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AH49F

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Description

The AH49F is a small, versatile linear Hall-effect device that is operated by the magnetic field from a permanent magnet or an electromagnet. The output voltage is set by the supply voltage and varies in proportion to the strength of the magnetic field.

The integrated circuitry features low noise output, which makes it unnecessary to use external filtering components. It also includes precision resistors to provide increased temperature stability and accuracy. The operating temperature range of these linear Hall sensors is -40°C to +105°C, appropriate for commercial, consumer, and industrial environments.

The AH49F is available in standard TO-92S, SC59 and U-DFN2020-6 packages.

Feature(s)

Power Consumption of 3.0mA at V_CC = 5V for Energy Efficiency
Single Current Sourcing Output
Linear Voltage Output for Circuit Design Flexibility
Low Noise Output Virtually Eliminates the Need for Filtering
A Stable and Accurate Output
Temperature Range: -40°C to +105°C
Responds to Either Positive or Negative Gauss
The Maximum Instantaneous Supply Voltage Up to 50V
High ESD Rating:
- 6000V (Human Body Model)
- 600V (Machine Model)
Small low profile U-DFN2020-6 and Industry Standard SC59 and TO-92S Packages
Totally Lead-free & Fully RoHS Compliant
Halogen and Antimony Free. “Green” Device

Application(s)

Position Sensing
Liquid Level Sensing
Weight Sensing
Ferrous Metal Detector
Vibration Sensing
Rotary Encoder
Magnetic Code Reading
Motor Control
Current Sensing

Product Specifications

Product Parameters

Output Type	Voltage Output
Operating Voltage (V)	3 to 8 V
Average Supply Current (µA)	3mA
Typical Sensitivity (mV/Gauss)	2.1 mV/Gauss
Output Voltage Span (V)	0.8 to (VCC - 0.8) V
Linearity of Span	0.70%
Null Output Voltage	VCC/2
Magnetic Flux Density Range Gauss (Min)	±500
Magnetic Flux Density Range Gauss (Typ)	±800 Typ
Operating Ambient Temperature (°C)	-40 to 105 °C

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2512	2021-04-16	2021-07-16	Qualified Additional Assembly & Test (A/T) Site
PCN-2490	2020-10-22	2021-01-22	Additional Wafer Source (LiteOn Semiconductor Corp.)