CL1 SUTEX | Alldatasheet
Document overview
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Technical content
Features
5.0V to 90V operating range (Va-b) 20mA ±5% at 45V Va-b -8.5µA / °C Typical Temperature Coefficient SOT-89, D-PAK & TO-92 packages No external components (two terminal device) Can be paralleled for higher current
Applications
LED driver Industrial lamp indicators Signage Accent lighting Automotive Constant current source Constant current sink Typical Application Circuit General Description The Supertex CL1 is a high voltage, temperature compensated, constant current source. The device is trimmed to provide a constant current of 20mA±5% at an input voltage of 45V. No external components are required. The device can be used as a two terminal constant current source or constant current sink. A typical application for the CL1 is to drive LEDs with a constant current of 20mA. They can also be used in parallel to provide higher currents such as 40mA, 60mA or 80mA. The device is available in SOT-89, D-PAK and TO-92 packages. ILED < 20mA Va Vb CL1 Up to 90V +V LED(total) VLED(total) Va Control Circuit and Temperature Compensation Vb Functional Circuit Diagram CL1
NC = No Connect TO-252 (D-PAK) TO-252 (D-PAK) VB NC VA VB VA NC VA V NC V (TO-92) ab Absolute Maximum Ratings* Va-b, Operating Voltage 100V TJ, Operating Junction Temperature 0°C to +125°C Ts, Storage Temperature -55°C to +150°C *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. Thermal Characteristics Package Power Dissipation @ TA=25°C θJC °C/W θJA °C/W TO-92 0.73W 125 170 TO-243AA (SOT-89) 1.3W* 15 78* TO-252 (D-PAK) 2.0W* 6.0 50* * Mounted on FR4 board; 25mm x 25mm x 1.57mm.
Ordering Information
CL1N3 /CL1N3-G CL1K4-G CL1N8 /CL1N8-G -G indicates package id RoHS compliant (“Green”) TO-243AA (SOT-89) CL1
Electrical Characteristics (@ TJ=25°C unless otherwise specified) Symbol Parameter Min Typ Max Units Conditions Va-b Maximum operating voltage 90 V 17.1 18.0 18.9 mA Va-b=5V 19.0 20.0 21.0 mA Va-b=45V Ia-b Current regulation 19.0 22.0 24.2 mA Va-b=90V ∆Ia-b/∆T Ia-b temperature coefficient -8.5 µA/°C Va-b=45V, TJ=0°C to 100°C Ra-b AC resistance 17 KΩ Va-b=5.0V to 90V TJ Operating junction temperature 0 125 °C 01 0 2 03 04 05 06 07 08 09 0 1 0 0 Va-b (Volts) Ia-b (m Output Current vs Voltage CL1
~20mA Vb Va CL1 Up to 90V +VLED(total) ILED ~20mA Vb Va CL1 ILED ~20mA Vb Va CL1 ILED ~20mA Vb Va CL1 VLED(total) CL1 for 120V Off-Line LED Driver CL1 for Multiple LED Strings CL1 for 120V Off-Line LED Driver Vb Va CL1 Up to 90V +VLED(total) Vb Va CL1 ILED ~60mA Vb Va CL1 VLED (total) CL1 Doc#: DSFP-CL1 B112806
3-Lead TO-252 D-PAK Package Outline (K4) Doc. #: DSPD-3TO252K4 C051707 Notes: 1. 4 terminal locations are shown, only 3 are functional. Lead number 2 was removed. 123 L4 L5 bb2 e L Seating Plane Gauge Plane θ D E Detail B Front ViewSide View Rear View Detail B H A Symbol A A1 b b2 c2 D D1 E E1 e H L L1 L2 L3 L4 L5 θ θ1 Dimension (inches) .090 BSC .370 .055 .108 REF .020 BSC .035 - .045 0 O 0O JEDEC Registration TO-252, Variation AA, Issue E, June 2004. Drawings not to scale.
Doc. #: DSPD-3TO92N3 B062306 3-Lead TO-92 Package (N3) 1 2 3 Seating Plane 2 3 Front View 0.175 - 0.205 0.170 - 0.210
0.500 MIN
0.014 - 0.022 0.045 - 0.055 0.095 - 0.105 0.125 - 0.165
0.135 MIN
0.080 - 0.105 0.014 - 0.022 Side View Top View Note: All dimension are in inches; angles are in degrees.
3-Lead TO-243AA (SOT-89) Surface Mount Package (N8) Doc. #: DSPD-3TO243AAN8 C103106 Exclusion Zone No Vias/Traces in this area. Shape of pad may vary.
3.00 BSC
1.50 BSC
1.05 ± 0.15 2.45 ± 0.15 4.10 ± 0.15 1.72 ± 0.10 4.50 ± 0.10 2.21 ± 0.08 0.40 ± 0.05 1.50 ± 0.10 Notes: 1. All dimensions are in millimeters; all angles in degrees. Top View Side View Bottom View