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What is A1211?

This electronic component, produced by the manufacturer "Allegro", performs the same function as "Continuous-Time Latch".


A1211 Datasheet PDF - Allegro

Part Number A1211
Description Continuous-Time Latch
Manufacturers Allegro 
Logo Allegro Logo 


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Total 14 Pages



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A1210, A1211, A1212, A1213, and A1214
Continuous-Time Latch Family
FEATURES AND BENEFITS
• AEC-Q100 automotive qualified
• Continuous-time operation
□Fast power-on time
□Low noise
• Stable operation over full operating temperature range
• Reverse-battery protection
• Solid-state reliability
• Factory-programmed at end-of-line for optimum
performance
• Robust EMC performance
• High ESD rating
• Regulator stability without a bypass capacitor
Packages:
3-Pin SOT23W (suffix LH)
3-Pin SIP (suffix UA)
1
2
Not to scale
3
1
2
3
VCC
DESCRIPTION
The AllegroA1210-A1214 Hall-effect latches are next
generation replacements for the popular Allegro 317x and
318x lines of latching switches. The A121x family, produced
with BiCMOS technology, consists of devices that feature fast
power-on time and low-noise operation. Device programming
is performed after packaging, to ensure increased switchpoint
accuracy by eliminating offsets that can be induced by package
stress. Unique Hall element geometries and low-offset amplifiers
help to minimize noise and to reduce the residual offset voltage
normally caused by deviceovermolding, temperatureexcursions,
and thermal stress.
The A1210-A1214 Hall-effect latches include the following on
a single silicon chip: voltage regulator, Hall-voltage generator,
small-signal amplifier, Schmitt trigger, and NMOS output
transistor. The integrated voltage regulator permits operation
from 3.8 to 24 V. The extensive on-board protection circuitry
makes possible a ±30 V absolute maximum voltage rating
for superior protection in automotive and industrial motor
commutation applications, without adding external components.
All devices in the family are identical except for magnetic
switchpoint levels.
The small geometries of the BiCMOS process allow these
devices to be provided in ultrasmall packages. The package
styles available provide magnetically optimized solutions for
most applications. Package LH is an SOT23W, a miniature low-
profile surface-mount package, while package UAis a three-lead
ultramini SIP for through-hole mounting. Each package is lead
(Pb) free, with 100% matte-tin-plated leadframes.
Regulator
To all subcircuits
Amp
VOUT
A1210-DS, Rev. 13
Gain
Offset
Trim
Control
Functional Block Diagram
GND

line_dark_gray
A1211 equivalent
A1210, A1211,
A1212, A1213,
and A1214
Continuous-Time Latch Family
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
Characteristic
Package Thermal Resistance
Symbol
RθJA
Test Conditions
Package LH, on single layer, single-sided PCB with copper limited to
solder pads
Package LH, on single layer, double-sided PCB with 0.926 in2 copper
area
Package UA on single layer, single-sided PCB with copper limited to
solder pads
Value Units
228 ºC/W
110 ºC/W
165 ºC/W
Power Derating Curve
TJ(max) = 165ºC; ICC = ICC(max)
25
24
23
VCC(max)
22
21
20
19
18
17
16
15
14
13
12
11
Low-K PCB, Package LH
(RθJA = 110 ºC/W)
10
9 Minimum-K PCB, Package UA
8
7
6
(RθJA = 165 ºC/W)
Minimum-K PCB, Package LH
5 (RθJA = 228 ºC/W)
4
3
VCC(min)
2
20 40 60 80 100 120 140 160 180
Power DissipatiToenmvpeerrsatuusreAmCb) ient Temperature
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
20
(RMθiJnAim=(uR1Lmθ6JoA5-wK=-ºKCP1/PC1W0CB)Bº,C,P/PWaac)ckkaaggee
LH
UA
(RMθiJnAim=u2m2-8KºPCC/WB), Package LH
40 60 80 100 120 140 160 180
Temperature (°C)
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for A1211 electronic component.


Information Total 14 Pages
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