TEA1532CT NXP Semiconductors, TEA1532CT Datasheet - Page 14

• Manufacturer Part Number: TEA1532CT
• Description: (TEA1532BT / TEA1532CT) GreenChip II SMPS control IC
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
Table 5.
TEA1532BT_TEA1532CT_1
Product data sheet
Symbol
Duty cycle control (pin CTRL)
V
V
V
Protection and timing input (pin PROTECT)
V
V
V
I
I
Valley switch (pin DRAIN)
( V/ t)
t
Overcurrent and winding short-circuit protection (pin SENSE)
V
t
t
I
Brown-out protection (pin DEM)
I
t
ch
dch
d(vrec-swon)
PD
leb
startup(soft)
prot(bo)
en(prot)bo
I
min( max)
max( min)
CTRL(detect)
trip
trip(latch)
VCC(latch)(reset)
sense(max)
sc
/ t
vrec
Characteristics
Parameter
minimum voltage
(maximum duty cycle)
maximum voltage
(minimum duty cycle)
slope compensation
current
detection voltage on pin
CTRL
trip voltage
latch trip voltage
latch reset voltage on
pin VCC
charge current
discharge current
valley recognition
voltage change with
time
valley recognition to
switch-on delay time
maximum sense
voltage
propagation delay
leading edge blanking
time
soft startup current
brownout protection
current
brownout protection
enable time
…continued
Conditions
V
V
V
A constant I
drawn from pin DEM.
V/ t = 0.1 V/ s
V/ t = 0.5 V/ s
PROTECT
CTRL
SENSE
Rev. 01 — 18 January 2007
< 0.63 V
< 0.5 V
< 2.3 V
prot(bo)
is
TEA1532BT; TEA1532CT
[1]
[2]
[3]
Min
-
-
0.56
2.37
2.85
-
-
-
0.48
-
330
45
1.5
1.2
57
43
68
GreenChip II SMPS control IC
Typ
1.0
1.5
0.63
2.5
3
4.5
100
-
150
0.52
140
400
60
2
1
50
60
Max
-
-
0.70
2.63
3.15
-
-
+43
-
0.56
185
470
75
2.5
© NXP B.V. 2007. All rights reserved.
0.8
43
52
Unit
V
V
V
V
V
V
nA
V/ s
ns
V
ns
ns
14 of 23
A/ s
A
A
A
s
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