20mA ±10% constant current drive 1.0V dropout rating transient immunit

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20mA ±10% constant current drive 1.0V dropout rating transient immunit

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CL520 Linear, Fixed Constant Current Driver
20mA ±10% constant current drive 1.0V dropout rating transient immunity Temperature compensated 4.75 supply range
CL520 fixed, linear current regulator designed driving LEDs 20mA. With maximum rating 90V, able withstand transients without need additional transient protection circuitry. ideally suited applications employing single multiple LEDs. minimum dropout voltage 1.0V accomodates extra LEDs, permits lower supply voltages, provides more efficient operation. CL520 offered TO-252(D-PAK) TO-92 packages.
Applications
Specialty lighting voltage signage
Typical Application Circuit
4.75 100nF
20mA
20mA
Control
1235 Bordeaux Drive, Sunnyvale, 94089 Tel: 408-222-8888 www.supertex.com
CL520
Ordering Information
Device CL520 Package Options TO-252 (D-PAK) CL520K4-G TO-92 CL520N3-G
Configurations
TO-92 (N3)
indicates package RoHS compliant (`Green')
TO-252 (D-PAK) (K4)
Product Marking Absolute Maximum Ratings
Parameter Supply voltage, Output voltage, VOUT Operating junction temperature Storage temperature Value -0.5V +100V -0.5V +100V -40°C +125°C -65°C +150°C
YYWW CL520K4 LLLLLLL
Year Sealed Week Sealed Number "Green" Packaging
TO-252 (D-PAK) (K4)
Year Sealed Week Sealed "Green" Packaging
Absolute Maximum Ratings those values beyond which damage device occur. Functional operation under these conditions implied. Continuous operation device absolute rating level affect device reliability. voltages referenced device ground.
TO-92 (N3)
Recommended Operating Conditions (all voltages with respect pin)
VOUT Parameter Supply voltage Voltage pin1 Junction temperature bypass capacitor 4.75 Units
Conditions
Thermal Characteristics
Parameter Thermal resistance, junction case Thermal resistance, junction ambient D-PAK TO-92 D-PAK TO-92 Units
Conditions
Notes: Thermal considerations limit voltage less than 90V.
1235 Bordeaux Drive, Sunnyvale, 94089 Tel: 408-222-8888 www.supertex.com
CL520
Electrical Characteristics
IOUT IOUT(OFF) VDD(OFF) tOFF Parameter Current into Current into Current into with open Voltage shut current applied time removed time
(Over recommended operating conditions. 25OC unless otherwise specified. voltages with respect pin)
Units Conditions -1.0V VOUT VOUT <1.0V open IOUT 10µA
Temperature Effects
(Normalized 25°C VOUT
1.02 1.00 0.98 0.96 0.94 0.92
VOUT=90V, 100ms VOUT=1V
Current
Junction Temperature (°C)
Application Circuits
Switched
4.75 100nF IOUT
Seperate Supply
(VOUT higher lower than VDD.)
20mA
Control
20mA
Control
1235 Bordeaux Drive, Sunnyvale, 94089 Tel: 408-222-8888 www.supertex.com
CL520
Application Circuits
Ground Referenced LEDs
100nF
20mA
Control
VLED 4.75V VLED
ILED IOUT
Description
TO-252 D-PAK (K4) TO-92 (N#) Name Description Supply voltage CL520. Bypass locally with 100nF capacitor ground. Constant current output (sink). Circuit common.
1235 Bordeaux Drive, Sunnyvale, 94089 Tel: 408-222-8888 www.supertex.com
CL520
3-Lead TO-252 D-PAK Package Outline (K4)
Note
View
Front View
Rear View
Side View
Gauge Plane
Seating Plane
View
Note: Although terminal locations shown, only functional. Lead number removed. Symbol Dimension (inches) .086 .094 .000* .005 .025 .035 .030 .045 .195 .215 .018 .035 .235 .240 .245 .205 .217* .250 .265 .170 .182* .090 .370 .410 .055 .060 .070 .108 .020 .035 .050 .025* .040 .045 .060
JEDEC Registration TO-252, Variation Issue June 2004. This dimension specified original JEDEC drawing. value listed reference only. Drawings scale. Supertex Doc. DSPD-3TO252K4, Version D081408.
1235 Bordeaux Drive, Sunnyvale, 94089 Tel: 408-222-8888 www.supertex.com
CL520
3-Lead TO-92 Package Outline (N3)
Seating Plane
Front View
Side View
Bottom View
Symbol Dimensions (inches)
.170 .210
.014 .022
.014 .022
.175 .205
.125 .165
.080 .105
.095 .105
.045 .055
.500 .610*
JEDEC Registration TO-92. This dimension specified original JEDEC drawing. value listed reference only. This dimension non-JEDEC dimension. Drawings scale. Supertex Doc.#: DSPD-3TO92N3, Version D080408.
(The package drawing(s) this data sheet reflect most current specifications. latest package outline information
Supertex inc. does recommend products life support applications, will knowingly sell them such applications unless receives adequate "product liability indemnification insurance agreement." Supertex inc. does assume responsibility devices described, limits liability replacement devices determined defective workmanship. responsibility assumed possible omissions inaccuracies. Circuitry specifications subject change without notice. latest product specifications refer Supertex inc. website: http//www.supertex.com.
©2008 rights reserved. Unauthorized reproduction prohibited.
Doc.# DSFP-CL520 A120908
1235 Bordeaux Drive, Sunnyvale, 94089 Tel: 408-222-8888 www.supertex.com

20mA ±10% constant current drive 1.0V dropout rating transient immunit

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