Datasheet > A1340

A1340

更新时间： 2022-02-26 13:25:23

品牌	Logo	应用领域
急速微 - ALLEGRO		可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
42页	2003K
描述
High Precision Programmable Linear Hall Effect Sensor IC with EEPROM, Analog Output, and Advanced Output Linearization

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A1340 数据手册

High Precision Programmable Linear Hall Effect Sensor IC

with EEPROM, Analog Output, and Advanced Output Linearization

A1340

ELECTRICAL CHARACTERISTICS: valid through full operating temperature range, T_A, and supply voltage, V_CC

_BYPASS= 10 nF, unless otherwise speciﬁed

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit¹

General Electrical Characteristics

Supply Voltage

V_CC

I_CC

4.5

–

5.5

–

Supply Current

Supply Zener Clamp Voltage

Hall Chopping Frequency⁴

V_ZSUPPLYT_A= 25°C; I_CC= I_CC(max) + 3 mA

f_CT_A= 25°C

–

128

–

kHz

V_{CC(UV_low)}T_A= 25°C, UVLO falling

V_{CC(UV_high)}T_A= 25°C, UVLO rising

3.5

3.7

4.2

4.45

Undervoltage Lockout Threshold²

Output Electrical Characteristics

Output Saturation Voltage

–

V_SAT(H)

V_SAT(L)

R_OUT= 10 kΩ to GND, V_CC– V_OUT,T_A= 25°C

R_OUT= 10 kΩ to V_CC, T_A= 25°C

–

0.2

0.3

–

I_LIMIT(SNK)VOUT = V_CC(max), T_A= 25°C

I_LIMIT(SRC)VOUT = GND, T_A= 25°C

V_npp

–4

–

mVpp

Output Current Limit

–1.6

Output Noise Peak to Peak³

Output Zener Clamp Voltage

Output Load Resistance⁴

Output Load Capacitance^4,5

–

V_ZOUT

R_LOAD

C_LOAD

T_A= 25°C

–

VOUT to VCC, VOUT to GND

VOUT to GND

BW = 3000 Hz

BW = 1500 Hz

BW = 375 Hz

–

kΩ

–

0.75

1.4

4.0

–

0.6

1.1

3.2

0.5

0.9

3.24

Power-On Time^4,6,7

Response Time^7,8

t_PO

–

BW = 3000 Hz

BW = 1500 Hz

BW = 375 Hz

–

t_RESP

–

¹1 G (gauss) = 0.1 mT (millitesla).

²See Protection Features section.

³Capacitor of 10 nF connected between output and ground.

⁴Determined by design.

⁵Clarity of a Read Acknowledge message from the device to the controller will be affected by the amount of capacitance and wire inductance on the device output. In such

case, it is recommended to slow down the communication speed, and to lower the receiver threshold for reading digital Manchester signal to 1 V.

⁶Deﬁned as time from V_CCreaching V_CC(min) to V_OUTreaching 90% of its steady state. See Deﬁnitions of Terms section.

⁷Parameter is veriﬁed by lab characterization with a limited amount of samples.

⁸Deﬁned time from step in gauss of applied magnetic ﬁeld to V_OUTstep reaching 90% of its steady state. See Deﬁnitions of Terms section.

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

1 2 3 456 7 8...42

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