tea1750t-n1 NXP Semiconductors, tea1750t-n1 Datasheet - Page 21

• Manufacturer Part Number: tea1750t-n1
• Description: Tea1750 Greenchip Iii Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1750_1
Product data sheet
Symbol
Output voltage sensing PFC (pin VOSENSE)
V
V
V
V
V
V
V
I
Overcurrent protection PFC (pin PFCSENSE)
V
t
I
Soft start, soft stop PFC (pin PFCSENSE)
I
V
V
R
Oscillator PFC
f
t
Valley switching PFC (pin PFCAUX)
( V/ t)
t
t
I(VOSENSE)
leb(PFC)
prot(PFCSENSE)
start(soft)PFC
sw(PFC)max
off(PFC)min
vrec(PFC)
to(vrec)PFC
amb
th(ol)(VOSENSE)
start(fb)
stop(fb)
burst(L)
burst(H)
reg(VOSENSE)
ovp(VOSENSE)
sense(PFC)max
start(soft)PFC
stop(soft)PFC
start(soft)PFC
= 25 C; V
vrec(PFC)
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
open-loop threshold voltage on
pin VOSENSE
flyback start voltage
flyback stop voltage
LOW-level burst mode voltage
HIGH-level burst mode voltage
regulation voltage on pin
VOSENSE
overvoltage protection voltage
on pin VOSENSE
input current on pin VOSENSE
maximum PFC sense voltage
PFC leading edge blanking time
protection current on pin
PFCSENSE
PFC soft start current
PFC soft start voltage
PFC soft stop voltage
PFC soft start resistance
maximum PFC switching
frequency
minimum PFC off-time
PFC valley recognition voltage
change with time
PFC valley recognition time
PFC valley recognition time-out
time
…continued
Rev. 01 — 6 April 2007
Conditions
I
V
V
demagnetization to V/ t = 0
O(PFCCOMP)
VOSENSE
V/ t = 50 mV/ s
V/ t = 200 mV/ s
PFCAUX
= 1 V peak-peak
= 2.5 V
= 0
[2]
[3]
[4]
GreenChip III SMPS control IC
Min
0.35
-
1.55
1.87
2.19
2.475 2.500 2.525 V
2.60
5
0.49
0.51
250
0.46
0.42
12
100
1.1
-
-
-
3
50
75
Typ
0.40
1.72
1.60
1.92
2.24
2.63
45
0.52
0.54
310
-
0.50
0.45
-
125
1.4
-
-
-
4
60
TEA1750
© NXP B.V. 2007. All rights reserved.
Max
0.45
-
1.65
1.97
2.29
2.67
100
0.55
0.57
370
0.54
0.48
-
150
1.7
1.7
300
50
6
5
45
21 of 29
Unit
V
V
V
V
V
V
nA
V
V
ns
nA
V
V
k
kHz
V/ s
ns
ns
A
s
s