联系人：常艳云
联系电话：18007029964
lh8253mh253 hall-effect sensor is a temperature stable, stress-resistant switch. superior high-temperature performance is made possible through a dynamic offset cancellation that utilizes chopper-stabilization. this method reduces the offset voltage normally caused by device over molding, temperature dependencies, and thermal stress.
lh8mh includes the following on a single silicon chip: voltage regulator, hall voltage generator, small-signal amplifier, chopper stabilization, schmitt trigger, open-drain output. advanced cmos wafer fabrication processing is used to take advantage of low-voltage requirements, component matching, very low input-offset errors, and small component geometries.
lhmh8 is rated for operation between the ambient temperatures –40℃ and +85℃ for the e temperature range. the four package styles available provide magnetically optimized solutions for most applications. package types so is an sot-23(1.1 mm nominal height), sq is an qfn2020-3(0.55 mm nominal height), a miniature low-profile surface-mount package, while package ua is a three-lead ultra mini sip for through-hole mounting.
the package type is in ahalogen free version was verified by third party lab.
features and benefits
l cmos hall ic technology
l solid-state reliability much better than reed switch
l omni polar output switches with absolute value of north or south pole from magnet
l low power consumption(2.6ma)
l high sensitivity for reed switch replacement
l 100% tested at 125℃ for k.
l small size
l esd hbm ±4kv min
l cost competitive
applications
l solid state switch
l lid close sensor for power supply devices
l magnet proximity sensor for reed switch replacement in high duty cycle applications.
l safety key on sporting equipment
l revolution counter
l speed sensor
l position sensor
l rotation sensor
l safety key
091713page 1rev. 1.04
型号lh8253
note:exceeding the absolute maximum ratings may cause permanent damage. exposure to absolute maximum-
rated conditions for extended periods may affect device reliability.
electrical specifications
dc operating parameters ta=+25℃, vdd=5.0v
parameters
test conditions
min
typ
max
units
supply voltage,(vdd)
operating
2.5
6
v
supply current,(idd)
average
2.6
6.0
ma
output low voltage,(vdson)
iout=10ma
400
mv
output leakage current,(ioff)
ioff
bout = 5v
10
ua
output rise time,(tr)
rl=10kω, cl =20pf
0.45
us
output fall time,(tf)
rl=10kω; cl =20pf
0.45
us
electro-static discharge
hbm
4
kv
operate point,
(bops)
s pole to branded side, b > bop, vout on
30
60
gauss
(bopn)
n pole to branded side, b > bop, vout on
-60
-30
release point
(brps)
s pole to branded side, b < brp, vout off
5
25
gauss
(brpn)
n pole to branded side, b < brp, vout off
-25
-5
hysteresis,(bhys)
|bopx - brpx|
5
gauss

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江西攀驰电子科技有限公司

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中国 九江