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A1203 Datasheet Preview

A1203 Datasheet

Continuous-Time Bipolar Switch

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A1202 and A1203
Continuous-Time Bipolar Switch 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 AllegroA1202 and A1203 Hall-effect bipolar switches
are next-generation replacements and extension of the popular
Allegro A3133 andA3132 bipolar switch product line. Overall,
theA120x family, produced with BiCMOS technology, consists
of continuous-time 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 device overmolding, temperature
excursions, and thermal stress.
TheA120x Hall-effect bipolar switches 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 motor commutation
applications, without adding external components.All devices
in the family are identical, except for magnetic switchpoints.
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 a 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.
VCC
A1202-DS, Rev. 23
MCO-0000372
Regulator
To all subcircuits
Amp
VOUT
Gain
Offset
Trim
Control
Functional Block Diagram
GND
July 2, 2019




Allegro

A1203 Datasheet Preview

A1203 Datasheet

Continuous-Time Bipolar Switch

No Preview Available !

A1202
and A1203
Continuous-Time Bipolar Switch Family
SELECTION GUIDE
Part Number
Packing [1]
A1202LUA-T [2]
Bulk, 500 pieces/bag
A1203EUA-T [2]
Bulk, 500 pieces/bag
A1203LLHLT-T 7-in. reel, 3000 pieces/reel
A1203LLHLX-T 13-in. reel, 10000 pieces/reel
A1203LUA-T [2]
Bulk, 500 pieces/bag
Mounting
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
Ambient, TA
–40°C to 150°C
–40°C to 85°C
BRP (Min)
–75
BOP (Max)
75
–40°C to 150°C
–95
95
[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 Sink
Magnetic Flux Density
VCC
VRCC
VOUT
VROUT
IOUTSINK
B
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
TA
TJ(max)
Tstg
Range E
Range L
Notes
Rating
30
–30
30
–0.5
25
Unlimited
–40 to 85
–40 to 150
165
–65 to 170
Units
V
V
V
V
mA
G
°C
°C
°C
°C
3
12
12
3
Package LH
Terminal List
Number
Package LH
Package UA
11
23
32
Package UA
Name
VCC
VOUT
GND
Description
Connects power supply to chip
Output from circuit
Ground
Allegro MicroSystems
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
2


Part Number A1203
Description Continuous-Time Bipolar Switch
Maker Allegro
Total Page 14 Pages
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