AH1751-R(2018) Просмотр технического описания (PDF) - Diodes Incorporated.
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AH1751-R Datasheet PDF : 8 Pages
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NOT RECOMMENDED FOR NEW DESIGN
USE AH3774
AH1751
HALL EFFECT LATCH
Description
AH1751 is a single-digital-output Hall-effect sensor for high
temperature operation. The device includes an on-chip Hall voltage
generator for magnetic sensing, an amplifier to amplify Hall voltage,
and a comparator to provide switching hysteresis for noise rejection,
and an open-collector output pre-driver. An internal band-gap
regulator is used to provide temperature compensated supply voltage
for internal circuits and allows a wide operating supply range.
While the magnetic flux density (B) is larger than threshold Bop, the
OUT pin turns on (low). If B removed toward Brp, the OUT pin is
latched “on” state prior to B < Brp. When B < Brp, the OUT pin go into
“off ” state.
Features
Bipolar Hall Effect Latch Sensor
3.5V to 20V DC Operation Voltage
Open Collector Pre-Driver
50mA Output Sink Current
Chip Power Reverse-Connection Protection
Operating Temperature: -40°C to 125°C
SIP3, SC59 and SC59R (Commonly known as SOT23 in Asia):
Available in “Green” Molding Compound (No Br, Sb)
Totally Lead-free & Fully RoHS Compliant (Note 1 & 2
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
( Top View )
SIP3
3. OUT
2. GND
1. VCC
( Top View )
GND 2.
3. Output
1 . VCC
SC59
( Top View )
GND 2.
3. VCC
1 . Output
SC59R
Applications
Rotor Position Sensing
Current Switch
Encoder
RPM Detection
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3).compliant.
2. See https://www.diodes.com/quality/lead-free/ 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AH1751
Document number: DS31436 Rev. 4 - 3
1 of 8
www.diodes.com
March 2018
© Diodes Incorporated
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