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Supertex inc.
Simple, 220V, 20mA, Temperature-Compensated,
Constant Current, LED Driver IC
CL220
Features
► 5.0 to 220V operating range (V
► 20mA ±10% at 5.0 - 160V
► 0.01% / °C typical temperature coefcient
► Available in TO-252 (D-PAK) and TO-220 packages
► Can be paralleled for higher current
A-B
)
Applications
► Industrial lamp indicators
► Signage
► Accent lighting
► Constant current source
► Constant current sink
Typical Application Circuit
General Description
The Supertex CL220 is a high voltage, temperaturecompensated, 20mA constant current regulator. The device
operates at up to 220V, and is accurate to ±10% over a 5.0
- 160V range. The device can be used as a two terminal
constant current source or constant current sink.
A typical application for the CL220 is to drive LEDs with
a constant current of 20mA. Multiple CL220s can also be
used in parallel to provide higher currents such as 40mA,
60mA, 80mA, and so on. The device is available in the TO252 (D-PAK) and TO-220 packages.
VA
Functional
Up to 220V
+ V
LED(TOTAL)
Doc.# DSFP-CL220
B052013
10nF
I
LED
20mA
VB
CL220
+
V
–
Circuit Diagram
VA
Control Circuit
and Temperature
Compensation
LED(TOTAL)
VB
Supertex inc.
www.supertex.com
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CL220
Ordering Information
Part Number Package Options Packing
CL220K4-G TO-252 (D-PAK) 2000/Reel
CL2N5-G 3-Lead Power TO-220 50/Tube
-G denotes a lead (Pb)-free / RoHS compliant package
ESD Sensitive Device
Absolute Maximum Ratings
Parameter Value
Operating voltage, V
Operating junction temperature, T
Storage temperature, T
Absolute Maximum Ratings are those values beyond which damage to the
device may occur. Functional operation under these conditions is not implied.
Continuous operation of the device at the absolute rating level may affect
device reliability. All voltages are referenced to device ground.
240V
A-B
J
S
-40°C to +125°C
-55°C to +150°C
Pin Designation
Pin Description
VA Current ows into this pin.
VB Current ows out of this pin.
Pin Congurations
VB
VB
NC
VA
TO-252 (D-PAK)
(front view)
VA
TO-220
(front view)
Product Marking
Si YYWW
CL220K4
LLLLLLL
Packages may or may not include the following marks: Si or
Top Marking
CL220N5
LLLLLLLLL
YYWW
Packages may or may not include the following marks: Si or
YY = Year Sealed
WW = Week Sealed
L = Lot Number
= “Green” Packaging
TO-252 (D-PAK)
L = Lot Number
YY = Year Sealed
WW = Week Sealed
= “Green” Packaging
TO-220
NC
VB
Thermal Characteristics Guaranteed by design – not production tested
Sym Parameter Min Typ Max Units Conditions
Thermal resistance,
θ
ja
junction to ambient
Electrical Characteristics (T
Sym Parameter Min Typ Max Units Conditions
ΔI
V
A-B
/ΔT I
A-B
R
A-B
I
AB
I
OS
t
OS
t
DLY
t
RISE
Operating voltage 5.0 - 220 V ---
temperature coefcient - 0.01 - %/OC V
A-B
Dynamic resistance - 300 - kΩ ---
Output current
Turn-on overshoot current - 25 - mA VT = 45V (Fig. 5)
Overshoot duration - 1 - µs VT = 45V (Fig. 5)
Turn-on delay - 10 - µs VT = 45V (Fig. 5)
Turn-on rise time - 200 - ns VT = 45V (Fig. 5)
TO-252 (D-PAK) - 81 -
TO-220 - 29 -
= 25°C unless otherwise specied)
j
18 20 22
18 - 25 VAB = 160 - 220V (Fig. 4)
- - 22 VAB = 0 - 4.0V
O
C/W
Soldered to 2.0cm2 exposed copper
free air area
= 45V, Tj = -40OC to +100OC
A-B
VAB = 4.0 - 160V
mA
Doc.# DSFP-CL220
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Supertex inc.
Page 3
CL220
VA
VA
Fig. 1 Functional Circuit Diagram Fig. 2 Equivalent Block Diagram
Control Circuit
and Temperature
Compensation
20mA
VB
Fig. 3 Temperature Characteristics
1.02
1.01
1.00
0.99
Current, normalized to 25°C
0.98
-55 -35 -15 5 25 45 65 85 105 125 145
Fig. 4 Output Characteristics
30
VB
5V
45V
90V
Junction Temperature (°C)
(mA)
I
Doc.# DSFP-CL220
B052013
25
20
15
A-B
10
5
scale change
0
0 5 10 15 20 60 100 140 180 220
V
(V)
A-B
Supertex inc.
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Fig. 5 Timing Diagram
V
T
V
A-B
0V
I
A-B
0mA
t
DLY
t
RISE
t
OS
90%
10%
Inrush spike due to charging
of parasitic capacitances
and dV/dt CDG feed-thru
Turn-on overshoot due to
start-up characteristics
of internal circuitry
I
OS
100%
CL220
Fig. 6 Timing Test Circuit
V
T
CL220
I
A-B
1.0µF film
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Supertex inc.
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Fig. 7 CL220 for Multiple LED Strings
CL220
VA
VB
Up to 220V
+V
LED(TOTAL)
CL220 CL220 CL220
10nF
I
LED
20mA
Fig. 8 CL220 for Higher Current
CL220 CL220 CL220
I
LED
20mA
VA
VA
VB
I
LED
20mA
VA
VA
VB
CL220
20mA
VA
VA
VB
+
I
LED
V
LED(TOTAL)
–
Up to 220V
+V
LED(TOTAL)
10nF
VB
VB
60mA
VB
+
I
LED
V
LED(TOTAL)
–
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Supertex inc.
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3-Lead TO-252 (D-PAK) Package Outline (K4)
CL220
E
4
1 2 3
Front View
b3
E1
L3
θ1
D1
D
L4
L5
Note 1
b2
e
Rear View
b
View B
Side View
A
c2
H
L2
Gauge
Plane
θ
L
L1
A1
Seating
Plane
View B
Note:
1. Although 4 terminal locations are shown, only 3 are functional. Lead number 2 was removed.
Symbol A A1 b b2 b3 c2 D D1 E E1 e H L L1 L2 L3 L4 L5
Dimen-
sion
(inches)
JEDEC Registration TO-252, Variation AA, Issue E, June 2004.
* This dimension is not specied in the JEDEC drawing.
†
This dimension differs from the JEDEC drawing.
Drawings not to scale.
Supertex Doc. #: DSPD-3TO252K4, Version F040910.
MIN .086 .000* .025 .030 .195 .018 .235 .205 .250 .170
NOM - - - - - - .240 - - - - .060 - - - - -
MAX .094 .005 .035 .045 .215 .035 .245 .217* .265 .200* .410 .070 .050 .040 .060 10O15
.090
BSC
.370 .055
.108
REF
.035 .025* .035†0O0
.020
BSC
θ
θ1
O
O
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Supertex inc.
Page 7
3-Lead TO-220 Package Outline (N5)
A
Seating
E
E2
ΦP
Q
H1
Plane
A
A1
CL220
E
H1
D
D1
View
B
4
Chamfer
Optional
12
Front View View A - A
3
L
A2
e
c
A
Side View
1
3
2
Thermal
Pad
L1
D1
E1
bb2
View B
Symbol A A1 A2 b b2 c D D1 D2 E E1 E2 e H1 L L1 Q ΦP
Dimen-
sion
(inches)
JEDEC Registration TO-220, Variation AB, Issue K, April 2002.
* This dimension is not specied in the JEDEC drawing.
† This dimension differs from the JEDEC drawing.
Drawings not to scale.
Supertex Doc. #: DSPD-3TO220N5, Version C041009.
MIN .140 .020 .080 .015 .045 .012†.560 .326†.474†.380 .270 0.20*
NOM - - - .027 .057 - - - - - - - - - - - -
MAX .190 .055 .120†.040 .070 .024 .650 .361†.507 .420 .350 .030 .270 .580 .250 .135 .161
.230 .500 .200* .100 .139
.100
BSC
(The package drawings in this data sheet may not reect the most current specications. For the latest package outline
information go to http://www.supertex.com/packaging.html.)
Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives
an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability
to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and
specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//www.supertex.com)
©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited.
Doc.# DSFP-CL220
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Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
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