Changsha Purple Horn E-Commerce Co., Ltd.
| Operating Current | 1.6uA |
| Operation Points | ±9mT |
| Release Points | ±6.7mT |
| Operating Temperature | -40℃~+85℃ |
| Voltage - Supply | 1.6V~5.5V |
| Description | Digital Switch Omnipolar Open Drain Hall Effect SC-59 |
| Mfr. Part # | AH1921-W-7 |
| Package | SC-59 |
| Model Number | AH1921-W-7 |
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Product Specification
| Operating Current | 1.6uA | Operation Points | ±9mT |
| Release Points | ±6.7mT | Operating Temperature | -40℃~+85℃ |
| Voltage - Supply | 1.6V~5.5V | Description | Digital Switch Omnipolar Open Drain Hall Effect SC-59 |
| Mfr. Part # | AH1921-W-7 | Package | SC-59 |
| Model Number | AH1921-W-7 |
The AH1911/AH1921 is an ultra-low power digital Omnipolar Hall Effect switch IC designed for battery-powered consumer products, utility meters, smoke detectors, and IoT devices. Its hibernating clocking system achieves an average supply current of only 1.6A at 3V. The wide supply voltage range (1.6V to 5.5V) enhances battery life and supports low-voltage microcontrollers. Featuring a chopper-stabilized design for superior stability and a high ESD level up to 6kV for system robustness, this device offers flexibility in system design. The AH1911 provides a push-pull output, while the AH1921 offers an open-drain output. Both can be activated by either the North or South pole of a magnet, with the output switching on when magnetic flux density exceeds the operate point (BOP) and holding until it drops below the release point (BRP). The device is available in an industry-standard SC59 package.
| Parameter | AH1911 (Push-Pull) | AH1921 (Open Drain) | Conditions | Min | Typ | Max | Unit |
| Supply Voltage (VDD) | 1.6 to 5.5 V | ||||||
| Operating Temperature | -40 to +85 C | ||||||
| Output Low Voltage (VOL) | - | - | IOUT = 0.1mA | - | 0.1 | 0.2 | V |
| Output High Voltage (VOH) | VDD-0.2 | - | IOUT = -0.1mA | - | VDD-0.1 | - | V |
| Output Leakage Current (IOFF) | - | - | VOUT = 5.5V, Output off | - | < 0.1 | 1 | A |
| Supply Current (IDD(AWAKE)) | - | TA = +25C, VDD = 3V | - | 1 | 1.5 | mA | |
| Supply Current (IDD(AWAKE)) | - | TA = -40 to +85C, VDD =1.6V to 5.5V | - | 1 | 3 | mA | |
| Supply Current (IDD(SLEEP)) | - | TA = +25C, VDD = 3V | - | 0.6 | 1 | A | |
| Supply Current (IDD(SLEEP)) | - | TA = -40 to +85C, VDD =1.6V to 5.5V | - | 0.6 | 3 | A | |
| Average Supply Current (IDD(AVG)) | - | TA = +25C, VDD = 3V | - | 1.6 | 3 | A | |
| Average Supply Current (IDD(AVG)) | - | TA = -40 to +85C, VDD =1.6V to 5.5V | - | 1.6 | 9 | A | |
| Awake Time (tAWAKE) | 30 to 80 s | ||||||
| Period (tPERIOD) | 30 to 80 ms | ||||||
| Duty Cycle (D.C.) | 0.1 % | ||||||
| Operation Point (BOPS) (South Pole) | 30 to 90 Gauss | ||||||
| Operation Point (BOPN) (North Pole) | -90 to -30 Gauss | ||||||
| Release Point (BRPS) (South Pole) | 22 to 67 Gauss | ||||||
| Release Point (BRPN) (North Pole) | -67 to -22 Gauss | ||||||
| Hysteresis (BHY) | 15 Gauss | ||||||
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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