ICE1PCS01G

Manufacturer Part NumberICE1PCS01G
DescriptionIC PFC CONTROLLER CCM DSO8
ManufacturerInfineon Technologies
ICE1PCS01G datasheet
 

Specifications of ICE1PCS01G

ModeContinuous Conduction (CCM)Frequency - Switching133kHz
Current - Startup100µAVoltage - Supply10.2 V ~ 21 V
Operating Temperature-40°C ~ 125°CMounting TypeSurface Mount
Package / CaseDSO-8Switching Frequency40 KHz to 320 KHz
Maximum Operating Temperature+ 125 CMounting StyleSMD/SMT
Minimum Operating Temperature- 40 CLead Free Status / RoHS StatusLead free / RoHS Compliant
Other namesICE1PCS01GNT
ICE1PCS01GXT
SP000081001
  
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3.4
System Protection
The IC provides several protection features in order to
ensure the PFC system in safe operating range.
Depending on the input line voltage (V
bus voltage (V
), Figure 6 and 7 show the conditions
OUT
when these protections are active.
VCC > V
CCUVLO
V
(VAC)
IN
(1)
V
INMIN
Normal
IC’s
Operation
State
(1)
V
where BOP activates depends on the output power
INMIN
Figure 6
V
Related Protection Features
IN
V
OUT
V
OUT,Rated
PCL / SOC
OLP
OVP
Figure 7
V
Related Protection Features
OUT
The following sections describe the functionality of
these protection features.
3.4.1
Brown-Out Protection (BOP)
Brown-out occurs when the input voltage V
the minimum input voltage of the design (i.e. 85V for
universal input voltage range) and the VCC has not
entered into the V
level yet. For a system without
CCUVLO
BOP, the boost converter will increasingly draw a
higher current from the mains at a given output power
which may exceed the maximum design values of the
input current. The ICE1PCS01/G limits internally the
current drawn from the mains and therefore also limits
the input power. The difference of input and output
power will result in decreasing output voltage. If the
condition prolongs, the decreasing V
in output under voltage condition (OUV, 50% of rated),
and the IC will be shut down (See section 3.4.5).
Figure 8 shows the occurrence of BOP in respect to the
ISENSE voltage.
Version 1.2
) and output
IC’s
IN
State
VCC<V
CCUVLO
t
Figure 8
IC OFF
BOP
The V
IN
voltage at ISENSE and thus the output power. The
rated output power with a minimum V
P
105%
OUT
100%
Due to the internal parameter tolerance, the maximum
50%
power with V
16%
P
t
OUT
And the BOP takes over the normal operation under
OUV
OLP
rated output power latest at an input voltage of
V
BOPMAX
3.4.2
The IC is designed not to support any output power
that corresponds to a voltage lower than -0.73V at the
falls below
ISENSE pin. A further increase in the inductor current,
IN
which results in a lower ISENSE voltage, will activate
the Soft Over Current Control (SOC). This is a soft
control as it does not directly switch off the gate drive
like the PCL. It acts on the nonlinear gain block to result
in a reduced PWM duty cycle.
3.4.3
The IC provides a cycle by cycle peak current limitation
(PCL). It is active when the voltage at pin 3 (ISENSE)
reaches -1.08V. This voltage is amplified by OP1 by a
will terminate
OUT
factor of -1.43 and connected to comparator C2 with a
reference voltage of 1.5V as shown in Figure 9. A
deglitcher with 300ns after the comparator improves
noise immunity to the activation of this protection.
8
ICE1PCS01/G
Functional Description
P
(rated)
P
(max)
OUT
OUT
Normal
BOP
Operation
(BOP occurs at V
= -0.6V Max)
ISENSE
SOC
0
-0.6V -0.73V
-1.08V
BOP, SOC and PCL Protection as function
of V
ISENSE
threshold for BOP to occur is dependent on the
IN
0.6
(
)
×
rated
=
V
------------------ -
INMIN
R1
2
before BOP occurs is
INMIN
0.73
(
)
×
max
=
V
------------------ -
INMIN
R1
2
R1
2
(
)
×
=
P
rated
------------------ -
OUT
0.73
Soft Over Current Control (SOC)
Peak Current Limit (PCL)
CCM-PFC
PCL
V
ISENSE
(V
) is
INMIN
06 Feb 2007