TEA1721FT All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Product data sheet Rev. 1.1 — 7 June 2012 13 of 14
NXP Semiconductors
TEA1721FT
HV start-up flyback controller with integrated MOSFET for 5 W
Terms and conditions of commercial sale — NXP Semiconductors
products are sold subject to the general terms and conditions of commercial
sale, as published athttp://www.nxp.com/profile/terms
, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein may
be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific NXP Semiconductors product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor tested
in accordance with automotive testing or application requirements. NXP
Semiconductors accepts no liability for inclusion and/or use of
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
NXP Semiconductors’ specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies NXP Semiconductors for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
11.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
Adelante,Bitport,Bitsound,CoolFlux,CoReUse,DESFire,EZ-HV,FabKey,G
reenChip,HiPerSmart,HITAG,I²C-bus
logo,ICODE,I-CODE,ITEC,Labelution,MIFARE,MIFARE Plus,MIFARE
Ultralight,MoReUse,QLPAK,Silicon
Tuner,SiliconMAX,SmartXA,STARplug,TOPFET,TrenchMOS,TriMedia
andUCODE — are trademarks of NXP B.V.
HD Radio andHD Radio logo — are trademarks of iBiquity Digital
Corporation.
12. Contact information
For more information, please visit:http://www.nxp.com
For sales office addresses, please send an email to:salesaddresses@nxp.com
NXP Semiconductors
TEA1721FT
HV start-up flyback controller with integrated MOSFET for 5 W
© NXP B.V. 2012. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 7 June 2012
Document identifier: TEA1721FT
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
13. Contents
1 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1 General description . . . . . . . . . . . . . . . . . . . . . .1
1.2 Features and benefits. . . . . . . . . . . . . . . . . . . . .1
1.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.4 Quick reference data . . . . . . . . . . . . . . . . . . . . .2
2 Ordering information. . . . . . . . . . . . . . . . . . . . . .3
3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3.1 Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . .3
4 Pinning information. . . . . . . . . . . . . . . . . . . . . . .4
4.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
4.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . .4
5 Functional description . . . . . . . . . . . . . . . . . . . .4
5.1 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
5.2 Primary sensing . . . . . . . . . . . . . . . . . . . . . . . . .4
5.3 Operating modes . . . . . . . . . . . . . . . . . . . . . . . .5
5.4 Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
5.3.1 Constant Voltage with Burst mode (CVB). . . . . .5
5.3.2 Constant Voltage mode (CV) . . . . . . . . . . . . . . .5
5.3.3 Constant Current mode (CC) . . . . . . . . . . . . . . .6
6 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . .7
7 Thermal characteristics . . . . . . . . . . . . . . . . . . .7
8 Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . .8
9 Package outline . . . . . . . . . . . . . . . . . . . . . . . . .10
10 Revision history. . . . . . . . . . . . . . . . . . . . . . . . .11
11 Legal information. . . . . . . . . . . . . . . . . . . . . . . .12
11.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . .12
11.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
11.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . .12
11.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . .13
12 Contact information. . . . . . . . . . . . . . . . . . . . . .13

TEA1721FT/N1,118

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
Switching Controllers 15-19V 53KHz 78%
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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