AN11012 Datasheet PDF - NXP Semiconductors
Part Number | AN11012 | |
Description | Using the TEA1703 to reduce standby power | |
Manufacturers | NXP Semiconductors | |
Logo | ||
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Using the TEA1703 to reduce standby power
Rev. 1 — 30 March 2011
Application note
Document information
Info Content
Keywords
SMPS, TEA1703, TEA1738, TEA1753, standby power
Abstract
TEA1703 is a low power standby controller IC intended for use in SMPS
applications that require an extremely low no-load standby power. The
TEA1703 includes detection circuitry for output voltage, output power and
also switching detection circuitry. The TEA1703 integrates a switched
mode optocoupler driver which makes it possible to drive an optocoupler
with a high peak current, while keeping the required power low.
(NXP Semiconductors patent)
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NXP Semiconductors
AN11012
Using the TEA1703 to reduce standby power
5. Application diagram
Figure 1 shows the TEA1703 connections in a typical application.
fly 1
fly 2
R1 C3
47 Ω 220 pF
D1
STMS20M100ST
C1
680 μF
25 V
C2
680 μF
25 V
Vout
19.5 V
3.34 A
GND
D2
BAS21
R2
330 kΩ
C4
47 nF
R3
220 kΩ
R6
2.2 MΩ
R4
4.7 MΩ
R5
360 kΩ
C5
100 pF
1
U2-1
2
L1
10 mH
U1
VSENSE
8
PSENSE
7
SWDET
6
n.c.
5
TEA1703
VCC
1
GND
2
OPTO
3
n.c.
4
Fig 1. TEA1703 connections in a typical application
019aab497
AN11012
Application note
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 30 March 2011
© NXP B.V. 2011. All rights reserved.
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Information | Total 30 Pages | |
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