Datasheet

Electrical characteristics L6470
14/73 DocID16737 Rev 7
t
enSDO
Data output enable time
(7)
38 ns
t
disSDO
Data output disable time
(7)
47 ns
t
vSDO
Data output valid time
(7)
57 ns
t
holSDO
Data output hold time
(7)
37 ns
Switch input (SW)
R
PUSW
SW input pull-up resistance SW = GND 60 85 110 k
PWM modulators
f
PWM
Programmable PWM frequency
(1)
f
osc
= 16 MHz 2.8 62.5
kHz
f
osc
= 32 MHz 5.6 125
N
PWM
PWM resolution 8 bit
Stall detection
I
STALL,MAX
Maximum programmable stall threshold STALL_TH = '1111111' 4 A
I
STALL,MIN
Minimum programmable stall threshold STALL_TH = '0000000'
31.2
5
mA
I
STALL,RES
Programmable stall threshold resolution
31.2
5
mA
Overcurrent protection
I
OCD,MAX
Maximum programmable overcurrent
detection threshold
OCD_TH = '1111' 6 A
I
OCD,MIN
Minimum programmable overcurrent
detection threshold
OCD_TH = '0000'
0.37
5
A
I
OCD,RES
Programmable overcurrent detection
threshold resolution
0.37
5
A
t
OCD,Flag
OCD to flag signal delay time dI
out
/dt = 350 A/µs 650 1000 ns
t
OCD,SD
OCD to shutdown delay time
dI
out
/dt = 350 A/µs
POW_SR = '10'
600 ns
Standby
I
qSTBY
Quiescent motor supply current in
standby conditions
V
S
= 8 V 26 34
µA
V
S
= 36 V 30 36
t
STBY,min
Minimum standby time 10 s
t
logicwu
Logic power-on and wake-up time 38 45 µs
t
cpwu
Charge pump power-on and wake-up time
Power bridges disabled,
C
p
= 10 nF, C
boot
= 220 nF
650 s
Internal voltage regulator
V
REG
Voltage regulator output voltage 2.9 3 3.2 V
I
REG
Voltage regulator output current 40 mA
Table 5. Electrical characteristics (continued)
Symbol Parameter Test condition Min. Typ. Max. Unit