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A3260LT Schematic ( PDF Datasheet ) - Allegro MicroSystems

Teilenummer A3260LT
Beschreibung 2-WIRE/ CHOPPER-STABILIZED/ PRECISION HALL-EFFECT BIPOLAR SWITCH
Hersteller Allegro MicroSystems
Logo Allegro MicroSystems Logo 




Gesamt 12 Seiten
A3260LT Datasheet, Funktion
3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT BIPOLAR SWITCH
Suffix Code 'LH' Pinning
3
NC
12
Dwg. PH-003-5
Pinning is shown viewed from branded side.
ADVANCE INFORMATION
(subject to change without notice)
June 30, 2000
The A3260-- Hall-effect bipolar switch is an extremely
temperature-stable and stress-resistant sensor especially suited for
operation over extended temperature ranges to +150°C. Superior
high-temperature performance is made possible through dynamic
offset cancellation, which reduces the residual offset voltage normally
caused by device overmolding, temperature dependencies, and thermal
stress.
The device includes on a single silicon chip a voltage regulator,
Hall-voltage generator, small-signal amplifier, chopper stabilization,
Schmitt trigger, and a constant-current open-collector output. A south
pole of sufficient strength will turn the output OFF. An on-board
regulator permits operation with supply voltages of 3.5 to 24 volts.
Noise radiation is limited by control of the output current slew rate.
The first character of the part number suffix determines the device
operating temperature range; suffix ‘E–’ is -40°C to +85°C and ‘L–’ is
-40°C to +150°C. Three package styles provide a magnetically opti-
mized package for most applications. Suffix ‘–LH’ is a miniature low-
profile surface-mount package, ‘–LT’ is a miniature SOT-89/TO-
243AA transistor package for surface-mount applications; while suffix
‘–UA’ is a three-lead ultra-mini-SIP for through-hole mounting.
ABSOLUTE MAXIMUM RATINGS
at TA=+25°C
Supply Voltage, VCC ........................... 27 V
Reverse Battery Voltage, VRCC .......... -16 V
Magnetic Flux Density, B ........... Unlimited
Package Power Dissipation, PD . See Graph
Junction Temperature, TJ ............... +170°C
Operating Temperature Range, TA
Suffix ‘E–’ .................. -40°C to +85°C
Suffix ‘L–’ ................ -40°C to +150°C
Storage Temperature Range,
TS .............................. -65°C to +170°C
FEATURES
I Internal Current Regulator for 2-Wire Operation
I Output Slew Rate Controlled
I Resistant to Physical Stress
I Superior Temperature Stability
I Operation From Unregulated Supply
I Reverse Battery Protection
I Solid-State Reliability
I Small Size
Always order by complete part number: the prefix 'A' + the basic four-digit
part number + a suffix to indicate operating temperature range +
a suffix to indicate package style, e.g., A3260ELH .






A3260LT Datasheet, Funktion
3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT
BIPOLAR SWITCH
CRITERIA FOR DEVICE QUALIFICATION
All Allegro sensors are subjected to stringent qualification requirements prior to being released to production.
To become qualified, except for the destructive ESD tests, no failures are permitted.
Qualification Test
Test Method and Test Conditions
Biased Humidity (HAST) TA = 130°C, RH = 85%
High-Temperature
Operating Life (HTOL)
Accelerated HTOL
JESD22-A108,
TA = 150°C, TJ 165°C
TA = 175°C, TJ = 190°C
Autoclave, Unbiased
High-Temperature
(Bake) Storage Life
Temperature Cycle
Latch-Up
JESD22-A102, Condition C,
TA = 121°C, 15 psig
MIL-STD-883, Method 1008,
TA = 170°C
MIL-STD-883, Method 1010,
-65°C to +150°C
Electro-Thermally
Induced Gate Leakage
ESD,
Human Body Model
Electrical Distributions
CDF-AEC-Q100-002
Per Specification
Test Length Samples
50 hrs
77
408 hrs
77
504 hrs
77
96 hrs
77
1000 hrs
77
500 cycles
77
Pre/Post
Reading
Pre/Post
Reading
Pre/Post
Reading
6
6
x per
test
30
Comments
VCC = VOUT = 5 V
VCC = 24 V,
VOUT = 20 V
VCC = 24 V,
VOUT = 20 V
Test to failure,
All leads > TBD
115 Northeast Cutoff, Box 15036
6 Worcester, Massachusetts 01615-0036 (508) 853-5000

6 Page









A3260LT pdf, datenblatt
3260
2-WIRE, CHOPPER-STABILIZED,
PRECISION HALL-EFFECT
BIPOLAR SWITCH
HALL-EFFECT SENSORS
Partial Part Avail. Oper.
Characteristics at TA = +25°C
Number
Temp.
BOP(max) BRP(min) Bhys(typ)
Features
Notes
HALL-EFFECT UNIPOLAR SWITCHES in order of BOP and Bhys
3240
3209
3210
3361
3362
3161
3141
3235
5140
3142
3143
3144
3122
3123
3121
3150
E/L
+50 +5.0
10 chopper stabilized
1
E ±60 ±5.0 7.7 400 µW, chopper stabilized
E ±60 ±5.0 7.7 25 µW, chopper stabilized
E
+55*
+110‡
5.0*
2-wire, chopper stabilized
E
+110
+55
5.0* 2-wire, chopper stabilized
E
+160
+30
20 2-wire
E/L
+160
+10
55
S
+175
+25
15* output 1
2
-25 -175 15* output 2
2
E
+200
+50
55 300 mA output
1, 3
E/L
+230
+75
55
E/L
+340
+165
55
E/L
+350
+50
55
E/L
+400
+140
105
E/L
+440
+180
105
E/L
+450
+125
105
J
+40 to +850
20 programmable, chopper stabilized 1
HALL-EFFECT LATCHES & BIPOLAR SWITCHES† in order of BOP and Bhys
3260
3280
3134
3133
3281
3132
3187
3177
3625
3626
3195
3197
3175
3188
3283
3189
3275
3185
E/L
E/L
E/L
K/L/S
E/L
K/L/S
E/L
S
S
S
E/L
L
S
E/L
E/L
E/L
S
E/L
+30
+40
+50
+75
+90
+95
+150
+150
+150
+150
+160
+160
+170
+180
+180
+230
+250
+270
-30
-40
-50
-75
-90
-95
-150
-150
-150
-150
-160
-160
-170
-180
-180
-230
-250
-270
20
45
27
52
100
52
100*
200
200
200
220
230
200
200*
300
100*
100*
340*
bipolar, chopper stabilized
chopper stabilized
bipolar switch
bipolar switch
chopper stabilized
bipolar switch
900 mA outputs
400 mA outputs
chopper stabilized
1, 3, 5
1, 3, 5
1, 4
1
5
Operating Temperature Ranges:
S = -20°C to +85°C, E = -40°C to +85°C, J = -40°C to +115°C, K = -40°C to +125°C, L = -40°C to +150°C
Notes 1. Protected.
2. Output 1 switches on south pole, output 2 switches on north pole for 2-phase, bifilar-wound, unipolar-driven brushless dc
motor control.
3. Power driver output.
4. Active pull down.
5. Complementary outputs for 2-phase bifilar-wound, unipolar-driven brushless dc motor control.
* Minimum. ‡ Maximum
† Latches will not switch on removal of magnetic field; bipolar switches may switch on removal of field but require field reversal
for reliable operation over operating temperature range.
115 Northeast Cutoff, Box 15036
12 Worcester, Massachusetts 01615-0036 (508) 853-5000

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