tea1553t NXP Semiconductors, tea1553t Datasheet - Page 5

• Manufacturer Part Number: tea1553t
• Description: Tea1553t Greenchip Ii Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
7. Functional description
TEA1553T_1
Product data sheet
The TEA1553T is a controller for a compact flyback converter, with the IC situated on the
primary side. An auxiliary winding of the transformer provides demagnetization detection
and powers the IC after start-up.
The TEA1553T operates in multi modes, see
Fig 3. Basic application
V MAINS
(1) If a 600 V MOSFET is used, the DRAIN connection can be made directly to the Vin; a
center-tap from the transformer is not necessary.
Rev. 01 — 3 July 2007
10
11
12
13
14
15
16
9
VCC
n.c.
GND
VCC5V
LOCK
CTRL
CSTART
DEM
TEA1553T
OVPFCAP
VCOADJ
DRIVER
ISENSE
STDBY
DRAIN
HVS
HVS
R DEM
Figure
8
7
6
5
4
3
2
1
4.
GreenChip II SMPS control IC
POWER
MOSFET
R SENSE
TEA1553T
© NXP B.V. 2007. All rights reserved.
014aaa001
OUTPUT
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