tea1751lt NXP Semiconductors, tea1751lt Datasheet - Page 21

• Manufacturer Part Number: tea1751lt
• Description: Greenchip Iii Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1751T_LT_1
Product data sheet
Symbol
V
V
V
I
I
I
Input Voltage Sensing PFC (pin VINSENSE)
V
V
I
V
V
V
I
V
Loop compensation PFC (pin PFCCOMP)
g
I
V
V
V
Pulse width modulator PFC
t
ch(low)
ch(high)
CC(oper)
pu(VINSENSE)
I(VINSENSE)
O(PFCCOMP)
on(PFC)
amb
m
V
th(UVLO)
start(hys)
hys
stop(VINSENSE)
start(VINSENSE)
mvc(VINSENSE)max
flr
flr(hys)
bst(dual)
clamp(PFCCOMP)
ton(PFCCOMP)zero
ton(PFCCOMP)max
pu(VINSENSE)
= 25 C; V
Characteristics
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
Parameter
undervoltage lockout threshold
voltage
hysteresis of start voltage
hysteresis voltage
low charging current
high charging current
operating supply current
stop voltage on pin VINSENSE
start voltage on pin VINSENSE
pull-up voltage difference on
pin VINSENSE
pull-up current on pin
VINSENSE
maximum mains voltage
compensation voltage on pin
VINSENSE
fast latch reset voltage
hysteresis of fast latch reset
voltage
input current on pin VINSENSE V
dual boost voltage
transconductance
output current on pin
PFCCOMP
clamp voltage on pin
PFCCOMP
zero on-time voltage on pin
PFCCOMP
maximum on-time voltage on
pin PFCCOMP
PFC on-time
…continued
Rev. 01 — 10 July 2008
Conditions
during start-up phase
V
V
V
V
no load on pin FBDRIVER and
PFCDRIVER
active after V
detected
active after V
detected
active after V
V
current switch-over point
switch-over region
V
V
V
Low power mode; PFC off; lower
clamp voltage
Upper clamp voltage
V
V
V
V
startup
HV
th(UVLO)
HV
VINSENSE
start(VINSENSE)
VOSENSE
VOSENSE
VOSENSE
VINSENSE
PFCCOMP
VINSENSE
PFCCOMP
80 V; V
80 V; V
V
to I
th(UVLO)
V
3.3 V
2.0 V
V
V
CC
V
3.3 V;
0.9 V;
stop(VINSENSE)
stop(VINSENSE)
th(UVLO)
O(PFCCOMP)
CC
trip
ton(PFCCOMP)max
ton(PFCCOMP)max
stop(VINSENSE)
is detected
TEA1751T; TEA1751LT
V
V
V
startup
CC
trip
is detected
or
V
th(UVLO)
is
is
after
[1]
[1]
GreenChip III SMPS control IC
Min
14
-
6.3
2.25
0.86
1.11
-
4.0
-
-
5
-
-
60
33
2.5
-
3.4
1.20
3.6
30
1.2
4.6
55
45
Typ
15
300
7
3
0.89
1.15
-
0.75
0.12
33
2.2
200
80
39
2.7
3.9
3.5
1.25
4.5
40
1.0
5.4
100
47
39
© NXP B.V. 2008. All rights reserved.
Max
16
-
7.7
3.75
0.92
1.19
-
-
-
-
100
-
-
100
45
2.9
-
3.6
1.30
5.0
53
0.8
6.3
40
33
21 of 29
Unit
V
mV
V
mA
mA
mA
V
V
mV
V
V
V
nA
V
mV
V
V
V
V
A
A/V
A
A
s
s