L6472(2012) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

L6472
(Rev.:2012)

dSPIN fully integrated microstepping motor driver with motion engine and SPI

STMicroelectronics 

L6472

3

Electrical characteristics

Electrical characteristics

VSA = VSB = 36 V; VDD = 3.3 V; internal 3 V regulator; TJ = 25 °C, unless otherwise

specified.

Table 5.

Symbol

Electrical characteristics

Parameter

Test condition

Min. Typ. Max. Unit

General

VSthOn

VSthOff

VSthHyst

VS UVLO turn-on threshold

VS UVLO turn-off threshold

VS UVLO threshold

hysteresis

7.5 8.2 8.9 V

6.6 7.2 7.8 V

0.7 1 1.3 V

Iq

Tj(WRN)

Tj(SD)

Quiescent motor supply

current

Internal oscillator selected;

VREG = 3.3V ext; CP floating

Thermal warning temperature

Thermal shutdown

temperature

0.5 0.65 mA

130

°C

160

°C

Charge pump

Vpump

Voltage swing for charge

pump oscillator

fpump,min

Minimum charge pump

oscillator frequency (1)

fpump,max

Maximum charge pump

oscillator frequency (1)

Iboot Average boot current

fsw,A = fsw,B = 15.6kHz

POW_SR = ‘10’

10

V

660

kHz

800

kHz

1.1 1.4 mA

Output DMOS transistor

RDS(on)

High-side switch on-

resistance

Low-side switch on-

resistance

IDSS Leakage current

tr

Rise time (3)

Tj = 25°C, Iout = 3A

Tj = 125°C, (2) Iout = 3A

Tj = 25°C, Iout = 3A

Tj = 125°C, (2) Iout = 3A

OUT = VS

OUT = GND

POW_SR = '00', Iout = +1A

POW_SR = '00', Iout = -1A

POW_SR = ‘11’, Iout = ±1A

POW_SR = ‘10’, Iout = ±1A

POW_SR = ‘01’, Iout = ±1A

0.37

0.51

Ω

0.18

0.23

3.1

mA

-0.3

100

80

100

ns

200

300

Doc ID 022729 Rev 1

11/69

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