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ACS725LLCTR-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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ACS725LLCTR-10AB-T

Allegro MicroSystems, LLC · Current Sensors · SOIC-8

ACS725LLCTR-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 Primary current-sense terminal, fused internally, that is electrically isolated from the sensor leads (pins 5 through 8) and carries the 1.2 mΩ typical primary conductor resistance.
2 IP+ passive Primary current-sense terminal, fused internally, that is electrically isolated from the sensor leads (pins 5 through 8) and carries the 1.2 mΩ typical primary conductor resistance.
3 IP- passive Primary current-sense terminal, fused internally, that is electrically isolated from the sensor leads (pins 5 through 8) and carries the 1.2 mΩ typical primary conductor resistance.
4 IP- passive Primary current-sense terminal, fused internally, that is electrically isolated from the sensor leads (pins 5 through 8) and carries the 1.2 mΩ typical primary conductor resistance.
5 GND power_in Signal ground terminal for the sensor IC.
6 FILTER passive Terminal for the external capacitor that sets the output bandwidth, forming an RC circuit with the internal 1.8 kΩ filter resistance (typical CF = 1 nF in the typical application).
7 VIOUT output Analog output signal, which must drive a load capacitance of at most 10 nF and a resistive load of at least 4.7 kΩ to GND.
8 VCC power_in Device power supply terminal, specified at 3.0 V to 3.6 V (3.3 V typical) with a supply current of 10 mA typical and 14 mA maximum at VCC = 3.3 V and output open.

Key specifications

Parameter Value
Manufacturer Allegro MicroSystems, LLC
Package SOIC-8
Category 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 10 14 mA VCC = 3.3 V, output open 6
Output Capacitance Load CL 10 nF VIOUT to GND 6
Output Resistive Load RL 4.7 kΩ VIOUT to GND 6
Nonlinearity ELIN -1.5 1.5 % Through full range of IP 6
Current Sensing Range IPR -10 10 A 7
Total Output Error ETOT -2 0.8 2 % IP = IPR(max); TA = 25°C to 150°C 7
Total Output Error ETOT -6 4 6 % IP = IPR(max); TA = -40°C to 25°C 7
Sensitivity Error Esens -1.5 0.8 1.5 % IP = IPR(max); TA = 25°C to 150°C 7
Sensitivity Error Esens -5.5 4 5.5 % IP = IPR(max); TA = -40°C to 25°C 7
Offset Voltage VOE -10 4 10 mV IP = 0 A; TA = 25°C to 150°C 7
Offset Voltage VOE -30 15 30 mV IP = 0 A; TA = -40°C to 25°C 7
Sensitivity Error Lifetime Drift Esens_drift -3 1 3 % 7
Total Output Error Lifetime Drift Etot_drift -3 1 3 % 7
Supply Voltage VCC 6 V 4
Reverse Supply Voltage VRCC -0.1 V 4
Reverse Output Voltage VRIOUT -0.1 V 4
Operating Ambient Temperature Range L TA -40 150 °C 4
Junction Temperature TJ(max) 165 °C 4
Storage Temperature Tstg -65 165 °C 4
Package Thermal Resistance (Junction to Ambient) RθJA 23 °C/W Mounted on Allegro 85-0140 evaluation board with 800 mm2 of 4 oz. copper on each side 4
Package Thermal Resistance (Junction to Lead) RθJL 5 °C/W Mounted on Allegro ASEK725 evaluation board 4
Sensitivity Sens 132 mV/A IPR(min) < IP < IPR(max) 7
Primary Conductor Resistance RIP 1.2 mΩ TA = 25°C 6
Internal Filter Resistance RF(int) 1.8 kΩ 6
Primary Hall Coupling Factor G1 11 G/A TA = 25°C 6
Secondary Hall Coupling Factor G2 2.8 G/A TA = 25°C 6
Hall plate Sensitivity Matching Sensmatch 1 % TA = 25°C 6
Bandwidth BW 120 kHz Small signal -3 dB; CL = 1 nF 6
Rise Time tr 3 μs IP = IP(max), TA = 25°C, CL = 1 nF 6
Propagation Delay tpd 2 μs IP = IP(max), TA = 25°C, CL = 1 nF 6
Response Time tRESPONSE 4 μs IP = IP(max), TA = 25°C, CL = 1 nF 6
Power-On Time tPO 80 μs Output reaches 90% of steady-state level, TA = 25°C, IP = IPR(max) applied 6
Shorted Output to Ground Current Isc(gnd) 3.3 mA TA = 25°C 6
Shorted Output to VCC Current Isc(vcc) 45 mA TA = 25°C 6
Sensitivity Ratiometry Coefficient SENS_RAT_COEF 1.3 VCC = 3.0 to 3.6 V, TA = 25°C 6
Zero Current Output Ratiometry Coefficient QVO_RAT_COEF 1 VCC = 3.0 to 3.6 V, TA = 25°C 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 through the primary copper conduction path (from pins 1 and 1

CAD (KiCad official)

  • Symbol: ACS725LLCTR-10AB-T
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: acs725llctr-10ab-t-etched.step / acs725llctr-10ab-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); acs725llctr-10ab-t.step / acs725llctr-10ab-t.glb are the bare package body.

Provenance

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

  • Datasheet: Allegro MicroSystems, LLC datasheet (20 pp, sha256 40e423e49b0e76e4, retrieved 2026-10-29, 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