AH1892：Omnipolar Hall Effect Switches
| Part Number | Data Sheet | SPICE Model | # Outputs | ActiveHigh orLow | Sensitivity | Operating Voltage (V) | Average Supply Current (µA) | Min OperatingPoint ±Bop (Guass) | Typ OperatingPoint ±Bop(Guass) | Max OperatingPoint ±Bop(Guass) | Min ReleasePoint ±Brp(Guass) | Typ ReleasePoint ±Brp(Guass) | Max ReleasePoint ±Brp(Guass) | Operating Ambient Temperature Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AH1892 | AH1892.pdf | - | 1 | Low | - | 1.6 to 3.6 | 4.3 | ±18 ±43 | ±35 ±60 | ±55 ±80 | ±12 ±35 | ±25 ±50 | ±45 ±70 | -40 to +85 |
Description
The AH1892 is a micropower magnetic range selectable (Bop/Brp) Omnipolar Hall effect switch IC with internal pull up and pull down capability, designed for consumer equipment ranging from portable and battery powered cellular phones and portable PCs to home appliances and industrial applications. To support battery powered equipment and low voltage microcontrollers, the AH1892 can operate over the supply range of 1.6V to 3.6V and uses a hibernating clocking system to minimize the power consumption. The average supply current is only 4.3?A typical at 1.8V. Based on chopper stabilized architecture and ESD of 8kV on supply and output pins, the AH1892 provides reliable and robust solutions over the whole operating range. To minimize PCB space the AH1892 is packaged in the small and low profile U-WLB0707-4 (CSP 0.71mm x 0.71mm typical) or SOT553 leaded package The output is activated with either a north or south pole of sufficient magnetic field strength. The user can select one of two magnetic sensitivity bands via the BSEL pin without the addition of any external components allowing a flexible but small solution. The band select can be hardwired or be changed on the fly via a logic source such as a micro-controller. When the magnetic flux density (B) is larger than operate point (Bop), the output will be turned on (pul°C low) and held until B is lower than release point (Brp).
Application
- Holster detect for cellular phones and Smart phones
- Cover switch in portable PCs - Tablets and Notebooks
- Camcorders and still cameras
- Contact-less switch in consumer battery power products
- Proximity, position, level and dial switch position detection
Ordering Information
- AH1892-CD4-7
- AH1892-Z-7
- AH1892-Z
SOT553
U-WLB0707-4
- AH1892.pdf AH1892
- DZQA6V8AXV5 DZQA6V8AXV5
- DZQA6V8AXV5 DZQA6V8AXV5
