LM4041 19-1704 Rev 5 1/09 Improved Precision Micropower Shunt Voltage Reference General Description Features The LM4041 is a precision two-terminal shunt mode, Ultra-Small 3-Pin SC70 Package bandgap voltage reference with a fixed reverse break- 0.1% (max) Initial Accuracy down voltage of 1.225V. Ideal for space-critical appli- 100ppm/C (max) Temperature Coefficient cations, the LM4041 is offered in the subminiature 3-pin Guaranteed over -40C to +125C Temperature SC70 surface-mount package (1.8mm 1.8mm), 50% Range smaller than comparable devices in SOT23 surface- mount packages (SOT23 versions are also available). Wide Operating Current Range: 60A to 12mA Laser-trimmed resistors ensure precise initial accuracy. Low 20V Output Noise (10Hz to 10kHz) RMS With a 100ppm/C temperature coefficient, the device 1.225V Fixed Reverse Breakdown Voltage is offered in four grades of initial accuracy ranging from No Output Capacitors Required 0.1% to 1%. The LM4041 has a 60A to 12mA shunt current capability with low dynamic impedance, ensur- Tolerates Capacitive Loads ing stable reverse-breakdown voltage accuracy over a wide range of operating temperatures and currents. Ordering Information The LM4041 does not require an external stabilizing PIN- TOP capacitor while ensuring stability with any capacitive PART TEMP RANGE PACKAGE MARK load. LM4041AIX3-1.2+T -40C to +85C 3 SC70-3 ABF The LM4041 is guaranteed over the temperature range LM4041AIM3-1.2+T -40C to +85C 3 SOT23-3 FZEB -40C to +125C. LM4041AEX3-1.2+T -40C to +125C 3 SC70-3 ALB LM4041AEM3-1.2+T -40C to +125C 3 SOT23-3 FZNC LM4041BIX3-1.2+T -40C to +85C 3 SC70-3 ABG LM4041BIM3-1.2+T -40C to +85C 3 SOT23-3 FZEC Applications LM4041BEX3-1.2+T -40C to +125C 3 SC70-3 ALC LM4041BEM3-1.2+T -40C to +125C 3 SOT23-3 FZND Portable, Battery-Powered Equipment LM4041CIX3-1.2+T -40C to +85C 3 SC70-3 ABH Notebook Computers LM4041CIM3-1.2+T -40C to +85C 3 SOT23-3 FZED Cell Phones LM4041CEX3-1.2+T -40C to +125C 3 SC70-3 ALD Industrial Process Controls LM4041CEM3-1.2+T -40C to +125C 3 SOT23-3 FZNE LM4041DIX3-1.2+T -40C to +85C 3 SC70-3 ABI LM4041DIM3-1.2+T -40C to +85C 3 SOT23-3 FZEE LM4041DEX3-1.2+T -40C to +125C 3 SC70-3 ALE LM4041DEM3-1.2+T -40C to +125C 3 SOT23-3 FZNF Pin Configuration Note: For leaded version, contact factory. *See Selector Guide for a listing of LM4041 Output Voltage, Initial Accuracy, and Temperature Coefficient specifications. TOP VIEW +Denotes a lead(Pb)-free/RoHS-compliant package. Selector Guide + 1 INITIAL OUTPUT 3 N.C.* TEMPCO LM4041 PART ACCURACY VOLTAGE (ppm/C) (%) (V) - 2 LM4041A -1.2-T 0.1 1.225 100 SC70-3/SOT23-3 LM4041B -1.2-T 0.2 1.225 100 LM4041C -1.2-T 0.5 1.225 100 *PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2. LM4041D -1.2-T 1.0 1.225 150 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Improved Precision Micropower Shunt Voltage Reference ABSOLUTE MAXIMUM RATINGS Reverse Current (cathode to anode) ..................................20mA Operating Temperature Range Forward Current (anode to cathode) ..................................10mA LM4041 I ..................................................-40C to +85C Continuous Power Dissipation (T = +70C) LM4041 E ..............................................-40C to +125C A 3-Pin SC70 (derate 2.17mW/C above +70C)............174mW Storage Temperature Range .............................-65C to +150C 3-Pin SOT23 (derate 4.01mW/C above +70C)..........320mW Junction Temperature......................................................+150C Lead Temperature (soldering, 10s) ................................+300 C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (I = 100A, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 1) R A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LM4041A (0.1%) 1.2238 1.2250 1.2262 LM4041B (0.2%) 1.2226 1.2250 1.2275 Reverse Breakdown Voltage V T = +25C V R A LM4041C (0.5%) 1.2189 1.2250 1.2311 LM4041D (1.0%) 1.2128 1.2250 1.2373 LM4041A (0.1%) 1.2 9.2 LM4041B (0.2%) 2.4 10.4 Reverse Breakdown Voltage V mV R Tolerance (Note 2) LM4041C (0.5%) 6.0 14 LM4041D (1.0%) 12 24 LM4041A/B/C 45 60 Minimum Operating Current I A RMIN LM4041D 45 65 I = 10mA 20 R Average Reverse Voltage LM4041A/B/C 15 100 Temperature Coefficient V /T I = 1mA ppm/C R R LM4041D 15 150 (Notes 2 and 3) I = 100A 15 R LM4041A/B/C 0.7 1.5 I I 1mA RMIN R Reverse Breakdown Voltage LM4041D 0.7 2.0 Change with Operating V /I mV R R LM4041A/B/C 2.5 8.0 Current Change 1mA I 12mA R LM4041D 2.5 10.0 LM4041A/B/C 0.5 1.5 Reverse Dynamic I = 1mA, f = 120Hz, R Z R Impedance (Note 3) I = 0.1I AC R LM4041D 0.5 2.0 2 LM4041