Bipolar Switch. A1204 Datasheet

A1204 Datasheet PDF, Equivalent


Part Number

A1204

Description

Continuous-Time Bipolar Switch

Manufacture

Allegro

Total Page 13 Pages
PDF Download
Download A1204 Datasheet PDF


A1204 Datasheet
A1201, A1202, A1203, and A1204
Continuous-Time Bipolar Switch Family
Features and Benefits
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), and
3 pin SIP (suffix UA)
Description
The Allegro® A1201, A1202, A1203, and A1204 Hall-effect
bipolar switches are next-generation replacements and
extension of the popular Allegro A3134, A3133, and A3132
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
www.DataSheet4U.com
Not to scale
Continued on the next page…
Functional Block Diagram
VCC
A1201-DS, Rev. 5
Regulator
To all subcircuits
Amp
Gain
Offset
Trim
Control
VOUT
GND

A1204 Datasheet
A1201, A1202,
A1203, and A1204
Continuous-Time Bipolar Switch Family
Description (continued)
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 SIPfor through-
hole mounting. Each package is lead (Pb) free, with 100% matte
tin plated leadframes.
Selection Guide1
Part Number
A1201ELHLT-T
A1201EUA-T
A1201LLHLT-T
A1201LUA-T
Packing2
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
Mounting
3-pin SOT23W surface mount
3-pin SIP through hole
3-pin SOT23W surface mount
3-pin SIP through hole
Ambient, TA
–40ºC to 85ºC
–40ºC to 150ºC
BRP (Min)
–50
BOP (Max)
50
A1202ELHLT-T
A1202EUA-T
A1202LLHLT-T
A1202LUA-T
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
3-pin SOT23W surface mount
3-pin SIP through hole
3-pin SOT23W surface mount
3-pin SIP through hole
–40ºC to 85ºC
–40ºC to 150ºC
–75
75
A1203ELHLT-T
A1203EUA-T
A1203LLHLT-T
A1203LUA-T
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
7-in. reel, 3000 pieces/reel
Bulk, 500 pieces/bag
3-pin SOT23W surface mount
3-pin SIP through hole
3-pin SOT23W surface mount
3-pin SIP through hole
–40ºC to 85ºC
–40ºC to 150ºC
–95
95
1 The variants cited in this footnote are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that
sale of this device is currently restricted to existing customer applications. The variants should not be purchased for new design applications
because obsolescence in the near future is probable. Samples are no longer available. Status change: October 31, 2006. These variants include:
A1204ELHLT-T, A1204EUA-T, A1204LLHLT-T, and A1204LUA-T.
2Contact Allegro for additional packing options.
Absolute Maximum Ratings
Characteristic
Supply Voltage
Reverse Supply Voltage
Output Off Voltage
Reverse Output Voltage
Output Current Sink
Magnetic Flux Density
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
VCC
VRCC
VOUT
VROUT
IOUTSINK
B
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
ºC
ºC
ºC
ºC
Allegro MicroSystems, Inc.
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com


Features Datasheet pdf A1201, A1202, A1203, and A1204 Continuou s-Time Bipolar Switch Family Features and Benefits ▪ Continuous-time operat ion ▫ Fast power-on time ▫ Low nois e ▪ Stable operation over full operat ing temperature range ▪ Reverse batte ry protection ▪ Solid-state reliabili ty ▪ Factory-programmed at end-of-lin e for optimum performance ▪ Robust EM C performance ▪ High ESD rating ▪ R egulator stability without a bypass cap acitor Packages: 3 pin SOT23W (suffix L H), and 3 pin SIP (suffix UA) Descript ion The Allegro® A1201, A1202, A1203, and A1204 Hall-effect bipolar switches are next-generation replacements and ex tension of the popular Allegro A3134, A 3133, and A3132 bipolar switch product line. Overall, theA120x family, produce d with BiCMOS technology, consists of c ontinuous-time devices that feature fas t power-on time and low-noise operation . Device programming is performed after packaging, to ensure increased switchp oint accuracy by eliminating offsets that can be induced by package stress. Unique H.
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