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參數(shù)資料
| 型號： | A3245LLHLT |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Chopper-Stabilized Omnipolar Hall-Effect Switches |
| 中文描述： | 斬波穩(wěn)定全極霍爾效應(yīng)開關(guān) |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 392K |
| 代理商： | A3245LLHLT |
A3245
A3245-DS, Rev. 1
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
The A3245 integrated circuit is an omnipolar, ultrasensitive Hall-effect switch
with a digital output. This sensor has an integrated regulator permitting operation
to 24 V, making it the
fi
rst omnipolar switch available for operation to 24 V. This
device is especially suited for operation over extended temperature ranges, up
to +150°C. Superior high-temperature performance is made possible through an
Allegro
patented dynamic offset cancellation, which reduces the residual offset
voltage normally caused by device overmolding, temperature excursions, and
thermal stress.
The A3245 Hall-effect switch includes the following on a single silicon chip:
voltage regulator, Hall-voltage generator, small-signal ampli
fi
er, chopper stabiliza-
tion, Schmitt trigger, and a short circuit protected open-drain output. Advanced
BiCMOS wafer fabrication processing is used to take advantage of low-voltage
requirements, component matching, very low input-offset errors, and small com-
ponent geometries.
The omnipolar operation of the A3245 allows activation with either a north
or
a south polarity
fi
eld of suf
fi
cient strength. In the absence of a magnetic
fi
eld,
the output is off. This patented magnetic-polarity-independence feature makes
this device an excellent replacement for reed switches, with improved ease of
manufacturing, because the A3245 does not require manufacturers to orient their
magnets. These devices allow simple on/off switching in industrial, consumer, and
automotive applications.
The A3245 is rated for operation between the ambient temperatures –40°C and
85°C for the E temperature range, and –40°C to 150°C for the L temperature
range. The small geometries of the BiCMOS process allow these devices to be
provided in ultrasmall packages. The package styles available provide magneti-
cally optimized solutions for most applications. Package LH is an SOT23W, a
miniature low-pro
fi
le surface-mount package, while package UA is a three-lead
ultramini SIP for through-hole mounting. Each package is available in a lead (Pb)
free version, with 100% matte tin plated leadframes.
AB SO LUTE MAX MUM RAT NGS
Supply Voltage, V
CC
..........................................
28 V
Reverse-Supply Voltage, V
RCC
........................
–18 V
Reverse-Supply Current, I
RCC
........................–
2 mA
Output Off Voltage, V
OUT
..................................
28 V
Output Current, I
OUTSINK
...........
Internally Limited
Magnetic Flux Density, B.........................
Unlimited
Operating Temperature
Ambient, T
A
, Range E..................
–40oC to 85oC
Ambient, T
A
, Range L................
–40oC to 150oC
Maximum Junction, T
J(MAX)
......................
165oC
Storage Temperature, T
S
..................
–65oC to 170oC
Chopper-Stabilized
Omnipolar Hall-Effect Switches
Package LH, 3-pin Surface Mount
Features and Bene
fi
ts
Package UA, 3-pin SIP
Omnipolar operation
Chopper stabilization
y
Superior temperature stability
y
Extremely low switchpoint drift
y
Insensitive to physical stress
Reverse battery protection
Output short circuit protection
Solid state reliability
Small size
Robust EMC capability
High ESD ratings (HBM)
1
3
2
V
G
V
1
2
3
V
V
G
1
2
3
1
2
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A3245ELHLT | Chopper-Stabilized Omnipolar Hall-Effect Switches |
| A3245ELHLT-T | Chopper-Stabilized Omnipolar Hall-Effect Switches |
| A3251 | Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250 | Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250JUA | Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A3245LLHLT-T | 功能描述:IC SW HALL EFFECT OMNI SOT23W RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A3245LUA | 功能描述:IC SW HALL EFFECT OMNI 3-SIP RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A3245LUA-T | 功能描述:IC SW HALL EFFECT OMNI 3-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR |
| A3245LUA-T | 制造商:Allegro MicroSystems 功能描述:Hall Effect Switch IC |
| A32464-000 | 制造商:TE Connectivity 功能描述:VARISTOR 300V 20MM STRAIGHT LEAD 制造商:TE Connectivity 功能描述:VARISTOR 300V 12.5KA DISC 20MM |
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