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參數資料
| 型號： | A1180LUA-T |
| 廠商： | Allegro Microsystems Inc |
| 文件頁數： | 10/16頁 |
| 文件大小： | 543K |
| 描述： | IC SWITCH HALL EFFECT UNI 3-SIP |
| 產品培訓模塊： | Current Sensor |
| 標準包裝： | 500 |
| 傳感范圍： | 60G ~ 200G 跳閘 - 可編程，固定釋放 |
| 類型： | 單極開關 |
| 電源電壓： | 3.5 V ~ 24 V |
| 電流 - 電源： | 5mA |
| 輸出類型： | 數字，開路集電極 |
| 特點： | 可編程 |
| 工作溫度： | -40°C ~ 150°C |
| 封裝/外殼： | 3-SIP |
| 供應商設備封裝： | 3-SIP |
| 包裝： | 散裝 |
Sensitive Two-Wire Field-Programmable
Chopper-Stabilized Unipolar Hall Effect Switches
A1180, A1181,
A1182, and A1183
9
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Application Information
For additional general application information, visit the Allegro
MicroSystems Web site at www. allegromicro.com.
GND
A118x
VCC
V+
0.01 uF
A
B
B
GND
ECU
Package UA Only
A
B
Maximum separation 5 mm
R
SENSE
C
BYP
Figure 3. Typical application circuit
Typical Application Circuit
The A118x family of devices must be protected by an external
bypass capacitor, C
BYP
, connected between the supply, VCC,
and the ground, GND, of the device. C
BYP
reduces both external
noise and the noise generated by the chopper-stabilization func-
tion. As shown in gure 3, a 0.01 糉 capacitor is typical.
Installation of C
BYP
must ensure that the traces that connect it to
the A118x pins are no greater than 5 mm in length.
All high-frequency interferences conducted along the supply
lines are passed directly to the load through C
BYP
, and it serves
only to protect the A118x internal circuitry. As a result, the load
ECU (electronic control unit) must have suf cient protection,
other than C
BYP
, installed in parallel with the A118x.
A series resistor on the supply side, R
S
(not shown), in combi-
nation with C
BYP
, creates a lter for EMI pulses. (Additional
information on EMC is provided on the Allegro MicroSystems
Web site.)
When determining the minimum V
CC
requirement of the A118x
device, the voltage drops across R
S
and the ECU sense resistor,
R
SENSE
, must be taken into consideration. The typical value for
R
SENSE
is approximately 100 ?
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