SENSOR SWITCH. AH180 Datasheet

AH180 SWITCH. Datasheet pdf. Equivalent

Part AH180
Description MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH
Feature OBSOLETE – PART DISCONTINUED PART OBSOLETE USE AH1808 AH180 MICROPOWER OMNIPOLOAR HALL-EFFECT SEN.
Manufacture Diodes Incorporated
Datasheet
Download AH180 Datasheet



AH180
PART OBSOLETE
USE AH1808
AH180
MICROPOWER OMNIPOLOAR HALL-EFFECT SENSOR SWITCH
Description
AH180 is a micro-power Omnipolar Hall-Effect switch designed for
portable and battery powered equipment such cellular phones, PDAs
and portable PCs. Based on two Hall-Effect plates and a chopper
stabilized architecture the AH180 provides a reliable solution over the
whole operating range. To support portable and battery powered
equipment the design has been optimized to operate over the supply
range of 2.5V to 5.5V and consumes only 24uW with a supply of 3V.
The single open-drain output switches on with either a north or south
pole of sufficient strength.
When the magnetic flux density (B) is larger than operate point
(Bop), output is switched on (Output pin is pulled low). The output is
turned off when B becomes lower than the release point (Brp). The
output will remain off when there is no magnetic field.
The AH180 is available in SIP-3L, SC59, DFN2020-3, and DFN2020-
6 packages.
Pin Assignments
(Top View)
(SIP-3L)
3. Output
2. GND
1. Vdd
(Top View)
GND 2.
SC59
3. Output
1 . Vdd
(Top View)
6. NC 5. GND 4. NC
( Top View )
3. GND
Features
• Omnipolar (north or south pole) operation
• Micropower operation
• Single open drain output
• 2.5V to 5.5V operating voltage
• Chopper stabilized design provides
• Superior temperature stability
• Minimal switch-point drift
• Enhanced immunity to stress
• Good RF noise immunity
• -40°C to +85°C operating temperature
• ESD (HBM) 5KV for DFN2020-6, DFN2020-3
6KV for SIP-3L and SC59
• SIP-3L, SC59 (commonly known as SOT23 in Asia) DFN2020-6,
DFN2020-3 packages
• Green Molding Compound (No Br, Sb) (Note 1)
1. Vdd 2. NC 3. Output
DFN2020-6
1. Vdd
3. Output
DFN2020-3
Applications
• Cover Switch in Clam-Shell Cellular Phones
• Cover Switch in Notebook PC/PDA
• Contactless Switch in Consumer Products
Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
AH180
Document number: DS31023 Rev. 19 - 4
1 of 12
www.diodes.com
February 2019
© Diodes Incorporated



AH180
Typical Application Circuit
2.5~5.5V
AH180
C
AH180
Gnd
RL
Output
Note: C is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF~100nF.
RL is the pull-up resistor, the recommended resistance is 10Kohm~100Kohm.
Pin Descriptions
Pin Name
Vdd
GND
Output
NC
P/I/O
P/I
P/I
O
NC
Power Supply Input
Ground
Output Pin
No Connected
Description
Functional Block Diagram
Vdd
Hall Plate
Hall Plate
Amp
Amp
Power
switch
Latch
Logical
Latch
Output
GND
AH180
Document number: DS31023 Rev. 19 - 4
2 of 12
www.diodes.com
February 2019
© Diodes Incorporated





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