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A1212 Datasheet Preview

A1212 Datasheet

Continuous-Time Latch

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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:
Not to scale
3-pin SOT23W
(suffix LH)
NOT FOR
NEW DESIGN
3-pin SIP,
matrix HD style
(suffix UA)
3-pin SIP,
chopper style
(suffix UA)
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 switch point
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 device overmolding, temperature excursions,
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
switch point levels.
The small geometries of the BiCMOS process allow these
devices to be provided in ultra small 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
ultra mini SIP for through-hole mounting. Each package is lead
(Pb) free, with 100% matte-tin-plated leadframes.
VCC
A1210-DS, Rev. 16
MCO-0000574
Regulator
To all subcircuits
Amp
VOUT
Gain
Offset
Trim
Control
Functional Block Diagram
GND
February 12, 2020




Allegro

A1212 Datasheet Preview

A1212 Datasheet

Continuous-Time Latch

No Preview Available !

A1210, A1211,
A1212, A1213,
and A1214
Continuous-Time Latch Family
SPECIFICATIONS
SELECTION GUIDE
Part Number
Packing [1]
A1210ELHLT-T 7-in. reel, 3000 pieces/reel
A1210ELHLX-T 13-in. reel, 10000 pieces/reel
A1210LLHLT-T 7-in. reel, 3000 pieces/reel
A1210LLHLX-T 13-in. reel, 10000 pieces/reel
A1210LUA-T [2]
Bulk, 500 pieces/bag
A1211LUA-T [2]
Bulk, 500 pieces/bag
A1212LLHLT-T 7-in. reel, 3000 pieces/reel
A1212LLHLX-T 13-in. reel, 10000 pieces/reel
A1212LUA-T [2]
Bulk, 500 pieces/bag
A1213LLHLT-T 7-in. reel, 3000 pieces/reel
A1213LLHLX-T 13-in. reel, 10000 pieces/reel
A1213LUA-T [2]
Bulk, 500 pieces/bag
A1214LLHLT-T 7-in. reel, 3000 pieces/reel
A1214LLHLX-T 13-in. reel, 10000 pieces/reel
A1214LUA-T [2]
Bulk, 500 pieces/bag
Mounting
3-pin SOT23W surface mount
3-pin SOT23W surface mount
3-pin SOT23W surface mount
3-pin SOT23W surface mount
3-pin SIP through hole
3-pin SIP through hole
3-pin SOT23W surface mount
3-pin SOT23W surface mount
3-pin SIP through hole
3-pin SOT23W surface mount
3-pin SOT23W surface mount
3-pin SIP through hole
3-pin SOT23W surface mount
3-pin SOT23W surface mount
3-pin SIP through hole
Ambient, TA
–40°C to 85°C
BRP (Min) BOP (Max)
–40°C to 150°C
–150 G
150 G
–40°C to 150°C –180 G
180 G
–40°C to 150°C –175 G
175 G
–40°C to 150°C –200 G
200 G
–40°C to 150°C –300 G
300 G
1 Contact Allegro for additional packing options.
2 The chopper-style UA package is not for new design; the matrix HD style UA package is recommended for new designs.
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Supply Voltage
Reverse Supply Voltage
Output Off Voltage
Reverse Output Voltage
Output Current
Magnetic Flux Density
VCC
VRCC
VOUT
VROUT
IOUTSINK
B
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
TA
TJ(max)
Tstg
Notes
1 G = 0.1 mT (millitesla)
Range E
Range L
Rating
30
–30
30
–0.5
25
Unlimited
–40 to 85
–40 to 150
165
–65 to 170
Unit
V
V
V
V
mA
G
°C
°C
°C
°C
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
2


Part Number A1212
Description Continuous-Time Latch
Maker Allegro
PDF Download

A1212 Datasheet PDF






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