TFS7706H Equivalent & Substitute Parts

Part Overview

The TFS7706H is an active Power Management IC (PMIC) manufactured by Power Integrations, belonging to the HiperTFS™-2 series. This device functions as a multi-topology DC-DC controller supporting Flyback and Forward Converter topologies with Step-Up and Step-Down capability. The IC provides transistor driver output with positive, isolation-capable configuration and dual output channels. Current inventory status shows 1480 pieces in stock as new original components. Alternative part numbers may be required due to packaging availability, supply chain constraints, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

TFS7706H

Power IntegrationsIn Stock: 1555TFS7706H Datasheet

Current PartRFQ

TFS7708H

Power IntegrationsIn Stock: 1222TFS7708H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TFS7706H is determined by strict equivalence across the following critical parameters:

Topology & Function Matching: The substitute part must support identical topologies (Flyback, Forward Converter) and identical functions (Step-Up, Step-Down DC-DC control).

Output Specifications: The substitute must provide the same output type (Transistor Driver), output configuration (Positive, Isolation Capable), number of outputs (2), and output phases (1).

Electrical Ratings: Supply voltage range (Up to 11.5V), switching frequency options (66kHz, 132kHz), and maximum duty cycle (63%) must be identical.

Package & Mounting: The substitute must use the same package type (16-SSIP, 12 Leads, Exposed Pad, Formed Leads / eSIP-16F) and mounting method (Through Hole).

Environmental & Compliance: Operating temperature range (-40°C ~ 150°C), RoHS compliance status, and MSL rating (1) must match.

Manufacturer & Series: Both parts must originate from Power Integrations and belong to the HiperTFS™-2 series.

The TFS7708H meets all these criteria and is classified as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (TFS7706H): This part is the reference component with active product status and higher current inventory availability (1480 pieces). It is fully RoHS compliant, REACH unaffected, and carries EAR99 export classification. MSL rating of 1 indicates unlimited shelf life under standard storage conditions.

Substitute Selection (TFS7708H): This part is a parametric equivalent with identical electrical specifications, topology support, output configuration, and environmental ratings. Both parts are manufactured by Power Integrations within the HiperTFS™-2 series and maintain active product status. The primary difference is packaging format (Tube for TFS7708H versus unspecified for TFS7706H) and inventory quantity (1176 pieces available). Compliance certifications are equivalent across both parts.

Selection Criteria: Choose TFS7706H when standard packaging is acceptable and maximum inventory availability is required. Select TFS7708H when tube packaging is specified or when the primary part is unavailable. Both parts satisfy identical electrical and mechanical requirements for through-hole mounting applications requiring multi-topology DC-DC control with dual outputs.

Frequently Asked Questions (FAQ)

Q: Can TFS7708H directly replace TFS7706H in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, topology support (Flyback, Forward Converter), output configuration (Positive, Isolation Capable, dual outputs), supply voltage (Up to 11.5V), switching frequency (66kHz, 132kHz), duty cycle (63%), operating temperature range (-40°C ~ 150°C), and package type (16-SSIP, 12 Leads, Exposed Pad, Formed Leads / eSIP-16F). Through-hole mounting compatibility is identical.

Q: What is the difference between TFS7706H and TFS7708H?

A: The parts are electrically and functionally identical. The documented differences are packaging format (TFS7708H supplied in Tube) and current inventory levels (TFS7706H: 1480 pieces; TFS7708H: 1176 pieces). All electrical parameters, topologies, output specifications, and compliance certifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both TFS7706H and TFS7708H are RoHS compliant and REACH unaffected. Both carry MSL rating 1 (Unlimited) and EAR99 export classification.

Q: What is the operating temperature range for these parts?

A: Both parts operate across -40°C to 150°C junction temperature (TJ), suitable for industrial and extended temperature applications.

Q: Can these parts be used in isolation-capable applications?

A: Yes. Both TFS7706H and TFS7708H support isolation-capable output configuration, enabling isolated DC-DC converter designs with positive output topology.

Q: What mounting method do these parts require?

A: Both parts use through-hole mounting with 16-SSIP package configuration featuring 12 leads, exposed pad, and formed leads (eSIP-16F).

Q: Are there any serial interface capabilities?

A: No. Both parts do not include serial interface functionality. Control features are limited to Enable and Reset functions.