connection. Use Value: Enables sub-200 µs channel reconfiguration with <1.1 pF COFF, minimizing timing skew across parallel test channels. |
Use Scenario: Enabling/disabling logic-level signals to multiple DUT inputs simultaneously in high-speed logic IC testers. IC Role / Device Role / Timing Role: Normally-open photorelay acting as digitally controlled gate for TTL/CMOS signal distribution. Use Value: 3 mA max trigger current allows direct FPGA GPIO control; 5 Ω max RON ensures minimal voltage droop at 200 mA load. |
| Memory Tester Data Bus | Modular Instrumentation Switching |
|
Use Scenario: Isolating and selecting between multiple DDR/LPDDR memory signal lanes during parametric testing. IC Role / Device Role / Timing Role: High-frequency analog switch for bidirectional data bus segments with DC coupling capability. Use Value: 0.8 pF typ. COFF and 15 µs typ. tON preserve rise/fall times of >500 Mbps memory waveforms without added jitter. |
Use Scenario: Configuring signal paths in modular benchtop instruments such as multi-channel oscilloscopes or arbitrary waveform generators. IC Role / Device Role / Timing Role: Compact, isolated relay for front-panel or internal signal routing under microcontroller control. Use Value: VSON-4 footprint and 500 Vrms isolation allow safe integration into mixed-signal instrument backplanes with shared ground domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photorelay applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLP3406(TP,F | Higher 400 mA max ION, 2.5 Ω max RON, same VSON-4 package and 0.8 pF COFF | Better suited for higher-current signal routing (e.g., driving terminated transmission lines), otherwise identical ATE use cases | Select TLP3406(TP,F when >200 mA load current or <2.5 Ω RON is required; otherwise TLP3450(TP,F offers optimal cost/performance balance |
| PS7141-AL-AX | SO-4 package (larger footprint), 100 mA max ION, 1.5 pF COFF, 3750 Vrms isolation | Higher isolation voltage but slower switching and lower current capacity; used where safety certification dominates speed | Choose PS7141-AL-AX only when reinforced isolation (>3000 Vrms) is mandated; TLP3450(TP,F is preferred for speed and density |
Compared with TLP3406(TP,F and PS7141-AL-AX, the TLP3450(TP,F provides the best trade-off of ultra-low capacitance, compact VSON-4 size, and 200 mA switching capability - making it the default choice for space-constrained, high-speed ATE channel cards where 500 Vrms isolation suffices.
Availability
TLP3450(TP,F is available at Aetrix Electronics and suitable for automatic test equipment, high-speed logic IC testers, high-speed memory testers, and measuring instruments requiring stable component supply and consistent tape-and-reel delivery.
Supply support for TLP3450(TP,F 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
Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and optoelectronics with emphasis on reliability, miniaturization, and application-specific performance.
The TLP3450 belongs to Toshiba's photorelay product line, engineered specifically for high-speed, high-density signal switching in automated test and measurement systems where mechanical relay limitations must be overcome.
FAQ
What is the maximum continuous ON-state current rating for the TLP3450(TP,F?
The TLP3450(TP,F has a maximum continuous ON-state current rating of 200 mA at Ta = 25°C. Derating applies above 25°C - current decreases by 2 mA per °C rise, down to 0 mA at 125°C junction temperature. This rating ensures stable operation in densely packed ATE channel boards where thermal dissipation is constrained.
Does the TLP3450(TP,F require an external gate resistor or bias network?
No, the TLP3450(TP,F integrates all necessary gate drive circuitry within the photo-MOSFET die. It operates as a self-contained, two-terminal output device - pins 3 and 4 are internally shorted - and requires only the LED input (pins 1 and 2) to be driven with appropriate current limiting. No external components are needed for basic switching function.
What is the recommended LED forward current for reliable triggering of the TLP3450(TP,F?
The TLP3450(TP,F triggers reliably with ≤3 mA LED forward current (IFT max), and typical operation uses 5 mA for robust margin. At 10 mA, VF is 1.27 V typ., allowing direct drive from 3.3 V or 5 V logic with a simple series resistor (e.g., 220 Ω for 3.3 V). This low drive requirement simplifies FPGA and MCU interface design.
Can the TLP3450(TP,F switch AC signals, or is it DC-only?
The TLP3450(TP,F can switch both DC and AC signals up to its 20 V peak OFF-state voltage rating and 200 mA RMS current limit. Its photo-MOSFET output is bidirectional and symmetrical, supporting true analog signal routing - including low-voltage AC waveforms - provided the signal swing remains within the specified voltage and current boundaries.
What is the moisture sensitivity level (MSL) and baking requirement for the TLP3450(TP,F?
The TLP3450(TP,F is packaged in moisture-proof tape-and-reel (TP type) with MSL 1 rating per J-STD-020. Unopened bags may be stored up to 24 months at ≤30°C/90% RH. After opening, assembly must occur within 168 hours at ≤30°C/70% RH. If the humidity indicator turns pink (>30% RH), baking at 60±5°C for 64–72 hours is required before mounting.
TLP3450(TP,F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TLP3450
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Mounting Type:
- Surface Mount
- Circuit:
- SPST-NO (1 Form A)
- Output Type:
- AC, DC
- Voltage - Input:
- 1.27VDC
- Voltage - Load:
- 0 V ~ 20 V
- Load Current:
- 200 mA
- On-State Resistance (Max):
- 5 Ohms
- Termination Style:
- SMD (SMT) Tab
- Operating Temperature:
- -40°C ~ 110°C
- Supplier Device Package:
- 4-VSON (1.45x2.45)
- Approval Agency:
- -
- Grade:
- -
- Qualification:
- -
TLP3450(TP,F FAQ
1.How can I place an order for TLP3450(TP,F through Aetrix?
Please submit a Request for Quotation (RFQ) for TLP3450(TP,F 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 TLP3450(TP,F reliable?
The price and inventory of TLP3450(TP,F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLP3450(TP,F is usually 5 days.
3.What payment methods are accepted for TLP3450(TP,F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLP3450(TP,F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLP3450(TP,F?
TLP3450(TP,F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLP3450(TP,F 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 TLP3450(TP,F?
For technical support, including TLP3450(TP,F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLP3450(TP,F requirements.
6.How does Aetrix verify that TLP3450(TP,F is sourced from the original manufacturer or authorized distributors?
All TLP3450(TP,F 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 TLP3450(TP,F meets industry standards.
7.What is the process for return or replacement of TLP3450(TP,F?
All TLP3450(TP,F units undergo pre-shipment inspection (PSI). If there is an issue with TLP3450(TP,F, 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 TLP3450(TP,F part is unused and in its original packaging.
Return procedure for TLP3450(TP,F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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