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ACS722LLCTR-10AB-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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ACS722LLCTR-10AB-T

Allegro MicroSystems LLC · Current Sensors · SOIC-8

ACS722LLCTR-10AB-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; primary current flows from pins 1 and 2 to pins 3 and 4 to produce a positive output slope.
2 IP+ passive Terminal for the current being sensed, fused internally; primary current flows from pins 1 and 2 to pins 3 and 4 to produce a positive output slope.
3 IP- passive Terminal for the current being sensed, fused internally; primary current exits through pins 3 and 4 when current flows from pins 1 and 2.
4 IP- passive Terminal for the current being sensed, fused internally; primary current exits through pins 3 and 4 when current flows from pins 1 and 2.
5 GND power_in Signal ground terminal for the sensor IC.
6 BW_SEL input Terminal for selecting the 20 kHz or 80 kHz bandwidth; grounding it selects the 80 kHz high-bandwidth mode and tying it to VCC selects 20 kHz low-noise mode.
7 VIOUT output Analog output signal, proportional to the bidirectional or unidirectional primary sensed current.
8 VCC power_in Device power supply terminal; the datasheet specifies a 3 V minimum, 3.3 V typical and 3.6 V maximum supply.

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 3 3.3 3.6 V 6
Supply Current ICC 9 12 mA VCC within VCC(min) and VCC(max) 6
Output Capacitance Load CL 10 nF VIOUT to GND 6
Output Resistive Load RL 4.7 kΩ VIOUT to GND 6
Saturation Voltage (low) VOL 0.33 V RL = 4.7 kΩ, TA = 25°C 6
Nonlinearity ELIN -1 1 % Through full range of IP 6
Current Sensing Range IPR -10 10 A Bidirectional 8
Sensitivity Error Esens -1.5 1.5 % TA = 25°C to 150°C; measured at IP = IPR(max) 8
Sensitivity Error Esens -2 2 % TA = -40°C to 25°C; measured at IP = IPR(max) 8
Offset Voltage VOE -10 10 mV IP = 0 A; TA = 25°C to 150°C 8
Offset Voltage VOE -15 15 mV IP = 0 A; TA = -40°C to 25°C 8
Total Output Error ETOT -2 2 % IP = IPR(max), TA = 25°C to 150°C 8
Total Output Error ETOT -3 3 % IP = IPR(max), TA = -40°C to 25°C 8
Sensitivity Error Lifetime Drift Esens_drift -2 2 % 8
Total Output Error Lifetime Drift Etot_drift -2 2 % 8
Supply Voltage VCC 6 V 3
Reverse Supply Voltage VRCC -0.1 V 3
Output Voltage VIOUT 25 V 3
Reverse Output Voltage VRIOUT -0.1 V 3
Maximum Continuous Current ICMAX 65 A TA = 25°C 3
Operating Ambient Temperature (Range L) TA -40 150 °C Range L 3
Junction Temperature TJ(max) 165 °C 3
Storage Temperature Tstg -65 165 °C 3
Package Thermal Resistance (Junction to Ambient) RθJA 23 ºC/W Mounted on Allegro 85-0593 evaluation board with 400 mm2 of 4 oz. copper on each side 3
Package Thermal Resistance (Junction to Lead) RθJL 5 ºC/W Mounted on the Allegro ASEK 722 evaluation board 3
Sensitivity Sens 132 mV/A IPR(min) < IP < IPR(max) 8
Primary Conductor Resistance RIP 0.65 mΩ TA = 25°C 6
Magnetic Coupling Factor CF 10 G/A 6
Internal Bandwidth BWi 80 kHz Small signal -3 dB; CL = 1 nF, BW_SEL tied to GND 6
Internal Bandwidth BWi 20 kHz Small signal -3 dB; CL = 1 nF, BW_SEL tied to VCC 6
Rise Time tr 4 μs IP = IP(max), TA = 25°C, CL = 1 nF, BW_SEL tied to GND 6
Rise Time tr 17.5 μs IP = IP(max), TA = 25°C, CL = 1 nF, BW_SEL tied to VCC 6
Propagation Delay tpd 1 μs IP = IP(max), TA = 25°C, CL = 1 nF, BW_SEL tied to GND 6
Propagation Delay tpd 5 μs IP = IP(max), TA = 25°C, CL = 1 nF, BW_SEL tied to VCC 6
Response Time tRESPONSE 5 μs IP = IP(max), TA = 25°C, CL = 1 nF, BW_SEL tied to GND 6
Response Time tRESPONSE 22.5 μs IP = IP(max), TA = 25°C, CL = 1 nF, BW_SEL tied to VCC 6
Noise Density IND 150 µA(rms)/ √Hz Input referenced noise density; TA = 25°C, CL = 1 nF 6
Noise (BWi = 80 kHz) IN 42 mA(rms) Input referenced noise; BWi = 80 kHz, TA = 25°C, CL = 1 nF 6
Noise (BWi = 20 kHz) IN 21 mA(rms) Input referenced noise; BWi = 20 kHz, TA = 25°C, CL = 1 nF 6
Power-On Time tPO 64 μs Output reaches 90% of steady-state level, TA = 25°C, IP = IPR(max) applied 6

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 primary copper conduction path (from pins 1 and 2, to pins 3 1

CAD (KiCad official)

  • Symbol: ACS722LLCTR-10AB-T
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: acs722llctr-10ab-t-etched.step / acs722llctr-10ab-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); acs722llctr-10ab-t.step / acs722llctr-10ab-t.glb are the bare package body.

Provenance

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

  • Datasheet: Allegro MicroSystems LLC datasheet (23 pp, sha256 a3574a09b92a080b, 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