INA 200 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 High-Side Measurement Current-Shunt Monitor with Open-Drain Comparator and Reference Check for Samples: INA200, INA201, INA202 FEATURES 1 • • • • • • • • • DESCRIPTION COMPLETE CURRENT SENSE SOLUTION 0.6V INTERNAL VOLTAGE REFERENCE INTERNAL OPEN-DRAIN COMPARATOR LATCHING CAPABILITY ON COMPARATOR COMMON-MODE RANGE: –16V to +80V HIGH ACCURACY: 3.5% MAX ERROR OVER TEMPERATURE BANDWIDTH: 500kHz (INA200) QUIESCENT CURRENT: 1800mA (max) PACKAGES: SO-8, MSOP-8 The INA200, INA201, and INA202 are high-side current-shunt monitors with voltage output. The INA200–INA202 can sense drops across shunts at common-mode voltages from –16V to 80V. The INA200–INA202 are available with three output voltage scales: 20V/V, 50V/V, and 100V/V, with up to 500kHz bandwidth. The INA200, INA201, and INA202 also incorporate an open-drain comparator and internal reference providing a 0.6V threshold. External dividers are used to set the current trip point. The comparator includes a latching capability, which can be made transparent by grounding (or leaving open) the RESET pin. APPLICATIONS • • • • • • • NOTEBOOK COMPUTERS CELL PHONES TELECOM EQUIPMENT AUTOMOTIVE POWER MANAGEMENT BATTERY CHARGERS WELDING EQUIPMENT The INA200, INA201, and INA202 operate from a single +2.7V to +18V supply, drawing a maximum of 1800mA of supply current. Package options include the very small MSOP-8 and the SO-8. All versions are specified over the extended operating temperature range of –40°C to +125°C. 1 INA200 (G = 20) INA201 (G = 50) INA202 (G = 100) V+ 2 OUT G VIN+ 8 VIN- 7 0.6V Reference 3 CMPIN Comparator 4 CMPOUT 6 GND RESET 5 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006–2010, Texas Instruments Incorporated INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION (1) PRODUCT GAIN INA200 (1) 20V/V INA201 50V/V INA202 100V/V PACKAGE-LEAD PACKAGE DESIGNATOR PACKAGE MARKING MSOP-8 DGK BQH INA200A SO-8 D MSOP-8 DGK BQJ SO-8 D INA201A MSOP-8 DGK BQL SO-8 D INA202A For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the device product folder at www.ti.com. ABSOLUTE MAXIMUM RATINGS (1) VALUE UNIT 18 V –18 to +18 V Supply Voltage, V+ Current-Shunt Monitor Analog Inputs, VIN+, VIN– Differential (VIN+) – (VIN–) Common Mode (2) –16 to +80 V Comparator Analog Input and Reset Pins (2) GND – 0.3 to (V+) + 0.3 V Analog Output, Out (2) GND – 0.3 to (V+) + 0.3 V GND – 0.3 to 18 V Comparator Output, Out Pin (2) Input Current Into Any Pin (2) 5 mA Operating Temperature –55 to +150 °C Storage Temperature –65 to +150 °C Junction Temperature +150 °C ES Human Body Model (HBM) D Charged Device Model (CDM) Rat ing s 4000 V 1000 V (1) (2) 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 supported. This voltage may exceed the ratings shown if the current at that pin is limited to 5mA. PIN CONFIGURATIONS INA200-INA202 V+ 1 8 VIN+ OUT 2 7 VIN- CMPIN 3 6 CMPOUT GND 4 5 RESET MSOP-8 (DGK), SO-8 (D) 2 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 ELECTRICAL CHARACTERISTICS: CURRENT-SHUNT MONITOR Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ connected from CMPOUT to VS, and CMPIN = GND, unless otherwise noted. INA200, INA201, INA202 CURRENT-SHUNT MONITOR PARAMETERS CONDITIONS MIN TYP MAX UNIT 0.15 (VS – 0.25)/Gain V INPUT Full-Scale Sense Input Voltage Common-Mode Input Range Common-Mode Rejection VSENSE VSENSE = VIN+ – VIN– VCM –16 CMR Over Temperature Offset Voltage, RTI (1) VIN+ = –16V to +80V 80 VIN+ = +12V to +80V 100 V 100 dB 123 mV +25°C to +125°C ±3 mV –40°C to +25°C ±3.5 vs Power Supply Input Bias Current, VIN– Pin ±0.5 dB ±2.5 vs Temperature VOS 80 dVOS/dT PSR mV TMIN to TMAX 5 VOUT = 2V, VIN+ = +18V, 2.7V 2.5 100 mV/V ±9 ±16 mA IB mV/°C OUTPUT (VSENSE ≥ 20mV) Gain: G INA200 20 V/V INA201 50 V/V INA202 100 Gain Error VSENSE = 20mV to 100mV Over Temperature VSENSE = 20mV to 100mV Total Output Error (2) VSENSE = 120mV, VS = +16V Over Temperature ±0.75 VSENSE = 120mV, VS = +16V Nonlinearity Error (3) Output Impedance ±0.2 VSENSE = 20mV to 100mV % ±2 % ±2.2 % ±3.5 % ±0.002 % 1.5 Ω No Sustained Oscillation 10 nF –16V ≤ VCM < 0V 300 RO Maximum Capacitive Load V/V ±1 OUTPUT (VSENSE < 20mV) (4) INA200, INA201, INA202 mV INA200 0V ≤ VCM ≤ VS, VS = 5V 0.4 V INA201 0V ≤ VCM ≤ VS, VS = 5V 1 V INA202 0V ≤ VCM ≤ VS, VS = 5V 2 VS < VCM ≤ 80V INA200, INA201, INA202 300 V mV VOLTAGE OUTPUT (5) Output Swing to the Positive Rail VIN– = 11V, VIN+ = 12V (V+) – 0.15 (V+) – 0.25 V Output Swing to GND (6) VIN– = 0V, VIN+ = –0.5V (VGND) + 0.004 (VGND) + 0.05 V INA200 CLOAD = 5pF 500 kHz INA201 CLOAD = 5pF 300 kHz INA202 CLOAD = 5pF 200 kHz Phase Margin CLOAD < 10nF 40 Degrees 1 V/ms 2 ms 40 nV/√Hz FREQUENCY RESPONSE Bandwidth: Slew Rate Settling Time (1%) BW SR VSENSE = 10mVPP to 100mVPP, CLOAD = 5pF NOISE, RTI Voltage Noise Density (1) (2) (3) (4) (5) (6) Offset is extrapolated from measurements of the output at 20mV and 100mV VSENSE. Total output error includes effects of gain error and VOS. Linearity is best fit to a straight line. For details on this region of operation, see the Accuracy Variations section in the Applications Information. See Typical Characteristic curve Output Swing vs Output Current. Specified by design. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 3 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com ELECTRICAL CHARACTERISTICS: COMPARATOR Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, and RPULL-UP = 5.1kΩ connected from CMPOUT to VS, unless otherwise noted. INA200, INA201, INA202 COMPARATOR PARAMETERS CONDITIONS MIN TYP MAX UNIT TA = +25°C 590 608 620 mV 625 mV OFFSET VOLTAGE Threshold Over Temperature 586 Hysteresis (1) TA = –40°C to +85°C –8 mV INPUT BIAS CURRENT (2) CMPIN Pin 0.005 vs Temperature 10 nA 15 nA INPUT VOLTAGE RANGE 0V to VS – 1.5V V CMP VOUT 1V to 4V, RL ≥ 15kΩ Connected to 5V 200 V/mV ILKG VID = 0.4V, VOH = VS 0.0001 1 mA VOL VID = –0.6V, IOL = 2.35mA 220 300 mV RL to 5V, CL = 15pF, 100mV Input Step with 5mV Overdrive 1.3 CMPIN Pin OUTPUT (OPEN-DRAIN) Large-Signal Differential Voltage Gain High-Level Leakage Current (3) (4) Low-Level Output Voltage (3) RESPONSE TIME Response Time (5) ms RESET RESET Threshold (6) Logic Input Impedance Minimum RESET Pulse Width RESET Propagation Delay (1) (2) (3) (4) (5) (6) 1.1 V 2 MΩ 1.5 ms 3 ms Hysteresis refers to the threshold (the threshold specification applies to a rising edge of a noninverting input) of a falling edge on the noninverting input of the comparator; refer to Figure 1. Specified by design. VID refers to the differential voltage at the comparator inputs. Open-drain output can be pulled to the range of +2.7V to +18V, regardless of VS. The comparator response time specified is the interval between the input step function and the instant when the output crosses 1.4V. The RESET input has an internal 2MΩ (typical) pull-down. Leaving RESET open results in a LOW state, with transparent comparator operation. VTHRESHOLD 0.592V 0.6V Input Voltage Hysteresis = VTHRESHOLD - 8mV Figure 1. Typical Comparator Hysteresis 4 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 ELECTRICAL CHARACTERISTICS: GENERAL Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ connected from CMPOUT to VS, and CMPIN = 1V, unless otherwise noted. INA200, INA201, INA202 GENERAL PARAMETERS CONDITIONS MIN TYP MAX UNIT +18 V POWER SUPPLY Operating Power Supply VS Quiescent Current +2.7 IQ VOUT = 2V Over Temperature 1350 VSENSE = 0mV Comparator Power-On Reset Threshold (1) 1800 mA 1850 mA 1.5 V TEMPERATURE Specified Temperature Range –40 +125 °C Operating Temperature Range –55 +150 °C Storage Temperature Range –65 +150 °C Thermal Resistance (1) qJA MSOP-8 Surface-Mount 200 °C/W SO-8 150 °C/W The INA200, INA201, and INA202 are designed to power-up with the comparator in a defined reset state as long as RESET is open or grounded. The comparator is in reset as long as the power supply is below the voltage shown here. The comparator assumes a state based on the comparator input above this supply voltage. If RESET is high at power-up, the comparator output comes up high and requires a reset to assume a low state, if appropriate. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 5 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted. GAIN vs FREQUENCY 45 G = 20 25 20 30 G = 20 25 20 15 15 10 10 5 5 10k 100k 10k 1M 100k Frequency (Hz) Figure 2. Figure 3. GAIN PLOT COMMON-MODE AND POWER-SUPPLY REJECTION vs FREQUENCY 140 18 130 Common-Mode and Power-Supply Rejection (dB) 100V/V 16 14 50V/V 12 10 8 20V/V 6 4 120 CMR 110 100 90 PSR 80 70 60 50 2 40 0 20 100 200 300 400 500 600 700 800 900 10 100 1k 10k 100k Frequency (Hz) Figure 4. Figure 5. OUTPUT ERROR vs VSENSE OUTPUT ERROR vs COMMON-MODE VOLTAGE 4.0 0.1 3.5 0.09 0.08 3.0 Output Error (% ) Output Error (% error of the ideal output value) VDIFFERENTIAL (mV) 2.5 2.0 1.5 1.0 0.07 0.06 0.05 0.04 0.03 0.02 0.5 0.01 0 0 50 100 150 200 250 300 350 400 450 500 0 -16 -12 -8 -4 VSENSE (mV) Submit Documentation Feedback 0 4 8 12 16 20 ... 76 80 Common-Mode Voltage (V) Figure 6. 6 1M Frequency (Hz) 20 VOUT (V) G = 50 35 Gain (dB) 30 G = 100 40 G = 50 35 Gain (dB) CLOAD = 1000pF G = 100 40 GAIN vs FREQUENCY 45 Figure 7. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted. POSITIVE OUTPUT VOLTAGE SWING vs OUTPUT CURRENT QUIESCENT CURRENT vs OUTPUT VOLTAGE 3.5 12 11 VS = 12V 10 9 6 VS = 3V 5 Sourcing Current +25°C 4 3 -40°C Output stage is designed to source current. Current sinking capability is approximately 400mA. 2 1 +125°C 0 0 2.0 1.5 1.0 0.5 0 5 10 20 15 25 30 0 1 2 3 4 5 7 9 10 9.5 10.5 11.5 17 18 6 8 Output Current (mA) Output Voltage (V) Figure 8. Figure 9. QUIESCENT CURRENT vs COMMON-MODE VOLTAGE OUTPUT SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE 34 VSENSE = 100mV 1.75 VS = 2.7V VS = 12V 1.50 IQ (mA) IQ (mA) -40°C +125°C 7 2.00 2.5 +25°C 8 Output Short-Circuit Current (mA) Output Voltage (V) 3.0 Sourcing Current 1.25 VS = 12V 1.00 VS = 2.7V VSENSE = 0mV 0.75 0.50 -16 -12 -8 -4 -40°C 30 +25°C 26 +125°C 22 18 14 10 6 0 4 8 12 16 20 24 28 32 36 2.5 3.5 4.5 5.5 6.5 7.5 8.5 VCM (V) Supply Voltage (V) Figure 10. Figure 11. STEP RESPONSE STEP RESPONSE G = 20 Output Voltage (50mV/div) Output Voltage (500mV/div) G = 20 VSENSE = 10mV to 20mV VSENSE = 10mV to 100mV Time (2ms/div) Time (2ms/div) Figure 12. Figure 13. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 7 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted. STEP RESPONSE STEP RESPONSE G = 50 Output Voltage (50mV/div) Output Voltage (100mV/div) G = 20 VSENSE = 90mV to 100mV VSENSE = 10mV to 20mV Time (2ms/div) Time (5ms/div) Figure 14. Figure 15. STEP RESPONSE STEP RESPONSE G = 50 Output Voltage (1V/div) Output Voltage (100mV/div) G = 50 VSENSE = 90mV to 100mV VSENSE = 10mV to 100mV Time (5ms/div) Time (5ms/div) Figure 16. Figure 17. STEP RESPONSE COMPARATOR VOL vs ISINK 600 G = 100 Output Voltage (2V/div) 500 VOL (mV) 400 300 200 100 VSENSE = 10mV to 100mV 0 Time (10ms/div) 0 1 2 3 4 5 6 ISINK (mA) Figure 18. 8 Submit Documentation Feedback Figure 19. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VS = +12V, VIN+ = 12V, and VSENSE = 100mV, unless otherwise noted. COMPARATOR TRIP POINT vs SUPPLY VOLTAGE COMPARATOR TRIP POINT vs TEMPERATURE 600 602 Comparator Trip Point (mV) 599 Reset Voltage (mV) 598 597 596 595 594 593 592 601 600 599 598 597 591 596 590 4 6 8 10 12 14 16 18 -50 0 -25 25 50 75 100 Supply Voltage (V) Temperature (°C) Figure 20. Figure 21. COMPARATOR PROPAGATION DELAY vs OVERDRIVE VOLTAGE COMPARATOR RESET VOLTAGE vs SUPPLY VOLTAGE 200 1.2 175 1.0 Reset Voltage (V) Propagation Delay (ns) 2 150 125 100 75 125 0.8 0.6 0.4 0.2 50 0 0 20 40 60 80 100 120 140 160 180 200 2 4 6 8 10 12 14 16 Overdrive Voltage (mV) Supply Voltage (V) Figure 22. Figure 23. COMPARATOR PROPAGATION DELAY vs TEMPERATURE COMPARATOR PROPAGATION DELAY 18 300 Propagation Delay (ns) 275 Input 200mV/div 250 225 200 Output 2V/div 175 150 125 -50 VOD = 5mV -25 0 25 50 75 100 125 2ms/div Temperature (°C) Figure 24. Figure 25. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 9 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com APPLICATIONS INFORMATION BASIC CONNECTIONS Figure 26 shows the basic connections of the INA200, INA201, and INA202. The input pins, VIN+ and VIN–, should be connected as closely as possible to the shunt resistor to minimize any resistance in series with the shunt resistance. Power-supply bypass capacitors are required for stability. Applications with noisy or high-impedance power supplies may require additional decoupling capacitors to reject power-supply noise. Connect bypass capacitors close to the device pins. POWER SUPPLY The input circuitry of the INA200, INA201, and INA202 can accurately measure beyond the power-supply voltage, V+. For example, the V+ power supply can be 5V, whereas the load power-supply voltage is up to +80V. The output voltage range of the OUT terminal, however, is limited by the voltages on the power-supply pin. ACCURACY VARIATIONS AS A RESULT OF VSENSE AND COMMON-MODE VOLTAGE The accuracy of the INA200, INA201, and INA202 current shunt monitors is a function of two main variables: VSENSE (VIN+ – VIN–) and common-mode voltage, VCM, relative to the supply voltage, VS. VCM is expressed as (VIN+ + VIN–)/2; however, in practice, VCM is seen as the voltage at VIN+ because the voltage drop across VSENSE is usually small. This section addresses the accuracy of these specific operating regions: • Normal Case 1: VSENSE ≥ 20mV, VCM ≥ VS • Normal Case 2: VSENSE ≥ 20mV, VCM < VS • Low VSENSE Case 1: VSENSE < 20mV, –16V ≤ VCM <0 • Low VSENSE Case 2: VSENSE < 20mV, 0V ≤ VCM ≤ VS • Low VSENSE Case 3: VSENSE < 20mV, VS < VCM ≤ 80V RSHUNT 3mW Load Supply -18V to +80V Load 5V Supply INA200 (G = 20) 1 V+ 2 OUT CBYPASS 0.01mF G VIN+ 8 VIN- 7 CMPOUT 6 RESET 5 RPULL-UP 4.7kW 0.6V Reference R1 3 CMPIN Comparator R2 4 GND Transparent/Reset Latch Figure 26. INA200 Basic Connections 10 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 Normal Case 1: VSENSE ≥ 20mV, VCM ≥ VS This region of operation provides the highest accuracy. Here, the input offset voltage is characterized and measured using a two-step method. First, the gain is determined by Equation 1. VOUT1 - VOUT2 G= 100mV - 20mV (1) larger-than-normal offset can appear at the current shunt monitor output with a typical maximum value of VOUT = 300mV for VSENSE = 0mV. As VSENSE approaches 20mV, VOUT returns to the expected output value with accuracy as specified in the Electrical Characteristics. Figure 27 illustrates this effect using the INA202 (Gain = 100). 2.0 where: 1.8 1.6 VOUT2 = Output Voltage with VSENSE = 20mV 1.4 Then the offset voltage is measured at VSENSE = 100mV and referred to the input (RTI) of the current shunt monitor, as shown in Equation 2. VOUT1 VOSRTI (Referred-To-Input) = - 100mV G (2) In the Typical Characteristics, the Output Error vs Common-Mode Voltage curve (Figure 7) shows the highest accuracy for the this region of operation. In this plot, VS = 12V; for VCM ≥ 12V, the output error is at its minimum. This case is also used to create the VSENSE ≥ 20mV output specifications in the Electrical Characteristics table. Normal Case 2: VSENSE ≥ 20mV, VCM < VS This region of operation has slightly less accuracy than Normal Case 1 as a result of the common-mode operating area in which the part functions, as seen in the Output Error vs Common-Mode Voltage curve (Figure 7). As noted, for this graph VS = 12V; for VCM < 12V, the Output Error increases as VCM becomes less than 12V, with a typical maximum error of 0.005% at the most negative VCM = –16V. Low VSENSE Case 1: VSENSE < 20mV, –16V ≤ VCM < 0; and Low VSENSE Case 3: VSENSE < 20mV, VS < VCM ≤ 80V Although the INA200 family of devices are not designed for accurate operation in either of these regions, some applications are exposed to these conditions. For example, when monitoring power supplies that are switched on and off while VS is still applied to the INA200, INA201, or INA202, it is important to know what the behavior of the devices will be in these regions. VOUT (V) VOUT1 = Output Voltage with VSENSE = 100mV 1.2 Actual 1.0 0.8 Ideal 0.6 0.4 0.2 0 0 2 4 6 8 10 12 14 16 18 20 VSENSE (mV) Figure 27. Example for Low VSENSE Cases 1 and 3 (INA202, Gain = 100) Low VSENSE Case 2: VSENSE < 20mV, 0V ≤ VCM ≤ VS This region of operation is the least accurate for the INA200 family. To achieve the wide input common-mode voltage range, these devices use two op amp front ends in parallel. One op amp front end operates in the positive input common-mode voltage range, and the other in the negative input region. For this case, neither of these two internal amplifiers dominates and overall loop gain is very low. Within this region, VOUT approaches voltages close to linear operation levels for Normal Case 2. This deviation from linear operation becomes greatest the closer VSENSE approaches 0V. Within this region, as VSENSE approaches 20mV, device operation is closer to that described by Normal Case 2. Figure 28 illustrates this behavior for the INA202. The VOUT maximum peak for this case is tested by maintaining a constant VS, setting VSENSE = 0mV and sweeping VCM from 0V to VS. The exact VCM at which VOUT peaks during this test varies from part to part, but the VOUT maximum peak is tested to be less than the specified VOUT tested limit. As VSENSE approaches 0mV, in these VCM regions, the device output accuracy degrades. A Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 11 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 2.4 2.2 INA202 VOUT Tested Limit series with the inputs since the internal gain resistors can vary up to ±30%. (If gain accuracy is not important, then resistors can be added in series with the INA200, INA201, and INA202 inputs with two equal resistors on each input.) (1) VCM1 2.0 Ideal 1.8 VCM2 1.6 VOUT (V) www.ti.com 1.4 VCM3 1.2 OUTPUT VOLTAGE RANGE 1.0 0.8 VOUT tested limit at VSENSE = 0mV, 0 £ VCM1 £ VS. VCM4 0.6 VCM2, VCM3, and VCM4 illustrate the variance from part to part of the VCM that can cause maximum VOUT with VSENSE < 20mV. 0.4 0.2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 VSENSE (mV) NOTE: (1) INA200 VOUT Tested Limit = 0.4V. INA201 VOUT Tested Limit = 1V. Figure 28. Example for Low VSENSE Case 2 (INA202, Gain = 100) SELECTING RS The value chosen for the shunt resistor, RS, depends on the application and is a compromise between small-signal accuracy and maximum permissible voltage loss in the measurement line. High values of RS provide better accuracy at lower currents by minimizing the effects of offset, while low values of RS minimize voltage loss in the supply line. For most applications, best performance is attained with an RS value that provides a full-scale shunt voltage range of 50mV to 100mV. Maximum input voltage for accurate measurements is 500mV. TRANSIENT PROTECTION The –16V to +80V common-mode range of the INA200, INA201, and INA202 is ideal for withstanding automotive fault conditions ranging from 12V battery reversal up to +80V transients, since no additional protective components are needed up to those levels. In the event that the INA200, INA201, and INA202 are exposed to transients on the inputs in excess of their ratings, then external transient absorption with semiconductor transient absorbers (such as zeners) will be necessary. Use of MOVs or VDRs is not recommended except when they are used in addition to a semiconductor transient absorber. Select the transient absorber such that it will never allow the INA200, INA201, and INA202 to be exposed to transients greater than +80V (that is, allow for transient absorber tolerance, as well as additional voltage due to transient absorber dynamic impedance). Despite the use of internal zener-type ESD protection, the INA200, INA201, and INA202 do not lend themselves to using external resistors in 12 Submit Documentation Feedback The output of the INA200, INA201, and INA202 is accurate within the output voltage swing range set by the power supply pin, V+. This performance is best illustrated when using the INA202 (a gain of 100 version), where a 100mV full-scale input from the shunt resistor requires an output voltage swing of +10V, and a power-supply voltage sufficient to achieve +10V on the output. INPUT FILTERING An obvious and straightforward location for filtering is at the output of the INA200, INA201, and INA202 series; however, this location negates the advantage of the low output impedance of the internal buffer. The only other option for filtering is at the input pins of the INA200, INA201, and INA202, which is complicated by the internal 5kΩ + 30% input impedance; this is illustrated in Figure 29. Using the lowest possible resistor values minimizes both the initial shift in gain and effects of tolerance. The effect on initial gain is given by Equation 3: Gain Error % = 100 - 100 ´ 5kW 5kW + RFILT (3) Total effect on gain error can be calculated by replacing the 5kΩ term with 5kΩ – 30%, (or 3.5kΩ) or 5kΩ + 30% (or 6.5kΩ). The tolerance extremes of RFILT can also be inserted into the equation. If a pair of 100Ω 1% resistors are used on the inputs, the initial gain error will be 1.96%. Worst-case tolerance conditions will always occur at the lower excursion of the internal 5kΩ resistor (3.5kΩ), and the higher excursion of RFILT – 3% in this case. Note that the specified accuracy of the INA200, INA201, and INA202 must then be combined in addition to these tolerances. While this discussion treated accuracy worst-case conditions by combining the extremes of the resistor values, it is appropriate to use geometric mean or root sum square calculations to total the effects of accuracy variations. COMPARATOR The INA200, INA201, and INA202 devices incorporate an open-drain comparator. This comparator typically has 2mV of offset and a 1.3ms (typical) response time. The output of the comparator latches and is reset through the RESET pin; see Figure 30. Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 RSHUNT << RFILTER 3mW VSUPPLY Load RFILTER < 100W INA200-INA202 RFILTER <100W CFILTER VIN+ V+ 1 OUT 2 CMPIN 3 GND 4 8 G 0.6V Reference VIN7 f-3dB 6 CMPOUT f-3dB = Comparator 5 1 2p(2RFILTER)CFILTER RESET SO-14, TSSOP-14 Figure 29. Input Filter (Gain Error—1.5% to –2.2%) 0.6V VIN 0V CMPOUT RESET Figure 30. Comparator Latching Capability Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 13 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com Shunt Option 1 Shunt Option 2 Supply R3 To VIN+ To VIN- To VIN- To VIN+ 4.5V to 5.5V R4 Q1 2N3904 Load INA200 (G = 20) INA201 (G = 50) INA202 (G = 100) 1 V+ To VIN+ 2 OUT G VIN+ 8 VIN- 7 CMPOUT 6 RESET 5 Shunt Option 3 From Shunt Option 1, 2, or 3 To VIN- 0.6V Reference R1 3 CMPIN Comparator R2 4 GND RESET NOTE: Q1 cascodes the comparator output to drive a high-side FET (the 2N3904 shown is good up to 60V). The shunt could be located in any one of the three locations shown. The latching capability should be used in shutdown applications to prevent oscillation at the trip point. Figure 31. High-Side Switch Over-Current Shutdown 14 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 Shunt Option 1 Supply To VIN+ 4.5V to 5.5V To VIN- Load To VIN+ INA200 (G = 20) INA201 (G = 50) INA202 (G = 100) 1 V+ 2 OUT G R4 2.2kW VIN+ 8 VIN- 7 From Shunt Option 1, 2, or 3 To VIN- R1 22kW 0.6V Reference R1 Shunt Option 2 To VIN+ Shunt Option 3 3 CMPIN Comparator R2 4 GND CMPOUT 6 RESET 5 Q1 2N3904 To VIN- RESET NOTE: In this case, Q1 is used to invert the comparator output. Figure 32. Low-Side Switch Over-Current Shutdown Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 15 INA200 INA201 INA202 SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 www.ti.com RSHUNT Supply 4.5V to 5.5V 1 V+ INA200 (G = 20) INA201 (G = 50) INA202 (G = 100) 2 OUT G VIN+ 8 VIN- 7 CMPOUT 6 RESET 5 R5 2.2kW 0.6V Reference R1 3 CMPIN Comparator R2 4 GND 1 V+ RESET INA200 (G = 20) INA201 (G = 50) INA202 (G = 100) 2 OUT G R6 2.2kW VIN+ 8 VIN- 7 CMPOUT 6 RESET 5 0.6V Reference R3 3 CMPIN Comparator R4 4 GND CMPOUT R7 200kW RESET NOTE: It is possible to set different limits for each direction. Figure 33. Bidirectional Over-Current Comparator 16 Submit Documentation Feedback Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 INA200 INA201 INA202 www.ti.com SBOS374C – NOVEMBER 2006 – REVISED OCTOBER 2010 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (October, 2007) to Revision C Page • Changed title of data sheet ................................................................................................................................................... 1 • Updated document format to current standards ................................................................................................................... 1 • Revised front-page figure ..................................................................................................................................................... 1 Copyright © 2006–2010, Texas Instruments Incorporated Product Folder Link(s): INA200 INA201 INA202 Submit Documentation Feedback 17 PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 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) INA200AID ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 200A INA200AIDG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 200A INA200AIDGKR ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQH INA200AIDGKRG4 ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQH INA200AIDGKT ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQH INA200AIDGKTG4 ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQH INA200AIDR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 200A INA200AIDRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 200A INA201AID ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 201A INA201AIDG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 201A INA201AIDGKR ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU | CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQJ INA201AIDGKRG4 ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 BQJ INA201AIDGKT ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU NIPDAU | CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQJ INA201AIDGKTG4 ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 BQJ INA201AIDR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 201A INA201AIDRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 201A INA202AID ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 202A Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 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) INA202AIDG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 202A INA202AIDGKR ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU | CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQL INA202AIDGKRG4 ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 BQL INA202AIDGKT ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU NIPDAU | CU NIPDAUAG Level-2-260C-1 YEAR -40 to 125 BQL INA202AIDGKTG4 ACTIVE VSSOP DGK 8 250 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 BQL INA202AIDR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 202A INA202AIDRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 INA 202A (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. (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. Addendum-Page 2 Samples PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. 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OTHER QUALIFIED VERSIONS OF INA200, INA201, INA202 : • Automotive: INA200-Q1, INA201-Q1, INA202-Q1 NOTE: Qualified Version Definitions: • Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects Addendum-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 29-Nov-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing INA200AIDGKR VSSOP DGK 8 INA200AIDGKT VSSOP DGK INA200AIDR SOIC D INA201AIDGKR VSSOP INA201AIDGKT VSSOP SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 8 250 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 DGK 8 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 INA201AIDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 INA202AIDGKR VSSOP DGK 8 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 INA202AIDGKT VSSOP DGK 8 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 INA202AIDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 29-Nov-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) INA200AIDGKR VSSOP DGK 8 2500 366.0 364.0 50.0 INA200AIDGKT VSSOP DGK 8 250 366.0 364.0 50.0 INA200AIDR SOIC D 8 2500 367.0 367.0 35.0 INA201AIDGKR VSSOP DGK 8 2500 367.0 367.0 35.0 INA201AIDGKT VSSOP DGK 8 250 210.0 185.0 35.0 INA201AIDR SOIC D 8 2500 367.0 367.0 35.0 INA202AIDGKR VSSOP DGK 8 2500 367.0 367.0 35.0 INA202AIDGKT VSSOP DGK 8 250 210.0 185.0 35.0 INA202AIDR SOIC D 8 2500 367.0 367.0 35.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. 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