ICE3DS01L Infineon Technologies, ICE3DS01L Datasheet - Page 8

• Manufacturer Part Number: ICE3DS01L
• Description: IC OFFLINE CTRLR SMPS CM 8DIP
• Manufacturer: Infineon Technologies
• Series: CoolSET®F3r

Specifications of ICE3DS01L

• Output Isolation: Isolated
• Frequency Range: 98 ~ 119kHz
• Voltage - Input: 8.5 ~ 22 V
• Voltage - Output: 500V
• Power (watts): 900mW
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• For Use With: EVALSF3-ICE3DS01G-60WIN - BOARD DEMO ICE3DS01G 60W SO-8EVALSF3-ICE3DS01IN - BOARD DEMO ICE3DS01 60W 8-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ICE3DS01LX; ICE3DS01LXK; SP000014265

3
All values which are used in the functional description are
typical values. For calculating the worst cases the min/max
values which can be found in section 4 Electrical
Characteristics have to be considered.
3.1
The F3 is the further development of the F2 to meet the
requirements for the lowest Standby Power at minimum load
and no load conditions. A new fully integrated Standby
Power concept is implemented into the IC in order to keep
the application design easy. Compared to F2 no further
external parts are needed to achieve the lowest Standby
Power. An intelligent Active Burst Mode is used for this
Standby Mode. After entering this mode there is still a full
control of the power conversion by the secondary side via the
same optocoupler that is used for the normal PWM control.
The response on load jumps is optimized. The voltage ripple
on V
mode.
The usually external connected RC-filter in the feedback line
after the optocoupler is integrated in the IC to reduce the
external part count.
Furthermore a high voltage startup cell is integrated into the
IC which is switched off once the Undervoltage Lockout on-
threshold of 15V is exceeded. The external startup resistor is
no longer necessary. Power losses are therefore reduced.
This increases the efficiency under light load conditions
dramatically.
The Soft-Start capacitor is also used for providing an
adjustable blanking window for high load jumps. During this
time window the overload detection is disabled. With this
concept no further external components are necessary to
adjust the blanking window.
A new Latched Off Mode is implemented into the IC in order
to increase the robustness and safety of the system. Latched
Off Mode is only entered if very dangerous conditions occur
that damage the SMPS if not switched off immediately. A
restart of the system can then only be done by disconnecting
the AC line.
Auto Restart Mode reduces the average power conversion to
a minimum. In this mode malfunctions are covered that
could lead to a destruction of the SMPS if no dramatically
reduced power limitation is provided over time. Once the
malfunction is removed normal operation is immediately
started after the next Start Up Phase.
The internal precise peak current limitation reduces the costs
for the transformer and the secondary diode. The influence
of the change in the input voltage on the power limitation can
be avoided together with the integrated Propagation Delay
Compensation. Therefore the maximum power is nearly
independent on the input voltage that is required for wide
range SMPS. There is no need for an extra over sizing of the
SMPS, e.g. the transformer or PowerMOS.
Version 2.1
out
is minimized. V
Functional Description
Introduction
out
is further on well controlled in this
8
3.2
Figure 4
The Undervoltage Lockout monitors the external supply
voltage V
the internal Startup Cell is biased and starts to charge the
external capacitor C
The VCC charge current that is provided by the Startup Cell
from the HV pin is 1.05mA. When V
threshold V
circuit are switched on. Then the Startup Cell is switched off
by the Undervoltage Lockout and therefore also the power
losses are switched off caused by the Startup Cell which is
connected to the bus voltage (HV). To avoid uncontrolled
ringing at switch-on a hysteresis is implemented. The
switch-off of the controller can only take place after Active
Mode was entered and V
The maximum current consumption before the controller is
activated is about 170µA.
When V
internal reference is switched off and the Power Down reset
Power Management
HV
Power-Down Reset
Latched Off Mode
Internal Bias
V
VCC
VCC
Reset
VCC
T1
< 6V
CCon
Power Management
falls below the off-threshold V
. When the SMPS is plugged to the main line
Power Management
=15V the internal voltage reference and bias
VCC
Startup Cell
which is connected to the VCC pin.
VCC
SoftS
Functional Description
falls below 8.5V.
Reference
Voltage
Undervoltage Lockout
Auto Restart Mode
8.5V
Active Burst Mode
Latched Off Mode
ICE3DS01L/LG
VCC
exceeds the on-
15V
15 Nov 2005
CCoff
6.5V
=8.5V the
VCC
F3