rectifier controller. TEA2095T Datasheet

TEA2095T controller. Datasheet pdf. Equivalent

TEA2095T Datasheet
Recommendation TEA2095T Datasheet
Part TEA2095T
Description GreenChip dual synchronous rectifier controller
Feature TEA2095T; TEA2095T GreenChip dual synchronous rectifier controller Rev. 1.1 — 10 April 2020 Product data sh.
Manufacture NXP
Datasheet
Download TEA2095T Datasheet




NXP TEA2095T
TEA2095T
GreenChip dual synchronous rectifier controller
Rev. 1.1 — 10 April 2020
Product data sheet
1 General description
The TEA2095T is a new synchronous rectifier (SR) controller IC for switched-mode
power supplies. It incorporates an adaptive gate drive method for maximum efficiency at
any load.
The TEA2095T 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 rectify the outputs of the central tap secondary transformer windings.
The two gate driver stages have their own sensing inputs and operate independently.
The TEA2095T is optimized for efficient operation with very low-ohmic MOSFETs and
switching at high frequencies.
The TEA2095T is fabricated in a silicon-on-insulator (SOI) process.
2 Features and benefits
2.1 Efficiency features
Adaptive gate drive for maximum efficiency at any load
Supply current in energy save operation of 90 μA
Regulation level of −25 mV for driving low-ohmic MOSFETs
2.2 Application features
Wide supply voltage range from 4.5 V to 38 V
Dual synchronous rectification for LLC resonant
Supports 5 V operation with logic level SR MOSFETs
Differential inputs for sensing the drain and source voltages of each SR MOSFET
SO8 package with exposed die pad
Discharge of the output capacitor after mains disconnect
2.3 Control features
SR control without minimum on-time
Adaptive gate drive for fast turn-off at the end of conduction
Undervoltage lockout (UVLO) protection with active gate pull-down
Interlock function to prevent simultaneous conduction of the external MOSFETs
Supports 1 MHz switching frequency



NXP TEA2095T
NXP Semiconductors
TEA2095T
GreenChip dual synchronous rectifier controller
3 Applications
The TEA2095T is intended for resonant power supplies. In such applications, it can drive
two external synchronous rectifier MOSFETs for the rectification of the voltages on the
two secondary windings of the transformer. These MOSFETs replace diodes. It can be
used in all power supplies requiring high efficiency:
Adapters
Power supplies for desktop PC and all-in-one PC
Power supplies for television
Power supplies for servers
4 Ordering information
Table 1. Ordering information
Type number
Package
Name
TEA2095T/1/S30 SO8
TEA2095T/1
SO8
Description
plastic small outline package; 8 leads; body width 3.9 mm
plastic small outline package; 8 leads; body width 3.9 mm
Bond-wire Version
Au SOT96-1
Cu SOT96-1
5 Marking
Table 2. Marking
Type number
TEA2095T/1
Marking code
TEA2095
TEA2095T
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 10 April 2020
© NXP B.V. 2020. All rights reserved.
2 / 19



NXP TEA2095T
NXP Semiconductors
6 Block diagram
TEA2095T
GreenChip dual synchronous rectifier controller
VCC
DSA
V AND I
REFERENCE
5V
REGULATOR
IC
ENERGY SAVE
CONTROL
UNDER
VOLTAGE
LOCKOUT
LOGIC
DRIVER
SUPPLY
discharge
11 V
enable
turn-on
on regulation
off regulation
TURN ON
SWITCH OFF
GDA
SSA
DSB
-400 mV
-25 mV
-20 mV
+150 mV
turn-on
on regulation
off regulation
INTERLOCK disable
TURN ON
SWITCH OFF
GDB
SSB
-400 mV
-25 mV
-20 mV
+150 mV
Figure 1. TEA2095T block diagram
GND
aaa-033026
TEA2095T
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 10 April 2020
© NXP B.V. 2020. All rights reserved.
3 / 19







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