A31316 datasheet(11/61 Pages) ALLEGRO

11 / 61 page

3D Magnetic Position Sensor IC

A31316

Allegro MicroSystems

955 Perimeter Road

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

www.allegromicro.com

[1] Based on receiver design.

[2] Tick times under 0.5 µs are available, but not guaranteed.

[3] Parameter not measured at final test. Determined by design and characterization.

INTERFACE CHARACTERISTICS: Valid for all electrical and device requirements ranges and |BIN| ≥ 300 G,

unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

SENT Ground Current [3]

IGND

Average current through (signal) ground line over

one message

–

SENT Supply Ripple Current [3]

ISUP-RIPPLE

Peak-to-peak variation in supply current

consumption over one message at frequencies up

to fC = 30 kHz measured as described for IGND

–

SENT Fall Time [3]

tFALL

From VOUT = 3.8 V to VOUT = 1.1 V, IGND ≤ 20 mA,

3 µs tick time

–

6.5

µs

From VOUT = 3.8 V to VOUT = 1.1 V,

20 mA ≤ IGND ≤ 50 mA, 3 µs tick time

–

µs

SENT Rise Time [3]

tRISE

From VOUT = 1.1 V to VOUT = 3.8 V, 3 µs tick time

–

µs

SENT Edge Jitter [3]

ΔtFALL

Edge to edge jitter with static environment for any

pulse prior, 3 µs tick time

–

0.1

µs

SENT Nibble Jitter [3]

ΔtNIBBLE

Variation of maximum nibble time compared to the

expected time derived from the calibration pulse,

3 µs tick time

–

0.3

µs

PWM INTERFACE SPECIFICATION

PWM Carrier Frequency

fPWM

See Table 10

125

–

160000

PWM Carrier Frequency

Tolerance

TOL(fPWM)

–8

–

PWM Resolution

resPWM

Based of fPWM

–

bit

Output Jitter, PWM

PWMJIT

fPWM ≥ 2 kHz, see Table 104 for LSB definition

–1

–

LSB

fPWM < 2 kHz, see Table 104 for LSB definition

–3

–

LSB

PWM Duty Cycle

DPWM

–

PWM Output Saturation Voltage

VSAT(LOW)

RPULLUP ≥ 1.2 kΩ

–

0.40

PWM Output Load Resistance

RL(PULLUP)

3.3

–

kΩ

A31316 датащи(PDF) 11 Page - Allegro MicroSystems

A31316 датащи(HTML) 11 Page - Allegro MicroSystems

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

датащи скачать

ссылки URL