ATS645LSH-I1 Allegro Microsystems Inc, ATS645LSH-I1 Datasheet - Page 11

• Manufacturer Part Number: ATS645LSH-I1
• Description: Hall Effect IC
• Manufacturer: Allegro Microsystems Inc

Specifications of ATS645LSH-I1

• Termination Type: Through Hole
• No. Of Pins: 4
• Mounting Type: Through Hole
• Hall Effect Type: Gear Tooth
• Supply Voltage Min: 4V
• Peak Reflow Compatible (260 C): No
• Bandwidth: 40kHz
• Output Type: Digital
• Filter Terminals: Through Hole
• Rohs Compliant: No
• Leaded Process Compatible: No
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ATS645LSH
Power Supply Protection
The device contains an on-chip regulator and can operate over
a wide V
unregulated power supply, transient protection must be added
externally. For applications using a regulated line, EMI/RFI pro-
tection may still be required. Contact Allegro MicroSystems for
information on the circuitry needed for compliance with various
EMC specifi cations. Refer to fi gure 7 for an example of a basic
application circuit.
Undervoltage Lockout
When the supply voltage falls below the undervoltage lockout
CC
range. For devices that need to operate from an
Figure 7: Typical Application Circuit
True Zero Speed Miniature Differential Peak-
Pins 2 and 3 floating
ECU
V+
100 Ω
R
SENSE
ATS645
GND
VCC
4
1
voltage, V
returns to the Power-On State (POS) until suffi cient V
plied. I
V
Assembly Description
This device is integrally molded into a plastic body that has been
optimized for size, ease of assembly, and manufacturability.
High operating temperature materials are used in all aspects
of construction.
Detecting Gear Tooth Sensor IC
CC
< V
CC
CC(min)
levels may not meet datasheet limits when
CC(UV)
C
0.01
BYP
.
, the device enters Reset, where the output state
µF
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
CC
is sup-
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