TFS7702H Equivalent & Substitute Parts

Part Overview

The TFS7702H is an active, production-status DC-DC controller IC manufactured by Power Integrations, part of the HiperTFS™-2 series. This device functions as a multi-topology regulator controller supporting flyback and forward converter topologies with step-up and step-down capability. The TFS7702H is designed for applications requiring isolated or positive output configurations with dual output capability and operates across industrial temperature ranges. Substitute parts are identified when design requirements necessitate alternative controller options that maintain electrical and mechanical compatibility within the same product category and series.

Substiute Parts

TFS7702H

Power IntegrationsIn Stock: 1154TFS7702H Datasheet

Current PartRFQ

TFS7708H

Power IntegrationsIn Stock: 1222TFS7708H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TFS7702H are identified based on strict electrical and mechanical parameter matching within the Power Integrations HiperTFS™-2 series. The substitution criteria are:

Primary Matching Parameters:

• Manufacturer: Power Integrations
• Series: HiperTFS™-2
• Topology: Flyback, Forward Converter
• Function: Step-Up, Step-Down
• Output Configuration: Positive, Isolation Capable
• Number of Outputs: 2
• Output Type: Transistor Driver
• Voltage - Supply (Vcc/Vdd): Up to 11.5V
• Frequency - Switching: 66kHz, 132kHz
• Duty Cycle (Max): 63%
• Operating Temperature: -40°C ~ 150°C (TJ)
• Package / Case: 16-SSIP, 12 Leads, Exposed Pad, Formed Leads
• Supplier Device Package: eSIP-16F
• Mounting Type: Through Hole
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The TFS7708H qualifies as a parametric equivalent substitute because it maintains identical specifications across all critical electrical parameters, thermal operating range, switching frequency options, duty cycle rating, and mechanical packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the TFS7702H and TFS7708H are active production components from Power Integrations with identical electrical specifications, thermal ratings, and mechanical packaging. Selection between these parts is based on availability and inventory status rather than functional differences.

TFS7702H: 1121 pieces in stock. Active product status. RoHS compliant. MSL 1 rating. Suitable for immediate deployment in production environments.

TFS7708H: 1176 pieces in stock. Active product status. RoHS compliant. MSL 1 rating. Suitable for immediate deployment in production environments.

Both devices meet all regulatory compliance requirements (RoHS, REACH unaffected, ECCN EAR99, HTSUS 8542.39.0001) and are suitable for applications requiring multi-topology DC-DC controller functionality with isolated or positive output configurations.

Frequently Asked Questions (FAQ)

Q: Can TFS7708H be used as a direct replacement for TFS7702H?

A: Yes. The TFS7708H is a parametric equivalent substitute. All electrical parameters, thermal operating range, switching frequency options, duty cycle rating, and mechanical packaging specifications are identical. Pin configuration and package type (eSIP-16F) are identical, enabling direct substitution in through-hole mounting applications.

Q: Are there any differences in control features between TFS7702H and TFS7708H?

A: No. Both devices provide identical control features: Enable and Reset functions. Serial interfaces are not supported on either device.

Q: What is the significance of the eSIP-16F package designation?

A: eSIP-16F designates a 16-pin enhanced Single In-line Package with 12 functional leads and an exposed pad, using formed leads for through-hole mounting. This package type is identical for both TFS7702H and TFS7708H, ensuring mechanical and electrical compatibility.

Q: Are both parts suitable for industrial temperature applications?

A: Yes. Both TFS7702H and TFS7708H operate across the industrial temperature range of -40°C to 150°C junction temperature, meeting requirements for harsh environment applications.

Q: What is the moisture sensitivity rating for these devices?

A: Both devices carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under normal storage conditions without moisture-related degradation concerns.

Q: Do these devices support synchronous rectification or clock synchronization?

A: No. Neither TFS7702H nor TFS7708H includes synchronous rectifier functionality or clock synchronization capability. Both are asynchronous controller designs.

Q: What switching frequency options are available?

A: Both devices support dual switching frequency operation at 66kHz and 132kHz, selectable based on application requirements.