TEA1532 Philips Semiconductors, TEA1532 Datasheet - Page 14

• Manufacturer Part Number: TEA1532
• Description: GreenChip SMPS control IC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 5:
T
the IC; unless otherwise specified.
9397 750 13113
Preliminary data sheet
Symbol
Oscillator
f
Duty cycle control (pin CTRL)
V
V
V
Protection and timing input (pin PROTECT)
V
V
V
I
I
Valley switch (pin DRAIN)
t
Overcurrent and winding short-circuit protection (pin SENSE)
V
t
t
I
Brown-out protection (pin DEM)
I
t
Driver (pin DRIVER)
I
I
V
osc
charge
discharge
valley-swon
PD
leb
ss
brown-out
on(min)(brown-out)
source
sink
amb
I
V/ t
min
max
CTRL(detect)
trip
trip(latch)
CC(latch)(reset)
sense(max)
o(max)
slopecomp
= 25 C; V
valley
/ t
Characteristics
CC
= 15 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
oscillator frequency (fixed
frequency)
minimum voltage for maximum
duty cycle
maximum voltage for minimum
duty cycle
slope compensation current
Control detect level
trip level
trip level for latch
voltage level on pin V
resets the latch
charge current
discharge current
valley recognition voltage
change
delay from valley recognition to
switch-on
maximum source voltage for
OCP
propagation delay from
detecting V
switch-off
blanking time for current and
winding short-circuit protection
soft start current
brown-out protection current
minimum on-time for enabling
the brown-out protection.
source current
sink current
maximum output voltage
…continued
sense(max)
to
CC
which
Rev. 01 — 28 May 2004
Conditions
V
V
V
V
A constant I
from pin DEM.
V
V
V
V/ t = 0.1 V/ s
V/ t = 0.5 V/ s
CTRL
CC(latch)
CTRL
sense
CC
CC
CC
V
V
DRIVER
DRIVER
= 9.5 V; V
= 9.5 V;
> 12 V
< 1 V
< 0.63 V
< 0.5 V
< 2.3 V
= 2 V
= 9.5 V
(brown-out)
DRIVER
is drawn
= 2 V
GreenChip II SMPS control IC
[1]
[2]
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Min
50
-
-
0.56
2.37
2.85
-
-
-
0.48
-
330
45
1.5
-
-
400
-
1.2
57
43
68
Typ
63
1.0
1.5
0.63
2.5
3
4.5
100
-
150
0.52
140
400
60
2
300
700
11.5
1
50
60
170
TEA1532
Max
75
-
-
0.70
2.63
3.15
-
-
+43
-
0.56
185
470
75
2.5
-
-
12
0.8
43
52
88
14 of 27
Unit
kHz
V
V
V
V
V
V
nA
V/ s
ns
V
ns
ns
mA
mA
mA
V
A/ s
A
A
A
s