贴片稳压管三极管-MOS管-样本-150MLM4040

General Description The LM4040 is a precision two-terminal shunt mode, bandgap voltage reference available in fixed reverse breakdown voltages of 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical applica- tions, the LM4040 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm 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 60A to 15mA shunt current capability with low dynamic impedance, ensur- ing 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 -40C to +125C. For a 1.225V output version, refer to the LM4041 data sheet. _Applications Portable, Battery-Powered Equipment Notebook Computers Cell Phones Industrial Process Controls Features o Ultra-Small 3-Pin SC70 Package o 0.1% (max) Initial Accuracy o 100ppm/C (max) Temperature Coefficient Guaranteed over -40C to +125C Temperature Range o Wide Operating Current Range: 60A to 15mA o Low 28VRMSOutput Noise (10Hz to 10kHz) o 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V Fixed Reverse Breakdown Voltages o No Output Capacitors Required o Tolerates Capacitive Loads LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _ Maxim Integrated Products1 - 1 3N.C.* + LM4040 SC70-3/SOT23-3 TOP VIEW 2 *PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2. PARTTEMP RANGE PIN- PACKAGE OUTPUT VOLTAGE (V) LM4040_IM3-2.1-40C to +85C3 SOT23-32.048 LM4040_IX3-2.1-40C to +85C3 SC70-32.048 LM4040_EM3-2.1-40C to +125C3 SOT23-32.048 LM4040_EX3-2.1-40C to +125C3 SC70-32.048 LM4040_IM3-2.5-40C to +85C3 SOT23-32.500 LM4040_IX3-2.5-40C to +85C3 SC70-32.500 LM4040_EM3-2.5-40C to +125C3 SOT23-32.500 LM4040_EX3-2.5-40C to +125C3 SC70-32.500 LM4040_IM3-3.0-40C to +85C3 SOT23-33.000 LM4040_IX3-3.0-40C to +85C3 SC70-33.000 LM4040_EM3-3.0-40C to +125C3 SOT23-33.000 LM4040_EX3-3.0-40C to +125C3 SC70-33.000 LM4040_EX3-3.3-40C to +125C3 SC70-33.300 LM4040_IM3-4.1-40C to +85C3 SOT23-34.096 LM4040_IX3-4.1-40C to +85C3 SC70-34.096 LM4040_EM3-4.1-40C to +125C3 SOT23-34.096 LM4040_EX3-4.1-40C to +125C3 SC70-34.096 LM4040_IM3-5.0-40C to +85C3 SOT23-35.000 LM4040_IX3-5.0-40C to +85C3 SC70-35.000 LM4040_EM3-5.0-40C to +125C3 SOT23-35.000 LM4040_EX3-5.0-40C to +125C3 SC70-35.000 Pin Configuration Selector Guide 19-1787; Rev 3; 3/03 Ordering Information appears at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxims website at www.maxim-. LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages 2_ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS2.048V (IR= 100A, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25C.) (Note 1) 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. Reverse Current (cathode to anode).20mA Forward Current (anode to cathode).10mA ESD per Method 3015.7 Human Body Model .2000V Machine Model.200V Continuous Power Dissipation (TA= +70C) 3-Pin SC70 (derate 2.17mW/C above +70C).174mW 3-Pin SOT23 (derate 4.01mW/C above +70C).320mW Operating Temperature Range LM4040_I_ _ _.-40C to +85C LM4040_E_ _ _ .-40C to +125C Storage Temperature Range.-65C to +150C Junction Temperature.+150C Lead Temperature (soldering, 10s).+300C PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS LM4040A (0.1%)2.0462.0482.050 LM4040B (0.2%)2.0442.0482.052 LM4040C (0.5%)2.0382.0482.058 Reverse Breakdown VoltageVRTA = +25C LM4040D (1.0%)2.0282.0482.068 V LM4040A2.015 LM4040B4.017 LM4040C1023 Reverse Breakdown Voltage Tolerance (Note 2) VR LM4040D2041 mV LM4040A/B/C4565 Minimum Operating CurrentIRMIN LM4040D4570 A IR = 10mA20 LM4040A/B/C15100 IR = 1mA LM4040D15150 Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 100A15 ppm/C LM4040A/B/C0.31.0 IRMIN IR 1mA LM4040D0.31.2 LM4040A/B/C2.58.0 Reverse Breakdown Voltage Change with Operating Current Change 1mA IR 15mA LM4040D2.510.0 mV LM4040A/B0.30.8 LM4040C0.30.9 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4040D0.31.1 Wideband NoiseeNIR = 100A, 10Hz f 10kHz28VRMS Reverse Breakdown Voltage Long-Term Stability VRT = 1000h120ppm LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _3 ELECTRICAL CHARACTERISTICS2.500V (IR= 100A, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25C.) (Note 1) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS LM4040A (0.1%)2.49752.50002.5025 LM4040B (0.2%)2.49502.50002.5050 LM4040C (0.5%)2.48752.50002.5125 Reverse Breakdown VoltageVRTA = +25C LM4040D (1.0%)2.47502.50002.5250 V LM4040A2.019 LM4040B4.021 LM4040C1029 Reverse Breakdown Voltage Tolerance (Note 2) VR LM4040D2049 mV LM4040A/B/C4565 Minimum Operating CurrentIRMIN LM4040D4570 A IR = 10mA20 LM4040A/B/C15100 IR = 1mA LM4040D15150 Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 100A15 ppm/C LM4040A/B/C0.31.0 IRMIN IR 1mA LM4040D0.41.2 LM4040A/B/C2.58.0 Reverse Breakdown Voltage Change with Operating Current Change 1mA IR 15mA LM4040D2.510.0 mV LM4040A/B0.30.8 LM4040C0.30.9 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4040D0.31.1 Wideband NoiseeNIR = 100A, 10Hz f 10kHz35VRMS Reverse Breakdown Voltage Long-Term Stability VRT = 1000h120ppm LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages 4_ ELECTRICAL CHARACTERISTICS3.000V (IR= 100A, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25C.) (Note 1) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS LM4040A (0.1%)2.9973.0003.003 LM4040B (0.2%)2.9943.0003.006 LM4040C (0.5%)2.9853.0003.015 Reverse Breakdown VoltageVRTA = +25C LM4040D (1.0%)2.9703.0003.030 V LM4040A3.022 LM4040B6.026 LM4040C1534 Reverse Breakdown Voltage Tolerance (Note 2) VR LM4040D3059 mV LM4040A/B/C4567 Minimum Operating CurrentIRMIN LM4040D4570 A IR = 10mA20 LM4040A/B/C15100 IR = 1mA LM4040D15150 Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 100A15 ppm/C LM4040A/B/C0.31.0 IRMIN IR 1mA LM4040D0.31.2 LM4040A/B/C2.58.0 Reverse Breakdown Voltage Change with Operating Current Change 1mA IR 15mA LM4040D2.510.0 mV LM4040A/B0.30.8 LM4040C0.30.9 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4040D0.31.1 Wideband NoiseeNIR = 100A, 10Hz f 10kHz45VRMS Reverse Breakdown Voltage Long-Term Stability VRT = 1000h120ppm LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _5 ELECTRICAL CHARACTERISTICS3.300V (IR= 100A, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25C.) (Note 1) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS LM4040A (0.1%)3.29673.30003.3033 LM4040B (0.2%)3.29343.30003.3066 LM4040C (0.5%)3.28353.30003.3165 Reverse Breakdown VoltageVRTA = +25C LM4040D (1.0%)3.26703.30003.3330 V LM4040A3.022 LM4040B6.026 LM4040C1534 Reverse Breakdown Voltage Tolerance (Note 2) VR LM4040D3059 mV LM4040A/B/C4567 Minimum Operating CurrentIRMIN LM4040D4570 A IR = 10mA20 LM4040A/B/C15100 IR = 1mA LM4040D15150 Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 100A15 ppm/C LM4040A/B/C0.31.0 IRMIN IR 1mA LM4040D0.31.2 LM4040A/B/C2.58.0 Reverse Breakdown Voltage Change with Operating Current Change 1mA IR 15mA LM4040D2.510.0 mV LM4040A/B0.30.8 LM4040C0.30.9 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4040D0.31.1 Wideband NoiseeNIR = 100A, 10Hz f 10kHz50VRMS Reverse Breakdown Voltage Long-Term Stability VRT = 1000h120ppm LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages 6_ ELECTRICAL CHARACTERISTICS4.096V (IR= 100A, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25C.) (Note 1) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS LM4040A (0.1%)4.0924.0964.100 LM4040B (0.2%)4.0884.0964.104 LM4040C (0.5%)4.0764.0964.116 Reverse Breakdown VoltageVRTA = +25C LM4040D (1.0%)4.0554.0964.137 V LM4040A4.131 LM4040B8.235 LM4040C2047 Reverse Breakdown Voltage Tolerance (Note 2) VR LM4040D4181 mV LM4040A/B/C5073 Minimum Operating CurrentIRMIN LM4040D5078 A IR = 10mA30 LM4040A/B/C20100 IR = 1mA LM4040D20150 Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 100A15 ppm/C LM4040A/B/C0.51.2 IRMIN IR 1mA LM4040D0.51.5 LM4040A/B/C3.010.0 Reverse Breakdown Voltage Change with Operating Current Change 1mA IR 15mA LM4040D3.013.0 mV LM4040A/B/C0.51.0 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4040D0.51.3 Wideband NoiseeNIR = 100A, 10Hz f 10kHz64VRMS Reverse Breakdown Voltage Long-Term Stability VRT = 1000h120ppm LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _7 Note 1: All devices are 100% production tested at +25C and are guaranteed by design for TA= TMINto 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)(maxT)(VR), where VR/ T is the VRtemperature coefficient, maxT is the maximum difference in temperature from the reference point of +25C to TMINor TMAX, and VRis the reverse breakdown voltage. The total overtemperature tolerance for the different grades in the temperature range where maxT = +65C is shown below: A grade: 0.75% = 0.1% 100ppm/C 65C B grade: 0.85% = 0.2% 100ppm/C 65C C grade: 1.15% = 0.5% 100ppm/C 65C D grade: 1.98% = 1.0% 150ppm/C 65C The total over-temperature tolerance for the different grades in the extended temperature range where max T = +100C is shown below: A grade: 1.1% = 0.1% 100ppm/C 100C B grade: 1.2% = 0.2% 100ppm/C 100C C grade: 1.5% = 0.5% 100ppm/C 100C D grade: 2.5% = 1.0% 150ppm/C 100C Therefore, as an example, the A-grade LM4040-2.5 has an over-temperature reverse breakdown voltage tolerance of 2.5V 0.75% = 19mV. Note 3: Guaranteed by design. ELECTRICAL CHARACTERISTICS5.000V (IR= 100A, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25C.) (Note 1) PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS LM4040A (0.1%)4.9955.0005.005 LM4040B (0.2%)4.9905.0005.010 LM4040C (0.5%)4.9755.0005.025 Reverse Breakdown VoltageVRTA = +25C LM4040D (1.0%)4.9505.0005.050 V LM4040A5.038 LM4040B1043 LM4040C2558 Reverse Breakdown Voltage Tolerance (Note 2) VR LM4040D5099 mV LM4040A/B/C5480 Minimum Operating CurrentIRMIN LM4040D5485 A IR = 10mA30 LM4040A/B/C20100 IR = 1mA LM4040D20150 Average Reverse Voltage Temperature Coefficient (Note 2) VR/T IR = 100A15 ppm/C LM4040A/B/C0.51.4 IRMIN IR 1mA LM4040D0.51.8 LM4040A/B/C3.512.0 Reverse Breakdown Voltage Change with Operating Current Change 1mA IR 15mA LM4040D3.515.0 mV LM4040A/B/C0.51.1 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR LM4040D0.51.5 Wideband NoiseeNIR = 100A, 10Hz f 10kHz80VRMS Reverse Breakdown Voltage Long-Term Stability VRT = 1000h120ppm LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages 8_ LM4040-2.5V TEMPERATURE DRIFT LM4040-02 TEMPERATURE (C) REFERENCE VOLTAGE CHANGE (mV) 1007550250-25 -4 -3 -2 -1 0 1 -5 -50125 LM4040-5.0V TEMPERATURE DRIFT LM4040 toc03 TEMPERATURE (C) REFERENCE VOLTAGE CHANGE (mV) 1007550250-25 -15 -10 -5 0 5 -20 -50125 Typical Operating Characteristics (IR= 100A, SC70-3 package, TA= +25C, unless otherwise noted.) 0 1 2 3 4 5 6 050100 REVERSE CHARACTERISTICS AND MINIMUM OPERATING CURRENT LM4040-01 REVERSE CURRENT (A) REVERSE VOLTAGE (V) LM4040_I_3-5.0LM4040_I_3-4.1 LM4040_I_3-3.0 LM4040_I_3-2.5 LM4040_I_3-2.1 LM4040-5.0V REVERSE VOLTAGE vs. ISHUNT LM4040 toc05 ISHUNT (mA) REVERSE VOLTAGE CHANGE (mV) 15105 1 2 3 4 5 6 0 020 TA = -40C TA = +125C TA = +85C TA = +25C LM4040-2.5V REVERSE VOLTAGE vs. ISHUNT LM4040-04 ISHUNT (mA) REVERSE VOLTAGE CHANGE (mV) 15105 1 2 3 4 5 0 020 TA = +125C TA = -40C TA = +25C TA = +85C LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _9 VGENVR AC-COUPLED +25A -25A 10mV/div LM4040-5.0V LOAD-TRANSIENT RESPONSE LM4040-07 40s/div ISHUNT = 100A 25A RL = 100k, SEE FIGURE 1 VGENVR AC-COUPLED +250A -250A 10mV/div LM4040-2.5V LOAD-TRANSIENT RESPONSE LM4040-08 10s/div ISHUNT = 1mA 250A RL = 10k, SEE FIGURE 1 Typical Operating Characteristics (continued) (IR= 100A, SC70-3 package, TA= +25C, unless otherwise noted.) VGENVR AC-COUPLED +25A -25A 2mV/div LM4040-2.5V LOAD-TRANSIENT RESPONSE LM4040-06 10s/div CH1: VGEN 2V/div CH2: VR AC-COUPLED 2mV/div ISHUNT = 100A 25A, RL = 100k, SEE FIGURE 1 VGENVR AC-COUPLED +2.5mA -2.5mA 20mV/div LM4040-2.5V LOAD-TRANSIENT RESPONSE LM4040-10 10s/div ISHUNT = 10mA 2.5mA RL = 1k, SEE FIGURE 1 VGENVR AC-COUPLED +2.5mA -2.5mA 20mV/div LM4040-5.0V LOAD-TRANSIENT RESPONSE LM4040-11 10s/div ISHUNT = 10mA 2.5mA RL = 1k, SEE FIGURE 1 VGENVR AC-COUPLED +250A -250A 10mV/div LM4040-5.0V LOAD-TRANSIENT RESPONSE LM4040-09 10s/div ISHUNT = 1mA 250A RL = 10k, SEE FIGURE 1 1k VB + - ISHUNT VR RL VGEN Figure 1. Load-Transient Test Circuit LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages 10_ VINVOUT LM4040-5.0V STARTUP CHARACTERISTICS LM4040-13 0405020301060708090 RESPONSE TIME (s) 5V 0V 0V 4V 2V RS = 16k SEE FIGURE 2 0.1k10k1k100k1M LM4040-2.5V OUTPUT IMPEDANCE vs. FREQUENCY LM4040-14 FREQUENCY (Hz) IMPEDANCE () 1000 0.1 1 10 100 IR = 150A IR = 1mA C1 = 1F C1 = 0 Typical Operating Characteristics (continued) (IR= 100A, SC70-3 package, TA= +25C, unless otherwise noted.) VINVOUT LM4040-2.5V STARTUP CHARACTERISTICS LM4040-12 01620812424283236 RESPONSE TIME (s) 5V 0V 0V 2V 1V RS = 30k SEE FIGURE 2 1100101k10k LM4040-2.5V NOISE vs. FREQUENCY LM4040-16 FREQUENCY (Hz) 10,000 100 1000 NOISE (nV/Hz) 1100101k10k LM4040-5.0V NOISE vs. FREQUENCY LM4040-17 FREQUENCY (Hz) 10,000 100 1000 NOISE (nV/Hz) 0.1k10k1k100k1M LM4040-5.0V OUTPUT IMPEDANCE vs. FREQUENCY LM4040-15 FREQUENCY (Hz) IMPEDANCE () 100 0.1 1 10 IR = 150A IR = 1mA C1 = 0 C1 = 1F RS VIN 1Hz RATE 50% DUTY CYCLE VR Figure 2. Startup Characteristics Test Circuit LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages _11 Detailed Description The LM4040 shunt references use the bandgap princi- ple to produce a stable, accurate voltage. The device behaves similarly to an ideal zener diode; a fixed volt- age is maintained across its output terminals when biased with 60A 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 high- voltage power supply. Applications Information The LM4040s 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 RSwhen VSis at a minimum and ILOAD is at a maximum. Maintain a minimum ISHUNTof 60A at all times. The RSvalue should be large enough to keep ISHUNTless than 15mA for proper regulation when VSis maximum and ILOADis at a minimum. To prevent damage to the device, ISHUNTshould never exceed 20mA. Therefore, the value of RSis bounded by the following equation: VS(MIN)- VR / 60A + ILOAD(MAX) RS VS(MAX)- VR / 20mA + ILOAD(MIN) Choosing a larger resistance minimizes the total power dis- sipation in the circuit by reducing the shunt current (PD(TOTAL)= VSISHUNT). Provide a safety margin to incorporate the worst-case tolerance