Product Brief
ICL8201
AC/DC Buck Controller with high Power Factor for LED Tubes
The ICL8201 is a cascode structure current mode controller for non-isolated floating buck
topologies. The cascode topology enables lower system cost and higher system efficiency.
Lower system cost:
No auxiliary winding is required to power the IC
No high voltage start up depletion Mosfet is required, fast time to light can be achieved
inherently with cascode topology
Higher system efficiency & reliability:
No start up resistor is required that would cause significant losses during the entire op-
eration. These losses can be eliminated by using the cascode topology which increases
the system efficiency and lifetime.
ICL8201 can provide up to 500mA output current that can cover the entire power range
for LED tubes. The device is tailored for LED tube applications and provides constant
current operation with low output ripple in a real universal input voltage range as well as
load compensation for a wide output voltage range.
The high level of integration enables a minimum of effort for addition of external com-
ponents. The control concept of the IC supports DC and AC input as well as high Power
Factor Correction (PFC), high efficiency levels and reduced EMI design in Critical Conduc-
tion operation Mode without zero crossing detection winding.
Integrated Over-Temperature Protection supports high reliability and long lifetime of
the LED lamps. An external NTC is not required which helps to reduce the system cost. The
SOT23-6 package supports small form factors and low-cost designs.
Applications
T8 lamp
GU10 lamp
A-lamp
Downlights
www.infineon.com/ledoffline
Key Features
Cascode topology enables lower
system cost and higher system
efficiency
Supports wide range AC or DC input
Power factor > 90 %, THD < 20 %
Line/load regulation
capabilities ±5%
LED output current up to 500 mA
Key Benefits
Minimum external components
supporting small form factors and
easy design-in
IC concept supports single inductors
without aux winding
Advanced cascode topology
eliminating the need for a HV cell at
universal input from 90–305 V
AC
Full set of protection modes
including intelligent
Over-Temperature Protection
Product Brief
ICL8201
AC/DC Buck Controller with high Power Factor for LED Tubes
Typical Application Schematic
V
BUS
DFree
R
GD
Q1
L
Buck
R
DS1)
C
DS
C
OUT
Fuse
Wide
Range
Input
L
FilterCM
BR
D1
DZGD
C
GD
VAR
C
XCap
C
IN
ICL8201
QR
PWM-Control
CON
C
ON
GND
Drain
DVCC
V
CC
C
VCC
CS
R
Sense
1) Optional
Design Support Tools
Reference Design Board GU10 – EVALLEDICL8201F1 with
MOSFET 500V CoolMOS™ CE (IPU50R3K0CE)
Size (L x W x H): 33 x 20 x 18 mm, Power 7.5 W
Order Number: SP001339448
Product Summary
Type
ICL8201
Description
AC/DC buck controller with PFC
Reference Design Board T8 – EVALLEDICL8201F2 with
MOSFET 650V CoolMOS™ CE (IPS65R1K5CE)
Size (L x W x H): 42 x 20 x 15 mm, Power 18W
Order Number: SP001339450
Package
SOT23-6
Ordering Code
SP001067934
Published by
Infineon Technologies AG
85579 Neubiberg, Germany
© 2015 Infineon Technologies AG.
All Rights Reserved.
Visit us:
www.infineon.com
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AND ANY INFORMATION GIVEN HEREIN SHALL IN NO EVENT
BE REGARDED AS A WARRANTY, GUARANTEE OR DESCRIPTION
OF ANY FUNCTIONALITY, CONDITIONS AND/OR QUALITY OF
OUR PRODUCTS OR ANY SUITABILITY FOR A PARTICULAR
PURPOSE. WITH REGARD TO THE TECHNICAL SPECIFICA-
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Additional information
For further information on technologies, our products,
the application of our products, delivery terms and
conditions and/or prices please contact your nearest
Infineon Technologies office (www.infineon.com).
Warnings
Due to technical requirements, our products may contain
dangerous substances. For information on the types in ques-
tion please contact your nearest Infineon Technologies office.
Except as otherwise explicitly approved by us in a written
document signed by authorized representatives of Infineon
Technologies, our products may not be used in any life
endangering applications, including but not limited to
medical, nuclear, military, life critical or any other applica-
tions where a failure of the product or any consequences of
the use thereof can result in personal injury.
Order Number: B121-I0147-V1-7600-EU-EC
Date: 05 / 2015
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