AS1690S
General Description
Using low power CMOS process, the AS1690S is
designed for low power, high performance latch
detection hall-effect application, such as automotive,
industrial, electric tools, home appliances, brushless
DC motor etc, contactless switch, solid state switch
and lid close sensor etc battery operation. The hall IC
integrated an on-chip hall voltage generator for
magnetic sensing, a comparator that amplifiers the hall
voltage, a Chopper amplifier, a Schmitt trigger to
provide switching hysteresis for noise rejection, and a
complementary output. The total power consumption of AS1690S is
typically less than 2.0mA at 3.6V power supply. AS1690S is designed to respond to alternating North
and South poles. When the magnetic flux density (B) is
larger than operate point (BOP), the output will be
turned on (low), the output is held until the magnetic
flux density (B) is lower than release point (BRP), then
turn off (high). The device is available in DFN1014-4L, SIP-3L
and SOT23-3L Package and is rated over the -40°C to
125°C. The all packages are RoHS and Green
compliant.
designed for low power, high performance latch
detection hall-effect application, such as automotive,
industrial, electric tools, home appliances, brushless
DC motor etc, contactless switch, solid state switch
and lid close sensor etc battery operation. The hall IC
integrated an on-chip hall voltage generator for
magnetic sensing, a comparator that amplifiers the hall
voltage, a Chopper amplifier, a Schmitt trigger to
provide switching hysteresis for noise rejection, and a
complementary output. The total power consumption of AS1690S is
typically less than 2.0mA at 3.6V power supply. AS1690S is designed to respond to alternating North
and South poles. When the magnetic flux density (B) is
larger than operate point (BOP), the output will be
turned on (low), the output is held until the magnetic
flux density (B) is lower than release point (BRP), then
turn off (high). The device is available in DFN1014-4L, SIP-3L
and SOT23-3L Package and is rated over the -40°C to
125°C. The all packages are RoHS and Green
compliant.
Features
Input Voltage Range : 2.2V to 5.5V
Bipolar Latch Operation, easy to use as output
Chopper stabilization amplifier stage
Magnetic Sensitivity (typical)
BOP= ±18Gauss, BRP=±18Gauss
Good RF noise immunity
Integrated 10Kohms pull-up resistor
Small Solution Size
RoHS Compliant
DFN1014-4L, SIP-3L and SOT23-3L
Packages
-40℃ to +125 ℃ Temperature Range
Applications
Cover switch in Notebook, PC/PAD
Contact-less switch in consumer products
Solid State Switch
Handheld Wireless Handset Awake Switch
Lid close sensor for battery-powered devise
Magnet proximity sensor for reed switch
replacement in low duty cycle applications
DV, DSC, and White Goods
