TEA1532AP/N1,112 NXP Semiconductors, TEA1532AP/N1,112 Datasheet - Page 11

IC PFC CONTROLLER CCM 8DIP

TEA1532AP/N1,112

Manufacturer Part Number
TEA1532AP/N1,112
Description
IC PFC CONTROLLER CCM 8DIP
Manufacturer
NXP Semiconductors
Series
GreenChip™ IIr
Datasheet

Specifications of TEA1532AP/N1,112

Mode
Continuous Conduction (CCM)
Frequency - Switching
63kHz
Current - Startup
1.2mA
Voltage - Supply
11 V ~ 20 V
Operating Temperature
-25°C ~ 70°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-3314-5
935278106112
TEA1532APN
Philips Semiconductors
9397 750 14319
Product data sheet
7.15 OverTemperature protection (OTP)
7.16 Soft start-up (pin SENSE)
When pin DEM is grounded (CCM), the brown-out protection is disabled. In this case the
duty cycle is limited to 0.7, so at low mains voltage the on-time is limited and therefore the
dissipation in the FET is limited.
The IC provides accurate OTP. The IC will stop switching when the junction temperature
exceeds the thermal shutdown temperature. When V
will be recharged to the V
will drop again to V
Operation only recommences when V
when V
To prevent transformer rattle at start-up or during hiccup, the transformer peak current is
slowly increased by the soft start function. This can be achieved by inserting a resistor
and a capacitor between pin SENSE (pin 6) and sense resistor R
source charges the capacitor to V
The start level and the time constant of the increasing primary current level can be
adjusted externally by changing the values of R
During the start-up phase, the charging current I
pin SENSE is below approximately 0.5 V. If the voltage on pin SENSE exceeds 0.5 V, the
soft start current source will start limiting current I
completely switched off; see
Since the soft start current I
will affect V
I
primary(max)
Fig 9. Soft start-up
=
R
ss
mains
C
CC
ss
=
is disconnected for a short period).
charging current level by a maximum of 60 A (typical).
V
----------------------------------------- -
ocp
UVLO
R
sense
Rev. 02 — 4 February 2005
I
ss
, etc.
0.5 V
start
R
ss
ss
Figure
level, however switching will not restart. Subsequently, V
TEA1532(A)P; TEA1532(A)T
is subtracted from pin V
sense
9.
start-up
CC
V
= I
ocp
I
ss
drops below a level of about 4.5 V (typically,
ss
6
SENSE
R
ss
ss
ss
ss
(about 0.5 V maximum).
and C
will flow as long as the voltage on
R
C
. At V
ss
ss
CC
CC
ss
drops to V
start
GreenChip II SMPS control IC
charging current, the R
.
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
mgu237
R
, the I
sense
sense
ss
UVLO
current source is
. An internal current
, capacitor C
ss
value
11 of 27
VCC
CC

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