Low Profile X1 DFN1216 4 Package DIODES AH1895-Z-7 Omnipolar Hall Effect Switch for Portable Devices
Product Overview
The AH1895 is a medium sensitivity, micropower Omnipolar Hall-effect switch IC designed for portable and battery-powered devices. It features internal pull-up and pull-down capabilities, a wide supply voltage range (1.6V to 3.6V), and a hibernating clocking system for minimal power consumption (average supply current of 4.3uA at 1.85V). The device is activated by either a north or south magnetic pole and is available in small, low-profile X1-DFN1216-4 and SOT553 packages. Its chopper-stabilized design ensures superior temperature stability, minimal switch point drift, and enhanced immunity to physical stress. The AH1895 is suitable for various applications including open/close detection, cover/display switches, and contactless position sensing in consumer electronics and industrial equipment.
Product Attributes
- Brand: Diodes Incorporated
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Electrical Characteristics | |||||
| Output Low Voltage (VOL) | IOUT = 1mA | 0.1 | 0.2 | V | |
| Output High Voltage (VOH) | IOUT = -1mA | VDD - 0.2 | VDD - 0.1 | V | |
| Output Leakage Current (Ioff) | VOUT = 3.6V, Output off | < 0.1 | 1 | A | |
| Supply Current (IDD(awake)) | TA = +25C, VDD = 3V | 2.1 | mA | ||
| Supply Current (IDD(sleep)) | TA = +25C, VDD = 3V | 2.5 | mA | ||
| Average Supply Current (IDD(avg)) | TA = +25C, VDD = 1.85V | 4.3 | 8 | A | |
| Average Supply Current (IDD(avg)) | TA = +25C, VDD = 3.6V | 7.2 | 13 | A | |
| Awake Time (Tawake) | Note 8 | 50 | 100 | s | |
| Period (Tperiod) | Note 8 | 50 | 100 | ms | |
| D.C. Duty Cycle | Note 8 | 0.1 | % | ||
| Magnetic Characteristics | |||||
| Operation Point (BOPS) (South pole) | Note 9 & 10 | 40 | 60 | 80 | Gauss |
| Operation Point (BOPN) (North pole) | Note 9 & 10 | -80 | -60 | -40 | Gauss |
| Release Point (BRPS) (South pole) | Note 9 & 10 | 35 | 50 | 65 | Gauss |
| Release Point (BRPN) (North pole) | Note 9 & 10 | -65 | -50 | -35 | Gauss |
| Hysteresis (BHY) | Note 11 | 5 | 10 | Gauss | |
| Absolute Maximum Ratings | |||||
| Supply Voltage (VDD) | Note 7 | 6 | V | ||
| Reverse Supply Voltage (VDD_REV) | -0.3 | V | |||
| Output Current (IOUTPUT) | Source and sink | 3.5 | mA | ||
| Package Power Dissipation (PD) | X1-DFN1216-4 | 230 | mW | ||
| Package Power Dissipation (PD) | SOT553 | 230 | mW | ||
| Storage Temperature Range (Ts) | -65 | 150 | C | ||
| Maximum Junction Temperature (TJ) | 150 | C | |||
| ESD Capability (HBM) | Human Body Model | 8 | kV | ||
| Recommended Operating Conditions | |||||
| Supply Voltage (VDD) | Operating | 1.6 | 3.6 | V | |
| Operating Temperature Range (TA) | Operating | -40 | 85 | C | |
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