3-Phase Sinusoidal Motor Controller

A4923

4

Allegro MicroSystems, LLC

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

Supply and Reference

VBB Voltage Range

10

–

32

V

VBB Supply Current

–

18

22

mA

VREG3.3 Voltage

I = 0 to -5 mA

2.9

3.3

3.5

V

VREG7.2 Voltage

Gate Drive Supply, I = 0 to -24 mA

6.8

7.2

7.6

V

VREG7.2 Current Limit

–30

–

–

mA

Logic Inputs

STARTn, DIR, BRAKE

Logic Input Low Level

0

–

0.8

V

Logic Input High Level

2.0

–

5.5

V

Logic Input Hysteresis

–

350

–

kHz

Logic Input Current

Pull-up to internal 3.3V

34

47

60

kΩ

–

36

–

µA

–

–70

–

µA

Logic Outputs

FGO

Output Saturation Voltage

I = -7 mA

–

0.14

0.21

V

Output Leakage

V = 3.3 V

–

–

1

µA

Halls

Hall Input Current

–1

0

1

µA

Common Mode Input Range

0.2

–

3.4

V

AC Input Voltage Range

50

–

–

mVp-p

Hall Digital Filter Time

–

1.6

–

µs

Gate Drive

PWM Carrier Frequency

19

20

21

kHz

Current Limit Input Threshold

Threshold on LSS terminal

216

240

256

mV

Gate Drive Output Voltage

6.0

6.9

–

V

Gate Drive Source Current

-21

-30

-39

mA

Gate Drive Sink Current

50

70

90

mA

Gate Pulldown, Passive

–

300

–

kΩ

Dead Time

1460

–

1880

µs

Fixed Off-time

21.0

–

27.5

µs

LSS Digital Filter Time

720

–

880

µs

Protection

Thermal Shutdown Temperature

–

130

–

°C

Thermal Shutdown Hysteresis

D

–

10

–

°C

VBB UVLO Threshold

–

7.0

7.85

V

VBB UVLO Hysteresis

0.5

0.75

1.0

V

NOTES:

1.

Typical Data is for design information only.

2.

Negative current is defined as coming out of (sourcing) the specified device terminal.

3.

Specifications over operating temperature range are assured by design and characterization.