APS12450: Three-Wire Hall-Effect Latch with Advanced Diagnostics

Description

The APS12450 is a three-wire planar Hall-effect sensor integrated circuit (IC) developed in accordance with ISO 26262 (pending assessment). It includes internal diagnostics and a fault state that support functional safety. The enhanced three-wire interface provides interconnect open/short diagnostics and a fault state to communicate diagnostic information while maintaining compatibility with legacy three-wire systems. The continuous background diagnostics are transparent to the host system and results in a reduced fault tolerant time.

The APS12450 product options include magnetic switchpoints, temperature coefficient, and output polarity. The response can be matched to SmCo, NdFeB, or low-cost ferrite magnets. For situations where a functionally equivalent three-wire switch device is preferred, refer to the APS11450.

APS12450sensors are engineered to operate in the harshest environments with minimal external components. They are qualified beyond the requirements of AEC-Q100 Grade 0 and will survive extended operation at 175°C junction temperature.

These monolithic ICs include on-chip reverse-battery protection, overvoltage protection (e.g., 40 V load dump), ESD protection, overtemperature detection, and an internal voltage regulator for operation directly from an automotive battery bus. These integrated features reduce the end-product bill-of-materials (BOM) and assembly cost.

Package options include industry-standard surface-mount SOT (LH) and through-hole SIP (UA) packages. Both packages are RoHS-compliant and lead (Pb) free with 100% matte-tin-plated leadframes.

ASIL Logo

APS12450was developed in accordance with ISO 26262:2011 as a hardware safety element out of context with ASIL B capability (pending assessment) for use in automotive safety-related systems when integrated and used in the manner prescribed in the applicable safety manual and datasheet.

Top Features

  • 功能安全
    • Developed in accordance with ISO 26262:2011 (pending assessment)
    • Integrated background diagnostics for:
      • Signal path
      • Regulator
      • Hall plate and bias
      • Overtemperature detection
      • Nonvolatile memory
    • Defined fault state
  • Multiple product options
    • 磁极性,开关点和滞后
    • Temperature coefficient
    • Output polarity
  • Reduces module bill-of-materials (BOM) and assembly cost
    • ASIL B sensor can replace redundant sensors
    • Integrated overvoltage clamp and reverse-battery diode
  • Automotive-grade ruggedness and fault tolerance
    • Extended AEC-Q100 Grade 0 qualification
    • Operation to 175°C junction temperature
    • 3至30 V工作电压范围
    • ±8千伏HBM防静电
    • Overtemperature indication

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
APS12450LLHALT-0SLA 3-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
APS12450LLHALT-1SLA 3-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep
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Distributor Stock
APS12450LLHALT-3SLA 3-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep
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APS12450LLHALX-0SLA 3-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep
Check
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APS12450LLHALX-1SLA 3-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
APS12450LUAA-0SLA 3-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
APS12450LUAA-1SLA 3-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
APS12450LUAA-3SLA 3-lead SIP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

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