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APS11900LLHALT

Allegro MicroSystems, LLC · Magnetic Sensors · SOT-23W

APS11900LLHALT from Allegro MicroSystems, LLC, in a SOT-23W. 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 VCC power_in Supply voltage; the LH package is specified for operation from 3.0 V to 24 V.
2 GND power_in Ground terminal; for best performance, tie pins 2 and 3 together close to the IC.
3 GND power_in Ground terminal; for best performance, tie pins 2 and 3 together close to the IC.

Key specifications

Parameter Value
Manufacturer Allegro MicroSystems, LLC
Package SOT-23W
Category Sensors
Pins 3

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 (operating, TJ < 165°C, LH and UA packages) VCC 3 24 V Operating, TJ < 165°C LH and UA packages 4
Supply Current, default ICC(L) level ICC(L1) 5 6.9 mA ICC(L1) is the default ICC(L) current 4
Supply Current, ICC(L2) level ICC(L2) 2 5 mA 4
Supply Current, high state ICC(H) 12 17 mA 4
Safe Current State ISAFE 1.8 mA Safe current state; indicates overtemperature or EEPROM error 4
Power-On Time tPO 70 µs VCC ≥ VCC(min), B > BOP(max), B < BRP(min) 4
Supply Zener Clamp Voltage VZ 40 V ICC = ICC(H) + 1 mA, TA = 25°C 4
Reverse Supply Zener Clamp Voltage VRZ -23 V ICC = -1 mA 4
Initial Operate Point BOP(init) 60 80 100 G TA = 25°C 5
Programmable Magnetic Operating Point, switch mode (magnitude) BOP(range) 10 600 G Switch Mode, TA = 25°C; 8 bits 5
Programmable Magnetic Operating Point, latch mode (magnitude) BOP(range) 20 600 G Latch Mode, TA = 25°C; 8 bits 5
Average Magnetic Step Size BOP(STEP) 2 3 4.5 G TA = 25°C 5
Initial Hysteresis BHYS(init) 5 15 30 G TA = 25°C 5
Average Hysteresis Step Size BHYS(STEP) 1.5 3 5 G TA = 25°C 5
Programmable Hysteresis in Switch Mode BHYS(range) 15 70 G TA = 25°C; 5 bits. Switch mode only. 5
Initial Release Point BRP(init) 45 85 G TA = 25°C 5
Initial Operate Point Over Temperature BOP(init)_T 65 113 G TA = -40°C; default programming, ferrite temperature coefficient 5
Initial Operate Point Over Temperature BOP(init)_T 49 80 G TA = 150°C; default programming, ferrite temperature coefficient 5
Initial Release Point Over Temperature BRP(init)_T 51 98 G TA = -40°C; default programming: BOP(init) = 80 G (typ) at 25°C and ferrite temperature coefficient 5
Initial Release Point Over Temperature BRP(init)_T 36 72 G TA = 150°C; default programming: BOP(init) = 80 G (typ) at 25°C and ferrite temperature coefficient 5
Initial Hysteresis Over Temperature BHYS(init)_T 5 30 G TA = -40°C; default programming, ferrite temperature coefficient 5
Supply Voltage (absolute maximum) VCC 40 V 2
Reverse Supply Voltage (absolute rating) VRCC -23 V 2
Maximum Number of EEPROM Write Cycles EEPROMW(max) 100 cycles 2
Maximum Junction Temperature TJ(max) 165 °C 2
Maximum Junction Temperature TJ(max) 175 °C For 500 hours 2
Storage Temperature Tstg -65 170 °C 2
Operating Ambient Temperature (LH package, selection guide) TA -40 150 °C APS11900LLHALT, 3-pin SOT23-W 2
Package Thermal Resistance, LH on 1-layer PCB (JEDEC standard 228) RθJA 228 °C/W Package LH, on 1-layer PCB based on JEDEC standard 7
Package Thermal Resistance, LH on 2-layer PCB RθJA 110 °C/W Package LH, on 2-layer PCB with 0.463 in.2 of copper area each side 7

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 tin and lead (Pb) free with 100% matte-tin-plated leadframes. For situations where a functionally equivalent but factory￾programmed two-wire switch or latch is preferred, refer to the 2

CAD (KiCad official)

  • Symbol: APS11900LLHALT
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23W (KiCad packages3D, STEP)
  • 3D model files: aps11900llhalt-etched.step / aps11900llhalt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aps11900llhalt.step / aps11900llhalt.glb are the bare package body.

Provenance

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

  • Datasheet: Allegro MicroSystems, LLC datasheet (21 pp, sha256 0eb8bb4561998013, retrieved 2026-10-31, 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