SSL4120T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Objective data sheet Rev. 1 — 21 June 2012 36 of 47
NXP Semiconductors
SSL4120T
Resonant power supply control IC with PFC
PFC demagnetization sensing (pin SNSAUXPFC)
V
demag(SNSAUXPFC)
demagnetization voltage on pin
SNSAUXPFC
−150 −100 −50 mV
t
to(mag)
magnetization time-out time 40 50 60 μs
I
prot(SNSAUXPFC)
protection current on pin
SNSAUXPFC
V
SNSAUXPFC
=50mV −75 −33 - nA
PFC valley sensing (pin SNSAUXPFC)
(dV/dt)
vrec(min)
minimum valley recognition rate of
voltage change
--1.7V/μs
t
slope(vrec)min
minimum valley recognition slope
time
V
SNSAUXPFC
=1V
pp
[4]
- - 300 ns
demagnetization to ΔV/Δt=0
[5]
--50ns
t
d(val-dem)max
maximum valley-to-demag delay
time
- 200 - ns
t
to(vrec)
valley recognition time-out time 3 4 6 μs
PFC soft start (pin SNSCURPFC)
I
ch(ss)(PFC)
PFC soft-start charge current - −60 - μA
V
clamp(ss)(PFC)
PFC soft-start clamp voltage
[1]
0.46 0.5 0.54 V
V
stop(ss)(PFC)
PFC soft-start stop voltage
[1]
-0.45-V
R
ss(PFC)
PFC soft-start resistor 12 - - kΩ
PFC overcurrent sensing (pin SNSCURPFC)
V
ocr(PFC)
PFC overcurrent regulation voltage dV/dt = 50 mV/μs 0.49 0.52 0.55 V
dV/dt = 200 mV/μs 0.51 0.54 0.57 V
t
leb(PFC)
leading edge blanking time 250 310 370 ns
I
prot(SNSCURPFC)
protection current on pin
SNSCURPFC
−50 −33 - nA
PFC mains voltage sensing and clamp (pin SNSMAINS)
V
start(SNSMAINS)
start voltage on pin SNSMAINS
[1]
1.11 1.15 1.19 V
V
uvp(SNSMAINS)
undervoltage protection voltage on
pin SNSMAINS
[1]
0.84 0.89 0.94 V
V
pu(SNSMAINS)
pull-up voltage on pin SNSMAINS UVP-mains active
[1]
-1.05-V
I
pu(SNSMAINS)
maximum clamp current UVP-mains active - −42 −35 μA
I
prot(SNSMAINS)
Protection current on pin
SNSMAINS
V
SNSMAINS
>V
uvp(SNSMAINS)
- 33 100 nA
PFC boost voltage protection sensing, SCP/UVP/OVP boost (pin SNSBOOST)
V
scp(SNSBOOST)
short-circuit protection voltage on
pin SNSBOOST
0.35 0.4 0.45 V
V
start(SNSBOOST)
start voltage on pin SNSBOOST - 2.3 2.4 V
V
uvp(SNSBOOST)
undervoltage protection voltage on
pin SNSBOOST
1.5 1.6 - V
V
ovp(SNSBOOST)
overvoltage protection voltage on
pin SNSBOOST
2.59 2.63 2.67 V
Table 7. Characteristics …continued
T
amb
=25
°
C; V
SUPIC
=20V; V
SUPHV
> 40 V; all voltages are measured with respect to SGND; currents are positive when
flowing into the IC; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit