ATS675LSETN-HT-T Allegro, ATS675LSETN-HT-T Datasheet - Page 5

• Manufacturer Part Number: ATS675LSETN-HT-T
• Manufacturer: Allegro

ATS675LSE
OPERATING CHARACTERISTICS
1
2
3
4
5
6
reaches 90% of V
7
8
detect a tooth when powered-on opposite a tooth and correctly detecting a valley when powered-on opposite a valley, using reference target 8X.
9
Running Mode, but TPOS functionality is NOT guaranteed, possibly resulting in undetected target features during Initial Calibration. Relative Timing
Accuracy (Err
10
valley to a tooth, and a falling edge is a transition from a tooth to a valley. See figure 7.
11
12
13
14
normalized by Automatic Gain Calibration.
Typical values are at T
Maximum voltage must be adjusted for power dissipation and junction temperature; see Power Derating section.
Maximum current limit is equal to I
Negative current is defined as conventional current coming out of (sourced from) the specified device terminal.
Power-On Time is the duration from when V
Output Delay Time is the duration from when a crossing of the magnetic signal switchpoint, B
Characterization data shows 12 V fall time to be 1.5 times longer than 5 V fall time. See figure 2.
The Operational Air Gap Range is the range of installation air gaps within which the TPOS (True Power-On State) function is guaranteed to correctly
The Extended Air Gap Range is a range of installation air gaps, larger than AG
Tooth Speed
Analog Signal Bandwidth
Switchpoint Characteristics
Switchpoint
Internal Hysteresis
Calibration
Initial Calibration
TPO to Running Mode Adjustment
Signal Characteristics
Maximum Allowable Signal Reduction
The term mechanical edge refers to a target feature, such as the side of a gear tooth, passing opposite the device. A rising edge is a transition from a
Relative Timing Accuracy refers to the difference in accuracy, relative to a 0.5 mm air gap, through the entire Operational Air Gap Range. See figure 7.
Refer to Functional Description section for a description of Internal Hysteresis.
Signal frequency, f
Running Mode; 4X target used. The Operational Signal Amplitude, V
Characteristics
REL
) not guaranteed in Extended Air Gap Range.
13
OUT
12
SIG
(high).
A
< 200 Hz.
= 25°C and V
CC
(max) + 3 mA.
CC
14
= 12 V. Performance may vary for individual units, within the specified maximum and minimum limits.
(continued) Valid using reference target 8X, T
CAL
B
B
Optimized for Automotive Cam Sensing Applications
Symbol
CC
reduce(NG)
reduce(G)
B
CAL
f
BW
B
SIG
HYS
TPORM
rises above V
ST
I
Tooth signal frequency, sinusoidal input signal
Equivalent to –3 dB cutoff frequency
% of peak-to-peak, referenced to tooth signal
(see figure 4)
% of peak-to-peak signal
Quantity of mechanical falling edges during
which device is in full TPOS Mode
Quantity of target edges after CAL
TPOS to Running Mode threshold adjustment
occurs
Reduction in V
to lowest peak V
within range (see figure 5)
Reduction in V
to lowest peak V
other specifications may be out of range (see
figure 5)
CC
(min) until a valid output state is realized.
PROC
PROC
PROC
Test Conditions
PROC(reduce)
PROC(reduce)
, is the internal signal generated by the Hall detection circuitry and
amplitude from V
amplitude from V
Self-Calibrating TPOS Speed Sensor
TPOS
, all specifications
; output switches,
, within which the device will accurately detect target features in
A
I
, T
over which
PROC(high)
PROC(high)
J
ST
, and V
, occurs to when the electrical output signal, V
CC
within specification, unless otherwise noted
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Min.
0
–
–
–
–
–
–
–
Typ.
20
30
10
–
–
1
–
–
1
Max.
8000
15
25
–
–
–
3
–
OUT
%pk-pk
%pk-pk
Edge
Edge
Unit
kHz
Hz
%
%
,
5