TEA1995T: GreenChip Synchronous Rectifier controller

The TEA1995T is the first product of a new generation of Synchronous Rectifier (SR) controller ICs for switched mode power supplies with adaptive gate drive for maximum efficiency at any load.

The TEA1995T is a dedicated controller IC for synchronous rectification on the secondary side of resonant converters. It has two driver stages for driving the SR MOSFETs which are rectifying the outputs of the secondary transformer windings. The two gate driver stages have their own sensing inputs and operate independently of each other.

The TEA1995T can also be used in multi-output flyback converters with the SR MOSFET placed at the low side.

The TEA1995T is fabricated in a Silicon On Insulator (SOI) process.

sot096-1_3d

Efficiency features:

  • Adaptive gate drive for maximum efficiency at any load
  • Supply current in no-load operation below 200 μA

Application features:

  • Very wide supply voltage range from 4.5 V to 38 V
  • Dual Synchronous Rectification for LLC resonant in SO8 package
  • Synchronous Rectification for multi-output flyback converters
  • Supports 5V operation with logic level SR MOSFETS
  • Differential inputs for sensing the drain and source voltage of each SR MOSFET

Control features:

  • SR control without minimum on-time
  • Adaptive gate drive for fast turn-off at the end of conduction
  • Under voltage lock out with active gate pull-down

The TEA1995T is intended for resonant power supplies. In such applications, it can drive two external Synchronous Rectifier MOSFETs which replace diodes for the rectification of the voltages on the two secondary windings of the transformer. It can be used in all power supplies needing high efficiency, like:

  • Adapters
  • Power supplies for desktop PC and all-in-one PC
  • Power supplies for television
  • Power supplies for servers
Data Sheets (1)
Name/DescriptionModified Date
GreenChip dual synchronous rectifier controller (REV 1.0) PDF (184.0 kB) TEA1995T30 Jul 2015
Users Guides (2)
Name/DescriptionModified Date
GreenChip TEA1995DB1294 synchronous rectifier controller demo board (REV 1.0) PDF (257.0 kB) UM1089116 Jul 2015
GreenChip TEA1995DB1295 synchronous rectifier controller demo board (REV 1.0) PDF (248.0 kB) UM1089208 Jul 2015
Brochures (1)
Name/DescriptionModified Date
NXP® GreenChip ICs TEA1916 and TEA1995 (REV 1.0) PDF (850 B) 7501764412 Mar 2015
Package Information (1)
Name/DescriptionModified Date
plastic small outline package; 8 leads; body width 3.9 mm (REV 1.0) PDF (244.0 kB) SOT96-108 Feb 2016
Packing (1)
Name/DescriptionModified Date
SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (232.0 kB) SOT96-1_11819 Apr 2013
Supporting Information (3)
Name/DescriptionModified Date
Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE30 Sep 2013
Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW08 Oct 2009
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE08 Oct 2009
Ordering Information
ProductStatusPackage versionPackage nameTopologyFeedback control integratedMinimum SR active time (μs)Driver activation voltage (mV)Driver regulation voltage (mV)Driver deactivation voltage (mV)Driver activation delay time (ns)
TEA1995T/1ActiveSO8
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateMSLMSL LF
TEA1995T/1SOT96-1SO-SOJ-REFLOW SO-SOJ-WAVE
SO-SOJ-REFLOW SO-SOJ-WAVE
Reel 13" Q1/T1ActiveTEA1995T/1J (9353 046 03118)Standard MarkingTEA1995T/1Always Pb-free11
GreenChip dual synchronous rectifier controller TEA1995T
GreenChip TEA1995DB1294 synchronous rectifier controller demo board TEA1995T
GreenChip TEA1995DB1295 synchronous rectifier controller demo board TEA1995T
NXP® GreenChip ICs TEA1916 and TEA1995 TEA1995T
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
plastic small outline package; 8 leads; body width 3.9 mm CBT3306_Q100
Footprint for reflow soldering NPIC6C596A_Q100
Footprint for wave soldering NPIC6C596A_Q100
SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... CBT3306_Q100
SA612A