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> 50 hall effect sensor switche f h-temp 3144 A3144 E44
50 hall effect sensor switche f h-temp 3144 A3144 E44
SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION A 3144 E 44
These Hall-effect switches are monolithic integrated circuits with
tighter magnetic specifications, designed to operate continuously over
extended temperatures to +150 C, and are more stable with both
temperature and supply voltage changes. The unipolar switching
characteristic makes these devices ideal for use with a simple bar or rod
magnet. The four basic devices (3141, 3142, 3143, and 3144) are
identical except for magnetic switch points.
Each device includes a voltage regulator for operation with supply
voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic
Hall-voltage generator, temperature compensation circuitry, smallsignal
amplifier, Schmitt trigger, and an open-collector output to sink
up to 25 mA. With suitable output pull up, they can be used with
bipolar or CMOS logic circuits. The A3141 and A3142 are improved
replacements for the UGN/UGS3140 ; the A3144 is the
improved replacement for the UGN/UGS3120 .
The first character of the part number suffix determines the device
operating temperature range. Suffix E is for the automotive and
industrial temperature range of -40 C to +85 C. Suffix L is for the
automotive and military temperature range of -40 C to +150 C. Three
package styles provide a magnetically optimized package for most
applications. Suffix LT is a miniature SOT89/TO-243AA transistor
package for surface-mount applications; suffix U is a three-lead
plastic mini-SIP, while suffix UA is a three-lead ultra-mini-SIP.
Superior Temp. Stability for Automotive or Industrial Applications
4.5 V to 24 V Operation Needs Only An Unregulated Supply
Open-Collector 25 mA Output Compatible with Digital Logic
Activate with Small, Commercially Available Permanent Magnets
Supply Voltage, VCC ............................ 28 V
Reverse Battery Voltage, VRCC ........... -35 V
Magnetic Flux Density, B .......... Unlimited
Output OFF Voltage, VOUT .................. 28 V
Reverse Output Voltage, VOUT ........... -0.5 V
Continuous Output Current, IOUT ...... 25 mA
Operating Temperature Range, TA
Suffix E .................. -40 C to +85 C
Suffix L ................ -40 C to +150 C
TS .............................. -65 C to +170 C
ELECTRICAL CHARACTERISTICS at VCC = 8 V over operating temperature range.
Characteristic; Symbol ;Test Conditions ;Min. Typ. Max. Units
Supply Voltage ;VCC; Operating; 4.5 - 24 V
Output Saturation Voltage ;VOUT(SAT); IOUT = 20 mA, B > BOP ;- 175 400 mV
Output Leakage Current ;IOFF; VOUT = 24 V, B < BRP; -<1.0 10 UA
Supply Current ;ICC; B < BRP (Output OF F);- 4.4 9.0 mA
Output Rise Time ;tr; RL = 820 , CL = 20 pF ; 0.04 2.0 Us
Output Fall Time ;tf; RL = 820 , CL = 20 pF ; 0.18 2.0 Us
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
BOP at TA = 25 C Min.70 Typ.- Max.350
over operating temp. range Min.35 Typ.- Max.450
over operating temp. range 25 430
over operating temp. range 20 55
