NXP TEA1522 User Manual
NXP SMPS controller
IC TEA1522
demonstration board
Cut costs and size for efficient
low-power supplies
Discover how you can reduce costs, improve efficiency and shrink footprint for your low-power
switched-mode power supply (SMPS) with our STARplug TEA1522 demonstration board.
Designed for applications requiring universal mains input and 5 V output, it is particularly useful
for USB charger applications. Numerous energy-saving and protection features enable efficient,
robust and attractive slim-line power plugs.
TEA1522 key features
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Optimized for SMPS flyback operation
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Integrated 650 V MOSFET power switch
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Operates directly from rectified mains supply
(80 to 276 V AC)
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Valley switching
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High voltage start-up
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Frequency reduction at low output power
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Switching can be stopped (0% duty cycle)
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Numerous built-in protections for robust design
Key benefits
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High efficiency
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Low standby power (< 100 mW)
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Low EMI
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Cost efficient
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Small footprint
Key applications
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USB charger
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Small power supplies
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White goods
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Small personal care equipment
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Chargers for portable equipment
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Coffee machines
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Security camera
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General domestic appliances
Our STARplug TEA1522 demo board is the perfect
100 kΩ
R7
10 kΩ
0603
R8
4.7 kΩ
0603
R3
1 kΩ
0603
R4
3.48 kΩ
0603
R5
3.16 kΩ
0603
R2
68 Ω
R9
1.5 Ω
R6
560 kΩ
C6
330 pF
0603
C7
3.3 nF
0603
R1
3.6 kΩ
0603
R10
C4
U1
V
CC
GND
RC
REG
8
7
6
5
DRAIN
n.c.
SOURCE
AUX
1
2
1
2
3
4
U2:2
817B
D7
UF4006
D5
1N5822
D6
1N3595
10 nF
C10
X1
5
4
3
2
1
9
10
8
6
7
2.2 nF
Y cap
C2
4.7 µF
(400 V)
C3
4.7 µF
(400 V)
C5
1 µF
0805
C1
47 nF
0603
J3
2PIN
CONN
U2:1
1
U3
C25
22 µF
C9
470 µF
C11
100 µF
1N4007
D1
J1
1 2
2 1
2 1
1 2
1
2
2
1
2
1
2
1
2
1
3
4
1
2
2
3
2
1
J2
D2
D4 D3
L2
1000 µH
1 A
(250 V)
F1
L3
22 µH
L2
1000 µH
starting-point for creating compact, low-cost and highly
efficient power supplies. Addressing applications that require
universal mains input and 5 V output, the board is designed for
outputs up to 1.2 A. It features secondary-side regulation with
an opto coupler to ensure an extremely stable output.
For further space savings, it includes an integrated
high-voltage power switch, start-up circuit and numerous
protection features. These include cycle by cycle adjustable
over current protection and under voltage lock-out along
with over voltage, over temperature, short winding and
demagnetization protection.
At the heart of the board is our low-power SMPS controller
TEA1522, which operates directly from rectified universal
mains. This IC is manufactured using a combination of our
high-voltage EZ-HV and low-voltage BiCMOS processes,
enabling a highly compact and cost-effective solution.
In addition, ‘green’ features such as valley switching and
frequency reduction ensure maximum efficiency in any
operating conditions.
SMPS controller ICs for low-power systems
Type number Package R
DS(on)
(Ω)
TEA1520T/N2 SO-14 48 2 – 5 W Mobile adapter/standby supply
TEA1520P/N2 DIP-8 48 2 – 5 W Mobile adapter/standby supply
TEA1521T/N2 SO-14 24 3 – 7 W Mobile adapter/standby supply
TEA1521P/N2 DIP-8 24 3 – 7 W Mobile adapter/standby supply
TEA1522T/N2 SO-14 12 7 – 9 W Mobile adapter/standby supply
TEA1522P/N2 DIP-8 12 7 – 9 W VCD
TEA1523P/N2 DIP-8 6.5 9 – 12 W DVD
TEA1620P/N1 DIP-8 48 2 – 5 W Standby supply
TEA1622P/N1 DIP-8 12 7 – 9 W VCD
TEA1623P/N1 DIP-8 6.5 9 – 12 W DVD
TEA1623PH/N1 HDIP-16 6.5 9 – 25 W DVD-R/RW
Max. output power Application example
Circuit diagram
www.nxp.com
© 2007 NXP B.V.
All rights reser ved. Reproduc tion i n who le or in part is p rohibited witho ut the prio r wri tten consent of t he co pyright owner.
The informat ion pre sented in thi s docu ment d oes not form part of an y quota tion o r contr act, is beli eved to be accurate and
reliab le an d may be change d wi thout notice. No liabilit y wi ll be acce pted by th e pu blisher for any conseque nce of it s us e.
Public ation there of does not conv ey nor imply any l icense unde r patent- or othe r industri al or intellec tual proper ty right s.
Date of rel ease: Sepete mber 2007
Docum ent order num ber: 9397 750 16160
Printe d in the Nether lands
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