TEA1750 NXP Semiconductors, TEA1750 Datasheet - Page 23

• Manufacturer Part Number: TEA1750
• Description: GreenChip III SMPS control IC
• Manufacturer: NXP Semiconductors

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NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1750_2
Product data sheet
Symbol
Peak current control flyback (pin FBCTRL)
V
V
R
I
I
Valley switching flyback (pin HV)
( V/ t)
t
Soft start flyback (pin FBSENSE)
I
V
R
Overcurrent protection flyback (pin FBSENSE)
V
t
Driver (pin FBDRIVER)
I
I
V
Latch input (pin LATCH)
V
I
V
V
V
O(FBCTRL)
to(FBCTRL)
d(vrec-swon)
start(soft)fb
leb(fb)
src(FBDRIVER)
sink(FBDRIVER)
O(LATCH)
amb
FBCTRL
to(FBCTRL)
start(soft)fb
sense(fb)max
O(FBDRIVER)(max)
prot(LATCH)
en(LATCH)
hys(LATCH)
oc(LATCH)
int(FBCTRL)
start(soft)fb
= 25 C; V
vrec(fb)
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
voltage on pin FBCTRL
time-out voltage on pin
FBCTRL
internal resistance on pin
FBCTRL
output current on pin FBCTRL V
time-out current on pin
FBCTRL
flyback valley recognition
voltage change with time
valley recognition to switch-on
delay time
flyback soft start current
flyback soft start voltage
flyback soft start resistance
maximum flyback sense
voltage
flyback leading edge blanking
time
source current on pin
FBDRIVER
sink current on pin FBDRIVER V
maximum output voltage on
pin FBDRIVER
protection voltage on pin
LATCH
output current on pin LATCH
enable voltage on pin LATCH
hysteresis voltage on pin
LATCH
open-circuit voltage on pin
LATCH
…continued
Rev. 02 — 15 December 2008
Conditions
for maximum flyback peak
current
enable voltage
trip voltage
V
V
V
V
V
V
at start-up
V
V/ t = 50 mV/ s
V/ t = 200 mV/ s
FBCTRL
FBCTRL
FBCTRL
FBCTRL
FBDRIVER
FBDRIVER
FBDRIVER
prot(LATCH)
en(LATCH)
= 0 V
= 2 V
= 2.6 V
= 4.1 V
= 2 V
= 2 V
= 10 V
< V
V
prot(LATCH)
LATCH
< V
oc(LATCH)
GreenChip III SMPS control IC
[5]
Min
1.85
-
4.2
-
-
0.43
12
0.49
0.52
255
-
-
-
-
1.23
1.30
80
-
1.4
0.6
36
34.5
75
75
85
Typ
2.0
2.5
4.5
3
-
150
0.49
-
0.52
0.55
305
0.7
1.2
11
1.25
1.35
100
2.9
1.17
0.5
30
28.5
60
0.5
80
TEA1750
© NXP B.V. 2008. All rights reserved.
Max
2.15
-
4.8
-
+75
-
0.54
-
0.55
0.58
355
-
-
-
12
1.27
1.40
140
-
0.93 mA
0.4
24
22.5
45
75
23 of 29
Unit
V
V
V
k
mA
V/ s
ns
V
k
V
V
ns
A
A
A
V
V
V
mV
V
A
A
A
A