tea1753lt NXP Semiconductors, tea1753lt Datasheet - Page 24

• Manufacturer Part Number: tea1753lt
• Description: Tea1753lt Greenchip Iii Smps Control Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 5.
T
the IC; unless otherwise specified.
TEA1753LT
Objective data sheet
Symbol
Demagnetization management flyback (pin FBAUX)
V
I
V
t
Pulse width modulator flyback
t
t
Oscillator flyback
f
V
f
f
V
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
prot(FBAUX)
sup(xfmr_ring)
on(fb)min
on(fb)max
sw(fb)max
sw(fb)swon(PFC)
sw(fb)swoff(PFC)
O(FBCTRL)
to(FBCTRL)
d(vrec-swon)
start(soft)fb
amb
th(comp)FBAUX
clamp(FBAUX)
start(VCO)FBCTRL
FBCTRL
to(FBCTRL)
start(soft)fb
int(FBCTRL)
start(soft)fb
VCO(FBCTRL)
= 25
vrec(fb)

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 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
PFC switch-on flyback
switching frequency
PFC switch-off flyback
switching frequency
VCO voltage difference on pin
FBCTRL
voltage on pin FBCTRL
time-out voltage on pin
FBCTRL
internal resistance on pin
FBCTRL
output current on pin FBCTRL
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
…continued
All information provided in this document is subject to legal disclaimers.
Rev. 01 — 4 March 2011
Conditions
V
I
I
for maximum flyback peak current
enable voltage
trip voltage
V
V
V
V
enable voltage
FBAUX
FBAUX
FBAUX
FBCTRL
FBCTRL
FBCTRL
FBCTRL
= 100 A
= 300 A
= 50 mV
= 0 V
= 2 V
= 2.6 V
= 4.1 V
GreenChip III SMPS control IC
[2]
1.85
Min
60
75
0.85 0.7
0.79
1.5
-
32
100
1.3
-
-
-
-
4.2
-
1.4
0.6
36
34.5 28.5 22.5 A
75
-
75
0.55
8
TEA1753LT
Typ
80
-
0.94
2
t
40
125
1.5
86
48
-0.2
2.0
2.5
4.5
3
1.19 0.93 mA
0.5
30
-
150
60
0.63
-
leb
© NXP B.V. 2011. All rights reserved.
Max
110
5
0.55 V
1.09
2.5
-
48
150
1.7
-
-
-
2.15
-
4.8
-
0.4
24
+75
-
45
0.70
-
Unit
mV
nA
V
s
ns
s
kHz
kHz
kHz
V
V
V
k
mA
A
V/s
ns
A
24 of 31
V
V
V
k