Diodes Incorporated AH1911/AH1921 Omnipolar Hall Effect Switches
Diodes Inc. AH1911/AH1921 Omnipolar Hall-Effect Switches include a hibernating clocking system that allows for an average supply current of 1.6μA at 3V. The average supply current makes it compatible with battery-powered consumer products, gas or water meter, smoke detectors, and IoT devices. The wider range of supply voltage (1.6V to 5.5V) extends battery operating time and supports low-voltage-system microcontrollers, which provides flexibility for system design.
Features
- Omnipolar operation (North or South Pole)
- Supply voltage of 1.6V to 5.5V
- Micropower operation
- Chopper stabilized design provides:
- Superior temperature stability
- Minimal switch point drift
- Enhanced immunity to physical stress
- AH1911 is push-pull output and AH1921 is open-drain output
- -40°C to +85°C operating temperature
- High ESD capability of 6kV (Human Body Model)
- Small low profile, SC59 package
- Totally lead-free and fully RoHS compliant
- Halogen and antimony-free “Green” device
Application Examples
Applications
- Smart cover or dock detect for cellular phones and tablet PCs
- Gas or water consumption measurement in remote, battery-operated utility meters
- Medical devices, IoT systems
- Level, proximity and position switches
- E-locks, smoke detectors, appliances
Block diagram
發佈日期: 2018-11-09
| 更新日期: 2022-09-30