tea1553t NXP Semiconductors, tea1553t Datasheet - Page 20

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

NXP Semiconductors
Table 5.
T
the IC, unless otherwise specified.
TEA1553T_1
Product data sheet
Symbol
V
V
V
Advanced overpower timing via pin CSTART (pin 15)
I
V
I
f
VCOadj input (pin 1)
I
Valley switch (pin 8)
( V/ t)
t
Current and short winding protection (pin 3)
V
t
V
t
I
Overvoltage protection (pin 16 and pin 2)
I
I
I
V
t
ch(CSTART)
opp(adv)
act(opp)(adv)
VCOADJ
d(vrec-swon)
PD
leb
startup(soft)
ovp
ch(OVPFCAP)
dch(OVPFCAP)
p(OVPFCAP)
amb
trip
VCC(latch)(reset)
LOCK
trip(CSTART)
sense(max)
swp
trip(OVPFCAP)
= 25 C; V
/V
vrec
VCC5V
Characteristics
CC
= 15 V; all voltages are measured with respect to ground (pin 11); currents are positive when flowing into
Parameter
trip voltage
latch reset voltage on
pin V
voltage on pin LOCK
to voltage on pin
VCC5V ratio
charge current on pin
CSTART
trip voltage on pin
CSTART
advanced over-power
protection current
advanced over-power
protection activation
frequency
current on pin
VCOADJ
valley recognition
voltage change with
time
valley recognition to
switch-on delay time
maximum sense
voltage
propagation delay
short-winding
protection voltage
leading edge blanking
time
soft startup current
over-voltage
protection current
charge current on pin
OVPFCAP
discharge current on
pin OVPFCAP
trip voltage on pin
OVPFCAP
pulse duration on pin
OVPFCAP
CC
…continued
Conditions
V
V
V
V
and
V
V
V
V
V/ t = 0.1 V/ s
V/ t = 0.5 V/ s
trip
trip
I
I
I
I
I
I
on pin SENSE < 0.1 V
on pin CTRL < 0.5 V
on pin CSTART > 2.5 V
on pin SENSE < 0.5 V
on pin OVPFCAP = 1 V
on pin OVPFCAP = 1 V
< 2.3 V
= 0.5
Rev. 01 — 3 July 2007
V
O( VCC5V)
[2]
[3]
[3]
Min
2.37
-
2.37
20
-
0.48
-
0.83
300
45
279
52
2.37
2.3
4
11.5
11.5
11.5
85
36
GreenChip II SMPS control IC
Typ
2.5
4.5
-
2.5
25
-
150
0.52
140
0.88
370
60
300
60
2.5
2.8
10
10
10
32
[1]
TEA1553T
Max
2.63
-
+4
2.63
33
+85
-
0.56
185
0.96
440
75
321
68
2.63
3.4
© NXP B.V. 2007. All rights reserved.
8.5
8.5
8.5
28
Unit
V
V
%
V
kHz
V/ s
ns
V
ns
V
ns
V
20 of 27
A
A
A
A
A
A
A
s