Automotive-grade, high-reliability sensing and control chip solutions
Consumer Electronics

Consumer Electronics & Wearables

Position sensing, motor drive and power management for wearables, personal-care appliances and portable consumer electronics.

Wearable and personal-care consumer electronics impose extreme demands on size, quiescent current and tactile feel: lid and cover detection, knob and hinge angle feedback and vibration-motor drive all rely on small, low-power position and magnetic sensing devices. RJMICRO Hall switches and latches plus 3D position Hall sensors cover these compact mechanisms, while wide-input LDOs provide stable always-on, low-quiescent-current power for portable devices.

Systems and scenarios covered

Wearables and portable devices

  • TWS earbuds and charging cases: lid open/close and in-place detection
  • smart watches and bands: crown / knob angle feedback
  • portable power banks: power management

Personal care and small appliances

  • Electric toothbrushes, shavers and massagers: vibration / rotary motor drive and speed detection
  • multi-position knob sensing

Recommended products

For Consumer Electronics & Wearables, the following RJMICRO devices can be designed in directly — open a device to see full specifications and datasheets.

RJM1013 / RJM1023
RJM1013 / RJM1023

Automotive-grade Vertical / Planar Hall Latch

In Production

3.3 V–24 V wide supply, 40 V load-dump and reverse-polarity protection, symmetric switching points producing a near-50% duty square wave — an ideal choice for motor commutation.

RJSENSE · Smart Sensors SOT23-3L / TO92S-3L
RJM3530 / RJM3531
RJM3530 / RJM3531

IMC / 3D Hall Position Sensor

Sampling

IMC integrated magnetic concentrator plus vertical Hall technology, heterogeneously integrated for high-sensitivity measurement with on-chip algorithms delivering high-accuracy angle output.

RJSENSE · Smart Sensors SOP8
RJM2310 / RJM2311
RJM2310 / RJM2311

Automotive-grade Linear Hall Current Sensor

In Production

Programmable sensitivity from 0.5 mV/G to 11.5 mV/G, 240 kHz bandwidth, 2.2 µs response and ±1% sensitivity error over the full temperature range — built for three-phase traction inverter current sensing.

RJSENSE · Smart Sensors TO-94-4L
RJR710xx-Q1 / -QD
RJR710xx-Q1 / -QD

150 mA, 40 V Ultra-low Quiescent Current Automotive LDO

In Production

3 V–40 V wide input with fixed 3.3 V / 5 V output, 5.5 µA typical quiescent current and 800 nA shutdown current — ideal for always-on systems connected directly to the battery.

RJPOWER · Automotive Power & Driver DFN-8 / SOT-223-4 / SOP8-EP
RJR81xxx / RJR83xxx / RJR85xxx
RJR81xxx / RJR83xxx / RJR85xxx

150 / 300 / 450 mA, 60 V Ultra-low Quiescent Current Automotive LDO

In Design

3 V–60 V wide input with up to 45 V transient tolerance; fixed 1.8/2.5/3.3/5 V and adjustable 1.8 V–15 V outputs covering the current range of 12 V / 48 V systems.

RJPOWER · Automotive Power & Driver SOP8-EP / DFN-8

Other application areas

01

Powertrain

Covering transmission, fuel tank, engine peripherals and traction systems — chip solutions for electronic shif…

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02

Chassis Systems

Covering electric power steering (EPS), braking and suspension systems with angle, speed and position sensing …

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03

Thermal Management

Covering air conditioning, PTC heaters, valves and pumps — a one-stop chip solution for electronic water pumps…

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04

Body Electronics

Covering windows, door handles, power tailgates, sunroofs, seats, electronic wipers and charge-port doors with…

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05

Automotive Lighting & Smart Cockpit

Control and drive for dynamic ambient lighting, smart surfaces, interior and exterior lamps and reading lights…

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06

Industry & Robotics

Current sensing, position feedback and speed measurement for servo drives, robot joints, industrial inverters …

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07

Energy & Power

Current sensing and power management for PV and storage, charging infrastructure, digital power and switching …

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08

E-Two-Wheelers & E-Tricycles

Motor control, phase current sensing, throttle/pedal sensing and complete vehicle power solutions for e-bikes,…

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09

Drones & Mobile Robots

Motor current sampling, angle and position feedback and over-current protection for multi-rotor drones, gimbal…

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10

White Goods & Variable-frequency Motors

Inverter compressor and fan drive, phase current sensing and speed/position feedback for air conditioners, ref…

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11

Smart Home

Motor drive, position sensing and power solutions for smart locks, motorized curtains, robot vacuum actuators …

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Need selection support or samples?

Our application engineers work from your system design and provide magnet selection, field simulation, motor system support and reference designs.