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PDF A1242 Data sheet ( Hoja de datos )
| Número de pieza | A1242 | |
| Descripción | Two-Wire Chopper-Stabilized Hall Effect Latch | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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A1242
Two-Wire Chopper-Stabilized Hall Effect Latch
Discontinued Product
This device is no longer in production. The device should not be
purchased for new design applications. Samples are no longer available.
Date of status change: October 31, 2011
Recommended Substitutions:
• for the A1242ELHLT-I2-T use the A1244LLHLX-I2-T
• for the A1242ELHLT-I1-T use the A1244LLHLX-I1-T
• for the A1242LLHLT-I2-T use the A1244LLHLX-I2-T
• for the A1242LLHLT-I1-T use the A1244LLHLX-I1-T
• for the A1242EUA-I1-T and A1242LUA-I1-T use the A1244LUA-I1-T
• for the A1242LUA-I2-T use the A1244LUA-I2-T
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan
for a product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The
information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no respon-
sibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
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A1242
Two-Wire Chopper-Stabilized Hall Effect Latch
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
Characteristic
Package Thermal Resistance
Symbol
RθJA
Test Conditions*
Package LH, minimum-K PCB (single layer, single-sided with
copper limited to solder pads)
Package LH, low-K PCB (single layer, double-sided with
0.926 in2 copper area)
Package UA, minimum-K PCB (single layer, single-sided with
copper limited to solder pads)
*Additional information available on the Allegro Web site.
Power Derating Curve
TJ(max) = 165°C; ICC = ICC(max)
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
Low-K PCB, Package LH
9
8
7
(R JA = 110 °C/W)
Minimum-K PCB, Package UA
6
5
4
(R JA = 165 °C/W)
Minimum-K PCB, Package LH
3
2
(R JA = 228 °C/W)
20 40 60 80 100 120 140 160
Temperature (°C)
VCC(max)
VCC(min)
180
Power Dissipation versus Ambient Temperature
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
Low-K PCB, Package LH
(R JA = 110 °C/W)
Min-K PCB, Package UA
(R JA = 165 °C/W)
Min-K PCB, Package LH
(R JA = 228 °C/W)
20 40 60 80 100 120 140
Temperature (°C)
160
180
Value Units
228 ºC/W
110 ºC/W
165 ºC/W
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
4
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A1242
Two-Wire Chopper-Stabilized Hall Effect Latch
Package LH, 3-Pin (SOT-23W)
2.98
+0.12
–0.08
1.49 D
3
A
2.90
+0.10
–0.20
0.96 D
1.91
+0.19
–0.06
D
12
0.55 REF
0.25 BSC
8X 10° REF
Branded Face
1.00 ±0.13
0.95 BSC
0.05
+0.10
–0.05
0.40 ±0.10
For Reference Only; not for tooling use (reference dwg. 802840)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
A Active Area Depth, 0.28 mm REF
B Reference land pattern layout
All pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary
to meet application process requirements and PCB layout tolerances
C Branding scale and appearance at supplier discretion
D Hall element, not to scale
4°±4°
0.180+–00..005230
0.70
0.25 MIN
1.00
Seating Plane
Gauge Plane
0.95
B PCB Layout Reference View
2.40
NNT
1
C Standard Branding Reference View
N = Last two digits of device part number
T = Temperature code
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
10
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11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet A1242.PDF ] | |
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