LT3092 200mA 2-Terminal Programmable Current Source Fea T Descrip T n Programmable 2-Terminal Current Source The LT 3092 is a programmable 2-terminal current n Maximum Output Current: 200mA source. It requires only two resistors to set an output n Wide Input Voltage Range: 1.2V to 40V current between 0.5mA and 200mA. A multitude of analog n Input/Output Capacitors Not Required techniques lend themselves to actively programming the n Resistor Ratio Sets Output Current output current. The LT3092 is stable without input and n Initial Set Pin Current Accuracy: 1% output capacitors, offering high DC and AC impedance. This n Reverse-Voltage Protection feature allows operation in intrinsically safe applications. n Reverse-Current Protection The SET pin features 1% initial accuracy and low tem- n <0.001%/V Line Regulation Typical perature coefficient. Current regulation is better than n Current Limit and Thermal Shutdown Protection 10ppm/V from 1.5V to 40V. n Available in 8-Lead SOT-23, 3-Lead SOT-223 and The LT3092 can operate in a 2-terminal current source 8-Lead 3mm 3mm DFN Packages configuration in series with signal lines. It is ideal for driv- ing sensors, remote supplies, and as a precision current a T limiter for local supplies. n 2-Terminal Floating Current Source Internal protection circuitry includes reverse-battery and n GND Referred Current Source reverse-current protection, current limiting and thermal n Variable Current Source limiting. The LT3092 is offered in the 8-lead TSOT-23, n In-Line Limiter 3-lead SOT-223 and 8-lead 3mm 3mm DFN packages. n Intrinsic Safety Circuits L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Adjustable 2-Terminal Current Source SET Pin Current vs Temperature V V = 1.2V TO 40V IN OUT 10.100 10.075 IN LT3092 10.050 10A 10.025 + 10.000 9.975 SET OUT 9.950 R R SET OUT 9.925 3092 TA01a 9.900 50 25 0 25 50 75 100 125 150 TEMPERATURE (C) R SET 3092 TA01b I =10A SOURCE R OUT 3092fc 1 For more information www.linear.com/LT3092 SET PIN CURRENT (A) ion pplica ions pplica ion uresLT3092 a Te Maxi Mu M r a T (Note 1) All Voltages Relative to V OUT IN Pin Voltage Relative to SET, OUT ........................40V Operating Junction Temperature Range (Notes 2, 8) SET Pin Current (Note 6) ..................................... 15mA E, I Grades ......................................... 40C to 125C SET Pin Voltage (Relative to OUT, Note 6) .............. 10V MP Grade ........................................... 55C to 125C Output Short-Circuit Duration .......................... Indefinite Storage Temperature Range .................. 65C to 150C Lead Temperature (ST, TS8 Packages Only) Soldering, 10 sec ..............................................300C p in c F T TOP VIEW TOP VIEW 3 IN TOP VIEW OUT 1 8 IN NC 1 8 IN OUT 2 7 IN TAB IS OUT 2 OUT 9 OUT 2 7 IN NC 3 6 NC OUT 3 6 NC SET 4 5 NC 1 SET OUT 4 5 SET ST PACKAGE TS8 PACKAGE DD PACKAGE 3-LEAD PLASTIC SOT-223 8-LEAD PLASTIC TSOT-23 8-LEAD (3mm 3mm) PLASTIC DFN T = 125C, = 24C/W, = 15C/W T = 125C, = 57C/W, = 15C/W JMAX JA JC JMAX JA JC T = 125C, = 28C/W, = 10C/W JMAX JA JC TAB IS OUT, MUST BE SOLDERED TO OUT ON THE PCB. EXPOSED PAD (PIN 9) IS OUT, MUST BE SOLDERED TO OUT SEE THE APPLICATIONS INFORMATION SECTION. ON THE PCB. SEE THE APPLICATIONS INFORMATION SECTION. 3092fc 2 For more information www.linear.com/LT3092 ion igura on ings bsolu