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TEA1998TS/1X

Description
FLYBACK SR
Categorysemiconductor    Power management   
File Size225KB,18 Pages
ManufacturerNXP
Websitehttps://www.nxp.com
Environmental Compliance
Download Datasheet Parametric Compare View All

TEA1998TS/1X Overview

FLYBACK SR

TEA1998TS/1X Parametric

Parameter NameAttribute value
applicationSecondary side controller, synchronous rectifier
Voltage - input-
Voltage - Power60V
Current - Power250µA
Operating temperature-40°C ~ 150°C
Installation typesurface mount
Package/casingSC-74,SOT-457
Supplier device packaging6-TSOP
TEA1998TS
GreenChip synchronous rectifier controller
Rev. 1 — 16 February 2017
Product data sheet
COMPANY PUBLIC
1
General description
The TEA1998TS is a member 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 TEA1998TS is a dedicated controller IC for synchronous rectification on the
secondary side of flyback converters. It incorporates the sensing stage and driver stage
for driving the SR MOSFET, which is rectifying the output of the secondary transformer
winding.
The TEA1998TS can generate its own supply voltage for battery charging applications
with low output voltage or for applications with high-side rectification.
The TEA1998TS 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
Typical supply current in no-load operation below 250 μA
2.2 Application features
Operates in an output voltage range between 10 V and 0 V
Drain sense pin capable of handling input voltages up to 60 V
Self-supplying for operation with low output voltage
Self-supplying for high-side rectification without the use of an auxiliary winding
Operates with standard and logic level SR MOSFETs
Supports USB BC, QuickCharge and smart charging applications
TSOP6 package
2.3 Control features
Adaptive gate drive for fast turn-off at the end of conduction
UnderVoltage LockOut (UVLO) with active gate pull-down

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