L6470 Electrical characteristics
Doc ID 16737 Rev 2 15/64
t
cpwu
Charge pump power-on and wake-up time
Power bridges disabled,
C
p
= 10nF,
C
boot
= 220nF
650 μs
Internal voltage regulator
V
REG
Voltage regulator output voltage 2.9 3 3.2 V
I
REG
Voltage regulator output current 40 mA
V
REG, drop
Voltage regulator output voltage drop I
REG
= 40mA 50 mV
I
REG,STBY
Voltage regulator standby output current 10 mA
Integrated analog to digital converter
N
ADC
Analog to digital converter resolution 5 bit
V
ADC,ref
Analog to digital converter reference voltage V
REG
V
f
S
Analog to digital converter sampling
frequency
f
PWM
kHz
1. Accuracy depends on oscillator frequency accuracy.
2. Tested at 25°C in a restricted range and guaranteed by characterization.
3. Rise and fall time depends on motor supply voltage value. Refer to SR
out
values in order to evaluate the actual rise and fall
time.
4. Not valid for STBY/RST
pin which have internal pull-down resistor.
5. Not valid for SW and CS pins which have internal pull-up resistor
6. FLAG
, BUSY and SYNC open drain outputs included.
7. See Figure 16– SPI timings diagram for details.
Table 4. Electrical characteristics (continued)
Symbol Parameter Test condition Min Typ Max Unit