ATS636LSETN-T Allegro Microsystems Inc, ATS636LSETN-T Datasheet - Page 10

• Manufacturer Part Number: ATS636LSETN-T
• Description: IC,HALL-EFFECT SWITCH,SINGLE-ENDED,SIP,4PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Linear - Programmabler

Specifications of ATS636LSETN-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
Program Enable To program the device, a keying sequence
is used to activate / enable the programming mode as shown in
figure 4. This program key sequence consisting of a VPP pulse, at
least seven VPH pulses, and a VPP pulse with no supply interrup-
tions. The sequence is designed to prevent the device from being
programmed accidentally (e.g., as a result of noise on the supply
line).
Code Programming After the desired switchpoint code is
selected (0 through 127), each bit of the corresponding binary
address should be programmed individually, not at the same
time. For example, to program code 5 (binary 000101), bits 1 and
3 need to be programmed. A bit is programmed by addressing
V
V
V
0
PH
PP
PL
V
V
V
t
0
d(1)
PP
PH
PL
Program Enable
t
V
d(1)
V
V
PH
PP
PL
t
0
Figure 4. Program Enable Pulse Sequence
d(1)
Figure 5. Code Programming Example
Figure 6. Polarity Bit Programming
t
t
d(1)
d(0)
Programmable Back Biased Hall-Effect
Bit 3 Address
t
d(1)
000100
Code 4
Program Enable
t
d(1)
PROGRAM ENABLE
(8 Pulses Shown)
7 or More Pulses
t
dP
the code and then applying a V
reversible. An appropriate sequence for blowing code 5 is shown
in figure 5.
Polarity Bit Programming If the desired switchpoint has
negative polarity, the polarity bit must be programmed. To do this
it is necessary to first apply the polarity key sequence before the
program key sequence (figure 6). Finally a V
t
reversible. The polarity bit is for adjusting programming range
only and will not affect the output polarity. The proper output
polarity device is determined by ordering the correct part number
(ATS635 or ATS636), as they are different ICs.
dP
Switch with TPOS Functionality
must be applied to program this bit, the programming is not
t
d(0)
t
d(0)
t
dP
Program Enable
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
PP
pulse, the programming is not
Code 1
000001
PP
pulse of duration
10