LM2903WDT

LM2903W Low-power, dual-voltage comparator Datasheet - production data Features • Wide, single supply voltage range or dual supplies +2 V to +36 V or ±1 V to ±18 V D SO-8 (Plastic micropackage) • Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at +5 V) • Low input bias current: 25 nA typ. • Low input offset current: ±5 nA typ. • Input common-mode voltage range includes negative rail P TSSOP8 (Thin shrink small outline package) • Low output saturation voltage: 250 mV typ. (IO = 4 mA) • Differential input voltage range equal to the supply voltage • TTL, DTL, ECL, MOS, CMOS compatible outputs • ESD internal protection: 2 kV S MiniSO8 Pin connections (top view) Description This device consists of two independent lowpower voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. The input common-mode voltage range includes negative rail even though operated from a single power supply voltage. 1 - Output 1 2 - Inverting input 1 3 - Non-inverting input 1 4 - VCC5 - Non-inverting input 2 6 - Inverting input 2 7 - Output 2 8 - VCC+ April 2022 This is information on a product in full production. All pins are protected against electrostatic discharge up to 2 kV. Consequently, the input voltages must not exceed the VCC+ or VCCmagnitudes. DocID22662 Rev 3 1/16 www.st.com Contents LM2903W Contents 1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 5.1 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 5.2 MiniSO8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5.3 TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2/16 DocID22662 Rev 3 LM2903W 1 Schematic diagram Schematic diagram Figure 1. Schematic diagram (1/2 LM2903W) 9&& —$ —$ —$ 9&& —$ 9&& 1RQLQYHUWLQJ LQSXW ,QYHUWLQJ LQSXW 9&& 9&& 9&& 9R 9&& 9&& $069 DocID22662 Rev 3 3/16 16 Absolute maximum ratings and operating conditions 2 LM2903W Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter VCC Supply voltage Vid Differential input voltage Vin Input voltage Vout Output voltage Output short-circuit to ground Rthja Rthjc Thermal resistance junction to case (2) SO-8 MiniSO8 TSSOP8 Tstg Unit ±18 or 36 V VCC- -0.3 to VCC+ +0.3 V 36 V (1) Thermal resistance junction to ambient SO-8 MiniSO8 TSSOP8 Tj Value Infinite (2) 125 190 120 40 39 37 Maximum junction temperature Storage temperature range Machine model (MM) °C -65 to +150 °C 2000 V 200 V 1500 V (4) CDM: charged device model °C/W +150 Human body model (HBM) (3) ESD °C/W (5) 1. Short-circuits from the output to VCC+ can cause excessive heating and possible destruction. The maximum output current is approximately 20 mA and is independent of the VCC+ magnitude. 2. Short-circuits can cause excessive heating and destructive dissipation. Values are typical and for a fourlayer PCB. 3. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 4. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 5. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. Table 2. Operating conditions Symbol 4/16 Parameter Vicm Common mode input voltage range Tmin ≤ Tamb ≤ Tmax Toper Operating free-air temperature range DocID22662 Rev 3 Value Unit 0 to VCC+ -1.5 0 to VCC+ -2 V -40 to +125 °C LM2903W 3 Electrical characteristics Electrical characteristics Table 3. VCC+ = 5 V, VCC- = GND, Tamb = 25 °C (unless otherwise specified) Symbol 1. Parameter Vio Input offset voltage (1) Iio Input offset current Iib Input bias current (2) Test conditions Min. Typ. Max. Unit 1 7 15 mV 5 50 150 nA 25 250 400 nA Tmin ≤ Tamb ≤ Tmax Tmin ≤ Tamb ≤ Tmax Tmin ≤ Tamb ≤ Tmax Avd Large signal voltage gain VCC = 15 V, RL = 15 kΩ, Vo = 1 to 11 V 25 200 ICC Supply current (all comparators) VCC = 5 V, no load VCC = 30 V, no load Vid Differential input voltage (3) VOL Low level output voltage Vid = -1 V, Isink = 4 mA Tmin ≤ Tamb ≤ Tmax 250 IOH High level output current VCC = Vo = 30 V, Vid = 1 V Tmin ≤ Tamb ≤ Tmax 0.1 Isink Output sink current Vid = - 1 V, Vo = 1.5 V tres Small signal response time (4) RL = 5.1 kΩ to VCC+ trel Large signal response time (5) TTL input Vref = +1.4 V, RL = 5.1 kΩ to VCC+ Output signal at 50 % of final value Output signal at 95 % of final value V/mV 0.4 1 1 2.5 mA VCC+ V 400 700 mV 1 6 nA µA 16 mA 1.3 µs 500 1 ns µs At output switch point, VO ≈ 1.4 V, RS = 0 Ω with VCC+ from 5 V to 30 V, and over the full input common-mode range (0 V to VCC+ –1.5 V). 2. The direction of the input current is from the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of input lines. 3. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator provides a proper output state. The low input voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used). 4. The response time specified is for a 100 mV input step with 5 mV overdrive. 5. Maximum values are guaranteed by design and evaluation. DocID22662 Rev 3 5/16 16 Electrical characteristics LM2903W Figure 2. Supply current vs. supply voltage Figure 3. Input current vs. supply voltage Figure 4. Output saturation voltage vs. output current Figure 5. Response time for various input overdrives - negative transition Figure 6. Response time for various input overdrives - positive transition 6/16 DocID22662 Rev 3 LM2903W Typical application schematics 4 Typical application schematics Figure 7. Basic comparator Figure 8. Driving CMOS 5V VCC = 5 V 100 kΩ 15 kΩ +V(ref) +V(ref) 1/2 LM2903 1/ 2 LM2903 VO & -V(ref) -V(ref) Figure 9. Driving TTL Figure 10. Low frequency op-amp 5V 5V 15 kΩ 1/2 LM2903 10 kΩ +V(ref) ~ 1/ 2 LM2903 & el eo -V(ref) 100 kΩ & 0.5 µF 1 kΩ AV = 100 Figure 11. Low frequency op-amp Figure 12. Transducer amplifier 5V 5V (eo = 0 V for el = 0 V) Magnetic pick-up 15 kΩ 1/ 2 LM2903 ~ el 2N 2222 10 kΩ 3 kΩ 1/ 2 LM2903 0.5 µF eo 20 MΩ 100 kΩ eo 1 kΩ AV = 100 DocID22662 Rev 3 10 kΩ 7/16 16 Typical application schematics LM2903W Figure 13. Low frequency op- amp with offset adjust Figure 14. Zero crossing detector (single power supply) 5V 5V Offset adjust 100 kΩ 5V 100 kΩ R2 RS 1 MΩ 5.1 kΩ R1 5.1 kΩ el 15 kΩ 1/ 2 LM2903 el ~ 5.1 kΩ 100 kΩ 1 MΩ 1/ 2 LM2903 2N 2222 1N4148 0.5 µ F R1 100 kΩ 1 kΩ 20 MΩ 10 kΩ eo Figure 15. Limit comparator VCC Figure 16. Split-supply applications - zero crossing detector (12 V) 15 V 10 kΩ 2RS V(ref) high 1/ 2 LM2903 5.1 kΩ Lamp RS eI 1/2 LM2903 eI ~ 2RS 1/2 LM2903 eo ~ 2N 2222 15 V V(ref) low Figure 17. Crystal controlled oscillator Figure 18. Comparator with a negative reference VCC = 15 V 15 V 200 kΩ 2 kΩ 100 kΩ 5.1 kΩ VCC 0.1 µF 1/2 LM2903 0 eo 1/2 LM2903 eI ~ 5V f = 100 kHz 15 V 200 kΩ 8/16 DocID22662 Rev 3 eo LM2903W Typical application schematics Figure 19. Time delay generator VC C = +15 V 10 kΩ 15 kΩ 3 kΩ 200 kΩ 10 MΩ 10 kΩ 1/2 LM2903 V3 VCC V03 to t3 3 kΩ 10 kΩ 1/2 LM2903 VCC 0 to tA 10 MΩ 51 kΩ 10 kΩ VC1 1/2 LM2903 V2 V(ref.) VO2 VCC to t2 0.001 µF Input gating signal 3 kΩ VCC 10 MΩ 51 kΩ V3 VC1 V2 V1 0 t 0 t1 t2 t3 10 kΩ 1/2 LM2903 VCC V O1 t0 t1 V1 t 51 kΩ t4 Figure 20. Two-decade high-frequency VCO VCC 100 kΩ Frequency control voltage input Vcontrol 500 pF 10 kΩ 100 kΩ 3 kΩ 3 kΩ 5.1 kΩ 1/ 2 LM2903 1/ 2 LM2903 0.01 µF 0.1 µF Output 1 VCC /2 20 kΩ 50 kΩ VCC Output 2 20 kΩ 1/ 2 LM2903 VCC /2 VCC = + 30 V Vcontrol +50 V +250 mV 700 Hz fo 100 kHz DocID22662 Rev 3 9/16 16 Package information 5 LM2903W Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 10/16 DocID22662 Rev 3 LM2903W 5.1 Package information SO-8 package information Figure 21. SO-8 package mechanical drawing Table 4. SO-8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.75 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.25 Max. 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 L1 k ccc 1.04 1° 0.040 8° 0.10 DocID22662 Rev 3 1° 8° 0.004 11/16 16 Package information 5.2 LM2903W MiniSO8 package information Figure 22. MiniSO8 package mechanical drawing Table 5. MiniSO8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 1.1 A1 0 A2 0.75 b Max. 0.043 0.15 0 0.95 0.03 0.22 0.4 0.009 0.016 c 0.08 0.23 0.003 0.009 D 2.8 3 3.2 0.11 0.118 0.126 E 4.65 4.9 5.15 0.183 0.193 0.203 E1 2.8 3 3.1 0.11 0.118 0.122 e L 0.85 0.65 0.4 0.6 0.006 0.033 0.8 0.016 0.024 0.95 0.037 L2 0.25 0.01 ccc 0° 0.037 0.026 L1 k 12/16 Inches 8° 0.1 DocID22662 Rev 3 0° 0.031 8° 0.004 LM2903W 5.3 Package information TSSOP8 package information Figure 23. TSSOP8 package mechanical drawing Table 6. TSSOP8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.20 A1 0.05 A2 0.80 b Max. 0.047 0.15 0.002 1.05 0.031 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 D 2.90 3.00 3.10 0.114 0.118 0.122 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 k 0° L 0.45 L1 aaa 1.00 0.60 0.006 0.039 0.041 0.026 8° 0° 0.75 0.018 1 8° 0.024 0.030 0.039 0.10 DocID22662 Rev 3 0.004 13/16 16 Ordering information 6 LM2903W Ordering information Table 7. Order codes Order code Temperature range Package Packing LM2903WDT SO-8 2903W LM2903WYDT (1) SO-8 (Automotive grade) 2903WY LM2903WST -40 °C to +125 °C MiniSO8 Tape & reel K433 LM2903WPT TSSOP8 2903W LM2903WYPT (1) TSSOP8 (Automotive grade) 903WY 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q 002 or equivalent. 14/16 Marking DocID22662 Rev 3 LM2903W 7 Revision history Revision history Table 8. Document revision history Date Revision Changes 18-Jan-2012 1 Initial release. 05-Nov-2012 2 Added TSSOP8 package Modified note 2 in Table 1: Absolute maximum ratings Modified note1 in Table 6: Order codes 14-Apr-2022 3 Added new order code LM2903WST in Table 7 and new Section 5.2: MiniSO8 package information. DocID22662 Rev 3 15/16 16 LM2903W IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2022 STMicroelectronics – All rights reserved 16/16 DocID22662 Rev 3