A1126 查看數據表（PDF） - Allegro MicroSystems
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A1126 Datasheet PDF : 14 Pages
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A1126
Chopper-Stabilized Omnipolar Hall-Effect Switch
THERMAL CHARACTERISTICS: may require derating at maximum conditions; see application information
Characteristic
Symbol
Test Conditions*
Value Units
Package LH, 1-layer PCB with copper limited to solder pads
228 ºC/W
Package Thermal Resistance
RθJA
Package LH, 2-layer PCB with 0.463 in.2 of copper area each side
connected by thermal vias
110 ºC/W
Package UA, 1-layer PCB with copper limited to solder pads
165 ºC/W
*Additional thermal information available on Allegro Web site.
Power Derating Curve
25
24
VCC(max)
23
22
21
20
19
18
17
16
15
14
13
12
11
2-layer PCB, Package LH
(RθJA = 110 ºC/W)
10
9
1-layer PCB, Package UA
8
(RθJA = 165 ºC/W)
7
6
1-layer PCB, Package LH
5
(RθJA = 228 ºC/W)
4
3
2
VCC(min)
20 40 60 80 100 120 140 160 180
Temperature (ºC)
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
20
(R1θ-JlaAy=e(Rr12θP6J-AlC5ay=BºeC,1r P1/PW0aCc)ºBCk,a/PWga)eckUaAge LH
(1R-θlJaAye=r2P2C8BºC, P/Wac)kage LH
40 60 80 100 120 140 160 180
Temperature (°C)
Allegro MicroSystems, LLC
8
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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