Datasheet > A1334LLETR-60-T

A1334LLETR-60-T

更新时间： 2022-02-26 10:21:26

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描述
Precision Hall-Effect Angle Sensor IC

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A1334LLETR-60-T 数据手册

Precision Hall-Effect Angle Sensor IC

A1334

OPERATING CHARACTERISTICS: valid over the full operating voltage and ambient temperature ranges, unless otherwise

noted

Characteristics

Electrical Characteristics

Supply Voltage

Symbol

Test Conditions

Min.

Typ.¹

Max.

Unit²

V_CC

I_CC

4.5

–

14.5

Supply Current

Each die, A1334 sampling angles

7.5

Maximum V_CC, dV/dt = 1V/ms, T_A= 25°C,

A1334 sampling enabled

V_UVLOHI

–

4.5

–

Undervoltage Lockout Threshold

Voltage³

Maximum V_CC, dV/dt = 1V/ms, T_A= 25°C,

A1334 sampling disabled

V_UVLOLOW

3.5

VCC Low Flag Threshold^4,5

Supply Zener Clamp Voltage

Reverse-Battery Current

Power-On Time^6,8

V_UVLOTH

V_ZSUP

I_RCC

4.35

26.5

–5

4.5

–

4.75

–

I_CC= I_CC+ 3 mA, T_A= 25°C

V_RCC= –18 V, T_A= 25°C

–

µs

t_PO

–

300

2.85

–

Bypass Pin Output Voltage⁷

SPI Interface Speciﬁcations

Digital Input High Voltage⁸

Digital Input Low Voltage⁸

SPI Output High Voltage

SPI Output Low Voltage

SPI Clock Frequency⁸

V_BYP

T_A= 25°C, C_BYP= 0.1 µF

2.45

3.4

¯¯¯¯

MOSIx, SCLKx, CSx pins

V_IH

V_IL

2.8

–

3.63

0.5

¯¯¯¯

MOSIx, SCLKx, CSx pins

V_OH

V_OL

f_SCLK

t_SPI

MISOx pins, C_L= 50 pF, T_A= 25°C

MISOx pins, C_L= 50 pF

2.81

–

3.3

0.3

–

3.79

0.5

0.1

5.8

MHz

kHz

SPI Frame Rate⁸

–

588

¯¯¯¯

Time from CSx going low to SCLKx falling

edge

Chip Select to First SCLK Edge⁸

t_CS

–

Data Output Valid Time⁸

MOSI Setup Time⁸

MOSI Hold Time⁸

t_DAV

t_SU

Data output valid after SCLKx falling edge

Input setup time before SCLKx rising edge

Input hold time after SCLKx rising edge

–

t_HD

–

¯¯¯¯

Hold SCLKx high time before CSx rising

edge

SCLK to CS Hold Time⁸

t_CHD

C_L

–

Load Capacitance⁸

Magnetic Characteristics

Magnetic Field^9,10

Missing Magnet Flag

Angle Characteristics

Output¹¹

Loading on digital output (MISOx) pin

Range of input field

300

–

1000

–

MAGM

100

RES_ANGLE

–

10.7

–

bit

bits

µs

Effective Resolution¹²

B = 300 G, T_A= 25ºC, ORATE = 0

High RPM mode ¹⁸

28.33

Low RPM mode, AVG = 011 (varies

with AVG mode, refer to the appendix

Programming Reference)

Angle Refresh Rate^13,14

Response Time

t_ANG

–

200

–

µs

t_RESPONSE

High RPM mode (see figure 4) ¹⁸

Continued on the next page…

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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