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ACS724LLCTR-30AB-T

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Allegro MicroSystems LLC Current Sensors, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ACS724LLCTR-30AB-T

Allegro MicroSystems LLC · Current Sensors · SOIC-8

ACS724LLCTR-30AB-T from Allegro MicroSystems LLC, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IP+ passive Terminal for the current being sensed, fused internally and forming part of the primary conductor path that runs from pins 1 and 2 to pins 3 and 4.
2 IP+ passive Terminal for the current being sensed, fused internally and forming part of the primary conductor path that runs from pins 1 and 2 to pins 3 and 4.
3 IP- passive Terminal for the current being sensed, fused internally and forming part of the primary conductor path that runs from pins 1 and 2 to pins 3 and 4.
4 IP- passive Terminal for the current being sensed, fused internally and forming part of the primary conductor path that runs from pins 1 and 2 to pins 3 and 4.
5 GND power_in Signal ground terminal for the sensor leads.
6 FILTER passive Terminal for an external capacitor that sets the output bandwidth together with the internal filter resistance RF(int) of 1.8 kΩ typical.
7 VIOUT output Analog output signal that changes proportionally with the bidirectional primary sensed current, with a maximum output capacitance load of 10 nF and minimum resistive load of 4.7 kΩ to GND.
8 VCC power_in Device power supply terminal, specified at 4.5 to 5.5 V.

Key specifications

Parameter Value
Manufacturer Allegro MicroSystems LLC
Package SOIC-8
Category Magnetic Sensors
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage VCC 4.5 5.5 V 5
Supply Current ICC 10 14 mA VCC = 5 V, output open 5
Output Capacitance Load CL 10 nF VIOUT to GND 5
Output Resistive Load RL 4.7 kΩ VIOUT to GND 5
Nonlinearity ELIN -1.5 1.5 % Through full range of IP 5
Hall Plate Sensitivity Matching Sensmatch -1 1 % TA = 25°C 5
Current Sensing Range IPR -30 30 A 13
Total Output Error (25°C to 150°C) ETOT -2 0.8 2 % IP = IPR(max), TA = 25°C to 150°C 13
Total Output Error (-40°C to 25°C) ETOT -6 4 6 % IP = IPR(max), TA = -40°C to 25°C 13
Sensitivity Error (25°C to 150°C) Esens -1.5 0.8 1.5 % IP = IPR(max), TA = 25°C to 150°C 13
Sensitivity Error (-40°C to 25°C) Esens -5.5 4 5.5 % IP = IPR(max), TA = -40°C to 25°C 13
Voltage Offset Error (25°C to 150°C) VOE -10 6 10 mV IP = 0 A, TA = 25°C to 150°C 13
Voltage Offset Error (-40°C to 25°C) VOE -30 6 30 mV IP = 0 A, TA = -40°C to 25°C 13
Sensitivity Error Lifetime Drift Esens_drift -3 1 3 % 13
Total Output Error Lifetime Drift Etot_drift -3 1 3 % 13
Supply Voltage (absolute maximum) VCC 6 V 3
Reverse Supply Voltage VRCC -0.1 V 3
Reverse Output Voltage VRIOUT -0.1 V 3
Maximum Continuous Current ICMAX 55 A TA = 25°C 3
Operating Ambient Temperature (Range L) TA -40 150 °C 3
Junction Temperature TJ(max) 165 °C 3
Storage Temperature Tstg -65 165 °C 3
Sensitivity Sens 66 mV/A IPR(min) < IP < IPR(max) 13
Primary Conductor Resistance RIP 1.2 mΩ TA = 25°C 5
Primary Conductor Inductance LIP 2 nH TA = 25°C 5
Internal Filter Resistance RF(int) 1.8 kΩ 5
Common Mode Field Rejection Ratio CMFRR 40 dB Uniform external magnetic field 5
Primary Hall Coupling Factor G1 11 G/A TA = 25°C 5
Secondary Hall Coupling Factor G2 2.8 G/A TA = 25°C 5
Rise Time tr 3 μs TA = 25°C, CL = 1 nF 5
Propagation Delay tpd 2 μs TA = 25°C, CL = 1 nF 5
Response Time tRESPONSE 4 μs TA = 25°C, CL = 1 nF 5
Output Slew Rate SR 0.53 V/μs TA = 25°C, CL = 1 nF 5
Bandwidth BW 120 kHz Small signal -3 dB; CL = 1 nF 5
Noise Density IND 150 µA(rms)/√Hz Input-referenced; TA = 25°C, CL = 1 nF 5
Noise IN 20 mA(rms) CF = 4.7 nF, CL = 1 nF, BW = 18 kHz, TA = 25°C 5
Sensitivity Ratiometry Coefficient SENS_RAT_COEF 1.3 VCC = 4.5 to 5.5 V, TA = 25°C 5
Zero-Current Output Ratiometry Coefficient QVO_RAT_COEF 1 VCC = 4.5 to 5.5 V, TA = 25°C 5
Saturation Voltage (low) VOL 0.3 V RL = 4.7 kΩ 5
Power-On Time tPO 80 μs TA = 25°C 5
Shorted Output-to-Ground Current ISC(GND) 3.3 mA TA = 25°C 5
Shorted Output-to-VCC Current ISC(VCC) 45 mA TA = 25°C 5
Package Thermal Resistance (Junction to Ambient) RθJA 23 °C/W Allegro 85-0740 evaluation board, 1500 mm² 4 oz copper 3
Package Thermal Resistance (Junction to Lead) RθJL 5 °C/W Allegro ASEK724 evaluation board 3

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper through the primary copper conduction path (from pins 1 and 1

CAD (KiCad official)

  • Symbol: ACS724LLCTR-30AB-T
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: acs724llctr-30ab-t-etched.step / acs724llctr-30ab-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); acs724llctr-30ab-t.step / acs724llctr-30ab-t.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Allegro MicroSystems LLC datasheet (24 pp, sha256 b9bcdc03fa944d78, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF