HXS41H High Voltage Bipolar Latching Hall Switch
The HXS41H is a high-voltage bipolar latching Hall switch manufactured using high-voltage Bipolar process technology. It integrates a magnetic sensing circuit comprising a voltage regulator, Hall voltage generator, differential amplifier, temperature compensation unit, Schmitt trigger, and an open-collector output stage. This device converts magnetic field strength into a digital voltage signal. It features built-in protection circuits for reliable operation under transient high voltage and offers excellent noise immunity. The HXS41H operates within a temperature range of -40 to 125, with a supply voltage range of 4V to 30V and a maximum load current capability of 25mA. It is available in SOT-23 and TO-92S packages, both compliant with halogen-free standards. Key advantages include reliable temperature performance, high-temperature locking, resistance to environmental stress, optimized design for BLDC motors, built-in protection, temperature compensation, wide operating frequency (0-100KHz), good ESD performance (>4kV), long lifespan, compact size, and ease of installation.
Product Attributes
- Brand: (Huaxin Sheng)
- Origin: (Wuxi)
- Certifications: Halogen-free
Technical Specifications
| Parameter | Condition | Min | Typical | Max | Unit | Notes |
| Supply Voltage (VDD) | | 4.0 | | 30.0 | V | |
| Supply Current (IDD) | VDD=5V, BBop | | 3.0 | 8.0 | mA | |
| Output Saturation Voltage (Vsat) | IOUT = 20 mA, B>Bop | | | 500 | mV | |
| Output Leakage Current (Ioff) | IOFF,B | | 10.0 | A | | |
| Output Rise Time (TR) | R1=1k,C2=20pF | | 1.5 | | S | |
| Output Fall Time (TF) | R1=1k,C2=20pF | | 1.5 | | S | |
| Switching Frequency (Fbw) | | | | 100 | kHz | |
| Operating Temperature (TA) | | -40 | | 125 | | |
| Storage Temperature (TS) | | -55 | | 165 | | |
| ESD Rating | HMB | | 4000 | | V | |
| Opening Point (BOP) | UA(SO) | 10(-110) | | 110(-10) | Gauss | |
| Closing Point (BRP) | UA(SO) | -110(10) | | -10(110) | Gauss | |
| Hysteresis (BHYS) | | | 100 | | Gauss | |
Typical Applications
- Brushless DC Motors/Fans/Pumps
- Electric Vehicle Motors/Air Conditioner Motors/Washing Machine Motors/Other Home Appliance Motors
- Speed Detection
- Contactless Switches
- Magnetic Encoding
- Counting Measurement
Pin Definitions
SOT-23 (Top View)
| Pin | Name | Description |
| 1 | VDD | Power Supply Input |
| 2 | Output | Output |
| 3 | GND | Ground |
TO-92S (Top View)
| Pin | Name | Description |
| 1 | VDD | Power Supply Input |
| 2 | GND | Ground |
| 3 | Output | Output |
Indication Direction
The HXS41H is sensitive to magnetic fields perpendicular to the chip surface, entering from the bottom and exiting from the top, or vice versa. For the SOT-23 package, with the silk screen side as the front, a sufficient N-pole magnetic field results in a low output level, while an S-pole magnetic field results in a high output level. For the TO-92S package, an S-pole magnetic field results in a low output level, while an N-pole magnetic field results in a high output level.
Ordering Information
| Product Model | Package | Min. Packaging | Operating Temp. | Marking |
| HXS41HKSO | SO (SOT-23) | 3k | K (-40125) | S41Hx |
| HXS41HKUA | UA (TO-92S) | 1k | K (-40125) | S41Hxxx |
