L6470PD datasheet(14/70 Pages) STMICROELECTRONICS

14 / 70 page

Electrical characteristics

L6470

14/70

Doc ID16737 Rev 5

tholCS

Chip select hold time (7)

tdisCS

Deselect time (7)

800

tsetSDI

Data input setup time (7)

tholSDI

Data input hold time (7)

tenSDO

Data output enable time (7)

tdisSDO

Data output disable time (7)

tvSDO

Data output valid time (7)

tholSDO

Data output hold time (7)

Switch input (SW)

RPUSW

SW input pull-up resistance

SW = GND

110

PWM modulators

fPWM

Programmable PWM frequency (1)

fosc = 16 MHz

2.8

62.5

kHz

fosc = 32 MHz

5.6

125

NPWM

PWM resolution

bit

Stall detection

ISTALL,MAX

Maximum programmable stall threshold

STALL_TH = '1111111'

ISTALL,MIN

Minimum programmable stall threshold

STALL_TH = '0000000'

31.2

ISTALL,RES

Programmable stall threshold resolution

31.2

Overcurrent protection

IOCD,MAX

Maximum programmable overcurrent

detection threshold

OCD_TH = '1111'

IOCD,MIN

Minimum programmable overcurrent

detection threshold

OCD_TH = '0000'

0.37

IOCD,RES

Programmable overcurrent detection

threshold resolution

0.37

tOCD,Flag

OCD to flag signal delay time

dIout/dt = 350 A/µs

650

1000

tOCD,SD

OCD to shutdown delay time

dIout/dt = 350 A/µs

POW_SR = '10'

600

Standby

IqSTBY

Quiescent motor supply current in standby

conditions

VS = 8 V

µA

VS = 36 V

tSTBY,min

Minimum standby time

μs

tlogicwu

Logic power-on and wake-up time

µs

Table 5.

Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min. Typ.

Max. Unit

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