CL2A20-M

CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Features • Limits regulated current • 5mA, 10mA, 15mA, 20mA versions • Enable pin • Rejects 50Hz / 60Hz ripple • 250V maximum operating voltage • Zero external components • Can be paralleled for high current Description The CL2 product family are temperature compensated unipolar current regulator with an enable pin available in 5mA to 20mA versions. It is designed to be used under a wide range of voltages, from 6V to 200V DC. The CL2 is primarily intended as a current limiting LED driver for serial LED applications in industrial lamp indicators, signage, accent and automotive lightning. Other applications include constant current source and sink. The CL2 temperature coefficient is optimized from -40oC to 125oC. The CL2 will source or sink constant current. The CL2 will likely require a heat sink connected to the Source (pin 2). Absolute Maximum Ratings1 Maximum operating voltage2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V DC Maximum Enable voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V DC Operating free air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 oC to 85oC Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 oC to 85oC ESD tolerance, human body model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500V Note 1: Stresses beyond “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or beyond those conditions indicated under “Recommended Operating Conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended period may impact device reliability. Note 2: All voltages are with respect to Source Recommended Operating Conditions Min Max Unit 6 200 V DC Operating free air temperature -40 85 o C Operating chip temperature -40 135 o C 0 8 Operating Voltage VEnable SimpleChips Technology Inc. V DC Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 1/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Thermal Characteristics3 Ambient Temperature (25oC) unless otherwise specified Parameter Min Typ Max Unit SOT223 thermal resistance minimum copper layout 160 o C/Watt SOT223 thermal resistance (0.60inch x 0.50inch) 88 o C/Watt SOT223 thermal resistance (1.0inch x 1.0inch) 67 o C/Watt TO252 thermal resistance minimum copper layout 110 o C/Watt TO252 thermal resistance (0.60inch x 0.50inch) 75 o C/Watt TO252 thermal resistance (1.0inch x 1.0inch) 50 o C/Watt Note 3: Footprint copper layout size based on Package Heating Test Board (page 12) Terminal Definition Terminal Name Pin No. Type Description Sink 1 HV Input Sinks the load current. Source 2 VH Input Usually Ground. Sources the load current. Enable 3 Input Enables current flow between Sink and Source. SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 2/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Functional Block Diagram Concept of Operation This chip is powered by applying a voltage difference between Sink and Source terminal. As the Enable voltage rises, the N-Channel MOSFET begins to conduct current between Sink and Source terminals. The temperature compensated source resistor senses this current and provides this feedback voltage to the non-inverting input of the operational amplifier. The operational amplifier compares the feedback voltage with the reference voltage provided by a p-n junction. The operational amplifier drives the gate of the N-channel MOSFET such that the feedback voltage and the reference voltage remain equal. p-n junctions exhibit a negative temperature coefficient of approximately -2mV/ oC. The Source resistor is temperature compensated to match the temperature coefficient of the p-n junction. In this way, the regulated current flowing between Sink and Source will be (to a first order) independent of the chip junction temperature. The power dissipated by the chip is given simply as I lim * (VSink - VSource). The chip will likely require a heat sink mechanically connected to the Source terminal (pin 2). SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 3/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Electrical Characteristics VSink - VSource = 20V, Temp = 25oC unless otherwise specified 20mA nominal device Parameter Regulated Current (Ilim) at 25oC Min Typ Max Unit 17.1 20.0 22.9 mA Regulated Current (Ilim) at -40oC 18 mA Regulated Current (Ilim) at +85oC 20.4 mA Operating voltage for 90% regulated current 2.0 3.0 4.0 V Absolute Temperate Coefficient 24 Voltage Coefficient 10V to 200V (pulse 10mSec) 0.4 0.6 mA / 100V 3.1 4.0 V VEnable current (VEnable = 5V, 25oC) 18 30 A VEnable current (VEnable = 8V, 85oC) 65 A Stabilization Time to 10% of final value 2.0 Sec Transient response to 10% to 90% 300 nSec VEnable fo 90% regulated current 2.0 A / oC 15mA nominal device Parameter Regulated Current (Ilim) at 25oC Min Typ Max Unit 12.8 15 17.2 mA Regulated Current (Ilim) at -40oc 13.5 mA Regulated Current (Ilim) at +85oC 15.3 mA Operating voltage for 90% regulated current 2.0 3.0 4.0 V Absolute Temperate Coefficient 18 Voltage Coefficient 10V to 200V (pulse 10mSec) 0.3 0.5 mA / 100V 3.1 4.0 V VEnable current (VEnable = 5V, 25oC) 18 30 A VEnable current (VEnable = 8V, 85oC) 65 A Stabilization Time to 10% of final value 2.0 Sec Transient response to 10% to 90% 300 nSec VEnable fo 90% regulated current 2.0 SimpleChips Technology Inc. A / oC Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 4/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Electrical Characteristics (cont.) VSink - VSource = 20V, Temp = 25oC unless otherwise specified 10mA nominal device Parameter Regulated Current (Ilim) at 25oC Min Typ Max Unit 8.5 10.0 11.5 mA Regulated Current (Ilim) at -40oc 9 mA Regulated Current (Ilim) at +85oC 10.2 mA Operating voltage for 90% regulated current 2.0 3.0 4.0 V Absolute Temperate Coefficient 12 Voltage Coefficient 10V to 200V (pulse 10mSec) 0.2 0.4 mA / 100V 3.1 4.0 V VEnable current (VEnable = 5V, 25oC) 18 30 A VEnable current (VEnable = 8V, 85oC) 65 A Stabilization Time to 10% of final value 2.0 Sec Transient response to 10% to 90% 300 nSec VEnable fo 90% regulated current 2.0 A / oC 5mA nominal device Parameter Regulated Current (Ilim) at 25oC Min Typ Max Unit 4.2 5.0 5.8 mA Regulated Current (Ilim) at -40oc 4.5 mA Regulated Current (Ilim) at +85oC 5.1 mA Operating voltage for 90% regulated current 2.0 Absolute Temperate Coefficient 3.0 4.0 6 Voltage Coefficient 10V to 200V (pulse 10mSec) V A / oC 0.1 0.3 mA / 100V 3.1 4.0 V VEnable current (VEnable = 5V, 25oC) 18 30 A VEnable current (VEnable = 8V, 85oC) 65 A Stabilization Time to 10% of final value 2.0 Sec Transient response to 10% to 90% 300 nSec VEnable fo 90% regulated current 2.0 SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 5/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Characteristic Curves (25oC, 20mA version) SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 6/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Characteristics curves (25oC, 20mA version) Note 4: Footprint size based on Package Heating Test Board (page 12) SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 7/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Characteristics curves (25oC, 20mA version) Note 5: Footprint size based on Package Heating Test Board (page 12) SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 8/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Characteristics curves (25oC, 20mA version) SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 9/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Typical Application Circuit SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 10/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Package Dimensions 3-Lead TO-252 (DPAK) Front view Side view Rear view Side view Rear view 3-Lead SOT-223 Front view SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 11/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Thermal properties test boards: (Schematics not to scale) SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 12/13 CL2 Unipolar Current Regulator 5-20mA Temperature Compensated May 2021 Product Identification Codes PART NO. X Device XX Internal Use - Regulated Current XX - Package Type XX Media Device: CL2 = Temperature Compensated Unipolar Current Regulator Internal use: A B C = Internal Use Regulated Current: 5 10 15 20 = = = = 5mA 10mA 15mA 20mA Package: M ST = = SOT-223 TO-252 (DPAK) Media Type: B T TR = = = Bulk Samples Tubes Tape & Reel SimpleChips Technology Inc. Copyright 2021, SimpleChips Technology Incorporated www.simplechips.com 13/13