ATS635LSE and ATS636LSE
Programmable Back Biased Hall-Effect
Switch with TPOS Functionality
PACKAGE DIAGRAM
The ATS635LSE and ATS636LSE programmable, true power-on state
(TPOS), sensors are an optimized Hall-effect IC and magnet combination
that switch in response to magnetic signals created by ferrous targets in
gear-tooth sensing and proximity applications.
The devices are externally programmable.
A wide range of
programmability is available on the magnetic operate point (B
OP
) while the
hysteresis remains fixed. This advanced feature allows for optimization of
the sensor switch point and can drastically reduce the effects of
mechanical placement tolerances found in production environments
.
A proprietary dynamic offset cancellation technique, with an internal
high-frequency clock, reduces the residual offset voltage, which is normally
caused by device overmolding, temperature dependencies, and thermal
stress. Having the Hall element and amplifier in a single chip minimizes
many problems normally associated with low-level analog signals.
This sensor system is ideal for use in gathering speed or position
information using gear-tooth-based configurations, or for proximity sensing
with ferrous targets.
The ATS635LSE switches HIGH in the presence of a ferrous target or
tooth and switches LOW in the presence of a target valley, window, or
when the ferrous target is removed. The ATS636LSE has the opposite
polarity and switches LOW in the presence of a ferrous target or tooth and
switches HIGH in the presence of a target valley, window, or when the
ferrous target is removed.
These devices are available in lead (Pb) free versions, with 100%
matte tin leadframe plating.
Pin 1 = VCC
Pin 2 = VOUT
Pin 3 = No Connect
Pin 4 = GND
FEATURES
Chopper Stabilization
Extremely low switch-point drift over temperature
On-chip Protection
Supply transient protection
Output short-circuit protection
Reverse-battery protection
True Zero-Speed Operation
True Power-On State
Single-chip Sensing IC for High Reliability
Optimized Magnetic Circuit
Wide Operating Voltage Range
Internal Regulator
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
CC
鈥︹€︹€︹€︹€︹€︹€?鈥︹€?.
28 V*
Reverse Supply Voltage, V
RCC
鈥︹€︹€︹€︹€?/div>
-18 V
Overvoltage Supply Current, I
CC
鈥?.鈥︹€?00
mA
Output Off Voltage, V
OUT鈥︹€?/div>
鈥︹€︹€︹€︹€︹€?/div>
26.5V
鈥?/div>
Output Sink Current, I
OUT
鈥?..鈥︹€︹€︹€?
20 mA
Magnetic Flux Density, B鈥︹€︹€︹€︹€?/div>
Unlimited
Package Power Dissipation, P
D
鈥?.
See Graph
Operating Temperature Range, T
A
Suffix 鈥淟鈥濃€︹€︹€?..鈥︹€︹€?.
-40 擄C to +150 擄C
Junction Temperature, T
J
鈥︹€?.鈥︹€︹€︹€?.165
擄C
Storage Temperature Range
T
S
鈥︹€︹€︹€︹€︹€︹€︹€︹€︹€?/div>
-65 擄C to +170 擄C
*Fault conditions that produce supply voltage transients will
be clamped by an internal Zener diode. These conditions
can be tolerated but should be avoided.
鈥?/div>
Internal current limiting is intended to protect the device
from output short circuits, but is not intended for continuous
operation.
Use the following complete part numbers when ordering:
Part Number
ATS635LSETN-T
ATS636LSETN-T
Pb-Free
Yes
Yes
Output
(Tooth)
High
Low
Packing*
13-in. reel, 450 pieces/reel
13-in. reel, 450 pieces/reel
*Contact Allegro for additional packing options.
ATS635LSE-DS
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ATS636LSETN-T相關(guān)型號PDF文件下載
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英文版
TRUE ZERO-SPEED, HALL-EFFECT ADAPTIVE GEAR-TOOTH SENSOR
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