ICE1CS02G

Manufacturer Part NumberICE1CS02G
DescriptionIC PFC CTRLR AVERAGE CURR DSO16
ManufacturerInfineon Technologies
ICE1CS02G datasheet
 


Specifications of ICE1CS02G

ModeAverage CurrentFrequency - Switching65kHz
Current - Startup1.3mAVoltage - Supply11 V ~ 25 V
Operating Temperature-40°C ~ 150°CMounting TypeSurface Mount
Package / CaseDSO-16Lead Free Status / RoHS StatusLead free / RoHS Compliant
Other namesSP000444092
SP000783614
  
1
2
3
4
5
6
7
8
9
10
11
Page 11
12
Page 12
13
Page 13
14
Page 14
15
Page 15
16
Page 16
17
Page 17
18
Page 18
19
Page 19
20
Page 20
21
22
23
24
25
26
27
Page 11/27

Download datasheet (439Kb)Embed
PrevNext
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 7
V
Related Protection Features
IN
V
OUT
V
OUT,Rated
PCL
OLP
OVP
Figure 8
V
Related Protection Features
OUT
The following sections describe the functionality of
these protection features.
3.4.4
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. When the input voltage V
voltage with hystersis, both set externally by resistor/
capacitor/diode network as shown in Figure 9, the PFC
portion will stop switching. When the input voltage V
exceeds the voltage set externally. The hysteresis
prevents the system to oscillate between normal and
standby mode.
Version 1.0
VCC<V
CCUVLO
D1
R2
t
IC OFF
BOP
C1
R1
set by pin 3
Figure 9
100%
3.4.5
20%
The IC is designed not to support any output power
t
that corresponds to a voltage lower than -0.68V at the
ISENSE pin. A further increase in the inductor current,
which results in a lower ISENSE voltage, will activate
OLP
the Peak Current Limitation (PCL) protection.
IC’s
State
falls below
IN
fall below a
Figure 10
IN
Due to the internal parameter tolerance, the maximum
inductor current is
IN
The IC provides a cycle by cycle peak current limitation
(PCL). It is active when the voltage at pin 16 (PFC
ISENSE) reaches -0.68V. This voltage is amplified by
OP1 by a factor of -1.43 and connected to comparator
C2 with a reference voltage of 1.0V as shown in Figure
11. The overall time delay for PCL is about 200ns ~
500ns depending on the Isense voltage level.
11
Combi PFC/ PWM Controller
ICE1CS02
Functional Description
Brown-Out
Vin
Protection
I
VINSmax
VINS_HYS = 2.5V
VINS
1.25V
C5
Gm = 1mA / V
VINS_HYS
R3
PFC Brown Out Protection (BOP)
Peak Current Limit (PCL)
I
(max)
L
Normal
Operation
PCL
0
-0.68V
PCL Protection as function of V
0.68
I
(
)
L max
=
--------- -
R1
25 July 2008
= 100µA typ @
Turn Off
Gate
V
ISENSE
ISENSE