NXP TEA1795

Mfr. Part

TEA1795

Manufacturer

Freescale / NXP Semiconductors. Y-IC is a quality distributor of NXP products, and we will provide you with the best products and services.

Detailed Description

TEA1795 is a GreenChip synchronous rectifier (SR) controller IC for high-efficiency AC‑DC power supplies. It controls a secondary-side MOSFET to replace a Schottky/ultrafast diode, cutting rectification losses and heat. Designed for flyback converters operating in Discontinuous Conduction Mode (DCM) and Quasi-Resonant (QR) modes, it delivers higher efficiency, improved thermal performance, and lower standby power. Category: Integrated Circuits (ICs). Classification: Specialized ICs. Current stock: 1230 units. Data code: 18+.

Key Features

Synchronous rectification control for flyback power supplies (DCM and QR)

Smart sensing and adaptive gate drive for safe and efficient MOSFET control

Low quiescent/standby power for energy-saving designs

Wide input supply tolerance (varies by device suffix; see datasheet)

Robust protection: undervoltage lockout, false-trigger immunity, body diode conduction management

Fast turn-off during reverse current detection to prevent shoot-through

Compatible with common secondary-side MOSFETs used in adapters and chargers

Stable operation across load and line conditions

Key Advantages

Higher efficiency than diode rectification, especially at medium to high load

Lower heat in the secondary stage; easier thermal design and smaller heatsinks

Better efficiency at light load; helps meet energy regulations and eco-design targets

Improved reliability due to controlled switching and protection mechanisms

Simple drop-in control solution for existing flyback designs targeting SR upgrade

Reduced overall BOM cost in designs replacing large diodes with MOSFETs

Packaging

Package/Case: 590 (manufacturer/package code as provided; contact us for exact mechanical details)

Typical form factor for this family: small-outline 8-pin packages (e.g., SOIC‑8/TSSOP‑8) depending on TEA1795 variant; confirm with the datasheet for the exact suffix

Molding material: standard epoxy encapsulation for IC reliability and insulation

Pin configuration (typical for SR controllers; confirm in datasheet): VCC supply, GND, sense/monitor pins to detect conduction intervals, gate drive output to MOSFET, optional reference/enable pins

Thermal characteristics: junction-to-ambient thermal resistance depends on package and PCB; use ample copper area on ground/supply pins for heat spreading; follow datasheet thermal guidelines

Electrical properties (typical for SR controllers; see datasheet for exact values): low supply current, UVLO thresholds for safe start/stop, gate drive tailored to MOSFET requirements, fast turn-off during reverse current detection

Lifecycle

Lifecycle status: production status can vary by TEA1795 suffix and region. Our stock with data code 18+ is available now. For the latest status, contact Y-IC.

Not known to be near end-of-life for core SR applications; verify the exact suffix lifecycle.

Equivalent/alternative models (functional alternatives; not necessarily drop-in):

- NXP: TEA1791, TEA1792 (SR controllers for related topologies)

- Texas Instruments: UCC24610, UCC24612, UCC24624 (synchronous rectifier controllers)

- onsemi: NCP4305, NCP4306, NCP43080 (synchronous rectifier controllers)

- Renesas/IDT: RAA2230x ecosystem may pair with SR controllers; check compatibility

- Infineon: ICE family SR solutions; verify per topology

- Note: Always check pinout, thresholds, timing behavior, and topology support before substitution.

If you need a pin‑compatible or direct replacement, please contact our sales team via our website for detailed guidance.

Key Application Areas

Smartphone and tablet chargers (flyback adapters)

Set‑top boxes, streaming devices, media players

Small AC‑DC power modules and USB power adapters

LED driver power supplies using flyback topology

Appliances and industrial auxiliaries requiring efficient standby supplies

Networking gear, routers, and modems low‑power supplies

Datasheet

Our website hosts the most authoritative datasheet for TEA1795. We recommend downloading it from this page to confirm package, pinout, electrical limits, and application notes.

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