TEA1750 NXP Semiconductors, TEA1750 Datasheet - Page 22

• 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
Demagnetization management PFC (pin PFCAUX)
V
t
I
Driver (pin PFCDRIVER)
I
I
V
Overvoltage protection flyback (pin FBAUX)
I
N
Demagnetization management flyback (pin FBAUX)
V
I
V
t
Pulse width modulator flyback
t
t
Oscillator flyback
f
V
V
to(demag)PFC
prot(PFCAUX)
src(PFCDRIVER)
sink(PFCDRIVER)
ovp(FBAUX)
prot(FBAUX)
sup(xfmr_ring)
on(fb)min
on(fb)max
sw(fb)max
amb
th(comp)PFCAUX
O(PFCDRIVER)max
th(comp)FBAUX
clamp(FBAUX)
start(VCO)FBCTRL
hys(FBCTRL)
V
cy(ovp)
VCO(FBCTRL)
= 25 C; V
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
comparator threshold voltage
on pin PFCAUX
PFC demagnetization time-out
time
protection current on pin
PFCAUX
source current on pin
PFCDRIVER
sink current on pin
PFCDRIVER
maximum output voltage on
pin PFCDRIVER
overvoltage protection current
on pin FBAUX
number of overvoltage
protection cycles
comparator threshold voltage
on pin FBAUX
protection current on pin
FBAUX
clamp voltage on pin FBAUX
transformer ringing
suppression time
minimum flyback on-time
maximum flyback on-time
maximum flyback switching
frequency
VCO start voltage on pin
FBCTRL
hysteresis voltage on pin
FBCTRL
VCO voltage difference on pin
FBCTRL
…continued
Rev. 02 — 15 December 2008
Conditions
V
V
V
V
V
I
I
FBAUX
FBAUX
PFCAUX
PFCDRIVER
PFCDRIVER
PFCDRIVER
FBAUX
= 500 A
= 500 A
= 50 mV
= 50 mV
= 2 V
= 2 V
= 10 V
GreenChip III SMPS control IC
Min
40
-
-
-
-
279
6
60
0.5
1.5
-
20
100
1.3
-
-
150
75
50
1.0
Typ
50
-
0.7
1.2
11
300
8
80
-
0.7
2
t
25
125
1.5
60
leb(fb)
100
0.5
0.8
0.1
TEA1750
© NXP B.V. 2008. All rights reserved.
Max
60
-
-
-
12
321
12
110
0.9
2.5
-
30
150
1.7
-
-
50
5
5
0.6
22 of 29
Unit
mV
nA
A
A
A
V
mV
nA
V
V
ns
kHz
V
mV
V
s
A
s
s