Product Folder Sample & Buy Technical Documents Support & Community Tools & Software LM2903-Q1 SLCS141E – MAY 2003 – REVISED JULY 2014 LM2903-Q1 Dual Differential Comparators 1 Features 2 Applications • • • 1 • • • • • • • • • • Qualified for Automotive Applications AEC-Q100 Qualified with the Following Results: – Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range – Device HBM ESD Classification Level H1C – Device CDM ESD Classification Level C4B ESD Protection Exceeds 1000 V Per MIL-STD-883, Method 3015; Exceeds 100 V Using Machine Model (C = 200 pF, R = 0 Ω) Single Supply or Dual Supplies Low Supply-Current Drain Independent of Supply Voltage 0.4 mA Typ Per Comparator Low Input Bias Current 25 nA Typ Low Input Offset Current 5 nA Typ Low Input Offset Voltage 2 mV Typ Common-Mode Input Voltage Range Includes Ground Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage ±36 V Low Output Saturation Voltage Output Compatible With TTL, MOS, and CMOS • • • • • Automotive – HEV/EV & Power Train – Infotainment & Cluster – Body Control Module Industrial Power supervision Oscillator Peak Detector Logic Voltage Translation 3 Description This device consists of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies is possible, as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships. Device Information(1) PART NUMBER LM2903-Q1 PACKAGE BODY SIZE (NOM) VSSOP(8) 3.00 mm x 3.00 mm SOIC (8) 4.90 mm × 3.91 mm TSSOP (8) 3.00 mm × 4.40 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. 4 Simplified Schematic IN+ OUT IN− 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LM2903-Q1 SLCS141E – MAY 2003 – REVISED JULY 2014 www.ti.com Table of Contents 1 2 3 4 5 6 7 8 Features .................................................................. Applications ........................................................... Description ............................................................. Simplified Schematic............................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 1 1 1 1 2 3 3 7.1 7.2 7.3 7.4 7.5 7.6 7.7 3 3 4 4 4 5 5 Absolute Maximum Ratings ...................................... Handling Ratings....................................................... Recommended Operating Conditions....................... Thermal Information .................................................. Electrical Characteristics........................................... Switching Characteristics .......................................... Typical Characteristics .............................................. Detailed Description .............................................. 6 8.1 Overview ................................................................... 6 8.2 Functional Block Diagram ......................................... 6 8.3 Feature Description................................................... 6 8.4 Device Functional Modes.......................................... 6 9 Application and Implementation .......................... 7 9.1 Application Information.............................................. 7 9.2 Typical Application ................................................... 7 10 Power Supply Recommendations ....................... 9 11 Layout..................................................................... 9 11.1 Layout Guidelines ................................................... 9 11.2 Layout Example ...................................................... 9 12 Device and Documentation Support ................... 9 12.1 Trademarks ............................................................. 9 12.2 Electrostatic Discharge Caution .............................. 9 12.3 Glossary .................................................................. 9 13 Mechanical, Packaging, and Orderable Information ............................................................. 9 5 Revision History Changes from Revision D (April 2008) to Revision E Page • Added AEC-Q100 info to Features. ....................................................................................................................................... 1 • Added Applications. ............................................................................................................................................................... 1 • Added Device Information table. ........................................................................................................................................... 1 • Added Pin Functions table. .................................................................................................................................................... 3 • Added Handling Ratings table. .............................................................................................................................................. 3 • Added TJ and ESD ratings to Abs Max table. ........................................................................................................................ 3 • Updated Recommended Operating Conditions table. ........................................................................................................... 4 • Added Thermal Information table. .......................................................................................................................................... 4 • Updated Electrical Characteristics table. ............................................................................................................................... 4 2 Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 LM2903-Q1 www.ti.com SLCS141E – MAY 2003 – REVISED JULY 2014 6 Pin Configuration and Functions D, DGK OR PW PACKAGE Top View 1OUT 1IN− 1IN+ GND 1 8 2 7 3 6 4 5 VCC 2OUT 2IN− 2IN+ Pin Functions PIN I/O DESCRIPTION NAME NO. 1OUT 1 Output 1IN- 2 Input Comparator 1's negative input pin 1IN+ 3 Input Comparator 1's positive input pin GND 4 Input Ground 2IN+ 5 Input Comparator 2's positive input pin 2IN- 6 Input Comparator 2's negative input pin 2OUT 7 Output VCC 8 Input Comparator 1's output pin Comparator 2's output pin Supply Pin 7 Specifications 7.1 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN (2) MAX UNIT VCC Supply voltage VID Differential input voltage (3) 36 V –36 36 VI Input voltage range (either input) V −0.3 36 V VO Output voltage 36 V IO Output current 20 mA Duration of output short-circuit to ground Unlimited D package θJA Package thermal impedance (4) PW package DGK package (1) (2) (3) (4) 97 °C/W 149 °C/W 199.4 °C/W 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 under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values, except differential voltages, are with respect to GND. Differential voltages are at IN+ with respect to IN−. The package thermal impedance is calculated in accordance with JESD 51-7. 7.2 Handling Ratings MIN Tstg Storage temperature range V(ESD) (1) Electrostatic discharge MAX –65 150 Human body model (HBM), per AEC Q100-002 (1) 0 1000 Charged device model (CDM), per AEC Q100-011 0 750 All pins UNIT °C V AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 3 LM2903-Q1 SLCS141E – MAY 2003 – REVISED JULY 2014 www.ti.com 7.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN NOM MAX UNIT VCC (non-V devices) 2 30 VCC (V devices) 2 32 V -40 125 °C TJ Junction Temperature V 7.4 Thermal Information LM2903-Q1 THERMAL METRIC (1) DGK UNIT 8 PINS RθJA Junction-to-ambient thermal resistance 199.4 RθJCtop Junction-to-case (top) thermal resistance 120.8 RθJB Junction-to-board thermal resistance 90.2 ψJT Junction-to-top characterization parameter 21.5 ψJB Junction-to-board characterization parameter 119.1 (1) °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 7.5 Electrical Characteristics at specified free-air temperature, VCC = 5 V (unless otherwise noted) PARAMETER VIO Input offset voltage TA (1) TEST CONDITIONS VO = 1.4 V, VIC = VIC(min), VCC = 5 V to MAX (2) Non-A devices A-suffix devices Input offset current VO = 1.4 V IIB Input bias current VO = 1.4 V VICR Common-mode input voltage range (3) AVD Large-signal differential-voltage amplification VCC = 15 V, VO = 1.4 V to 11.4 V, RL ≥ 15 kΩ to VCC IOH High-level output current VOH = 5 V VOL Low-level output voltage IOL = 4 mA, VID = −1 V IOL Low-level output current VOL = 1.5 V, VID = −1 V ICC Supply current RL = ∞ (1) (2) (3) 4 TYP MAX 2 7 Full range 15 25°C 1 2 5 50 Full range Full range 200 −25 25°C 25°C 25°C VID = 1 V VCC = 5 V VCC = MAX (2) 0 to VCC−1.5 25 25°C 100 0.1 25°C 150 Full range 25°C Full range mV nA nA V 0 to VCC−2 Full range 25°C −250 −500 Full range Full range UNIT 4 25°C IIO VOH = VCC MAX (2) MIN 25°C V/mV 50 nA 1 µA 400 700 6 mV mA 0.8 1 2.5 mA Full range (MIN or MAX) for LM2903Q is −40°C to 125°C. All characteristics are measured with zero common-mode input voltage, unless otherwise specified. VCC MAX = 30 V for non-V devices and 32 V for V-suffix devices. The voltage at either input or common-mode should not be allowed to go negative by more than 0.3 V. The upper end of the commonmode voltage range is VCC+ − 1.5 V for the inverting input (−), and the non-inverting input (+) can exceed the VCC level; the comparator provides a proper output state. Either or both inputs can go to 30 V (32V for V-suffix devices) without damage. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 LM2903-Q1 www.ti.com SLCS141E – MAY 2003 – REVISED JULY 2014 7.6 Switching Characteristics VCC = 5 V, TA = 25°C PARAMETER Response time (1) (2) TEST CONDITIONS TYP RL connected to 5 V through 5.1 kΩ, 100-mV input step with 5-mV overdrive 1.3 CL = 15 pF (1) (2) TTL-level input step 0.3 UNIT µs CL includes probe and jig capacitance. The response time specified is the interval between the input step function and the instant when the output crosses 1.4 V. 7.7 Typical Characteristics 1.0 70 -40C 0C 25C 85C 125C 60 Input Bias Current (nA) Supply Current (mA) 0.8 0.6 0.4 0.2 -40C 0C 85C 125C 25C 50 40 30 20 10 0.0 0 0 10 20 30 40 Vcc (V) 0 8 16 24 32 Vcc (V) C001 Figure 1. Supply Current vs. Supply Voltage 40 C002 Figure 2. Input Bias Current vs. Supply Voltage Output Low Voltage, VOL(V) 10.000 1.000 0.100 0.010 0.001 0.01 -40C 0C 25C 85C 125C 0.1 1 10 100 Output Sink Current, Io(mA) C005 Figure 3. Output Low Voltage vs. Output Current Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 5 LM2903-Q1 SLCS141E – MAY 2003 – REVISED JULY 2014 www.ti.com 8 Detailed Description 8.1 Overview The LM2903 is a dual comparator with the ability to operate up to 36 V on the supply pin. This standard device has proven ubiquity and versatility across a wide range of applications. This is due to it's very wide supply voltages range (2 V to 36 V), low Iq and fast response. This device is Q100 qualified and can operate over a wide temperature range (–40°C to 125°C). 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. 8.2 Functional Block Diagram VCC 80-µA Current Regulator 60 µA 10 µA 10 µA 80 µA IN+ COMPONENT COUNT OUT Epi-FET Diodes Resistors Transistors 1 2 2 30 IN− GND Figure 4. Schematic (Each Comparator) 8.3 Feature Description LM2903 consists of a PNP darlington pair input, allowing the device to operate with very high gain and fast response with minimal input bias current. The input Darlington pair creates a limit on the input common mode voltage capability, allowing LM2903 to accurately function from ground to VCC–1.5V differential input. This is enables much head room for modern day supplies of 3.3 V & 5.0 V. The output consists of an open drain NPN (pull-down or low side) transistor. The output NPN will sink current when the positive input voltage is higher than the negative input voltage and the offset voltage. The VOL is resistive and will scale with the output current. Please see Figure 2 in the Typical Characteristics section for VOL values with respect to the output current. 8.4 Device Functional Modes 8.4.1 Voltage Comparison The LM2903-Q1 operates solely as a voltage comparator, comparing the differential voltage between the positive and negative pins and outputting a logic low or high impedance (logic high with pull-up) based on the input differential polarity. 6 Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 LM2903-Q1 www.ti.com SLCS141E – MAY 2003 – REVISED JULY 2014 9 Application and Implementation 9.1 Application Information LM2903Q1 will typically be used to compare a single signal to a reference or two signals against each other. Many users take advantage of the open drain output 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 LM2903Q1 optimal for level shifting to a higher or lower voltage. 9.2 Typical Application VLOGIC VLOGIC VSUP Vin VSUP Rpullup + Vin+ ½ LM2903 Rpullup + ½ LM2903 Vin- Vref CL CL Figure 5. Single-ended and Differential Comparator Configurations 9.2.1 Design Requirements For this design example, use the parameters listed in Table 1 as the input parameters. Table 1. Design Parameters DESIGN PARAMETER EXAMPLE VALUE Input Voltage Range 0 V to Vsup-1.5 V Supply Voltage 2 V to 36 V Logic Supply Voltage 2 V to 36 V Output Current (RPULLUP) 1 µA to 20 mA Input Overdrive Voltage 100 mV Reference Voltage 2.5 V Load Capacitance (CL) 15 pF 9.2.2 Detailed Design Procedure When using LM2903-Q1 in a general comparator application, determine the following: • Input Voltage Range • Minimum Overdrive Voltage • Output & Drive Current • Response Time 9.2.2.1 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 above or below 25°C the VICR can range from 0 V to VCC–2.0V. This limits the input voltage range to as high as VCC–2.0V and as low as 0 V. Operation outside of this range can yield incorrect comparisons. Below is a list of input voltage situation and their outcomes: 1. When both IN- & IN+ are both within the common mode range: (a) If IN- is higher than IN+ and the offset voltage, the output is low and the output transistor is sinking current (b) If IN- is lower than IN+ and the offset voltage, the output is high impedance and the output transistor is not conducting Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 7 LM2903-Q1 SLCS141E – MAY 2003 – REVISED JULY 2014 www.ti.com 2. When IN- is higher than common mode and IN+ is within common mode, the output is low and the output transistor is sinking current 3. When IN+ is higher than common mode and IN- is within common mode, the output is high impedance and the output transistor is not conducting 4. When IN- and IN+ are both higher than common mode, the output is low and the output transistor is sinking current 9.2.2.2 Minimum Overdrive Voltage Overdrive Voltage is the differential voltage produced between the positive and negative inputs of the comparator over the offset voltage (VIO). In order to make an accurate comparison the Overdrive Voltage (VOD) should be higher than the input offset voltage (VIO). Overdrive voltage can also determine the response time of the comparator, with the response time decreasing with increasing overdrive. Figure 6 & Figure 7 show positive and negative response times with respect to overdrive voltage. 9.2.2.3 Output & Drive Current Output current is determined by the load/pull-up resistance and logic/pull-up voltage. The output current will produce a output low voltage (VOL) from the comparator. In which VOL is proportional to the output current. Use Figure 3 to determine VOL based on the output current. The output current can also effect the transient response. More will be explained in the next section. 9.2.2.4 Response Time The transient response can be determined by the load capacitance (CL), load/pull-up resistance (RPULLUP) and equivalent collector-emitter resistance (RCE). • • The positive response time (τp) is approximately τP ~ RPULLUP x CL The negative response time (τN) is approximately τN ~ RCE x CL – RCE can be determine by taking the slope of Figure 3 in it's linear region at the desired temperature, or by dividing the VOL by Iout 9.2.3 Application Curves 6 6 5 5 Output Voltage (Vo) Output Voltage, Vo(V) The following curves were generated with 5 V on VCC & VLogic, RPULLUP = 5.1 kΩ, and 50 pF scope probe. 4 3 2 5mV OD 1 20mV OD 0 4 3 2 5mV OD 1 20mV OD 0 100mV OD ±1 -0.25 0.25 0.75 1.25 Time (usec) 1.75 2.25 0.25 0.50 0.75 1.00 Time (usec) C004 Figure 6. Response Time for Various Overdrives (Positive Transition) 8 100mV OD ±1 ±0.25 0.00 1.25 1.50 1.75 2.00 C006 Figure 7. Response Time for Various Overdrives (Negative Transition) Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 LM2903-Q1 www.ti.com SLCS141E – MAY 2003 – REVISED JULY 2014 10 Power Supply Recommendations For fast response and comparison applications with noisy or AC inputs, it is recommended to use a bypass capacitor on the supply pin to reject any variation on the supply voltage. This variation can eat into the comparator's input common mode range and create an inaccurate comparison. 11 Layout 11.1 Layout Guidelines For accurate comparator applications without hysteresis it is important maintain a stable power supply with minimized noise and glitches, which can affect the high level input common mode voltage range. In order 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. 11.2 Layout Example Ground Bypass Capacitor 1 1OUT 1INí 2 3 1IN+ GND 4 Negative Supply or Ground Only needed for dual power supplies 0.1PF VCC 7 2OUT 6 2INí 5 2IN+ 8 Positive Supply 0.1PF Ground Figure 8. LM2903Q1 Layout Example 12 Device and Documentation Support 12.1 Trademarks All trademarks are the property of their respective owners. 12.2 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.3 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: LM2903-Q1 9 PACKAGE OPTION ADDENDUM www.ti.com 18-Jul-2014 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LM2903AVQDRG4Q1 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903AVQ LM2903AVQDRQ1 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903AVQ LM2903AVQPWRG4Q1 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903AVQ LM2903AVQPWRQ1 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903AVQ LM2903QDGKRQ1 ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 KACQ LM2903QDRG4Q1 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903Q1 LM2903QDRQ1 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903Q1 LM2903QPWRG4Q1 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903Q1 LM2903QPWRQ1 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903Q1 LM2903VQDRG4Q1 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903VQ1 LM2903VQDRQ1 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903VQ1 LM2903VQPWRG4Q1 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903VQ LM2903VQPWRQ1 ACTIVE TSSOP PW 8 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 125 2903VQ (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 18-Jul-2014 (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. 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