LM2903XK

LM2903 General-Purpose High-Voltage Open-Drain Output Dual Comparator FEATURES • • • • • Supply Range: +3.3V to +36V Low Supply Current 55μA (TYP) per channel at VS = 5V Common-Mode Input Voltage Range Includes Ground Low Output Saturation Voltage Open-Drain Output for Maximum Flexibility SPECIFIED UP TO +125°C • Micro SIZE PACKAGES: SOIC-8(SOP8) • APPLICATIONS • Hysteresis Comparators • • Factory automation & control Industrial Equipment • • • • Test and Measurement Cordless power tool Vacuum robot Wireless Infrastructure DESCRIPTION The LM2903 is the dual comparator version, and the outputs can be connected to other open-collector outputs to achieve wired-AND relationships. It can operate from 3.3V to 36V, and have low power consuming 55µA (TYP) per channel. The LM2903 consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage. The device is the most cost-effective solutions for applications where low offset voltage, high supply voltage capability, low supply current, and space saving are the primary specifications in circuit design for portable consumer products. The LM2903 is available in Green SOIC-8, MSOP-8 packages. It operates over an ambient temperature range of -40°C to +125°C. Device Information (1) PART NUMBER PACKAGE BODY SIZE (NOM) SOIC-8(SOP8) 4.90mm×3.90mm MSOP-8 3.00mm×3.00mm LM2903 (1) REV A.1 For all available packages, see the orderable addendum at the end of the data sheet. 1 / 12 www.run-ic.com LM2903 Revision History Note: Page numbers for previous revisions may different from page numbers in the current version. VERSION A.0 A.1 Change Date 2020.11 2021.03 Change Item Preview version completed Add MSOP-8 package 2 / 12 www.run-ic.com LM2903 Pin Configuration and Functions (Top View) LM2903 OUT A 1 -IN A 2 +IN A 3 V- 4 + A B+ 8 V+ 7 OUTB 6 -IN B 5 +IN B SOIC-8(SOP8)/MSOP-8 Pin Description NAME OUTA -INA +INA V+INB -INB OUTB V+ PIN SOIC-8(SOP8)/MSOP-8 1 2 3 4 5 6 7 8 I/O(1) O I I P I I O P DESCRIPTION Output, channel A Inverting input, channel A Noninverting input, channel A Negative (lowest) power supply Noninverting input, channel B Inverting input, channel B Output, channel B Positive (highest) power supply (1)I=Input, O=Output, P=Power 3 / 12 www.run-ic.com LM2903 SPECIFICATIONS Absolute Maximum Ratings Over operating free-air temperature range (unless otherwise noted) (1) MIN Voltage Current Temperature Supply, Vs=(V+) - (V-) Input pin (IN+, IN-) (2) Signal output pin (3) Signal input pin (IN+, IN-) (2) Signal output pin (3) Output short-circuits (4) Operating range, TA Junction, TJ Storage, Tstg (V-)-0.3 (V-)-0.3 -10 -55 -40 -65 MAX 36 (V+) +0.3 (V+) +0.3 10 55 Continuous 125 150 150 UNIT V mA mA °C (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. (2) Input terminals are diode-clamped to the power-supply rails. Input signals that can swing more than 0.5V beyond the supply rails should be currentlimited to 10mA or less. (3) Output terminals are diode-clamped to the power-supply rails. Output signals that can swing more than 0.5V beyond the supply rails should be currentlimited to ±55mA or less. (4) Short-circuit from output to VCC can cause excessive heating and eventual destruction. ESD Ratings VALUE V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS001, all pins (1) Charged device model (CDM), per JEDEC specification JESD22-C101, all pins (2) UNIT ±2000 V ±1000 Recommended Operating Conditions Over operating free-air temperature range (unless otherwise noted) MIN Supply voltage，Vs= (V+) - (V-） Single-supply Dual-supply NOM 3.3 ±1.65 MAX UNIT 36 ±18 V Thermal Information: LM2903 LM2903 8PINS SOIC-8(SOP-8) 123.6 THERMAL METRIC (1) 8PINS MSOP-8 165 UNIT °C/W RϴJA Junction-to-ambient thermal resistance RϴJC(top) Junction-to-case(top) thermal resistance 70.5 53 °C/W RϴJB ѰJT ѰJB Junction-to-board thermal resistance 66.7 87 °C/W Junction-to-top characterization parameter Junction-to-board characterization parameter Junction-to-case(bottom) thermal resistance 23.5 78.1 N/A 4.9 85 N/A °C/W °C/W °C/W RϴJC(bot) 4 / 12 www.run-ic.com LM2903 PACKAGE/ORDERING INFORMATION Orderable Device Package Type Pin Channel Op Temp(°C) Device Marking(1) Package Qty LM2903XK SOIC-8(SOP8) 8 2 -40°C ~+125°C LM2903 Tape and Reel,4000 LM2903XM MSOP-8 8 2 -40°C ~125°C LM2903 Tape and Reel,4000 NOTE: (1) There may be additional marking, which relates to the lot trace code information(data code and vendor code)，the logo or the environmental category on the device. 5 / 12 www.run-ic.com LM2903 ELECTRICAL CHARACTERISTICS (At TA = +25C, VCM=(Vs/2), Vs=5V, unless otherwise noted.) PARAMETER Vs CONDITIONS Operating Voltage Range 3.3 VS=5V, no load VS=36V, no load, TA=-40C to +125C IQ Quiescent Current VOS Input offset voltage IB Input Bias Current IOS Input Offset Current VCM Common-Mode Voltage Range AVD Large signal differential voltage amplification VOL Low-Level output voltage Isink≤4mA, VID=-1V IOL Output Current(sinking) VO=1.5V; VID=-1V; Vs=5V VS=5V to 36V IOH-LKG MIN LM2903 TYP MAX VS=5V to 36V TA=-40C to +125C TA=25C 36 110 ±0.8 3.5 4 10 10 TA=25C TA=-40C to +125C High-Level Output Leakage Current uA mV -4 TA=-40C to +125C VS=3.3V to 36V VS=3.3V to 36V TA=-40C to +125C VS=15V, Vo=1.4V to 11.4V RL≥15k to (V+) V 180 150 -3.5 UINTS 50 pA 100 nA 50 pA 100 nA (V-) (V+)-1.5 (V-) (V+)-2.0 50 200 200 6 V V/mV 300 23 mV mA (V+) =Vo=5V; VID=1V 80 400 nA (V+) =Vo=36V; VID=1V 100 500 nA Switching Characteristics Vs=5V TPHL Propagation Delay H To L Vs=36V Vs=5V TPLH Propagation Delay L To H Vs=36V RPU=5.1KΩ, Overdrive =10mV RPU=5.1KΩ, Overdrive =100mV RPU=5.1KΩ, Overdrive =10mV RPU=5.1KΩ, Overdrive =100mV RPU=5.1KΩ, Overdrive =10mV RPU=5.1KΩ, Overdrive =100mV RPU=5.1KΩ, Overdrive =10mV RPU=5.1KΩ, Overdrive =100mV 6 / 12 2.5 0.5 1.8 0.7 us 4.1 1.6 3.1 1.4 www.run-ic.com LM2903 TYPICAL CHARACTERISTICS At TA = +25C, Vs=5V, RPULLUP=5.1k, VCM = Vs/2, CL=15pF, unless otherwise noted. Response Time vs Input Overdrives Negative Transition(VCC=5V) 10 9 8 7 6 5 4 3 2 1 0 4 3.5 Time(us) Time(us) 3 2.5 2 1.5 1 0.5 0 0 10 20 30 40 50 60 70 80 90 100 Response Time vs Input Overdrives Positive Transition(VCC=5V) 0 10 20 30 40 50 60 70 80 90 100 Overdrive(mV) Response Time vs Input Overdrives Negative Transition(VCC=36V) 6 2.5 5 2 4 Time(us) Time(us) 3 Overdrive(mV) 1.5 3 1 2 0.5 1 0 Response Time vs Input Overdrives Positive Transition(VCC=36V) 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 Overdrive(mV) 3.5 Saturation Voltage vs Output Sink Current 3.5 Vs=5V Saturation Voltage vs Output Sink Current Vs=36V 3.0 Saturation Voltage(V) 3.0 Saturation Voltage(V) Overdrive(mV) 2.5 2.0 1.5 1.0 0.5 2.5 2.0 1.5 1.0 0.5 0.0 0.0 0 5 10 15 20 25 Output Sinking Current(mA) 0 30 7 / 12 5 10 15 20 25 Output Sinking Current(mA) 30 www.run-ic.com LM2903 Detailed Description Overview The LM2903 family of comparators can operate up to 36V on the supply pin. This standard device has proven ubiquity and versatility across a wide range of applications. This is due to its low power and high speed. The open-drain output allows the user to configure the output's logic low voltage (VOL) and can be utilized to enable the comparator to be used in AND functionality. V+ IN+ IN- + OUT VFigure 1. Functional Block Diagram 8 / 12 www.run-ic.com LM2903 Application and Implementation Application Information LM2903 is typically used to compare a single signal to a reference or two signals against each other. Many users take advantage of the open drain output (logic high with pull-up) to drive the comparison logic output to a logic voltage level to an MCU or logic device. The wide supply range and high voltage capability makes this comparator optimal for level shifting to a higher or lower voltage. Typical Application VLOGIC VLOGIC VSUP VIN + VSUP RPULLUP VIN+ ½ LM2903 Vref RPULLUP + ½ LM2903 CL VIN- CL Figure 2. Single-Ended and Differential Comparator Configurations Detailed Design Procedure When using the device in a general comparator application, determine the following: • Input Voltage Range • Minimum Overdrive Voltage • Output and Drive Current • Response Time Input Voltage Range When choosing the input voltage range, the input common mode voltage range (VICR) must be taken in to account. If temperature operation is below 25°C the VICR can range from 0 V to VCC– 2.0 V. This limits the input voltage range to as high as VCC– 2.0 V and as low as 0 V. Operation outside of this range can yield incorrect comparisons. 9 / 12 www.run-ic.com LM2903 Layout Layout Guidelines For accurate comparator applications without hysteresis, it is important maintain a stable power supply with minimized noise and glitches. To achieve this, it is best to add a bypass capacitor between the supply voltage and ground. This should be implemented on the positive power supply and negative supply (if available). If a negative supply is not being used, do not put a capacitor between the IC's GND pin and system ground. Minimize coupling between outputs and inverting inputs to prevent output oscillations. Do not run output and inverting input traces in parallel unless there is a VCC or GND trace between output and inverting input traces to reduce coupling. When series resistance is added to inputs, place resistor close to the device. Layout Example Ground Better 0.1μF Input Resistors Close to device 1 1OUT 2 1IN- VCC 8 VCC 2OUT 7 OK VCC or GND Ground 3 1IN+ 2IN- 6 4 GND 2IN+ 5 Figure 3. LM2903 Layout Example 10 / 12 www.run-ic.com LM2903 PACKAGE OUTLINE DIMENSIONS SOIC-8(SOP8) b e 5.2 E E1 2.2 D 1.27 0.6 RECOMMENDED LAND PATTERN (Unit: mm) A2 c A A1 Symbol L Dimensions In Millimeters θ Dimensions In Inches Min Max Min Max A 1.350 1.750 0.053 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.007 0.010 D 4.800 5.000 0.189 0.197 e 1.270(BSC) 0.050(BSC) E 5.800 6.200 0.228 0.244 E1 3.800 4.000 0.150 0.157 L 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8° 11 / 12 www.run-ic.com LM2903 MSOP-8 b e E E1 4.8 1.02 D 0.65 0.41 RECOMMENDED LAND PATTERN (Unit: mm) A2 c A A1 L Symbol Dimensions In Millimeters θ Dimensions In Inches Min Max Min Max A 0.820 1.100 0.032 0.043 A1 0.020 0.150 0.001 0.006 A2 0.750 0.950 0.030 0.037 b 0.250 0.380 0.010 0.015 c 0.090 0.230 0.004 0.009 D 2.900 3.100 0.114 0.122 e 0.650(BSC) 0.026(BSC) E 2.900 3.100 0.114 0.122 E1 4.750 5.050 0.187 0.199 L 0.400 0.800 0.016 0.031 θ 0° 6° 0° 6° 12 / 12 www.run-ic.com