NOT RECOMMENDED FOR NEW DESIGN
USE AH1808
AH9248
HIGH SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Description
Pin Assignments
The AH9248 is an ultra-sensitive Hall-effect switch with digital latched
output, mainly designed for battery-operation, hand-held equipments.
(Front View)
Special CMOS process is used for low-voltage and low-power
requirement. A chopper stabilized amplifier improves stability of
magnetic switch points. A sleep-awake logic controls the IC in sleep
time or awake time. This function will reduce the average operating
current of the IC. During the awake time, the output is changed with
the magnetic flux density. During the sleep time, the output is latched
in its previous state and the current consumption will reduce to some
μA.
3
OUTPUT
2
GND
1
VCC
TO-92S-3
(Top View)
The IC switching behaviour is omnipolar, either north or south pole
sufficient strength will turn the output on. If the magnetic flux density
is larger than operating point (BOP), the output will be turned on; if it is
less than releasing point (BRP), the output will be turned off.
The AH9248 is available in TO-92S-3, SOT-23-3 and DFN-2×2-3
packages which are optimized for most applications.
Pin 1 Mark
VCC
2
1
OUTPUT
3
GND
GND
3
1
VCC
OUTPUT
2
Features
Micropower Operation
2.5V to 5.5V Power Supply
Switching for Both Poles of a Magnet (Omnipolar)
Stabilized Chopper
Superior Temperature Stability
Digital Output Signal
Built-in Pull-up Resistor (AH9249)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
SOT-23-3
DFN-2×2-3
Applications
Cover Switch in Notebook PC/PDA
Handheld Wireless Application Awake Switch
Magnet Switch in Low Duty Cycle Applications
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain
很抱歉,暂时无法提供与“AH9248Z3TR-G1”相匹配的价格&库存,您可以联系我们找货
免费人工找货