TEA1721AT Datasheet, PDF (14/14 Pages) NXP Semiconductors – Ultra-low standby SMPS controller with integrated power switch

NXP Semiconductors
TEA1721AT
Ultra-low standby SMPS controller with integrated power switch
13. Contents
1
1.1
1.2
1.3
1.4
2
3
3.1
4
4.1
4.2
5
5.1
5.2
5.3
5.4
5.3.1
5.3.2
5.3.3
6
7
8
9
10
11
11.1
11.2
11.3
11.4
12
Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . .1
General description . . . . . . . . . . . . . . . . . . . . . .1
Features and benefits . . . . . . . . . . . . . . . . . . . . .1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Quick reference data . . . . . . . . . . . . . . . . . . . . .2
Ordering information . . . . . . . . . . . . . . . . . . . . . .3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Pinning information . . . . . . . . . . . . . . . . . . . . . . .4
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . .4
Functional description . . . . . . . . . . . . . . . . . . . .4
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Primary sensing . . . . . . . . . . . . . . . . . . . . . . . . .4
Operating modes . . . . . . . . . . . . . . . . . . . . . . . .5
Jitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Constant Voltage with Burst mode (CVB). . . . . .5
Constant Voltage mode (CV) . . . . . . . . . . . . . . .5
Constant Current mode (CC) . . . . . . . . . . . . . . .6
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . .7
Thermal characteristics . . . . . . . . . . . . . . . . . . .7
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Package outline . . . . . . . . . . . . . . . . . . . . . . . . .10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . 11
Legal information. . . . . . . . . . . . . . . . . . . . . . . .12
Data sheet status . . . . . . . . . . . . . . . . . . . . . . .12
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Contact information. . . . . . . . . . . . . . . . . . . . . .13
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© 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: [e-mail]
Date of release: 24 January 2012
Document identifier: TEA1721AT