EVAL6470H Datasheet, PDF (11/70 Pages) STMicroelectronics – dSPIN fully integrated microstepping motor driver with motion engine and SPI

L6470
3
Electrical characteristics
Electrical characteristics
V_SA = V_SB = 36 V; V_DD = 3.3 V; internal 3 V regulator; T_J = 25 °C, unless otherwise
specified.
Table 5. Electrical characteristics
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
General
V_SthOn
V_SthOff
V_SthHyst
V_S UVLO turn-on threshold
V_S UVLO turn-off threshold
V_S UVLO threshold hysteresis
I_q
Quiescent motor supply current
T_j(WRN)
T_j(SD)
Thermal warning temperature
Thermal shutdown temperature
Charge pump
V_pump
f_pump,min
Voltage swing for charge pump oscillator
Minimum charge pump oscillator frequency
(1)
7.5 8.2 8.9 V
6.6 7.2 7.8 V
0.7 1 1.3 V
Internal oscillator selected;
VREG = 3.3 V ext; CP
floating
0.5 0.65 mA
130
°C
160
°C
10
V
660
kHz
f_pump,max
Maximum charge pump oscillator frequency
(1)
800
kHz
I_boot
Average boot current
Output DMOS transistor
R_DS(on) High-side switch on-resistance
R_DS(on) Low-side switch on-resistance
I_DSS
Leakage current
t_r
Rise time ⁽³⁾
f_sw,A = f_sw,B = 15.6 kHz
POW_SR = '10'
1.1 1.4 mA
T_j = 25 °C, I_out = 3 A
T_j = 125 °C, ⁽²⁾ I_out = 3 A
T_j = 25 °C, I_out = 3 A
T_j = 125 °C, ⁽²⁾ I_out = 3 A
OUT = V_S
OUT = GND
0.37
0.51
Ω
0.18
0.23
3.1
mA
-0.3
POW_SR = '00', I_out = +1 A
100
POW_SR = '00', I_out = -1 A
80
POW_SR = '11', I_out = ±1 A
100
ns
POW_SR = '10', I_lout = ±1 A
200
POW_SR = '01', I_out = ±1 A
300
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