AH1899S Series

Ultra Low Voltage High-Sensitivity Micropower Omnipolar Hall-Effect Switch

Catalog

Ultra Low Voltage High-Sensitivity Micropower Omnipolar Hall-Effect Switch

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Output Type	Technology	Current - Supply (Max) [Max]	Test Condition	Sensing Range	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Mounting Type	Polarization	Function
Diodes Inc AH1899S-FS4-7	1.1 V	2 V	X2-DFN1010-4 (Type B)	Analog Voltage	Hall Effect	11.5 µA	25 °C	3 mT 4 mT	85 °C	-40 °C	4-XDFN Exposed Pad	Surface Mount	North Pole South Pole	Omnipolar Switch

Catalog

Ultra Low Voltage High-Sensitivity Micropower Omnipolar Hall-Effect Switch

Key Features

• Omnipolar Operation (North or South Pole)

• Supply Voltage of 1.1V to 2.0V

• Micropower Operation

• Chopper Stabilized Design Provides:Superior Temperature StabilityMinimal Switch Point DriftEnhanced Immunity to Physical Stress

• Superior Temperature Stability

• Minimal Switch Point Drift

• Enhanced Immunity to Physical Stress

• No External Pull-Up Resistors Required

• Good RF Noise Immunity

-40°C to +85°C Operating Temperature

• Small Low-Profile X2-DFN1010-4 (Type B) Package

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. "Green" Device (Note 3)

• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), pleasecontact usor your local Diodes representative.https://www.diodes.com/quality/product-definitions/

Description

The AH1899S is a high-sensitivity micropower, Omnipolar Hall effect switch IC with internal pull-up and pull-down capability. Designed for portable and battery-powered equipment, such as cellular phones and portable PCs, the average supply current is only 5.1µA at 1.2V and 5.8µA at 1.8V. To support portable equipment, the AH1899S can operate over the supply range of 1.1V to 2.0V and uses a hibernating clocking system to minimize the power consumption. To minimize PCB space, the AH1899S is available in a small low profile X2- DFN1010-4 (Type B) package.