LM4040CIM3-5.0+T

Click here for production status of specific part numbers. LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages General Description The LM4040 is a precision, two-terminal shunt mode, bandgap voltage reference available in fixed reversebreakdown voltages of 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical applications, the LM4040 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount packages (SOT23 versions are also available). Laser-trimmed resistors ensure precise initial accuracy. With a 100ppm/°C temperature coefficient, the device is offered in four grades of initial accuracy ranging from 0.1% to 1%. The LM4040 has a 60μA to 15mA shunt current capability with low dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. The LM4040 does not require an external stabilizing capacitor while ensuring stability with any capacitive load. The LM4040 is guaranteed over the temperature range of -40°C to +125°C. For a 1.225V output version, refer to the LM4041 data sheet. Applications ●● ●● ●● ●● ●● Portable, Battery-Powered Equipment Notebook Computers Cell Phones Industrial Process Controls Automotive 19-1787; Rev 12; 5/19 Benefits and Features ●● Ultra-Small 3-Pin SC70 Package ●● 0.1% (max) Initial Accuracy ●● 100ppm/°C (max) Temperature Coefficient Guaranteed Over -40°C to +125°C Temperature Range ●● Wide Operating Current Range: 60μA to 15mA ●● Low 28μVRMS Output Noise (10Hz to 10kHz) ●● 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V Fixed Reverse-Breakdown Voltages ●● No Output Capacitors Required ●● Tolerates Capacitive Loads ●● AEC-Q100 Qualified - Refer to Ordering Information table for /V parts Ordering Information appears at end of data sheet. LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Absolute Maximum Ratings Reverse Current (cathode to anode)..................................20mA Forward Current (anode to cathode)...................................10mA Continuous Power Dissipation (TA = +70°C) 3-Pin SC70 (derate 2.90mW/°C above +70°C)............235mW 3-Pin SOT23 (derate 3mW/°C above +70°C)...........238.1mW Operating Temperature Range LM4040_I_ _ _................................................ -40°C to +85°C LM4040_E_ _ _............................................. -40°C to +125°C Storage Temperature Range............................. -65°C to +150°C Junction Temperature.......................................................+150°C Lead Temperature (soldering, 10s).................................. +300°C Soldering Temperature (reflow)........................................ +260°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. Package Information 3 SOT23 PACKAGE CODE U3+1 Outline Number 21-0051 Land Pattern Number 90-0179 Thermal Resistance, Single-Layer Board: Junction to Ambient (θJA) N/A Junction to Case (θJC) N/A Thermal Resistance, Four-Layer Board: Junction to Ambient (θJA) 336°C/W Junction to Case (θJC) 110.10°C/W 3 SC70 PACKAGE CODE X3+2 Outline Number 21-0075 Land Pattern Number 90-0208 Thermal Resistance, Single-Layer Board: Junction to Ambient (θJA) 340°C/W Junction to Case (θJC) 115°C/W Thermal Resistance, Four-Layer Board: Junction to Ambient (θJA) 340.40°C/W Junction to Case (θJC) 120°C/W For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. www.maximintegrated.com Maxim Integrated │  2 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Electrical Characteristics—2.048V (IR = 100μA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2 and 3) SYMBOL VR VR IRMIN ∆VR/∆T TYP MAX 2.046 2.048 2.050 LM4040B (0.2%) 2.044 2.048 2.052 LM4040C (0.5%) 2.038 2.048 2.058 LM4040D (1.0%) 2.028 2.048 2.068 LM4040A ±2.0 ±15 LM4040B ±4.0 ±17 LM4040C ±10 ±23 LM4040D ±20 ±41 LM4040A/B/C 45 65 LM4040D 45 70 IR = 10mA ±20 IR = 1mA IRMIN ≤ IR ≤ 1mA 1mA ≤ IR ≤ 15mA Reverse Dynamic Impedance (Note 3) ZR Wideband Noise eN www.maximintegrated.com TA = +25°C MIN LM4040A (0.1%) LM4040A/B/C ±15 ±100 LM4040D ±15 ±150 IR = 100µA Reverse Breakdown Voltage Change with Operating Current Change Reverse Breakdown Voltage Long-Term Stability CONDITIONS ∆VR IR = 1mA, f = 120Hz, IAC = 0.1IR UNITS V mV µA ppm/°C ±15 LM4040A/B/C 0.3 1.0 LM4040D 0.3 1.2 LM4040A/B/C 2.5 8.0 LM4040D 2.5 10.0 LM4040A/B 0.3 0.8 LM4040C 0.3 0.9 LM4040D 0.3 1.1 mV Ω IR = 100µA, 10Hz ≤ f ≤ 10kHz 28 µVRMS T = 1000h 120 ppm Maxim Integrated │  3 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Electrical Characteristics—2.500V (IR = 100μA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2 and 3) SYMBOL VR VR IRMIN ∆VR/∆T TYP MAX 2.4975 2.5000 2.5025 LM4040B (0.2%) 2.4950 2.5000 2.5050 LM4040C (0.5%) 2.4875 2.5000 2.5125 LM4040D (1.0%) 2.4750 2.5000 2.5250 LM4040A ±2.0 ±19 LM4040B ±4.0 ±21 LM4040C ±10 ±29 LM4040D ±20 ±49 LM4040A/B/C 45 65 LM4040D 45 70 IR = 10mA ±20 TA = +25°C IR = 1mA IRMIN ≤ IR ≤ 1mA 1mA ≤ IR ≤ 15mA Reverse Dynamic Impedance (Note 3) ZR Wideband Noise eN www.maximintegrated.com MIN LM4040A (0.1%) LM4040A/B/C ±15 ±100 LM4040D ±15 ±150 IR = 100µA Reverse Breakdown Voltage Change with Operating Current Change Reverse Breakdown Voltage Long-Term Stability CONDITIONS ∆VR IR = 1mA, f = 120Hz, IAC = 0.1IR UNITS V mV µA ppm/°C ±15 LM4040A/B/C 0.3 1.0 LM4040D 0.4 1.2 LM4040A/B/C 2.5 8.0 LM4040D 2.5 10.0 LM4040A/B 0.3 0.8 LM4040C 0.3 0.9 LM4040D 0.3 1.1 mV Ω IR = 100µA, 10Hz ≤ f ≤ 10kHz 35 µVRMS T = 1000h 120 ppm Maxim Integrated │  4 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Electrical Characteristics—3.000V (IR = 100μA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2 and 3) SYMBOL VR VR IRMIN ∆VR/∆T TYP MAX 2.997 3.000 3.003 LM4040B (0.2%) 2.994 3.000 3.006 LM4040C (0.5%) 2.985 3.000 3.015 LM4040D (1.0%) 2.970 3.000 3.030 LM4040A ±3.0 ±22 LM4040B ±6.0 ±26 LM4040C ±15 ±34 TA = +25°C LM4040D ±30 ±59 LM4040A/B/C 45 67 LM4040D 45 70 IR = 10mA ±20 IR = 1mA IRMIN ≤ IR ≤ 1mA 1mA ≤ IR ≤ 15mA Reverse Dynamic Impedance (Note 3) ZR Wideband Noise eN www.maximintegrated.com MIN LM4040A (0.1%) LM4040A/B/C ±15 ±100 LM4040D ±15 ±150 IR = 100µA Reverse Breakdown Voltage Change with Operating Current Change Reverse Breakdown Voltage Long-Term Stability CONDITIONS ∆VR IR = 1mA, f = 120Hz, IAC = 0.1IR UNITS V mV µA ppm/°C ±15 LM4040A/B/C 0.3 1.0 LM4040D 0.3 1.2 LM4040A/B/C 2.5 8.0 LM4040D 2.5 10.0 LM4040A/B 0.3 0.8 LM4040C 0.3 0.9 LM4040D 0.3 1.1 mV Ω IR = 100µA, 10Hz ≤ f ≤ 10kHz 45 µVRMS T = 1000h 120 ppm Maxim Integrated │  5 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Electrical Characteristics—3.300V (IR = 100μA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2 and 3) SYMBOL VR VR IRMIN ∆VR/∆T TYP MAX 3.2967 3.3000 3.3033 LM4040B (0.2%) 3.2934 3.3000 3.3066 LM4040C (0.5%) 3.2835 3.3000 3.3165 LM4040D (1.0%) 3.2670 3.3000 3.3330 LM4040A ±3.0 ±22 LM4040B ±6.0 ±26 LM4040C ±15 ±34 TA = +25°C LM4040D ±30 ±59 LM4040A/B/C 45 67 LM4040D 45 70 IR = 10mA ±20 IR = 1mA IRMIN ≤ IR ≤ 1mA 1mA ≤ IR ≤ 15mA Reverse Dynamic Impedance (Note 3) ZR Wideband Noise eN www.maximintegrated.com MIN LM4040A (0.1%) LM4040A/B/C ±15 ±100 LM4040D ±15 ±150 IR = 100µA Reverse Breakdown Voltage Change with Operating Current Change Reverse Breakdown Voltage Long-Term Stability CONDITIONS ∆VR IR = 1mA, f = 120Hz, IAC = 0.1IR UNITS V mV µA ppm/°C ±15 LM4040A/B/C 0.3 1.0 LM4040D 0.3 1.2 LM4040A/B/C 2.5 8.0 LM4040D 2.5 10.0 LM4040A/B 0.3 0.8 LM4040C 0.3 0.9 LM4040D 0.3 1.1 mV Ω IR = 100µA, 10Hz ≤ f ≤ 10kHz 50 µVRMS T = 1000h 120 ppm Maxim Integrated │  6 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Electrical Characteristics—4.096V (IR = 100μA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2 and 3) SYMBOL VR VR IRMIN ∆VR/∆T CONDITIONS MIN TYP MAX LM4040A (0.1%) 4.092 4.096 4.100 LM4040B (0.2%) 4.088 4.096 4.104 LM4040C (0.5%) 4.076 4.096 4.116 LM4040D (1.0%) 4.055 4.096 4.137 LM4040A ±4.1 ±31 LM4040B ±8.2 ±35 LM4040C ±20 ±47 LM4040D ±41 ±81 LM4040A/B/C 50 73 LM4040D 50 78 IR = 10mA ±30 TA = +25°C IR = 1mA LM4040A/B/C ±20 ±100 LM4040D ±20 ±150 IR = 100µA IRMIN ≤ IR ≤ 1mA Reverse Breakdown Voltage Change with Operating Current Change 1mA ≤ IR ≤ 15mA UNITS V mV µA ppm/°C ±15 LM4040A/B/C 0.5 1.2 LM4040D 0.5 1.5 LM4040A/B/C 3.0 10.0 LM4040D 3.0 13.0 LM4040A/B/C 0.5 1.0 LM4040D 0.5 1.3 mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR Wideband Noise eN IR = 100µA, 10Hz ≤ f ≤ 10kHz 64 µVRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability www.maximintegrated.com ∆VR Ω Maxim Integrated │  7 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Electrical Characteristics—5.000V (IR = 100μA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2 and 3) SYMBOL VR VR IRMIN ∆VR/∆T CONDITIONS TA = +25°C MIN TYP MAX LM4040A (0.1%) 4.995 5.000 5.005 LM4040B (0.2%) 4.990 5.000 5.010 LM4040C (0.5%) 4.975 5.000 5.025 LM4040D (1.0%) 4.950 5.000 5.050 LM4040A ±5.0 ±38 LM4040B ±10 ±43 LM4040C ±25 ±58 LM4040D ±50 ±99 LM4040A/B/C 54 80 LM4040D 54 85 IR = 10mA ±30 IR = 1mA LM4040A/B/C ±20 ±100 LM4040D ±20 ±150 IR = 100µA IRMIN ≤ IR ≤ 1mA Reverse Breakdown Voltage Change with Operating Current Change 1mA ≤ IR ≤ 15mA UNITS V mV µA ppm/°C ±15 LM4040A/B/C 0.5 1.4 LM4040D 0.5 1.8 LM4040A/B/C 3.5 12.0 LM4040D 3.5 15.0 LM4040A/B/C 0.5 1.1 LM4040D 0.5 1.5 mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR Wideband Noise eN IR = 100µA, 10Hz ≤ f ≤ 10kHz 80 µVRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability ∆VR Ω Note 1: All devices are 100% production tested at TA = +25°C and are guaranteed by design for TA = TMIN to TMAX, as specified. Note 2: The overtemperature limit for Reverse Breakdown Voltage Tolerance is defined as the room-temperature Reverse Breakdown Voltage Tolerance ±[(∆VR/∆T)(max∆T)(VR)], where ∆VR/∆T is the VR temperature coefficient, max∆T is the maximum difference in temperature from the reference point of +25°C to TMIN or TMAX, and VR is the reverse breakdown voltage. The total overtemperature tolerance for the different grades in the temperature range where max∆T = +65°C is shown below: A grade: ±0.75% = ±0.1% ±100ppm/°C x 65°C B grade: ±0.85% = ±0.2% ±100ppm/°C x 65°C C grade: ±1.15% = ±0.5% ±100ppm/°C x 65°C D grade: ±1.98% = ±1.0% ±150ppm/°C x 65°C The total over-temperature tolerance for the different grades in the extended temperature range where max ∆T = +100°C is shown below: A grade: ±1.1% = ±0.1% ±100ppm/°C x 100°C B grade: ±1.2% = ±0.2% ±100ppm/°C x 100°C C grade: ±1.5% = ±0.5% ±100ppm/°C x 100°C D grade: ±2.5% = ±1.0% ±150ppm/°C x 100°C Therefore, as an example, the A-grade LM4040-2.5 has an over-temperature reverse breakdown voltage tolerance of ±2.5V x 0.75% = ±19mV. Note 3: Guaranteed by design. www.maximintegrated.com Maxim Integrated │  8 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Typical Operating Characteristics (IR = 100μA, SC70-3 package, TA = +25°C, unless otherwise noted.) 3 2 LM4040_I_3-2.5 1 0 LM4040_I_3-2.1 0 50 -1 -2 -3 -4 -5 100 -50 REVERSE CURRENT (µA) 25 50 75 100 TA = +125°C 4 TA = -40°C 3 TA = +25°C TA = +85°C 2 1 0 5 10 ISHUNT (mA) www.maximintegrated.com 125 LM4040 toc03 0 -5 -10 -15 -20 -25 -50 TEMPERATURE (°C) LM4040-04 REVERSE VOLTAGE CHANGE (mV) 0 15 20 0 25 50 75 100 125 TEMPERATURE (°C) LM4040-2.5V REVERSE VOLTAGE vs. ISHUNT 5 0 -25 5 LM4040-5.0V REVERSE VOLTAGE vs. ISHUNT 6 LM4040 toc05 LM4040_I_3-3.0 0 REVERSE VOLTAGE CHANGE (mV) REVERSE VOLTAGE (V) 5 4 1 LM4040-02 LM4040_I_3-5.0 REFERENCE VOLTAGE CHANGE (mV) LM4040_I_3-4.1 LM4040-01 6 LM4040-5.0V TEMPERATURE DRIFT LM4040-2.5V TEMPERATURE DRIFT REFERENCE VOLTAGE CHANGE (mV) REVERSE CHARACTERISTICS AND MINIMUM OPERATING CURRENT TA = -40°C 5 4 TA = +125°C 3 TA = +85°C 2 1 0 TA = +25°C 0 5 10 15 20 ISHUNT (mA) Maxim Integrated │  9 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Typical Operating Characteristics (continued) (IR = 100μA, SC70-3 package, TA = +25°C, unless otherwise noted.) LM4040-2.5V LOAD-TRANSIENT RESPONSE LM4040-5.0V LOAD-TRANSIENT RESPONSE LM4040-06 VGEN VGEN 10mV/div 10µs/div 40µs/div ISHUNT = 1mA ± 250µA RL = 10kΩ, SEE FIGURE 1 LM4040-2.5V LOAD-TRANSIENT RESPONSE LM4040-09 LM4040-5.0V LOAD-TRANSIENT RESPONSE LM4040-10 LM4040-11 +2.5mA VGEN +2.5mA VGEN VGEN +250µA -2.5mA VR AC-COUPLED -250µA 10mV/div 10mV/div 10ms/div ISHUNT = 100µA ± 25µA RL = 100kΩ, SEE FIGURE 1 LM4040-5.0V LOAD-TRANSIENT RESPONSE VR AC-COUPLED -250µA VR AC-COUPLED -25µA CH1: VGEN 2V/div CH2: VR AC-COUPLED 2mV/div ISHUNT = 100µA ± 25µA, RL = 100kΩ, SEE FIGURE 1 20mV/div 10µs/div ISHUNT = 1mA ± 250µA RL = 10kΩ, SEE FIGURE 1 +250µA 10µs/div -2.5mA VR AC-COUPLED VR AC-COUPLED 2mV/div LM4040-08 +25µA VR AC-COUPLED VGEN +25µA -25µA LM4040-2.5V LOAD-TRANSIENT RESPONSE LM4040-07 20mV/div 10µs/div ISHUNT = 10mA ± 2.5mA RL = 1kΩ, SEE FIGURE 1 ISHUNT = 10mA ± 2.5mA RL = 1kΩ, SEE FIGURE 1 ISHUNT VB + - 1kΩ VR RL VGEN Figure 1. Load-Transient Test Circuit www.maximintegrated.com Maxim Integrated │  10 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Typical Operating Characteristics (continued) (IR = 100μA, SC70-3 package, TA = +25°C, unless otherwise noted.) LM4040-5.0V STARTUP CHARACTERISTICS LM4040-13 0V 5V 0V 1V 0V 2V 0 8 C1 = 0 IR = 1mA RS = 16kΩ SEE FIGURE 2 12 16 20 24 28 32 36 0 0.1 10 20 30 40 50 60 70 80 90 0.1k 1k 10k 100k RESPONSE TIME (µs) FREQUENCY (Hz) LM4040-5.0V OUTPUT IMPEDANCE vs. FREQUENCY LM4040-2.5V NOISE vs. FREQUENCY LM4040-5.0V NOISE vs. FREQUENCY 10 IR = 150µA IR = 1µA 1 10,000 1000 1M LM4040-17 10,000 NOISE (nV/√Hz) C1 = 0 LM4040-16 LM4040-15 RESPONSE TIME (µs) NOISE (nV/√Hz) IMPEDANCE (Ω) 100 4 IR = 150µA 10 1 0V RS = 30kΩ SEE FIGURE 2 C1 = 1µF 100 4V VOUT VOUT 2V 1000 IMPEDANCE (Ω) 5V VIN VIN LM4040-12 LM4040-2.5V OUTPUT IMPEDANCE vs. FREQUENCY LM4040-14 LM4040-2.5V STARTUP CHARACTERISTICS 1000 C1 = 1µF 0.1 0.1k 1k 10k 100k 1M 100 1 FREQUENCY (Hz) 10 100 1k 10k 100 1 10 100 1k 10k FREQUENCY (Hz) FREQUENCY (Hz) RS VIN 1Hz RATE 50% DUTY CYCLE VR Figure 2. Startup Characteristics Test Circuit www.maximintegrated.com Maxim Integrated │  11 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Pin Configuration TOP VIEW + 1 + LM4040 3 N.C.* - 2 SC70-3/SOT23-3 *PIN 3 MUST BE LEFT UNCONNECTED OR CONNECTED TO PIN 2. Pin Description PIN NAME 1 + Positive Terminal of the Shunt Reference FUNCTION 2 – Negative Terminal of the Shunt Reference 3 N.C. No connection. Leave this pin unconnected or connected to pin 2. www.maximintegrated.com Maxim Integrated │  12 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Detailed Description The LM4040 shunt references use the bandgap principle to produce a stable, accurate voltage. The device behaves similarly to an ideal zener diode; a fixed voltage is maintained across its output terminals when biased with 60μA to 15mA of reverse current. The LM4040 behaves similarly to a silicon diode when biased with forward currents up 10mA. Figure 3 shows a typical operating circuit. The LM4040 is ideal for providing a stable reference from a highvoltage power supply. VS ISHUNT + ILOAD RS ILOAD VR ISHUNT LM4040 Applications Information The device’s internal pass transistor is used to maintain a constant output voltage (VSHUNT) by sinking the necessary amount of current across a source resistor. The source resistance (RS) is determined from the load current (ILOAD) range, supply voltage (VS) variations, VSHUNT, and desired quiescent current. Choose the value of RS when VS is at a minimum and ILOAD is at a maximum. Maintain a minimum ISHUNT of 60μA at all times. The RS value should be large enough to keep ISHUNT less than 15mA for proper regulation when VS is maximum and ILOAD is at a minimum. To prevent damage to the device, ISHUNT should never exceed 20mA. Therefore, the value of RS is bounded by the following equation: [VS(MIN) - VR ] / [60μA + ILOAD(MAX)] > RS > [VS(MAX) - VR ] / [20mA + ILOAD(MIN)] Choosing a larger resistance minimizes the total power dissipation in the circuit by reducing the shunt current (PD(TOTAL) = VS x ISHUNT). Provide a safety margin to incorporate the worst-case tolerance of the resistor used. Ensure that the resistor’s power rating is adequate, using the following general power equation: PDR = ISHUNT x (VS(MAX) - VSHUNT) Output Capacitance The device does not require an external capacitor for frequency stability and is stable for any output capacitance. www.maximintegrated.com Figure 3. Typical Operating Circuit Temperature Performance The LM4040 typically exhibits an output voltage temperature coefficient within ±15ppm/°C. The polarity of the temperature coefficient may be different from one device to another; some may have positive coefficients, and others may have negative coefficients. High-Temperature Operation The maximum junction temperature of the LM4040 is +150°C. The maximum operating temperature for the LM4040_E_ is +125°C. At a maximum load current of 15mA and a maximum output voltage of 5V, the part will dissipate 75mW of power. The power dissipation limits of the 3-pin SC70 call for a derating value of 2.17mW/°C above +70°C and, therefore, for 75mW of power dissipation, the part will selfheat to 35.56°C above ambient temperature. If the ambient temperature is +125°C, the part operates at 159.56°C, thereby exceeding the maximum junction temperature value of +150°C. For high-temperature operation, care must be taken to ensure the combination of ambient temperature, output power dissipation and package thermal resistance does not conspire to raise the device temperature beyond that listed in the Absolute Maximum Ratings. Either reduce the output load current or the ambient temperature to keep the part within the limits. Maxim Integrated │  13 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Ordering Information OUTPUT VOLTAGE (V) INITIAL ACCURACY (%) TEMPCO (ppm/°C) LM4040AIM3-2.1+T 2.048 0.1 100 LM4040AIX3-2.1+T 2.048 0.1 100 PART PIN-PACKAGE TOP MARK -40°C to +85°C 3 SOT23 FZEF -40°C to +85°C 3 SC70 ABJ TEMP RANGE LM4040BIM3-2.1+T 2.048 0.2 100 -40°C to +85°C 3 SOT23 FZEG LM4040BIX3-2.1+T 2.048 0.2 100 -40°C to +85°C 3 SC70 ABK LM4040CIM3-2.1+T 2.048 0.5 100 -40°C to +85°C 3 SOT23 FZEH LM4040CIX3-2.1+T 2.048 0.5 100 -40°C to +85°C 3 SC70 ABL LM4040DIM3-2.1+T 2.048 1.0 150 -40°C to +85°C 3 SOT23 FZEI LM4040DIX3-2.1+T 2.048 1.0 150 -40°C to +85°C 3 SC70 ABM LM4040AEM3-2.1+T 2.048 0.1 100 -40°C to +125°C 3 SOT23 FZNG LM4040AEX3-2.1+T 2.048 0.1 100 -40°C to +125°C 3 SC70 ALF LM4040BEM3-2.1-T 2.048 0.2 100 -40°C to +125°C 3 SOT23 FZNH LM4040BEX3-2.1-T 2.048 0.2 100 -40°C to +125°C 3 SC70 ALG LM4040CEM3-2.1-T 2.048 0.5 100 -40°C to +125°C 3 SOT23 FZNI LM4040CEX3-2.1+T 2.048 0.5 100 -40°C to +125°C 3 SC70 ALH LM4040DEM3-2.1+T 2.048 1.0 150 -40°C to +125°C 3 SOT23 FZNJ LM4040DEX3-2.1+T 2.048 1.0 150 -40°C to +125°C 3 SC70 ALI LM4040AIM3-2.5+T 2.500 0.1 100 -40°C to +85°C 3 SOT23 FZEJ LM4040AIX3-2.5+T 2.500 0.1 100 -40°C to +85°C 3 SC70 ABN LM4040BIM3-2.5+T 2.500 0.2 100 -40°C to +85°C 3 SOT23 FZEK LM4040BIX3-2.5+T 2.500 0.2 100 -40°C to +85°C 3 SC70 ABO LM4040BIM3-2.5/V+T 2.500 0.2 100 -40°C to +125°C 3 SOT23 FZWL LM4040CIM3-2.5+T 2.500 0.5 100 -40°C to +85°C 3 SOT23 FZEL LM4040CIX3-2.5+T 2.500 0.5 100 -40°C to +85°C 3 SC70 ABP LM4040DIM3-2.5+T 2.500 1.0 150 -40°C to +85°C 3 SOT23 FZEM LM4040DIX3-2.5+T 2.500 1.0 150 -40°C to +85°C 3 SC70 ABQ LM4040AEM3-2.5+T 2.500 0.1 100 -40°C to +125°C 3 SOT23 FZNK LM4040AEX3-2.5+T 2.500 0.1 100 -40°C to +125°C 3 SC70 ALJ LM4040BEM3-2.5+T 2.500 0.2 100 -40°C to +125°C 3 SOT23 FZNL LM4040BEX3-2.5+T 2.500 0.2 100 -40°C to +125°C 3 SC70 ALK LM4040CEM3-2.5+T 2.500 0.5 100 -40°C to +125°C 3 SOT23 FZNM LM4040CEM3-2.5/V+T* 2.500 0.5 100 -40°C to +125°C 3 SOT23 FZVZ LM4040CEX3-2.5+T 2.500 0.5 100 -40°C to +125°C 3 SC70 ALL LM4040DEM3-2.5+T 2.500 1.0 150 -40°C to +125°C 3 SOT23 FZNN LM4040DEX3-2.5+T 2.500 1.0 150 -40°C to +125°C 3 SC70 ALM +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *Denotes future product—contact factory for availability. www.maximintegrated.com Maxim Integrated │  14 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Ordering Information (continued) PART OUTPUT VOLTAGE (V) INITIAL ACCURACY (%) TEMPCO (ppm/°C) TEMP RANGE PIN-PACKAGE TOP MARK LM4040AIM3-3.0+T 3.000 0.1 100 -40°C to +85°C 3 SOT23 FZEN LM4040AIX3-3.0+T 3.000 0.1 100 -40°C to +85°C 3 SC70 ABR LM4040BIM3-3.0+T 3.000 0.2 100 -40°C to +85°C 3 SOT23 FZEO LM4040BIX3-3.0+T 3.000 0.2 100 -40°C to +85°C 3 SC70 ABS LM4040CIM3-3.0+T 3.000 0.5 100 -40°C to +85°C 3 SOT23 FZEP LM4040CIX3-3.0+T 3.000 0.5 100 -40°C to +85°C 3 SC70 ABT LM4040DIM3-3.0+T 3.000 1.0 150 -40°C to +85°C 3 SOT23 FZEQ LM4040DIX3-3.0+T 3.000 1.0 150 -40°C to +85°C 3 SC70 ABU LM4040AEM3-3.0+T 3.000 0.1 100 -40°C to +125°C 3 SOT23 FZNO LM4040AEM3-3.0/V+T 3.000 0.1 100 -40°C to +125°C 3 SOT23 FZWW LM4040AEX3-3.0+T 3.000 0.1 100 -40°C to +125°C 3 SC70 ALN LM4040AEX3-3.0/V+T 3.000 0.1 100 -40°C to +125°C 3 SC70 ALN LM4040BEM3-3.0+T 3.000 0.2 100 -40°C to +125°C 3 SOT23 FZNP LM4040BEX3-3.0+T 3.000 0.2 100 -40°C to +125°C 3 SC70 ALO LM4040CEX3-3.0+T 3.000 0.5 100 -40°C to +125°C 3 SC70 ALP LM4040DEM3-3.0+T 3.000 1.0 150 -40°C to +125°C 3 SOT23 FZNR LM4040DEX3-3.0+T 3.000 1.0 150 -40°C to +125°C 3 SC70 ALQ LM4040AEX3-3.3+T 3.300 0.1 100 -40°C to +125°C 3 SC70 ANY LM4040BEX3-3.3+T 3.300 0.2 100 -40°C to +125°C 3 SC70 ANZ LM4040CEX3-3.3+T 3.300 0.5 100 -40°C to +125°C 3 SC70 AOA LM4040DEX3-3.3+T 3.300 1.0 150 -40°C to +125°C 3 SC70 AOB LM4040AIM3-4.1+T 4.096 0.1 100 -40°C to +85°C 3 SOT23 FZER LM4040AIX3-4.1+T 4.096 0.1 100 -40°C to +85°C 3 SC70 ABV LM4040BIM3-4.1+T 4.096 0.2 100 -40°C to +85°C 3 SOT23 FZES LM4040BIX3-4.1+T 4.096 0.2 100 -40°C to +85°C 3 SC70 ABW LM4040CIM3-4.1+T 4.096 0.5 100 -40°C to +85°C 3 SOT23 FZET LM4040CIX3-4.1+T 4.096 0.5 100 -40°C to +85°C 3 SC70 ABX LM4040DIM3-4.1+T 4.096 1.0 150 -40°C to +85°C 3 SOT23 FZEU LM4040DIX3-4.1+T 4.096 1.0 150 -40°C to +85°C 3 SC70 ABY LM4040AEM3-4.1+T 4.096 0.1 100 -40°C to +125°C 3 SOT23 FZNS LM4040AEX3-4.1+T 4.096 0.1 100 -40°C to +125°C 3 SC70 ALR LM4040BEM3-4.1+T 4.096 0.2 100 -40°C to +125°C 3 SOT23 FZNT LM4040BEM3-4.1/V+T 4.096 0.2 100 -40°C to +125°C 3 SOT23 FZXX LM4040BEX3-4.1+T 4.096 0.2 100 -40°C to +125°C 3 SC70 ALS LM4040CEM3-4.1+T 4.096 0.5 100 -40°C to +125°C 3 SOT23 FZNU +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. www.maximintegrated.com Maxim Integrated │  15 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Ordering Information (continued) OUTPUT VOLTAGE (V) INITIAL ACCURACY (%) TEMPCO (ppm/°C) LM4040CEX3-4.1+T 4.096 0.5 100 -40°C to +125°C 3 SC70 ALT LM4040DEM3-4.1+T 4.096 1.0 150 -40°C to +125°C 3 SOT23 FZNV PART TEMP RANGE PIN-PACKAGE TOP MARK LM4040DEM3-4.1/V+T* 4.096 1.0 150 -40°C to +125°C 3 SOT23 FZWA LM4040DEX3-4.1+T 4.096 1.0 150 -40°C to +125°C 3 SC70 ALU LM4040AIM3-5.0+T 5.000 0.1 100 -40°C to +85°C 3 SOT23 FZEV LM4040AIM3-5.0/V+T* 5.000 0.1 100 -40°C to +85°C 3 SOT23 +FZWB LM4040AIX3-5.0+T 5.000 0.1 100 -40°C to +85°C 3 SC70 ABZ LM4040BIM3-5.0+T 5.000 0.2 100 -40°C to +85°C 3 SOT23 FZEW LM4040BIX3-5.0+T 5.000 0.2 100 -40°C to +85°C 3 SC70 ACA LM4040CIM3-5.0+T 5.000 0.5 100 -40°C to +85°C 3 SOT23 FZEX LM4040CIX3-5.0+T 5.000 0.5 100 -40°C to +85°C 3 SC70 ACB LM4040DIM3-5.0+T 5.000 1.0 150 -40°C to +85°C 3 SOT23 FZEY LM4040DIX3-5.0+T 5.000 1.0 150 -40°C to +85°C 3 SC70 ACC LM4040AEM3-5.0+T 5.000 0.1 100 -40°C to +125°C 3 SOT23 FZNW LM4040AEM3-5.0/V+T 5.000 0.1 100 -40°C to +125°C 3 SOT23 FZWB LM4040AEX3-5.0+T 5.000 0.1 100 -40°C to +125°C 3 SC70 ALV LM4040BEM3-5.0+T 5.000 0.2 100 -40°C to +125°C 3 SOT23 FZNX LM4040BEX3-5.0+T 5.000 0.2 100 -40°C to +125°C 3 SC70 ALW LM4040CEM3-5.0+T 5.000 0.5 100 -40°C to +125°C 3 SOT23 FZNY LM4040CEM3-5.0/V+T 5.000 0.5 100 -40°C to +125°C 3 SOT23 +FZWC LM4040CEX3-5.0+T 5.000 0.5 100 -40°C to +125°C 3 SC70 ALX LM4040DEM3-5.0+T 5.000 1.0 150 -40°C to +125°C 3 SOT23 FZNZ LM4040DEX3-5.0+T 5.000 1.0 150 -40°C to +125°C 3 SC70 ALY +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. *Denotes future product—contact factory for availability. Chip Information PROCESS: BiCMOS www.maximintegrated.com Maxim Integrated │  16 LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 8/00 Initial release 5 7/05 Updated Electrical Characteristics 6 4/11 Updated Selector Guide, Absolute Maximum Ratings, and Ordering Information 1, 2, 12, 13, 14 7 11/11 Add /V+ automotive-qualified identification to the Selector Guide and Ordering Information 1, 12 8 3/13 Updated Ordering Information and removed Selector Guide DESCRIPTION — 2–7 1, 13, 14 9 1/16 Added /V part to Ordering Information table 13 10 10/17 Added AEC-Q100 qualification statement to Benefits and Features section 1 11 10/18 Updated Applications section, Absolute Maximum Ratings, Package Information and Ordering Information 1, 2, 13–15 12 5/19 Updated Applications, Benefits and Features, Absolute Maximum Ratings, Electrical Characteristics, Ordering Information, and added Package Information section 1, 2, 14, 15 For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. ©  2019 Maxim Integrated Products, Inc. │  17