A1383

更新时间： 2024-02-07 09:34:41

品牌	Logo	应用领域
急速微 - ALLEGRO		传感器
页数	文件大小	规格书
18页	404K
描述
Programmable Linear Hall Effect Sensors with Analog Output Available in a Miniature Thin Profile Surface Mount Package

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A1383 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	SIP3,.03,50	Reach Compliance Code：	compliant
风险等级：	5.84	Is Samacsys：	N
JESD-609代码：	e3	安装特点：	THROUGH HOLE MOUNT
端子数量：	3	最大工作电流：	8 mA
最高工作温度：	150 °C	最低工作温度：	-40 °C
输出：	SINGLE-ENDED	输出电路类型：	SINGLE-ENDED
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	SIP3,.03,50
电源：	5 V	子类别：	Other Sensors
表面贴装：	NO	技术：	BICMOS
端子面层：	Matte Tin (Sn)	Base Number Matches：	1

A1383 数据手册

A1381, A1382,

A1383, and A1384

Programmable Linear Hall Effect Sensors with Analog Output

Available in a Miniature Thin Profile Surface Mount Package

For purposes of specification, the sensitivity drift due to package

Symmetry error, Sym_ERR(%), is measured and defined as:

hysteresis, ∆Sens_PKG, is defined as:

⎛

Sens_BPOS

Sens_BNEG

⎞

⎜

⎟

1–

Sym_ERR

100%

Sens_(25°C)2– Sens_(25°C)1

(12)

⎜

(8)

100%

∆Sens_PKG

⎝

⎠

Sens_(25°C)1

where Sens_Bxis as defined in equation 10, and B_POSand B_NEG

are positive and negative magnetic fields such that |B_POS| = |B_NEG|.

where Sens_(25°C)1is the programmed value of sensitivity at T_A

= 25°C, and Sens_(25°C)2is the value of sensitivity at T_A= 25°C,

after temperature cycling T_Aup to 150°C, down to –40°C, and

back to up 25°C.

Ratiometry Error The A138x devices feature ratiometric output.

This means that the quiescent voltage output, V_OUT(Q), magnetic

Linearity Sensitivity Error The 138x family is designed to

provide a linear output in response to a ramping applied magnetic

field. Consider two magnetic fields, B1 and B2. Ideally, the sen-

sitivity of a device is the same for both fields, for a given supply

voltage and temperature. Linearity error is present when there is a

difference between the sensitivities measured at B1 and B2.

sensitivity, Sens, and clamp voltage, V_CLP(HIGH)and V_CLP(LOW)

are proportional to the supply voltage, V_CC. In other words, when

the supply voltage increases or decreases by a certain percent-

age, each characteristic also increases or decreases by the same

percentage. Error is the difference between the measured change

in the supply voltage relative to 5 V, and the measured change in

each characteristic.

Linearity Error is calculated separately for the positive

(Lin_ERRPOS) and negative (Lin_ERRNEG) applied magnetic fields.

Linearity error (%) is measured and defined as:

The ratiometric error in quiescent voltage output, Rat_ERRVOUT(Q)

(%), for a given supply voltage, V_CC, is defined as:

⎛

⎜

⎝

Sens_BPOS2

Sens_BPOS1

⎞

⎜

⎟

1–

Lin_ERRPOS

100%

⎠

⎛

V_OUT(Q)(VCC)/ V_OUT(Q)(5V)

⎞

⎜

⎟

1–

Rat_ERRVOUT(Q)

100%

(13)

⎜

Sens_BNEG2

⎛

⎞

V_CC/ 5 V

⎝

⎠

⎜

⎟

1–

Lin_ERRNEG

(9)

⎜

⎝

⎟

Sens_BNEG1

⎠

The ratiometric error in magnetic sensitivity, Rat_ERRSens(%), for

a given supply voltage, V_CC, is defined as:

where:

|V_OUT(Bx)

–

OUT(Q)

(10)

Sens_Bx

⎛

Sens_(VCC)/ Sens_(5V)

⎞

B_x

⎜

⎟

1–

Rat_ERRSens

100%

(14)

⎜

V_CC/ 5 V

⎝

⎠

and B_POSxand B_NEGxare positive and negative magnetic fields,

with respect to the quiescent voltage output such that

The ratiometric error in the clamp voltages, Rat_ERRCLP(%), for a

given supply voltage, V_CC, is defined as:

Lin_ERRmax(|Lin_ERRPOS| , |Lin_ERRNEG| )

(11)

⎛

V_CLP(VCC)/ V_CLP(5V)

⎞

⎜

⎟

1–

Rat_ERRCLP

100%

(15)

Symmetry Sensitivity Error The magnetic sensitivity of an

⎜

V_CC/ 5 V

⎝

⎠

A138x device is constant for any two applied magnetic fields of

equal magnitude and opposite polarities.

where V_CLPis either V_CLP(HIGH)or V_CLP(LOW)

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

1...6 7 8910 11 12...18

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