ATS635LSETN-T Allegro Microsystems Inc, ATS635LSETN-T Datasheet - Page 9

• Manufacturer Part Number: ATS635LSETN-T
• Description: IC,HALL-EFFECT SWITCH,SINGLE-ENDED,SIP,4PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Linear - Programmabler

Specifications of ATS635LSETN-T

• Rohs Compliant: YES
• Sensing Range: 0.25mm ~ 6mm
• Voltage - Supply: 4.2 V ~ 24 V
• Current - Supply: 5.5mA
• Current - Output (max): 20mA
• Output Type: Digital, Open Collector
• Features: Programmable
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 4-SIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ATS635LSE and
ATS636LSE
The ATS635LSE and ATS636LSE magnetic operate point, B
is programmed by serially addressing the devices through the
supply terminal (1). After the correct operate point is determined,
the device programming bits are selected and blown, then a lock
bit is selected and blown to prevent any further (accidental)
programming.
Addressing B
negative direction from its initial value. Addressing is used to
determine the desired code, while programming is used to lock
the code. A unique key is needed to blow fuses, while addressing
as described below does not allow for the device to be pro-
grammed accidentally.
Addressing with positive polarity The magnetic oper-
ate point, B
addresses are sequentially selected (figure 2) until the required
PROGRAMMING PROTOCOL
Programming Protocol (T
Programming Voltage
Programming Current
Pulse Width
Pulse Rise Time
Pulse Fall Time
1
provide the current necessary to blow the fuse.
2
Programming voltages are measured at pin 1 (VCC) of the SIP. A minimum capacitance of 0.1 μF must be connected from VCC to GND of the SIP to
Testing is the only method that guarantees successful programming.
V
V
V
PL
0
PH
PP
Figure 2. Addressing Pulses: Positive Polarity
OP
Characteristics
, is adjustable using 7 bits or 128 addresses. The
OP
t
d(1)
is programmable in both the positive and
1,2
A
= 25°C)
Valid over operating temperature range, unless otherwise noted
Symbol
Addressing / Programming Protocol
V
V
t
t
V
I
t
d(0)
d(1)
PP
dP
t
t
t
PH
PP
PL
d(0)
r
f
Minimum voltage range during programming
Maximum supply current during programming
Off-time between bits
Enable, address, program, or lock bit on-time
Program pulse on-time
V
V
PL
PH
to V
or V
Programmable Back Biased Hall-Effect
PH
PP
or V
OP
to V
,
PP
PL
Test Conditions
operate point is reached. The first address must be selected with
a high voltage pulse, V
be V
magnetic release point, B
addresses.
Addressing with negative polarity The magnetic operate
point, B
128 addresses. To invert the polarity it is necessary to first apply
a keying sequence (figure 3). The polarity key contains a V
pulse and at least 1 V
the key in figure 3 shows 2 V
sequentially selected until the required operate point is reached.
The first address must be selected with a high voltage pulse, V
while the remaining pulses should be V
Switch with TPOS Functionality
V
V
V
0
PP
PH
PL
PH
Figure 3. Addressing Pulses: Negative Polarity
pulses. Note that the difference between B
OP
, is adjustable with negative polarity using 7 bits or
t
d(1)
PH
PP
pulse, but no more than 6 V
, while the remaining pulses should
RP
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
, the hysteresis, B
Min.
100
PH
4.5
8.5
25
20
20
–
–
–
pulses. The addresses are then
Typ.
500
300
PH
5
–
–
–
–
–
–
pulses.
t
d(0)
HYS
Max.
5.5
15
27
11
, is fixed for all
–
5
OP
–
–
–
PH
and the
pulses;
Units
PP
mA
μs
μs
μs
μs
μs
V
V
V
PP
9
,