A4964 datasheet(13/92 Pages) ALLEGRO

13 / 92 page

Sensorless Sinusoidal Drive BLDC Controller

A4964

Allegro MicroSystems, LLC

955 Perimeter Road

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

www.allegromicro.com

ELECTRICAL CHARACTERISTICS (continued): Valid at TJ = –40°C to 150°C, VBB = 5.5 to 50 V, unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

CURRENT LIMITING

Sense Amplifier Maximum Current

Limit Threshold

VMIT

Default power-up value; VMIT = VCSP – VCSM

–

200

–

Programmable range; VMIT = VCSP – VCSM

–

200

Current Limit Threshold Error [6]

EILIM

VIL = 15, MIT = 0

–5%

–

+5%

%FS

Current Limit Blank Time

tOCB

Default power-up value, OBT = 7

1.71

1.80

1.89

µs

Programmable range

–

6.6

µs

DATA ACQUISITION SYSTEM

Supply Voltage (VBRG):

Measurement Range

VVM

–

50.4

Supply Voltage (VBRG):

Measurement Accuracy

EVM

VBRG ≤ 30 V

–

±0.5

–

Average Supply Current

Measurement: Sense Voltage Range

VVS

–

200

Average Supply Current

Measurement: Sense Voltage

Accuracy

EVS

–

±1

–

Temperature Measurement Range

–50

–

190

°C

Temperature Measurement Accuracy

ETJ

–

±5

–

°C

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