English
Chinese
Dongguan Hallsen Technology Co., Ltd
Hall switches are widely used inside pedals. When the driver steps on the pedal, the pedal position changes, and the Hall switch can sense this change and convert it into an electrical signal. By analyzing these signals, the vehicle's electronic control unit can accurately determine the throttle opening and adjust the engine's power output accordingly.
Recommended model: HSHS4915 low-power linear Hall magnetic control IC component
HS4915 is a non-polar Hall switch based on mixed-signal CMOS technology. This IC uses advanced chopper stabilization technology to provide accurate and stable magnetic switch points.
In terms of circuit design, HS4915 provides an embedded controlled clock mechanism to provide a clock source for the Hall device and analog signal processing circuit. At the same time, this controlled clock mechanism can send a control signal to make the circuit with high current consumption enter the "sleep" mode periodically; through this mechanism, the chip is periodically "woken up" and detects the strength of the magnetic field passing through the Hall device according to the predetermined magnetic field strength threshold. If the magnetic flux density is higher than the "operating point" threshold or lower than the "release point" threshold, the open-drain output transistor is driven and latched into the corresponding state. During the "sleep" cycle, the output transistor is locked in its previous state. In battery-powered applications, this design provides the best support for extending the working life.
The output transistor of HS4915 is locked in the on state when there is a certain strong south pole or north pole magnetic field facing the package marking side, and is locked in the off state when there is no magnetic field.
HS4915 has higher magnetic field sensing sensitivity than HS213, and can be used in security systems and occasions with small sensing magnets.
