LM2903EYFJ-CE2

EMARMOURTM Datasheet Comparator Automotive Excellent EMI Immunity Ground Sense Comparators LM2903EYxxx-C General Description Key Specifications LM2903EYxxx-C is high-gain and ground sense input comparator. This IC is monolithic IC integrated dual independent comparator on a single chip. An operating voltage range is wide with 3 V to 36 V. This comparator is the most suitable for automotive requirements such as engine control unit, electric power steering, anti-lock braking system and so on because it has features of low supply current. Furthermore, they have the advantage of EMI tolerance. It makes easier replacing with conventional products or simpler designing EMI. ◼ Operating Supply Voltage Range Single Supply: 3.0 V to 36.0 V Dual Supply: ±1.5 V to ±18.0 V ◼ Operating Temperature Range: -40 °C to +150 °C ◼ Low Supply Current: 0.6 mA (Typ) ◼ Input Offset Current: 5 nA (Typ) ◼ Input Bias Current: 50 nA (Typ) Package SOP8 SOP-J8 MSOP8 Features ◼ ◼ ◼ ◼ ◼ ◼ ◼ ◼ W (Typ) x D (Typ) x H (Max) 5.0 mm x 6.2 mm x 1.71 mm 4.9 mm x 6.0 mm x 1.65 mm 2.9 mm x 4.0 mm x 0.9 mm EMARMOURTM Series AEC-Q100 Qualified(Note 1) Operable from Almost GND Level for Input Single or Dual Power Supply Operation Standard Comparator Pin-assignments Low Supply Current Wide Operating Supply Voltage Range Wide Operating Temperature Range (Note 1) Grade 1 SOP8 SOP-J8 Applications ◼ ◼ ◼ ◼ Engine Control Unit Electric Power Steering (EPS) Anti-lock Braking System (ABS) Automotive Electronics Typical Application Circuit MSOP8 VCC = 5 V V+IN + VRL = 5 V RL = 5 kΩ VOUT VREF VEE = 0 V EMARMOURTM is a trademark or a registered trademark of ROHM Co., Ltd. 〇Product structure : Silicon integrated circuit www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 14 • 001 〇This product has no designed protection against radioactive rays 1/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Pin Configuration LM2903EYF-C: SOP8 LM2903EYFJ-C: SOP-J8 LM2903EYFVM-C: MSOP8 OUT1 1 -IN1 2 8 VCC CH1 - + + +IN1 3 7 OUT2 CH2 + - VEE 4 6 -IN2 5 +IN2 (TOP VIEW) Pin Description LM2903EYF-C: SOP8 LM2903EYFJ-C: SOP-J8 LM2903EYFVM-C: MSOP8 Pin No. Pin Name Function 1 OUT1 2 -IN1 Output (1 ch) Inverting input (1 ch) 3 +IN1 Non-inverting input (1 ch) 4 VEE Negative power supply / Ground 5 +IN2 Non-inverting input (2 ch) 6 -IN2 Inverting input (2 ch) 7 OUT2 Output (2 ch) 8 VCC Positive power supply Block Diagram LM2903EYF-C: SOP8 LM2903EYFJ-C: SOP-J8 LM2903EYFVM-C: MSOP8 OUT1 1 -IN1 2 +IN1 3 VEE 4 Iref COMP - (CH1)+ COMP (CH2) + - 8 VCC 7 OUT2 6 -IN2 5 +IN2 Description of Blocks 1. COMP: This block is a ground sense comparator with differential input stage. 2. Iref: This block supplies reference current which is needed to operate COMP block. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 2/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Absolute Maximum Ratings (Ta = 25 °C) Parameter Supply Voltage Symbol Rating Unit VCC-VEE 36 V VID VCC-VEE V VICMR (VEE - 0.3) to (VEE + 36) V II ±10 mA Tjmax 150 °C Tstg -55 to +150 °C Differential Input Voltage(Note 1) Common-mode Input Voltage Range Input Current Maximum Junction Temperature Storage Temperature Range Caution 1: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over the absolute maximum ratings. Caution 2: Should by any chance the maximum junction temperature rating be exceeded the rise in temperature of the chip may result in deterioration of the properties of the chip. In case of exceeding this absolute maximum rating, design a PCB with thermal resistance taken into consideration by increasing board size and copper area so as not to exceed the maximum junction temperature rating. (Note 1) The differential input voltage indicates the voltage difference between inverting input and non-inverting input. The input pin voltage is set to VEE or more. Thermal Resistance(Note 2) Parameter Symbol Thermal Resistance (Typ) 1s(Note 4) 2s2p(Note 5) Unit SOP8 Junction to Ambient θJA 197.4 109.8 °C/W Junction to Top Characterization Parameter(Note 3) ΨJT 21 19 °C/W Junction to Ambient θJA 149.3 76.9 °C/W Junction to Top Characterization Parameter(Note 3) ΨJT 18 11 °C/W Junction to Ambient θJA 284.1 135.4 °C/W Junction to Top Characterization Parameter(Note 3) ΨJT 21 11 °C/W SOP-J8 MSOP8 (Note 2) Based on JESD51-2A(Still-Air). (Note 3) The thermal characterization parameter to report the difference between junction temperature and the temperature at the top center of the outside surface of the component package. (Note 4) Using a PCB board based on JESD51-3. (Note 5) Using a PCB board based on JESD51-7. Layer Number of Measurement Board Single Material Board Size FR-4 114.3 mm x 76.2 mm x 1.57 mmt Top Copper Pattern Thickness Footprints and Traces 70 μm Layer Number of Measurement Board Material Board Size 4 Layers FR-4 114.3 mm x 76.2 mm x 1.6 mmt Top 2 Internal Layers Bottom Copper Pattern Thickness Copper Pattern Thickness Copper Pattern Thickness Footprints and Traces 70 μm 74.2 mm x 74.2 mm 35 μm 74.2 mm x 74.2 mm 70 μm Recommended Operating Conditions Parameter Operating Supply Voltage Symbol Single Supply Dual Supply Operating Temperature www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 VCC Topr Min Typ Max 3.0 - 36.0 ±1.5 - ±18.0 -40 +25 +150 3/21 Unit V °C TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Function Explanation 1. EMARMOURTM EMARMOURTM is the brand name given to ROHM products developed by leveraging proprietary technologies covering layout, process, and circuit design to achieve ultra-high noise immunity that limits output voltage fluctuation to ±300 mV or less across the entire noise frequency band during noise evaluation testing under the international ISO11452-2 standard. This unprecedented noise immunity reduces design load while improving reliability by solving issues related to noise in the development of vehicle electrical systems. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 4/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Electrical Characteristics (Unless otherwise specified VCC = 5 V, VEE = 0 V) Parameter Input Offset Voltage Input Offset Current Input Bias Current Common-mode Input Voltage Range Large Signal Voltage Gain Supply Current Output Sink Current(Note 1) Output Saturation Voltage (Low Level Output Voltage) Output Leak Current(Note 1) (High Level Output Current) Response Time Operable Frequency Symbol Temperature Range Limit Unit Min Typ Max 25 °C - 2 5 -40 °C to +150 °C - - 9 25 °C - 5 40 -40 °C to +150 °C - - 50 25 °C - 50 250 VIO IIO IB -40 °C to +150 °C - - 275 25 °C 0 - 3.5 -40 °C to +150 °C 0 - 3.0 25 °C 80 120 - VICMR AV -40 °C to +150 °C 74 - - 25 °C - 0.6 1 ICC mV VOUT = 1.4 V Absolute value VCC = 5 V to 36 V VOUT = 1.4 V Absolute value nA VOUT = 1.4 V Absolute value nA VOUT = 1.4 V Absolute value V (VCC-VEE) = 5 V dB VCC = 15 V VOUT = 1.4 V to 11.4 V RL = 15 kΩ, VRL = 15 V VOUT = Open mA -40 °C to +150 °C - - 1.5 25 °C 8 16 - IOL -40 °C to +150 °C 2 - - 25 °C - 80 200 VOL VOUT = Open, VCC = 36 V mA V+IN = 0 V, V-IN = 1 V VOUT = 1.5 V Absolute value mV V+IN = 0 V, V-IN = 1 V IOL = 4 mA -40 °C to +150 °C - - 400 25 °C - 0.1 - nA -40 °C to +150 °C - - 1 μA - 1.3 - ILEAK tRE fopr Conditions 25 °C 25 °C μs - 0.4 - 100 - - kHz V+IN = 1 V, V-IN = 0 V VOUT = 5 V Absolute value V+IN = 1 V, V-IN = 0 V VOUT = 36 V Absolute value RL = 5.1 kΩ, VRL = 5 V VIN = 100 mVP-P Overdrive = 5 mV RL = 5.1 kΩ, VRL = 5 V VIN = TTL Logic Swing, VREF = 1.4 V RL = 2 kΩ, V+IN = 1.5 V V-IN = 5 VP-P (Duty 50 % Rectangular Pulse) (Note 1) Consider the power dissipation of the IC under high temperature environment when selecting the output current value. When the output pin is short-circuited continuously, the output current may decrease due to the temperature rise by the heat generation of inside the IC. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 5/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Typical Performance Curves VEE = 0 V 1.6 1.6 Ta = -40 °C VCC = 3.0 V 1.4 Ta = +25 °C Ta = +150 °C 1.2 Supply Current : ICC [mA] Supply Current : ICC [mA] 1.4 1.0 0.8 0.6 0.4 0.2 VCC = 5.0 V VCC = 32.0 V 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0 10 20 30 Supply Voltage : VCC [V] 40 -50 Figure 1. Supply Current vs Supply Voltage -25 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Figure 2. Supply Current vs Ambient Temperature 300 300 VCC = 3.0 V Output Saturation Voltage : VOL [mV] Output Saturation Voltage : VOL [mV] Ta = -40 °C Ta = +25 °C 250 Ta = +150 °C 200 150 100 50 0 VCC = 5.0 V 250 VCC = 32.0 V 200 150 100 50 0 0 10 20 30 Supply Voltage : VCC [V] 40 -50 Figure 3. Output Saturation Voltage vs Supply Voltage (IOL = 4 mA) -25 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Figure 4. Output Saturation Voltage vs Ambient Temperature (IOL = 4 mA) (Note) The above data are measurement value of typical sample; it is not guaranteed. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 6/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Typical Performance Curves - continued VEE = 0 V 2.0 40 Output Voltage : VOUT [V] 1.6 Ta = -40 °C VCC = 3.0 V Ta = +25 °C VCC = 5.0 V Output Sink Current : IOL [mA] 1.8 Ta = +150 °C 1.4 1.2 1.0 0.8 0.6 0.4 VCC = 32.0 V 30 20 10 0.2 0.0 0 0 2 4 6 8 10 12 14 16 Output Sink Current : IOL [mA] 18 -50 Figure 5. Output Voltage vs Output Sink Current (VCC = 5 V) -25 Figure 6. Output Sink Current vs Ambient Temperature (VOUT = 1.5 V) 8 8 Ta = -40 °C 6 VCC = 3.0 V 6 Ta = +25 °C Input Offset Voltage : VIO [mV] Input Offset Voltage : VIO [mV] 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Ta = +150 °C 4 2 0 -2 -4 -6 VCC = 5.0 V VCC = 32.0 V 4 2 0 -2 -4 -6 -8 -8 0 10 20 30 Supply Voltage : VCC [V] 40 -50 Figure 7. Input Offset Voltage vs Supply Voltage -25 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Figure 8. Input Offset Voltage vs Ambient Temperature (Note) The above data are measurement value of typical sample; it is not guaranteed. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 7/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Typical Performance Curves - continued VEE = 0 V 120 120 Ta = -40 °C VCC = 3.0 V 100 Ta = +25 °C Ta = +150 °C 80 Input Bias Current : IB [nA] Input Bias Current : IB [nA] 100 60 40 20 0 -20 VCC = 5.0 V VCC = 32.0 V 80 60 40 20 0 -20 -40 -40 0 10 20 30 Supply Voltage : VCC [V] 40 -50 Figure 9. Input Bias Current vs Supply Voltage -25 Figure 10. Input Bias Current vs Ambient Temperature 50 50 Ta = -40 °C 40 VCC = 3.0 V 40 30 VCC = 5.0 V Input Offset Current : IIO [nA] Ta = +25 °C Input Offset Current : IIO [nA] 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Ta = +150 °C 20 10 0 -10 -20 -30 -40 30 VCC = 32.0 V 20 10 0 -10 -20 -30 -40 -50 -50 0 10 20 30 Supply Voltage : VCC [V] 40 -50 Figure 11. Input Offset Current vs Supply Voltage -25 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Figure 12. Input Offset Current vs Ambient Temperature (Note) The above data are measurement value of typical sample; it is not guaranteed. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 8/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Typical Performance Curves - continued 140 140 130 130 Large Signal Voltage Gain : AV [dB] Large Signal Voltage Gain : AV [dB] VEE = 0 V 120 110 100 90 80 Ta = -40 °C Ta = +25 °C 70 120 110 100 90 80 VCC = 3.0 V VCC = 5.0 V 70 Ta = +150 °C VCC = 32.0 V 60 60 0 10 20 30 Supply Voltage : VCC [V] 40 -50 Figure 13. Large Signal Voltage Gain vs Supply Voltage 0 25 50 75 100 125 150 Ambient Temperature : Ta [°C] Figure 14. Large Signal Voltage Temperature 10 Gain vs Ambient 5 Ta = -40 °C Response Time (Low to High) : tRE [μs] Ta = -40 °C 8 Ta = +25 °C Input Offset Voltage : VIO [mV] -25 6 Ta = +150 °C 4 2 0 -2 -4 -6 -8 -10 -1 0 1 2 3 4 Common-mode Input Voltage : VICM [V] Ta = +25 °C 4 Ta = +150 °C 3 2 1 0 -100 5 Figure 15. Input Offset Voltage vs Common-mode Input Voltage (VCC = 5 V) -80 -60 -40 -20 Overdrive Voltage : VOV [mV] 0 Figure 16. Response Time (Low to High) vs Overdrive Voltage (VCC = 5 V, VRL = 5 V, RL = 5.1 kΩ) (Note) The above data are measurement value of typical sample; it is not guaranteed. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 9/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Typical Performance Curves - continued VEE = 0 V 5 5 Ta = -40 °C Response Time (High to Low) : tRE [μs] Response Time (Low to High) : tRE [μs] 5 mV overdrive 20 mV overdrive 4 100 mV overdrive 3 2 1 0 Ta = +25 °C 4 Ta = +150 °C 3 2 1 0 -50 -25 0 25 50 75 100 125 Ambient Temperature : Ta [°C] 150 0 Figure 17. Response Time (Low to High) vs Ambient Temperature (VCC = 5 V, VRL = 5 V, RL = 5.1 kΩ) 20 40 60 80 Overdrive Voltage : VOV [mV] 100 Figure 18. Response Time (High to Low) vs Overdrive Voltage (VCC = 5 V, VRL = 5 V, RL = 5.1 kΩ) Response Time (High to Low) : tRE [μs] 5 5 mV overdrive 20 mV overdrive 4 100 mV overdrive 3 2 1 0 -50 -25 0 25 50 75 100 125 Ambient Temperature : Ta [°C] 150 Figure 19. Response Time (High to Low) vs Ambient Temperature (VCC = 5 V, VRL = 5 V, RL = 5.1 kΩ) (Note) The above data are measurement value of typical sample; it is not guaranteed. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 10/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Application Information EMI Immunity LM2903EYxxx-C has high tolerance for electromagnetic interference from the outside because they have EMI filter, and the EMI design is simple. They are most suitable to replace from conventional products. The data of the IC simple substance on ROHM board are as follows. The test condition is based on ISO11452-2. VVRL-7 RL+1 Conventional Product VRL-6 VRL LM2903EYxxx-C VOUT [V] VRL-5 V RL-1 VOUT [V] Based on ISO11452-2 VCC: 12 V, VRL: 6 V, RL: 5.1 kΩ H Level Output V+IN: 6 V, V-IN: 5.8 V L Level Output V+IN: 5.8 V, V-IN: 6 V Test Method: Substituted Law (Progressive Wave) Field Intensity: 200 V/m Test Wave: CW (Continuous Wave) Frequency: 200 MHz – 1000 MHz (2 % step) VRL-4 V RL-2 VRL-3 V RL-3 VRL-2 V RL-4 VRL-1 V RL-5 VRL-0 0 200 200 400 600 400 Frequency 600 [MHz]800 800 1000 1000 Frequency [MHz] Figure 20. EMI Characteristics (H Level Output) VVRL-7 RL+1 VRL-6 VRL VVRL-4 RL-2 VOUT [V] VOUT [V] VVRL-5 RL-1 VVRL-3 RL-3 VVRL-2 RL-4 Conventional Product VVRL-1 RL-5 Figure 22. EMI Evaluation Board LM2903EYxxx-C 0 VRL-0 200 200 400 400 600 800 800 600 Frequency [MHz] 1000 1000 Frequency [MHz] Figure 21. EMI Characteristics (L Level Output) Battery 6V Battery 12 V + VCC Power Supply Oscillo Scope VEE Antenna Figure 23. Measurement Circuit of EMI Evaluation (Note) The above data is obtained using typical IC simple substance on ROHM board. These values are not guaranteed. Design and Evaluate in actual application before use. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 11/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Application Information - continued 1. Unused Circuits When there are unused circuits, it is recommended that they are connected as in right figure, and set the non-inverting input pin to electric potential within the input common-mode voltage range (VICMR). 2. Input Voltage Applying VEE + 36 V to the input pin is possible without causing deterioration of the electrical characteristics or destruction, regardless of the supply voltage. However, this does not ensure circuit operation. Note that the circuit operates normally only when the input voltage is within the common-mode input voltage range of the electric characteristics. 3. Power Supply (single/dual) The comparator operates when the voltage is supplied between the VCC and VEE pin. Therefore, the comparator can operate from single supply or dual supplies. VCC Connect to VICM + VICM Open - VEE Figure 24. Example of application unused circuit processing 4. Pin Short-circuits When the output and the VCC pins are shorted, excessive output current may flow, resulting in undue heat generation and, subsequently, destruction. 5. Handling the IC Applying mechanical stress to the IC by deflecting or bending the board may cause fluctuations of the electrical characteristics due to the piezo resistance effects. Pay attention to defecting or bending the board. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 12/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Application Examples ○Reference voltage is -IN VRL VIN VCC V+IN RL + Reference Voltage VREF Reference Voltage VOUT VEE Time VOUT Input Voltage Wave High Figure 25. Circuit example when reference voltage is -IN While the input voltage (VIN) is higher than the reference voltage, the output voltage remains high. In case the input voltage becomes lower than the reference voltage, the output voltage will turn low. Low Output Voltage Wave Time ○Reference voltage is +IN VRL VIN VCC Reference VREF Voltage RL + VOUT V-IN Reference Voltage VEE Time Figure 26. Circuit example when reference voltage is +IN VOUT Input Voltage Wave High While the input voltage (VIN) is lower than the reference voltage, the output voltage remains high. In case the input voltage becomes higher than the reference voltage, the output voltage will turn low. Low Output Voltage Wave www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 13/21 Time TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C I/O Equivalence Circuits I/O Equivalence Circuits Pin No. Pin Name Pin Description Equivalence Circuit 1, 7 1 7 OUT1 OUT2 Output 2 3 5 6 -IN1 +IN1 +IN2 -IN2 Input www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 2, 3, 5, 6 14/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Operational Notes 1. Reverse Connection of Power Supply Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply pins. 2. Power Supply Lines Design the PCB layout pattern to provide low impedance supply lines. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and aging on the capacitance value when using electrolytic capacitors. 3. Ground Voltage Ensure that no pins are at a voltage below that of the ground pin at any time, even during transient condition. 4. Ground Wiring Pattern When using both small-signal and large-current ground traces, the two ground traces should be routed separately but connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal ground caused by large currents. Also ensure that the ground traces of external components do not cause variations on the ground voltage. The ground lines must be as short and thick as possible to reduce line impedance. 5. Recommended Operating Conditions The function and operation of the IC are guaranteed within the range specified by the recommended operating conditions. The characteristic values are guaranteed only under the conditions of each item specified by the electrical characteristics. 6. Inrush Current When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush current may flow instantaneously due to the internal powering sequence and delays, especially if the IC has more than one power supply. Therefore, give special consideration to power coupling capacitance, power wiring, width of ground wiring, and routing of connections. 7. Testing on Application Boards When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage. 8. Inter-pin Short and Mounting Errors Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin. Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment) and unintentional solder bridge deposited in between pins during assembly to name a few. 9. Unused Input Pins Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the power supply or ground line. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 15/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Operational Notes – continued 10. Regarding the Input Pin of the IC This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode or transistor. For example (refer to figure below): When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode. When GND > Pin B, the P-N junction operates as a parasitic transistor. Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be avoided. Resistor Transistor (NPN) Pin A Pin B C E Pin A N P+ P N N P+ N Pin B B Parasitic Elements N P+ N P N P+ B N C E Parasitic Elements P Substrate P Substrate GND GND Parasitic Elements GND Parasitic Elements GND N Region close-by Figure 27. Example of Monolithic IC Structure 11. Ceramic Capacitor When using a ceramic capacitor, determine a capacitance value considering the change of capacitance with temperature and the decrease in nominal capacitance due to DC bias and others. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 16/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Ordering Information L M 2 9 0 3 E Y x x x C - x x Product Rank C: for Automotive Packaging and forming specification E2: Embossed tape and reel TR: Embossed tape and reel Package F: SOP8 FJ: SOP-J8 FVM: MSOP8 Lineup Temperature Range -40 °C to +150 °C Operating Supply Voltage Range 3 V to 36 V Number of Channels Dual Orderable Part Number Package SOP8 Reel of 2500 LM2903EYF-CE2 SOP-J8 Reel of 2500 LM2903EYFJ-CE2 MSOP8 Reel of 3000 LM2903EYFVM-CTR Marking Diagram SOP8 (TOP VIEW) Part Number Marking 2 9 0 3 E LOT Number Pin 1 Mark SOP-J8 (TOP VIEW) Part Number Marking 2 9 0 3 E LOT Number Pin 1 Mark MSOP8 (TOP VIEW) Part Number Marking 2 3 9 0 E LOT Number Pin 1 Mark www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 17/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Physical Dimension and Packing Information Package Name SOP8 (Max 5.35 (include.BURR)) (UNIT: mm) PKG: SOP8 Drawing No.: EX112-5001-1 www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 18/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Physical Dimension and Packing Information – continued Package Name www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 SOP-J8 19/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Physical Dimension and Packing Information – continued Package Name www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 MSOP8 20/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 LM2903EYxxx-C Revision History Date Revision Changes 19.Feb.2020 001 New Release 17.Jan.2022 002 Changed the "Absolute Maximum Ratings" and "Recommended Operating Conditions" of the supply voltage. 01.Oct.2022 003 Modified title 05.Sep.2023 004 Modified the description error in Figure 16 and Figure 18. www.rohm.com © 2020 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 21/21 TSZ02201-0GHG2G500010-1-2 05.Sep.2023 Rev.004 Notice Precaution on using ROHM Products 1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), aircraft/spacecraft, nuclear power controllers, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance. Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific Applications. (Note1) Medical Equipment Classification of the Specific Applications JAPAN USA EU CHINA CLASSⅢ CLASSⅡb CLASSⅢ CLASSⅢ CLASSⅣ CLASSⅢ 2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which a failure or malfunction of our Products may cause. The following are examples of safety measures: [a] Installation of protection circuits or other protective devices to improve system safety [b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure 3. Our Products are not designed under any special or extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any special or extraordinary environments or conditions. If you intend to use our Products under any special or extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of product performance, reliability, etc, prior to use, must be necessary: [a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents [b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust [c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2 [d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves [e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items [f] Sealing or coating our Products with resin or other coating materials [g] Use of our Products without cleaning residue of flux (Exclude cases where no-clean type fluxes is used. However, recommend sufficiently about the residue.); or Washing our Products by using water or water-soluble cleaning agents for cleaning residue after soldering [h] Use of the Products in places subject to dew condensation 4. The Products are not subject to radiation-proof design. 5. Please verify and confirm characteristics of the final or mounted products in using the Products. 6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse, is applied, confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect product performance and reliability. 7. De-rate Power Dissipation depending on ambient temperature. When used in sealed area, confirm that it is the use in the range that does not exceed the maximum junction temperature. 8. Confirm that operation temperature is within the specified range described in the product specification. 9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in this document. Precaution for Mounting / Circuit board design 1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product performance and reliability. 2. In principle, the reflow soldering method must be used on a surface-mount products, the flow soldering method must be used on a through hole mount products. If the flow soldering method is preferred on a surface-mount products, please consult with the ROHM representative in advance. For details, please refer to ROHM Mounting specification Notice-PAA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Precautions Regarding Application Examples and External Circuits 1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the characteristics of the Products and external components, including transient characteristics, as well as static characteristics. 2. You agree that application notes, reference designs, and associated data and information contained in this document are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses incurred by you or third parties arising from the use of such information. Precaution for Electrostatic This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron, isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control). Precaution for Storage / Transportation 1. Product performance and soldered connections may deteriorate if the Products are stored in the places where: [a] the Products are exposed to sea winds or corrosive gases, including Cl 2, H2S, NH3, SO2, and NO2 [b] the temperature or humidity exceeds those recommended by ROHM [c] the Products are exposed to direct sunshine or condensation [d] the Products are exposed to high Electrostatic 2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is exceeding the recommended storage time period. 3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads may occur due to excessive stress applied when dropping of a carton. 4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of which storage time is exceeding the recommended storage time period. Precaution for Product Label A two-dimensional barcode printed on ROHM Products label is for ROHM’s internal use only. Precaution for Disposition When disposing Products please dispose them properly using an authorized industry waste company. Precaution for Foreign Exchange and Foreign Trade act Since concerned goods might be fallen under listed items of export control prescribed by Foreign exchange and Foreign trade act, please consult with ROHM in case of export. Precaution Regarding Intellectual Property Rights 1. All information and data including but not limited to application example contained in this document is for reference only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any other rights of any third party regarding such information or data. 2. ROHM shall not have any obligations where the claims, actions or demands arising from the combination of the Products with other articles such as components, circuits, systems or external equipment (including software). 3. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any third parties with respect to the Products or the information contained in this document. Provided, however, that ROHM will not assert its intellectual property rights or other rights against you or your customers to the extent necessary to manufacture or sell products containing the Products, subject to the terms and conditions herein. Other Precaution 1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM. 2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written consent of ROHM. 3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the Products or this document for any military purposes, including but not limited to, the development of mass-destruction weapons. 4. The proper names of companies or products described in this document are trademarks or registered trademarks of ROHM, its affiliated companies or third parties. Notice-PAA-E © 2015 ROHM Co., Ltd. All rights reserved. Rev.004 Datasheet General Precaution 1. Before you use our Products, you are requested to carefully read this document and fully understand its contents. ROHM shall not be in any way responsible or liable for failure, malfunction or accident arising from the use of any ROHM’s Products against warning, caution or note contained in this document. 2. All information contained in this document is current as of the issuing date and subject to change without any prior notice. Before purchasing or using ROHM’s Products, please confirm the latest information with a ROHM sales representative. 3. The information contained in this document is provided on an “as is” basis and ROHM does not warrant that all information contained in this document is accurate and/or error-free. ROHM shall not be in any way responsible or liable for an y damages, expenses or losses incurred b y you or third parties resulting from inaccuracy or errors of or concerning such information. Notice – WE © 2015 ROHM Co., Ltd. All rights reserved. Rev.001