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| (R) SPX4040 Precision Micropower 2.5V ShuntVoltage Reference FEATURES Trimmed Bandgap to 0.5% and 1% Wide Operating Current 160A to 15mA Extended Temperature Range: -40C to 85C Low Temperature Coefficient 100 ppm/C Replacement in for LM4040 APPLICATIONS Battery Operating Equipment Adjustable Supplies Switching Power Supplies Error Amplifiers N/C 1 8 CATHODE N/C 2 SPX4040 8 Pin nSOIC 7 N/C N/C 3 6 5 N/C N/C ANODE 4 Now Available in Lead Free Packaging Single Supply Amplifier Monitors / VCRs / TVs Personal Computers DESCRIPTION The SPX4040 is a 2-terminal, temperature compensated, bandgap voltage reference that provides a fixed 2.5V output for input currents between 160A and 15mA. The bandgap voltage (2.5V) is independently trimmed from the output voltage to achive a very low temperature coefficient. This trimming technique gives a stable device over the full temperature range (100ppm/C). The SPX4040 is available in 3 pin TO-92, 3 SOT-23 and 8 pin NSOIC packages. The operating temperature range is -40C to 85C. The SPX4040 advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, making it easy to use. TYPICAL APPLICATIONS CIRCUIT Cathode (K) R + R 2.5V Anode (A) Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS Anode-Cathode Forward Current, (<10ms) IAK ............................. 10mA Anode-Cathode Reverse Current IKA ........................................... 20mA Continuous Power Dissipation at 25C PD TO-92 ..................................................................... 550mW SOT-23 .................................................................. 300 mW SOIC-8 .................................................................... 525mW Junction Temperature TJ ........................................................... 150 C Storage Temperature TSTG .............................................. -65 to 150 C TYPICAL THERMAL RESISTANCES PACKAGE TO-92 SOT-23 SOIC-8 0JA 0JC TYPICAL DERATING 6.3 mW/C 1.7 mW/C 5.7 mW/C 160C/W 80C/W 575C/W 150C/W 175C/W 45C/W Typical deratings of the thermal resistances are given for ambient temperature >25C. NOTE: Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. ELECTRICAL CHARACTERISTICS Electrical characteristics at IN = 1000A and TA = +25C unless otherwise specified. PARAMETERS Reverse Breakdown Voltage Reverse Breakdown Tolerance Output Impedance Noise Voltage Tempco Turn-on Setting Temp. Range (ambient) 0.1KHzf10Hz Note 1 1.0% of VOUT 0.16 -40 30 15 85 0.16 -40 CONDITIONS IR = 500 A IR = 500A -40C < TA < 85C 0.60 15 100 30 15 85 MIN 2.4875 TYP MAX MIN 2.475 TYP 2.500 MAX 2.525 25 49 0.60 15 100 0.8 UNITS V mV mV V p-p ppm/C Sec mA C SPX4040A-2.5 2.500 2.5125 12 29 0.8 SPX4040-2.5 Operating Current Range Note 2 Notes: 1. Three-point measurement guarantees the error band over the specified temperature range. 2. Optimum performance is obtained at current below 1000A. CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC) ppm 0 % 0 mV 0 VKA TC in mV/C = T VKA(mV) TA -10 5000 0.5 TC in % /C = ( VKA VKA at 25C ) x 100 TA 0 15 30 45 60 75 85 TC in ppm/C = ( VKA VKA at 25C TA ) x 106 Junction Temperature (C) 0.07 mV/C 0.003 %/C 27 ppm/C Figure 1. VKA VS Temperature. Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 2 TYPICAL PERFORMANCE CHARACTERISTICS 150 VIN VKA IK Cathode Current (mA) 125 100 75 50 25 0 -25 -50 -75 -100 -2 VKA = 2.5V 0C to 85C IK -1 0 1 2 VKA Cathode Voltage (V) 3 Figure 2. Test Circuit for IKREVERSE, VKA = 2.5V 270 240 210 VKA = 2.5V 0 to 105C Figure 3. High Current Operating Characteristics 70 60 IK Cathode Current (A) 180 150 120 90 60 30 0 -30 -60 -1.0 105C 25C -0C Noise Voltage nV/Hz 50 40 30 20 10 0 VKA = 2.5V IK = 10mA TA = 25C 0 1.0 2.0 VKA Cathode Voltage (V) 3.0 10 100 1K 10K 100K f Frequency (Hz) Figure 4. Low Current Operating Characteristics Figure 5. Noise Voltage VS Frequency 0.150 ZKA Dynamic Impedance () 0.125 VKA = 2.5V IKA = 1 to 15mA f 1kHz VIN 0.100 0.075 VOUT 0.050 0.025 0.0 -60 -30 0 30 60 85 TA - Free Air Temperature Figure 6. Low Frequency Dynamic Output Impedance VS. TAMBIENT Figure 7. Frequency = 100kHz, IK = 10mA, TA = 25C Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 3 TYPICAL PERFORMANCE CHARACTERISTICS VIN 250 VOUT IK fp = 100kHz 50 ZKA Dynamic Impedance () 100 TA = 25 C IK =1 to 15mA 10 1.0 0.1 0.01 1K 10K 100K 1M 10M GND Figure 8. Test Circuit for Pulse Response f Frequency (Hz) Figure 9. Dynamic Output Impedance TA = 25C, IK = 1 to 15mA 100 10 IKOFF Cathode Current 1 VKA = 2.5V 0.1 0.01 -50 0 50 100 150 TA Ambient Temperature (C) Figure 10. Off State Leakage APPLICATION INFORMATION This device is designed for stable operation and has no need of an external capacitor between pins 4 and 8. The reference remains stable if a bypass capacitor is used. SOT-23 The SPX4040 in the SOT-23 package has a parasitic Schottky diode between pin 3 and pin 1. Pin 1 of SOT-23 must float or be connected to pin 3. Conventional Shunt Regulator In a conventional shunt regulator application (see Figure 11), an external series resistor (RS) is connected between the supply voltage and the Date: 1/19/05 SPX4040. RS determines the current that flows through the load (IL) and the reference (IQ). Since load current and supply voltage may vary, RS should be small enough to supply at least the minimum acceptable IQ to the reference even when the supply voltage is at its minimum and the load current is at its maximum value. When the supply voltage is at its maximum and IL is at its minimum, RS should be large enough so that the current flowing through the SPX4040 is less than 15mA. RS is determined by the supply voltage (VS), the load and operating current (IL and IQ), reference's reverse breakdown voltage (VR). RS = (VS-VR)/(IL+IQ) (c) Copyright 2005 Sipex Corporation SPX4040 Micropower 2.5V Shunt Voltage Reference 4 TYPICAL PERFORMANCE CHARACTERISTICS VS 1M IQ VIN = 15V RS IQ + IL 2 + 7 6 8 4 LM4250C 10V 150pF 3.5M VR IL 3 _ VOUT 22M IQ SPX4040 SPX4040-2.5 1.17M IQ 2A standby current Figure 11. SPX4040 Fixed Shunt Regulator Application Figure 12. Micropower 10V Reference 30V * IOUT = 5.0V R2 SPX4040-2.5 3.0V 3k R1 100k C1 150pF 2 - 7 6 2.5V SPX4040-2.5 R2 LM312 3 + 4 IOUT* 2.5V to 27V Figure 13. Precision 1A to mA Current Source Figure 14. Reference from 3.0V Battery VIN = 3.3V to 30V LM334 4.3k 2.5V SPX4040-2.5 Figure 15. Wide Input Range Reference Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 5 PACKAGE: 8 PIN NSOIC D e O E/2 E1/2 E1 L2 E Seating Plane O1 L1 1 L Gauge Plane O b VIEW C INDEX AREA (D/2 X E1/2) TOP VIEW A A1 Seating Plane A2 SIDE VIEW 8 Pin NSOIC JEDEC MO-012 (AA) Variation MIN NOM MAX SYMBOL A 1.35 1.75 A1 0.1 0.25 A2 1.25 1.65 b 0.31 0.51 c 0.17 0.24 4.90 BSC D 6.00 BSC E 3.90 BSC E1 1.27 BSC e L 0.4 1.27 1.04 REF L1 0.25 BSC L2 o 0 8 o1 5 15 Note: Dimensions in (mm) B B SEE VIEW C b c BASE METAL SECTION B-B WITH PLATING Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 6 PACKAGE: 3 PIN SOT-23 D b 3 B B E1 E SEE VIEW C VIEW A-A 1 e 2 e1 L L1 Gauge Plane Seating Plane O VIEW C A A A2 Seating Plane 3 Pin SOT-23 SYMBOL A A1 A2 b c D e e1 E E1 L L1 o JEDEC TO-236 (AB) Variation MIN NOM MAX 0.89 1.12 0.01 0.1 0.88 0.95 1.02 0.3 0.5 0.08 0.2 2.8 2.9 3.04 0.95 BSC 1.90 BSC 0.95 2.64 1.2 1.3 1.4 0.4 0.5 0.6 0.54 REF 0 8 A C A1 SIDE VIEW b WITH PLATING c Note: Dimensions in (mm) BASE METAL SECTION B-B Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 7 PACKAGE: 3 PIN TO-92 L e e1 W D A b S1 SYMBOL A b E e e1 L R S1 W D a 3 Pin TO-92 MIN NOM 0.17 0.014 0.13 0.95 0.045 0.5 0.085 0.045 0.016 0.175 4 - MAX 0.195 0.02 0.155 0.105 0.055 0.61 0.095 0.06 0.022 0.195 6 R E Note: Dimensions in (inches) a(2x) Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 8 PACKAGE PINOUTS 8-Pin SOIC (S) N/C N/C N/C 1 2 3 4 8 7 6 5 + N/C N/C N/C SOT-23-3 (M) 1 1 TO-92 (N) + 2 3 +2 -3 Bottom View Top View - Top View ORDERING INFORMATION PART NUMBER ACC OUTPUT VOLTAGE PACKAGES SPX4040AM-2.5 .................. 0.5% ....................... 2.5V ........................... 3-Pin SOT-23 SPX4040AM-2.5/TR ............ 0.5% ....................... 2.5V ........................... 3-Pin SOT-23 SPX4040AN-2.5 .................. 0.5% ....................... 2.5V ............................. 3-Pin TO-92 SPX4040AN-2.5/TR ............ 0.5% ....................... 2.5V ............................. 3-Pin TO-92 SPX4040AS-2.5 .................. 0.5% ....................... 2.5V ............................ 8-Pin NSOIC SPX4040AS-2.5/TR ............ 0.5% ....................... 2.5V ............................ 8-Pin NSOIC SPX4040M-2.5 .................... 1.0% ....................... 2.5V ........................... 3-Pin SOT-23 SPX4040M-2.5/TR .............. 1.0% ....................... 2.5V ........................... 3-Pin SOT-23 SPX4040N-2.5 .................... 1.0% ....................... 2.5V ............................. 3-Pin TO-92 SPX4040N-2.5/TR .............. 1.0% ....................... 2.5V ............................. 3-Pin TO-92 SPX4040S-2.5 ..................... 1.0% ....................... 2.5V ............................ 8-Pin NSOIC SPX4040S-2.5/TR ............... 1.0% ....................... 2.5V ............................ 8-Pin NSOIC Available in lead free packaging. To order add "-L" suffix to part number. Example: SPX4040S-2.5/TR = standard; SPX4040S-L-2.5/TR = lead free /TR = Tape and Reel Pack quantity is 2,000 for TO-92, 2,500 for NSOIC and SOT-23. CLICK HERE TO ORDER SAMPLES Corporation ANALOG EXCELLENCE Sipex Corporation Headquarters and Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600 Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. Date: 1/19/05 SPX4040 Micropower 2.5V Shunt Voltage Reference (c) Copyright 2005 Sipex Corporation 9 |
Price & Availability of SPX4040N-25TR
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