ACS70310 datasheet(5/27 Pages) ALLEGRO

5 / 27 page

Very High Precision, Programmable Linear Hall-Effect Sensor IC

with Reverse Battery Protection and High-Bandwidth (240 kHz)

Analog Output for Core-Based Current Sensing

ACS70310

Allegro MicroSystems

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

ELECTRICAL CHARACTERISTICS

Supply Voltage

VCC

4.5

5.5

Supply Current

ICC

No load on VOUT; VCC @ 4.5, 5, and 5.5 V

–

Power-On Reset Voltage

VPOR(H)

TA = 25°C, VCC rising

3.7

3.9

4.3

VPOR(L)

TA = 25°C, VCC falling

3.2

3.4

3.75

Power-On Reset Hysteresis

VPOR(HYS)

TA = 25°C

440

500

560

Power-On Reset Release Time

tPOR(R)

TA = 25°C, VCC rising

–

µs

Power-On Delay Time

tPO

TA = 25°C, CBYPASS = open, CL = 1 nF

–

µs

Temperature Compensation

Power-On Time

tTC

TA = 150°C, CBYPASS = open, CL = 1 nF,

Sens = 1 and 10 mV/G

–

146

–

µs

Supply Zener Clamp Voltage

TA = 25°C, ICC = 30 mA

–

OUTPUT CHARACTERISTICS

DC Output Resistance

ROUT

TA = 25°C

Output Load Resistance [1]

VOUT to GND or VCC

4.7

–

kΩ

Output Load Capacitance

VOUT to GND

–

Output Voltage Saturation

VOUT(SATH)

TA = 25°C, RL = 10 kΩ to GND,

Bias = 400 G

4.75

4.8

–

VOUT(SATL)

TA = 25°C, RL = 10 kΩ to VCC,

Bias = 400 G

–

0.2

0.25

Output Voltage Clamp

VCLP(HIGH)

TA = 25°C, RL = 10 kΩ to GND,

Bias = 400 G

4.65

4.7

4.75

VCLP(LOW)

TA = 25°C, RL = 10 kΩ to VCC,

Bias = 400 G

0.25

0.3

0.36

Output Voltage with Broken GND

VBRK_DN

TA = 25°C, RL = 10 kΩ to GND, Pin 3 = NC

100

200

VBRK_UP

TA = 25°C, RL = 10 kΩ to VCC (5 V), Pin 3 = NC

4.8

4.9

Overvoltage Detection [2]

VOVD(EN)

TA = 25°C

–

6.5

–

VOVD(DIS)

TA = 25°C

–

Noise

VIN

TA = 25°C, CL = 1 nF, Sens = 5 mV/G

–

1.4

–

mG/

√(Hz)

VON

TA = 25°C, Sens = 5 mV/G

–

3.5

–

mVRMS

Propagation Delay Time

tpd

TA = 25°C, 0.5 Fullscale = 1 V/(t < 750 ns),

CL = 0 nF, no RL

–

1.2

1.65

µs

Response Time

tRESPONSE

TA = 25°C, 0.5 Fullscale = 1 V/(t < 750 ns),

CL = 0 nF, no RL

–

2.1

µs

Rise Time

TA = 25°C, 0.5 Fullscale = 1 V/(t < 750 ns),

CL = 0 nF, no RL

–

1.9

–

µs

Output Slew Rate

TA = 25°C, 0.5 Fullscale = 1 V/(t < 750 ns),

CL = 0 nF, no RL

410

480

550

V/ms

Internal Bandwidth

BWi

Small signal –3 dB, CL = 1 nF, TA = 25°C;

Sens = 10 mV/G

–

240

–

kHz

Continued on the next page…

OPERATING CHARACTERISTICS: Valid over full operating temperature range of TA, CBYPASS = 0.1 µF, and VCC = 5 V,

unless otherwise specified

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