Datasheet

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DBV PACKAGE

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OUT

GND

IN+

V+

IN-

INA193A-EP

www.ti.com

SBOS400A –MAY 2007–REVISED SEPTEMBER 2013

CURRENT SHUNT MONITORS

–16-V to 80-V COMMON MODE RANGE

Check for Samples: INA193A-EP

FEATURES

SUPPORTS DEFENSE, AEROSPACE,

AND MEDICAL APPLICATIONS

• Wide Common-Mode Voltage:

–16 V to 80 V • Controlled Baseline

• Low Error: 3.0% Over Temp (Max) • One Assembly/Test Site

• Bandwidth: Up to 500 kHz • One Fabrication Site

• Three Transfer Functions Available: 20 V/V, • Available in Military (–55°C/125°C)

50 V/V, and 100 V/V Temperature Range

(1)

• Complete Current Sense Solution • Extended Product Life Cycle

• Extended Product-Change Notification

APPLICATIONS

• Product Traceability

• Welding Equipment

• Notebook Computers

• Cell Phones

• Telecom Equipment

• Automotive

• Power Management

• Battery Chargers (1) Additional temperature ranges available - contact factory

DESCRIPTION

The INA193A current shunt monitors with voltage output can sense drops across shunts at common-mode

voltages from –16 V to 80 V, independent of the INA19x supply voltage. They are available with three output

voltage scales: 20 V/V, 50 V/V, and 100 V/V. The 500-kHz bandwidth simplifies use in current control loops.

The INA193A operates from a single 2.7-V to 18-V supply, drawing a maximum of 1300-μA of supply current. It

is specified over the extended operating temperature range (–55°C to 125°C), and is offered in a space-saving

SOT23 package.

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.

Summary of content (23 pages)

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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 CURRENT SHUNT MONITORS –16-V to 80-V COMMON MODE RANGE Check for Samples: INA193A-EP FEATURES 1 • • • • • Wide Common-Mode Voltage: –16 V to 80 V Low Error: 3.
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 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.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX Supply voltage VIN+ VIN– 18 –18 18 Common mode (2) –16 80 GND – 0.3 (V+) + 0.
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com Electrical Characteristics (continued) VS = + 12 V. Boldface limits apply over the specified temperature range, TA = –55°C to 125°C. All specifications at TA = 25°C, VS = 12 V, VIN+ = 12 V, and VSENSE = 100 mV (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT OUTPUT (VSENSE < 20 mV) (2) –16 V ≤ VCM < 0 V 300 0 V ≤ VCM ≤ VS, VS = 5 V VS < VCM ≤ 80 V VOLTAGE OUTPUT (3) mV 0.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 TYPICAL CHARACTERISTICS All specifications at TA = 25°C, VS = 12 V, and VIN+ = 12 V, and VSENSE = 100 mV (unless otherwise noted).
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VS = 12 V, and VIN+ = 12 V, and VSENSE = 100 mV (unless otherwise noted).
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 TYPICAL CHARACTERISTICS (continued) All specifications at TA = 25°C, VS = 12 V, and VIN+ = 12 V, and VSENSE = 100 mV (unless otherwise noted).
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com APPLICATION INFORMATION Basic Connection Figure 1 shows the basic connection of INA193A. 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.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 This section addresses the accuracy of these specific operating regions: Normal Case 1: VSENSE ≥ 20 mV, VCM ≥ VS Normal Case 2: VSENSE ≥ 20 mV, VCM < VS Low VSENSE Case 1: VSENSE < 20 mV, –16 V ≤ VCM < 0 Low VSENSE Case 2: VSENSE < 20 mV, 0 V ≤ VCM ≤ VS Low VSENSE Case 3: VSENSE < 20 mV, VS < VCM ≤ 80 V Normal Case 1: VSENSE ≥ 20 mV, VCM ≥ VS This region of operation provides the highest accuracy.
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com 2.0 1.8 1.6 VOUT (V) 1.4 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 2. Example for Low VSENSE Cases 1 and 3 (INA195A, INA198A: Gain = 100) Low VSENSE Case 2: VSENSE < 20 mV, 0 V ≤ VCM ≤ VS This region of operation is the least accurate for the INA193A. To achieve the wide input common-mode voltage range, these devices use two op amp front ends in parallel.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 Shutdown Because the INA193A consumes a quiescent current less than 1 mA, it can be powered by either the output of logic gates or by transistor switches to supply power. Use a totem pole output buffer or gate that can provide sufficient drive along with 0.1-μF bypass capacitor, preferably ceramic with good high frequency characteristics.
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com Output Voltage Range The output of the INA193A is accurate within the output voltage swing range set by the power-supply pin, V+. This is best illustrated when using the INA195A or INA198A (which are both versions using a gain of 100), where a 100 mV full-scale input from the shunt resistor requires an output voltage swing of 10 V, and a power-supply voltage sufficient to achieve 10 V on the output.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 RSHUNT << RFILTER LOAD VSUPPLY RFILT < 100 W RFILT < 100 W CFILT f-3dB f-3dB = 1 2p (2 RFILT) CFILT +5 V VIN+ VIN- R1 5 kW V+ R1 5 kW OUT INA193A RL Figure 5. Input Filter (Gain Error – 15% to –2.2%) Inside the INA193A The INA193A uses a new, unique internal circuit topology that provides common-mode range extending from –16 V to 80 V while operating from a single power supply.
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com Negative and Positive Common-Mode Voltage IS RS VIN+ V+ VIN+ VIN(1) Load (1) R1 5 kW R1 5 kW A1 A2 OUT NOTE: (1) Nominal resistor value is shown. ±15% variation is possible. Resistor ratio is matched to ±1%. G = 20, RL = 100 kW INA193A (1) RL Figure 6.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 RSHUNT LOAD –12 V I1 5V VIN+ VIN- V+ V+ OUT for 12-V Common-Mode INA193A GND OUT for -12 V Common-Mode INA193A VIN+ VIN- GND RSHUNT –12 V LOAD I2 Figure 7.
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INA193A-EP SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 www.ti.com RSHUNT LOAD VSUPPLY 5V VIN+ VIN- 5V VIN+ V+ VIN- V+ 5V INA152A 40 kW OUT 40 kW OUT VOUT INA193A INA193A 40 kW 40 kW 2.5 V VREF Figure 8. Bidirectional Current Monitoring Up to 80 V RSHUNT Solenoid VIN+ 2.7 V to 18 V VINV+ OUT INA193A Figure 9.
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INA193A-EP www.ti.com SBOS400A – MAY 2007 – REVISED SEPTEMBER 2013 VIN+ VIN- V+ For output signals > comparator trip-point. R1 OUT TLV3012 INA193A R2 REF 1.25-V Internal Reference (a) INA193A output adjusted by voltage divider VIN+ VIN- V+ OUT TLV3012 INA193A R1 (b) Comparator reference voltage adjusted by voltage divider R2 REF 1.25-V Internal Reference For use with small output signals Figure 10.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-May-2014 TAPE AND REEL INFORMATION *All dimensions are nominal Device INA193AMDBVREP Package Package Pins Type Drawing SPQ SOT-23 3000 DBV 5 Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 178.0 9.0 Pack Materials-Page 1 3.23 B0 (mm) K0 (mm) P1 (mm) 3.17 1.37 4.0 W Pin1 (mm) Quadrant 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-May-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) INA193AMDBVREP SOT-23 DBV 5 3000 180.0 180.0 18.
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