TLP701HF(D4-TP,F) Equivalent & Substitute Parts

Part Overview

The TLP701HF(D4-TP,F) is a 2-channel optical coupling gate driver manufactured by Toshiba Semiconductor and Storage. This component provides 5000Vrms isolation with 600mA peak output current capability, designed for gate drive applications requiring high-voltage isolation in power electronics circuits. The device operates across the industrial temperature range of -40°C to 125°C and is housed in a 6-SDIP surface mount package.

This part is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued design support, maintain supply chain continuity, and access active product alternatives with comparable or enhanced performance characteristics.

Substiute Parts

TLP701HF(D4-TP,F)

Toshiba Semiconductor and StorageIn Stock: 8498TLP701HF(D4-TP,F) Datasheet

Current PartRFQ

TLP5771H(D4TP4,E

Toshiba Semiconductor and StorageIn Stock: 2339TLP5771H(D4TP4,E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLP701HF(D4-TP,F) is evaluated based on the following critical parameters that define functional compatibility:

Isolation Voltage: Both the main part and substitute must maintain 5000Vrms isolation to preserve safety and regulatory compliance in high-voltage applications.

Output Supply Voltage Range: The 10V ~ 30V supply range must be supported to ensure operation within existing circuit designs.

Operating Temperature Range: The -40°C to 125°C range must be maintained for industrial and extended-temperature applications.

Approval Agencies: Certifications (CSA, cUL, UL, VDE) validate compliance with safety standards required in regulated applications.

Channel Configuration: While the main part features 2 channels, substitutes with reduced channel count (1 channel) are acceptable when multiple devices can be paralleled or when application requirements permit single-channel operation.

Output Current Capability: Substitutes must provide sufficient output current to drive gate circuits. The TLP5771H offers 1A continuous output, exceeding the 400mA requirement of the main part.

Package Compatibility: Surface mount packages (6-SOIC) are interchangeable within PCB layout constraints, though physical dimensions may vary slightly.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TLP5771H(D4TP4,E)

The TLP5771H is the manufacturer-recommended substitute for the obsolete TLP701HF. Both devices are manufactured by Toshiba Semiconductor and Storage and share identical isolation voltage (5000Vrms) and operating temperature range (-40°C to 125°C). Both support the same output supply voltage range (10V ~ 30V).

The TLP5771H is classified as an active product, ensuring long-term availability and continued manufacturing support. This part carries expanded regulatory approvals (CQC, CSA, cUL, UL, VDE) compared to the main part, providing broader compliance coverage.

Key Differences:

The TLP5771H is a single-channel device compared to the two-channel configuration of the TLP701HF. However, the substitute offers superior electrical performance: output current capability increases from 400mA to 1A, propagation delay decreases from 700ns to 150ns, and common mode transient immunity improves from 20kV/µs to 35kV/µs. Pulse width distortion is reduced from 500ns to 50ns.

Application Considerations:

For designs requiring dual-channel isolation, two TLP5771H devices can be used in parallel or on separate signal paths. The improved propagation delay and reduced pulse width distortion of the TLP5771H provide enhanced timing performance in gate drive applications. The higher output current capability (1A vs. 400mA) accommodates higher-capacitance gate loads or faster switching transitions.

Package Compatibility:

Both devices use 6-SOIC surface mount packages. The TLP5771H package width is 7.50mm compared to 6.80mm for the TLP701HF. PCB layout modifications may be required to accommodate the slightly larger package footprint.

Frequently Asked Questions (FAQ)

Q: Can the TLP5771H directly replace the TLP701HF in existing designs?

A: Direct pin-for-pin replacement is not possible due to channel count differences (1 channel vs. 2 channels). However, the TLP5771H can functionally replace the TLP701HF when circuit topology is adapted. For dual-channel applications, two TLP5771H devices are required. The improved electrical performance of the TLP5771H (faster propagation delay, higher output current) makes it suitable for gate drive applications across the same voltage and temperature ranges.

Q: What is the impact of the package size difference?

A: The TLP5771H package width is 0.295" (7.50mm) compared to 0.268" (6.80mm) for the TLP701HF. This 0.70mm difference requires PCB layout verification to ensure adequate spacing from adjacent components. Footprint modifications may be necessary in space-constrained designs.

Q: Are the regulatory certifications equivalent?

A: The TLP5771H carries additional certification (CQC) beyond the TLP701HF certifications (CSA, cUL, UL, VDE). Both devices meet the same core safety standards (CSA, cUL, UL, VDE), ensuring compliance in regulated applications. The expanded certifications of the TLP5771H provide broader market acceptance.

Q: How does the improved propagation delay affect circuit performance?

A: The TLP5771H propagation delay of 150ns (vs. 700ns for TLP701HF) reduces signal latency in gate drive circuits. This improvement enables faster switching transitions and tighter timing control in power electronics applications. Pulse width distortion is also reduced from 500ns to 50ns, improving signal fidelity.

Q: What is the input current requirement difference?

A: The TLP5771H requires a maximum DC forward current of 8mA compared to 25mA for the TLP701HF. This lower input current requirement reduces drive circuit power consumption and simplifies input signal conditioning.

Q: Is the TLP5771H suitable for high-temperature applications?

A: Yes. The TLP5771H maintains the same operating temperature range (-40°C to 125°C) as the TLP701HF, supporting industrial and extended-temperature applications without derating.