TEA1755T All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 1.1 — 13 March 2015 22 of 35
NXP Semiconductors
TEA1755T
HV start-up DCM/QR flyback controller with integrated DCM/QR PFC
controller
9. Thermal characteristics
10. Characteristics
Table 4. Thermal characteristics
Symbol Parameter Conditions Typ Unit
R
th(j-a)
thermal resistance from junction to ambient in free air; JEDEC test board 127 K/W
R
th(j-c)
thermal resistance from junction to case in free air; JEDEC test board 36 K/W
Table 5. Characteristics
T
amb
=25
C; V
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
Start-up current source (HV pin)
I
HV
current on pin HV V
HV
>75V
V
CC
<V
trip
0.9 1.1 1.3 mA
V
th(UVLO)
<V
CC
<V
startup
0.8 1 1.2 mA
V
trip
<V
CC
<V
th(UVLO)
45 6mA
with auxiliary supply - - 1.5 A
in Power-down mode; V
CC
= 0 V 5 12 25 A
V
BR
breakdown voltage 650 - - V
Supply voltage management (V
CC
pin)
V
trip
trip voltage 0.5 0.6 0.7 V
V
startup
start-up voltage 21.3 22.3 23.3 V
V
th(UVLO)
undervoltage lockout
threshold voltage
12.4 13.4 14.4 V
V
hys
hysteresis voltage V
startup
V
th(UVLO)
8.3 8.9 9.5 V
V
prot(UVLO)
undervoltage lockout
protection voltage
-V
th(UVLO)
+0.8
-V
I
ch(low)
low charging current V
HV
>75V
V
CC
<V
trip
1.15 1 0.85 mA
V
th(UVLO)
<V
CC
<V
startup
1.05 0.9 0.75 mA
I
ch(high)
high charging current V
HV
>75V; V
trip
<V
CC
<V
th(UVLO)
5.8 4.9 4mA
I
CC(oper)
operating supply
current
no-load on pins FBDRIVER and
PFCDRIVER; V
FBCTRL
=5V;
f
FB
=f
PFC
= 100 kHz; =30%
2.45 2.7 2.95 mA
IC in burst mode; no-load on pins
FBDRIVER and PFCDRIVER;
flyback switching; V
FBCTRL
=1.6V;
V
PFCSENSE
=0V
1.75 1.95 2.15 mA
IC in burst mode; flyback not
switching; V
FBCTRL
=0V;
V
PFCSENSE
=0V
1.24 1.35 1.46 mA
I
CC(prot)
protection supply
current
time-out protection triggered;
V
HV
=0V
0.3 0.45 0.6 mA
TEA1755T All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 1.1 — 13 March 2015 23 of 35
NXP Semiconductors
TEA1755T
HV start-up DCM/QR flyback controller with integrated DCM/QR PFC
controller
I
CC(pd)
power-down mode
supply current
IC in power-down mode; V
HV
= 0 V 0.3 0.45 0.6 mA
Input voltage sensing PFC (VINSENSE pin)
V
stop(VINSENSE)
stop voltage on pin
VINSENSE
0.86 0.89 0.92 V
V
start(VINSENSE)
start voltage on pin
VINSENSE
1.12 1.16 1.20 V
V
flr
fast latch reset voltage active after V
th(UVLO)
is detected 0.6 0.75 0.9 V
V
flr(hys)
hysteresis of fast latch
reset voltage
60 110 160 mV
I
I(VINSENSE)
input current on pin
VINSENSE
V
VINSENSE
>V
stop(VINSENSE)
after
V
start(VINSENSE)
is detected
520 50nA
V
bst(dual)
dual boost voltage high level 2.08 2.28 2.48 V
low level 1.88 2.08 2.28 V
switch-over region 120 200 280 mV
V
th(sel)clmp
clamp select threshold
voltage
on pin VINSENSE 1.9 2 2.1 V
V
th(sel)clmp(hys)
clamp select threshold
voltage hysteresis
60 100 140 mV
V
th(pd)
power-down threshold
voltage
285 385 485 mV
V
th(pd)exit
exit power-down
threshold voltage
V
CC
= 0 V 335 460 585 mV
V
hys(pd)
power-down
hysteresis voltage
45 75 105 mV
Loop compensation PFC (PFCCOMP pin)
g
m
transconductance V
VOSENSE
to I
O(PFCCOMP)
57 77 97 A/V
I
O(PFCCOMP)
output current on pin
PFCCOMP
V
VOSENSE
= 2 V; V
PFCCOMP
= 2.75 V 30 37 44 A
V
VOSENSE
= 3.3 V;
V
PFCCOMP
=2.75V
108 88 68 A
I
en(PFCCOMP)
enable current on pin
PFCCOMP
- 55 - A
V
clamp(PFCCOMP)
clamp voltage on pin
PFCCOMP
low-power mode; PFC off; lower
clamp voltage.
[1]
VINSENSE V
th(sel)clmp
+
V
th(sel)clmp(hys)
on pin VINSENSE;
V
VOSENSE
=2V
[2]
3.2 3.32 3.44 V
VINSENSE < V
th(sel)clmp
on pin
VINSENSE; V
VOSENSE
=2V
[2]
1.8 1.92 2.04 V
upper clamp voltage 3.6 3.75 3.9 V
high-power mode; PFC on;
uni-directional source clamp;
I
PFCCOMP
= 30 A;
V
VOSENSE
=2.5V
1.9 2 2.1 V
Table 5. Characteristics
…continued
T
amb
=25
C; V
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
TEA1755T All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 1.1 — 13 March 2015 24 of 35
NXP Semiconductors
TEA1755T
HV start-up DCM/QR flyback controller with integrated DCM/QR PFC
controller
V
ton(PFCCOMP)zero
zero on-time voltage
on pin PFCCOMP
3.4 3.5 3.6 V
Pulse-width modulator PFC
t
on(PFC)
PFC on-time V
VINSENSE
= 3.3 V; V
VOSENSE
=2V;
V
PFCCOMP
=V
clamp(PFCCOMP)
1.8 2.8 3.8 s
V
VINSENSE
=1V; V
VOSENSE
=2V;
V
PFCCOMP
=V
clamp(PFCCOMP)
17 27 37 s
Output voltage sensing PFC (VOSENSE pin)
V
th(start)VOSENSE
start threshold voltage
on pin VOSENSE
open-loop 1.05 1.1 1.15 V
V
th(stop)VOSENSE
threshold stop voltage
on pin VOSENSE
0.95 1 1.05 V
V
hys(VOSENSE)
hysteresis voltage on
pin VOSENSE
V
th(start)VOSENSE
V
th(stop)VOSENSE
75 100 125 mV
V
reg(VOSENSE)
regulation voltage on
pin VOSENSE
for I
O(PFCCOMP)
= 0 A 2.475 2.5 2.525 V
V
OVP(VOSENSE)
t
on
=0s 2.59 2.62 2.65 V
I
bst(dual)
dual boost current V
VINSENSE
<V
bst(dual)
low-level or
V
VOSENSE
< 2.1 V; V
FBCTRL
=5V
9.1 8.1 7.1 A
V
VINSENSE
=4V 50 25 5nA
Overcurrent protection PFC (PFCSENSE pin)
V
sense(PFC)max
maximum PFC sense
voltage
V/t = 0 V/s 465 495 525 mV
t
d(PFCDRIVER)
delay time on pin
PFCDRIVER
V
PFCSENSE
pulse-stepping 400 mV
around V
sense(PFC)max
-50 -ns
t
leb(PFC)
PFC leading edge
blanking time
V
PFCSENSE
= 0.75 V 230 290 350 ns
I
prot(PFCSENSE)
protection current on
pin PFCSENSE
50 - 5nA
Soft-start PFC (PFCSENSE pin)
I
start(soft)PFC
PFC soft start current 73 60 47 A
V
start(soft)PFC
PFC soft start voltage enabling voltage 0.45 0.5 0.55 V
V
stop(soft)PFC
PFC soft stop voltage disabling voltage 0.4 0.45 0.5 V
Oscillator PFC
f
sw(PFC)max
maximum PFC
switching frequency
119 139 159 kHz
t
off(PFC)min
minimum PFC off-time secondary stroke 1.25 1.55 1.85 s
Valley switching PFC (PFCAUX pin)
(V/t)
vrec(PFC)
PFC valley recognition
voltage change with
time
-- 1.7V/s
t
to(vrec)PFC
PFC valley recognition
time-out time
34.2 5.4s
Table 5. Characteristics
…continued
T
amb
=25
C; V
CC
= 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into
the IC; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit

TEA1755T/1,518

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
AC/DC Converters TEA1755T/SO16//1/REEL 13 Q1 DP
Lifecycle:
New from this manufacturer.
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