Changsha Purple Horn E-Commerce Co., Ltd.
| Voltage - Supply | 1.6V~3.6V |
| Description | WLB-4(0.8x0.8) Switches (Solid State) RoHS |
| Mfr. Part # | AH1898-CA4-7 |
| Package | WLB-4(0.8x0.8) |
| Model Number | AH1898-CA4-7 |
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Product Specification
| Voltage - Supply | 1.6V~3.6V | Description | WLB-4(0.8x0.8) Switches (Solid State) RoHS |
| Mfr. Part # | AH1898-CA4-7 | Package | WLB-4(0.8x0.8) |
| Model Number | AH1898-CA4-7 |
The AH1898 is a micropower, omnipolar Hall-effect switch IC designed for portable and battery-powered consumer electronics. It features programmable magnetic sensitivity bands, internal pull-up/pull-down capability, and operates over a wide supply voltage range (1.6V to 3.6V) with minimal power consumption (4.3A typical average supply current). The device offers an 8kV ESD rating and is available in a miniature CSP package. It activates with either a north or south magnetic pole and allows for flexible sensitivity selection via the BSEL pin.
| Parameter | Conditions | Min | Typ | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Electrical Characteristics | ||||||
| Output Low Voltage (ON) | IOUT = 1mA | 0.1 | 0.2 | V | ||
| Output High Voltage (OFF) | IOUT = -1mA | VDD - 0.2 | VDD - 0.1 | V | ||
| Band Select Voltage for Low Band | 0 | 0.5 | V | |||
| Band Select Voltage for High Band | 1.4 | 3.6 | V | |||
| BSEL Pin Internal Pull-Up Resistor | (Note 7) | 50 | k | Only active during AWAKE time. | ||
| Supply Current During Awake Period | 2.1 | mA | ||||
| Supply Current During Sleep Period | 2.5 | A | ||||
| Average Supply Current | VDD = 1.8V | 4.3 | 8 | A | ||
| Average Supply Current | VDD = 3.6V | 7.2 | 13 | A | ||
| Awake Time | (Note 8) | 50 | 100 | s | ||
| Period | (Note 8) | 50 | 100 | ms | ||
| D.C. Duty Cycle | 0.1 | % | ||||
| Band Transition Time | (Note 9) | 100.0 | 200.1 | ms | Varies dependent on BSEL activation timing. | |
| Magnetic Characteristics | ||||||
| Low Band - Operation Point (South Pole) | Low Band | 18 | 35 | 55 | Gauss | 1mT = 10 Gauss |
| Low Band - Operation Point (North Pole) | Low Band | -55 | -35 | -18 | Gauss | |
| Low Band - Release Point (South Pole) | Low Band | 12 | 25 | 45 | Gauss | |
| Low Band - Release Point (North Pole) | Low Band | -45 | -25 | -12 | Gauss | |
| High Band - Operation Point (South Pole) | High Band | 43 | 60 | 80 | Gauss | |
| High Band - Operation Point (North Pole) | High Band | -80 | -60 | -43 | Gauss | |
| High Band - Release Point (South Pole) | High Band | 35 | 50 | 70 | Gauss | |
| High Band - Release Point (North Pole) | High Band | -70 | -50 | -35 | Gauss | |
| Hysteresis | |Bopx|-|Brpx| | 10 | Gauss | |||
| Absolute Maximum Ratings | ||||||
| Supply Voltage | (Note 6) | 6 | V | Transient stress rating. | ||
| Reverse Supply Voltage | -0.3 | V | ||||
| Output Current (Source and Sink) | 2.5 | mA | ||||
| Package Power Dissipation | U-WLB0808-4 | 160 | mW | |||
| Storage Temperature Range | -65 | 150 | C | |||
| Maximum Junction Temperature | 150 | C | ||||
| ESD Capability (HBM) | VDD, GND and OUT Pins | 8 | kV | Human Body Model | ||
| ESD Capability (HBM) | BSEL Pin | 6 | kV | Human Body Model | ||
| Recommended Operating Conditions | ||||||
| Supply Voltage | Operating | 1.6 | 3.6 | V | ||
| Operating Temperature Range | Operating | -40 | 85 | C | ||
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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