DIA221X DIOO | Alldatasheet
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Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.I 75VCommon-ModeVoltage,High-SideCurrent-Sense AmplifierwithComparatorandReference Features AEC-Q100 qualified − Device ambient temperature: -40°C ≤ TA ≤ 125°C − Device junction temperature: -40°C ≤ TJ ≤ 150°C Supply voltage of 3 V to 40 V Low quiescent current: 470 μA (typ) Current sense amplifier − Low offset voltage of ±0.1 mV (max) − 1% max total output error over temperature − Common-mode voltage of -0.1 V to 75 V − High slew rate of 3 V/µs Options for gain/bandwidth: − DIA2210: 20 V/V, 440 kHz − DIA2211: 50 V/V, 110 kHz − DIA2212: 100 V/V, 65 kHz Integrate open-drain comparator with selectable latch function through controlling RESET pin Internal voltage reference: 0.6 V Applications Electric power steering (EPS) systems Body control modules Brake systems Electronic stability control (ESC) systems PackageInformation PartNumber Package BodySize DIA221X MSOP-8 3.0 mm × 3.0 mm Description The DIA221X series is a device integrates a high-side current-sense amplifier, a comparator and a voltage reference. The wide common-mode voltage range from -0.1 V to 75 V enables the device to be used in various applications. The common mode voltage is independent of the supply voltage. The total output error is as low as 1% over temperature, which greatly improves the accuracy and simplifies the design of system. The DIA221X series is integrated with an open-drain comparator and internal reference at 0.6 V voltage. The comparator includes a latching capability, and can be made transparent by grounding the RESET pin. The DIA221X series operates from single 3 V to 40 V supply under -40°C to 125°C, with a maximum supply current of 620 μA. SimplifiedSchematic
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD. II OrderingInformation OrderingPartNo. TopMarking MSL RoHS TA Package DIA2210MP8 DIABB1V 3 Green -40 to 125°C MSOP-8 Tape & Reel, 3000 DIA2211MP8 DIABB1A 3 Green -40 to 125°C MSOP-8 Tape & Reel, 3000 DIA2212MP8 DIABB1B 3 Green -40 to 125°C MSOP-8 Tape & Reel, 3000 If you encounter any issue in the process of using the device, please contact our customer service at marketing@dioo.com or phone us at (+86)-21-62116882. If you have any improvement suggestions regarding the datasheet, we encourage you to contact our technical writing team at docs@dioo.com. Your feedback is invaluable for us to provide a better user experience.
- PinAssignmentandFunctions
Figure 1. MSOP-8 (Top view)
1 VS Power supply
2 OUT O Output voltage of the amplifier
3 CMPIN I Non-inverting input of the comparator
4 GND Ground
6 CMPOUT O Open-drain output of the comparator
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.2 2. AbsoluteMaximumRatings Exceeding the maximum ratings listed under Absolute Maximum Ratings when designing is likely to damage the device permanently. Do not design to the maximum limits because long-time exposure to them might impact the device’s reliability. The ratings are obtained over an operating free-air temperature range unless otherwise specified. Symbol Parameter Rating Unit VS Supply voltage 3 to 44 V VIN+, VIN- Current-shunt monitor analog inputs Differential (VIN+ ~ VIN-) -18 to 18 V Common mode (1) GND - 0.3 to 80 CMPIN and RESET Comparator analog input and reset pins (1) GND - 0.3 to (VS) + 0.3 V Out Analog output (1) GND - 0.3 to (VS) + 0.3 V CMPOUT Comparator output (1) GND - 0.3 to 40 V Input current into any pin (1) 5 mA TA Ambient temperature -40 to 125 °C TJ Junction temperature (Maximum) 150 °C TSTG Storage temperature -65 to 150 °C Note: (1) This voltage may exceed the ratings shown if the current at that pin is limited to 5 mA. 3. RecommendedOperatingConditions Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. The ratings are obtained over an operating free-air temperature range unless otherwise specified. Symbol Parameter Rating Unit VCM Common-mode input voltage -0.1 to 75 V VS Supply voltage 3 to 40 V TA Ambient temperature -40 to 125 °C
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.3 4. ESDRatings When a statically-charged person or object touches an electrostatic discharge sensitive device, the electrostatic charge might be drained through sensitive circuitry in the device. If the electrostatic discharge possesses sufficient energy, damage might occur to the device due to localized overheating. Model Standard Value Unit HBM ANSI/ESDA/JEDEC JS-001 ±2000 V 5. ThermalConsiderations The thermal resistance determines the heat insulation property of a material. The higher the thermal resistance is, the lower the heat loss. Accumulation of heat energy degrades the performance of semiconductor components. Symbol Parameter Value Unit RθJA Junction-to-ambient thermal resistance 162 °C/W RθJC(top) Junction-to-case (top) thermal resistance 38 °C/W
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.4 6. ElectricalCharacteristics 6.1. General The values are obtained under these conditions unless otherwise noted: TA = 25°C, VS = 12 V, VCM = 12 V, VSENSE = 100 mV, RL = 10 kΩ to GND, RPULL-UP = 5.1 kΩ connected from CMPOUT to VS, and CMPIN = 1 V. Symbol Parameter Conditions Min Typ Max Unit Powersupply IQ Quiescent current VOUT = 2 V, no load 470 620 μA Comparator power-on reset threshold 1.85 V Note: (1) Specifications subject to change without notice. 6.2. Current-shuntmonitor The values are obtained under these conditions unless otherwise specified: TA = 25°C, VS = 12 V, VCM = 12 V, VSENSE = 100 mV, RL = 10 kΩ to GND, and RPULL-UP = 5.1 kΩ connected from CMPOUT to VS, and CMPIN = GND. Symbol Parameter Conditions Min Typ Max Unit Input VSENSE Sense input voltage in full-scale VSENSE = VIN+ – VIN– 0.15 (VS-0.25) V VCM Common-mode input range TA = -40°C to 125°C -0.1 75 V CMR Common-mode rejection VIN+ = 0 to 75 V 80 100 dB VOS Offset voltage, RTI TA = 25°C ±20 ±50 μV TA = -40°C to 125°C ±100 μV dVOS/dT Offset voltage, RTI, versus temperature TA = -40°C to 125°C 0.3 μV/°C PSR Offset voltage, RTI, versus power supply VOUT = 2 V, VIN+ = 18 V, 2.7 V, TA = -40°C to 125°C ±20 μV/V IB Input bias current, VIN- pin TA = -40°C to 125°C ±220 μA Output(VSENSE ≥20mV) G Gain DIA2210 20 V/V DIA2211 50 V/V DIA2212 100 V/V Total output error (1) VSENSE = 120 mV, VS = 16 V, TA = -40°C to 125°C ±0.3 ±1 % CLOAD Maximum capacitive load No sustained oscillation 0.5 nF
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.5 Voltageoutput Output swing to the positive rail (2) VIN- = 11 V, VIN+ = 12 V, TA = -40°C to 125°C VS - 0.12 VS - 0.25 V Output swing to GND (2) VIN- = 0 V, VIN+ = -0.5 V, TA = -40°C to 125°C 6 50 mV Frequencyresponse BW Bandwidth CLOAD = 5 pF DIA2210 440 kHz DIA2211 110 kHz DIA2212 65 kHz Phase margin (2) CLOAD = 500 pF 40 Degrees SR Slew rate 3 V/μs Settling time (1%) VSENSE = 10 mVPP to 100 mVPP, CLOAD = 5 pF DIA2210 25 μsDIA2211 40 DIA2212 100 Noise,RTI Voltage noise density (2) 70 nv/√Hz Note: (1) Total output error includes effects of gain error, VOS and non-linearity error. (2) Specified by design. (3) Specifications subject to change without notice. 6.3. Comparator The values are obtained under these conditions unless otherwise specified: TA = 25°C, VS = 12 V, VCM = 12 V, VSENSE = 100 mV, RL = 10 kΩ to GND, and RPULL-UP = 5.1 kΩ connected from CMPOUT to VS. Symbol Parameter Conditions Min Typ Max Unit Offsetvoltage Threshold TA = 25°C 590 600 620 mV TA = -40°C to 125°C 586 625 mV Hysteresis(1) TA = -40°C to 85°C -8 mV Inputbiascurrent CMPIN pin 1 nA Inputvoltagerange CMPIN pin TA = -40°C to 125°C 0 to (VS - 1.5) V Output(open-drain) Large-signal differential voltage gain(2) CMPOUT = 1 V to 4 V, RL ≥ 15 kΩ connected to 5 V
200 V/mV
ILKG High-level leakage current(3)(4) VID = 0.4 V, VOH = VS 1 nA
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.6 VOL Low-level output voltage(3) VID = -0.6 V, IOL = 2.35 mA 145 320 mV Responsetime tRES Positive response time RPULL-UP = 5.1k to 12 V, CL = 15 pF, CMPIN = 100 mV ~ 605 mV 3.5 μs Negative response time RPULL-UP = 5.1k to 12 V, CL = 15 pF, CMPIN = 605 mV ~ 505 mV 1.5 μs RESET RESET threshold (5) 1.1 V Logic input impedance 2 MΩ Minimum RESET pulse duration 0.5 μs RESET propagation delay 0.51 μs Note: (1) 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; see Figure 6. (2) Specified by design. (3) VID refers to the differential voltage at the comparator inputs. (4) Pulling the open-drain output to the range of 3 V to 40 V is permissible, regardless of VS. (5) The RESET input has an internal 2 MΩ (typical) pulldown. Leaving RESET open results in a low state, with transparent comparator operation. (6) Specifications subject to change without notice.
application information is not part of the specification and is for reference purposes only. with other devices and circuitry to build more complex monitoring functional blocks. capacitors close to the device pins (See Figure 8). Figure 8. DIA221X basic connections
- To minimize the initial shift in gain and effects of tolerance, use the lowest resistor values. Equation (1)
shows the effect on initial gain. Figure 9. Input filter + 3%, which will offer an error gain larger than the normal value. The specified accuracy of the DIA221X is another important factor to consider apart from these tolerances. an additional decoupling capacitor to lessen the impacts of noisy or high-impedance power supplies.
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.11 11.PhysicalDimensions：MSOP8 CommonDimensions (Unitsofmeasure=Millimeter) Symbol Min Nom Max A - - 1.10 A1 0.05 0.10 0.15 A2 0.75 0.85 0.95 A3 0.30 0.35 0.40 b 0.25 - 0.38 b1 0.24 0.30 0.33 c 0.15 - 0.20 c1 0.14 0.15 0.16 D 2.90 3.00 3.10 E 4.75 4.90 5.05 E1 2.90 3.00 3.10 e 0.55 0.65 0.75 L 0.40 0.55 0.70 L1 0.95 REF L2 0.25 BSC R 0.07 - - R1 0.07 - - θ 0° - 8° θ1 9° 12° 15°
Version1.2,Sep2024 www.dioo.com ©2024DIOOMICROCIRCUITSCO.,LTD.12 Disclaimer This specification and information contained herein are provided on an “AS IS” basis and WITH ALL FAULTS. All product specifications, statements, information, and data (collectively, the “Information”) in this datasheet or made available on the website of www.dioo.com are subject to change without notice. The customer is responsible for checking and verifying the extent to which the Information contained in this publication is applicable to his/her application. All Information given herein is believed to be accurate and reliable, but it is presented without guarantee, warranty, or responsibility of any kind, express or implied.