True Zero Speed, Low Jitter, High Accuracy
 Position Sensor IC
ATS627LSG
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
OPERATING CHARACTERISTICS Valid through full operating supply voltage and ambient temperature ranges, using 
Reference Target 60+2; unless otherwise specified
Characteristics
Symbol
Test Conditions
Min.    Typ.
1
Max.    Unit
Electrical Characteristics 
Supply Voltage
2
 V
CC
 Operating, T
J
 < T
J
(max) 
4.0 
24 
V 
Undervoltage Lockout 
V
CC(UV)
 V
CC
 = 0 ?5 V or 5 ?0 V 
3.6     3.95     V 
Reverse Supply Current
3
I
RCC
 V
CC
 = V
RCC
(max)
 
10     mA
Supply Zener Clamp Voltage 
V
Zsupply
 I
CC
 = I
CC
(max) + 3 mA, T
A
 = 25篊 
28 
V 
Supply Current 
I
CC
 
7 
12     mA 
Test Pin Zener Clamp Voltage
4
 
V
ZTEST
 
6 
V 
Power-On Characteristics 
Power-On State 
POS   V
OUT 
, IC connected as in figure 9
High     
V
Output Stage Characteristics 
Low Output Voltage 
V
OUT(SAT)
  VOUT = On (V
OUT
 = low), I
OUT
 = 20 mA 
0 
450     mV 
Output Zener Clamp Voltage 
V
ZOUTPUT
 I
OUT
 = 3 mA, T
A
 = 25癈 
28 
V 
Output Leakage Current 
I
OUT(OFF)
  VOUT = Off (V
OUT
 = high) 
10 
糀 
Output Current Limit 
I
OUT(LIM)
  VOUT = On (V
OUT
 = low), T
J
 < T
J
(max) 
25
 45
 70     mA 
Output Rise Time 
t
r(OUT)
V
PU
 = 12 V,  R
PU
 = 1.0 k? C
LOAD
 = 4.7 nF , 
see figure 1 
10 
約 
Output Fall Time 
t
f(OUT)
 V
PU
 = 12 V, R
PU
 = 1.0 k? C
LOAD
 = 4.7 nF, 
see figure 1
0.6 
2 
約 
DAC Characteristics 
Allowable User-Induced Offset
5
 
B
DIFFEXT
 
60 
60 
G 
Other Operating Characteristics, with Continuous Update method, bounded for increasing and decreasing AG 
Running Mode Lockout Enable
LOE
115
mV
Running Mode Lockout Release
LOR
220
mV
Operate Point 
B
OP
 
% of peak-to-peak V
PROC
 , referenced from 
PDAC to NDAC, V
OUT
 high ?low 
60 
% 
Release Point 
B
RP
 
% of peak-to-peak V
PROC ,
 referenced from 
PDAC to NDAC, V
OUT
 low ?high 
40 
% 
Bandwidth
 f
-3dB
   Cutoff frequency for low pass filter 
20 
kHz 
Operational Speed 
S
ROT
 
0 
    12 000    rpm 
Performance Characteristics 
Operational Magnetic Range
 B
IN
   Peak-to-peak differential signal 
30 
     1200     G 
Air Gap 
AG 
Compliant to accuracy specifications, measured 
from package branded face to target tooth 
0.5 
2.5     mm 
No missed edges, measured from package 
branded face to target tooth 
0.5 
3.0     mm 
Relative Timing Accuracy, Sequential 
Mechanical Rising Edges 
ERR
RR 
0.5 mm d AG d 2.5 mm; constant target speed, 
Running mode; relative to measurement taken 
at AG = 1.5 mm 
?.4     deg. 
Continued on the next page&