TEA1532
Philips Semiconductors
GreenChip II SMPS control IC
6. Pinning information
6.1 Pinning
1
2
3
4
8
7
6
5
V
DRAIN
DRIVER
SENSE
DEM
1
2
3
4
8
7
6
5
V
DRAIN
DRIVER
SENSE
DEM
CC
CC
GND
PROTECT
CTRL
GND
PROTECT
CTRL
TEA1532T
TEA1532P
001aaa829
001aaa828
Fig 2. Pin configuration: TEA1532T (SOT96-1).
Fig 3. Pin configuration: TEA1532P (SOT97-1).
6.2 Pin description
Table 2:
Symbol
VCC
Pin description
Pin
1
Description
supply voltage
GND
2
ground
PROTECT
CTRL
3
protection and timing input
control input
4
DEM
5
input from auxiliary winding for demagnetization timing
programmable current sense input
MOSFET Gate driver output
SENSE
DRIVER
DRAIN
6
7
8
connected to drain of external MOS switch, input for start-up
current compensation and valley sensing
7. Functional description
The TEA1532 is the controller of a compact flyback converter, with the IC situated at the
primary side. An auxiliary winding of the transformer provides demagnetization detection
and powers the IC after start-up; see Figure 4.
9397 750 13113
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet
Rev. 01 — 28 May 2004
4 of 27
NXP [ NXP ]
