SBOS977A March   2019  – May 2021 INA302-Q1 , INA303-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Bidirectional Current Sensing
      2. 7.3.2 Out-of-Range Detection
      3. 7.3.3 Alert Outputs
        1. 7.3.3.1 Setting Alert Thresholds
          1. 7.3.3.1.1 Resistor-Controlled Current Limit
            1. 7.3.3.1.1.1 Resistor-Controlled Current Limit: Example
          2. 7.3.3.1.2 Voltage-Source-Controlled Current Limit
        2. 7.3.3.2 Hysteresis
    4. 7.4 Device Functional Modes
      1. 7.4.1 Alert Operating Modes
        1. 7.4.1.1 Transparent Output Mode
        2. 7.4.1.2 Latch Output Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Selecting a Current-Sensing Resistor (RSENSE)
        1. 8.1.1.1 Selecting a Current-Sensing Resistor: Example
      2. 8.1.2 Input Filtering
      3. 8.1.3 Using the INA30x-Q1 With Common-Mode Transients Greater Than 36 V
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Related Links
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.5 Electrical Characteristics

at TA = 25°C, VSENSE = 0 V, VREF = VS / 2, VS = 5 V, VIN+ = 12 V, VLIMIT1 = 3 V, and VLIMIT2 = 3 V (INA302-Q1) or 2 V (INA303-Q1) (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
INPUT
VINDifferential input voltage rangeVIN = VIN+ – VIN–, VREF = VS / 2, 
A1 versions		0±125mV
VIN = VIN+ – VIN–, VREF = VS / 2,
A2 versions		0±50
VIN = VIN+ – VIN–, VREF = VS / 2,
A3 versions		0±25
CMRRCommon-mode rejection ratioVIN+ = 0 V to 36 V,
TA = –40°C to +125°C, A1 versions		100114dB
VIN+ = 0 V to 36 V, TA = –40°C to +125°C, A2 versions106118
VIN+ = 0 V to 36 V,
TA = –40°C to +125°C, A3 versions		110120
VOSOffset voltage, RTI(1)A1 versions±15±80µV
A2 versions±10±50
A3 versions±5±30
dVOS/dTOffset voltage drift, RTI(1)TA= –40°C to +125°C0.020.25µV/°C
PSRRPower-supply rejection ratioVS = 2.7 V to 5.5 V, VIN+ = 12 V,
TA = –40°C to +125°C		±0.3±5µV/V
IBInput bias currentIB+, IB–115µA
IOSInput offset currentVSENSE = 0 mV±0.01µA
OUTPUT
GGainA1 versions20V/V
A2 versions50
A3 versions100
Gain errorVOUT = 0.5 V to VS – 0.5 V, A1 versions±0.02%±0.075%
VOUT = 0.5 V to VS – 0.5 V, A2 versions±0.05%±0.1%
VOUT = 0.5 V to VS – 0.5 V, A3 versions±0.1%±0.15%
TA= –40°C to +125°C310ppm/°C
Nonlinearity errorVOUT = 0.5 V to VS – 0.5 V±0.01%
Maximum capacitive loadNo sustained oscillation500pF
VOLTAGE OUTPUT
Swing to VS power-supply railRL = 10 kΩ to GND,
TA = –40°C to +125°C		VS – 0.05VS – 0.1V
Swing to GNDRL = 10 kΩ to GND,
TA = –40°C to +125°C		VGND + 15VGND + 30mV
FREQUENCY RESPONSE
BWBandwidthA1 versions, COUT = 500 pF550kHz
A2 versions, COUT = 500 pF440
A3 versions, COUT = 500 pF400
SRSlew rate4V/µs
NOISE, RTI(1)
Voltage noise density30nV/√ Hz
COMPARATOR
tpTotal alert propagation delayComparator 1, input overdrive = 1 mV0.61µs
Comparator 2, input overdrive = 1 mV, delay = 100 kΩ to VS1.252
Slew-rate-limited tpComparator 1, VOUT step = 0.5 V to 4.5 V, VLIMIT = 4 V11.5µs
Comparator 2 (INA302-Q1),
VOUT step = 0.5 V to 4.5 V, VLIMIT = 4 V, delay = 100 kΩ to VS		1.52.5
Comparator 2 (INA303-Q1),
VOUT step = 4.5 V to 0.5 V, VLIMIT = 1 V, delay = 100 kΩ to VS		1.52.5
ILIMIT1Limit threshold output current,
comparator 1		TA = 25°C, VLIMIT1 < VS – 0.6 V79.28080.8µA
TA = –40°C to +125°C, 
VLIMIT1 < VS – 0.6 V		78.481.6
ILIMIT2Limit threshold output current,
comparator 2		TA = 25°C, VLIMIT2 < VS – 0.6 V79.78080.4µA
TA = –40°C to +125°C, 
VLIMIT2 < VS – 0.6 V		79.280.8
VOSOffset voltage, both comparatorsA1 versions0.53.5mV
A2 versions0.53.5
A3 versions0.54.0
HYSHysteresiscomparator 1, comparator 2100mV
Internal programmable delay errorTA = –40°C to +125°C4%
VTHDelay threshold voltageTA = –40°C to +125°C1.211.221.23V
IDDelay charging currentTA = –40°C to +125°C, VDELAY = 0.6 V4.8555.15µA
RDDelay discharge resistance70Ω
VIHLATCH1, LATCH2 high-level input voltageTA = –40°C to +125°C1.46V
VILLATCH1, LATCH2 low-level input voltageTA = –40°C to +125°C00.4V
VOLAlert low-level output voltageIOL = 3 mA, TA = –40°C to +125°C70400mV
ALERT1, ALERT2 pin leakage input currentVOH = 3.3 V0.11µA
LATCH1, LATCH2 digital leakage input current0 V ≤ VLATCH1 , VLATCH2 ≤ VS1µA
POWER SUPPLY
IQQuiescent currentTA = 25°C850950µA
TA = –40°C to +125°C1150
(1) RTI = referred-to-input.