EVAL6208N Datasheet, PDF (7/27 Pages) STMicroelectronics – DMOS DRIVER FOR BIPOLAR STEPPER MOTOR

L6208
ELECTRICAL CHARACTERISTICS (continued)
(T_amb = 25°C, V_s = 48V, unless otherwise specified)
Symbol
Parameter
Test Conditions
t_OFF PWM Recirculation Time
R_OFF = 20KΩ; C_OFF = 1nF
R_OFF = 100KΩ; C_OFF = 1nF
I_BIAS Input Bias Current at pins VREF_A
and VREF_B
Over Current Protection
Min Typ Max Unit
13
µs
61
µs
10
µA
I_SOVER Input Supply Overcurrent
Protection Threshold
T_j = -25°C to 125°C ⁽⁷⁾
4
5.6
7.1
A
R_OPDR Open Drain ON Resistance
I = 4mA
40
60
Ω
t_OCD(ON) OCD Turn-on Delay Time (13) I = 4mA; C_EN < 100pF
200
ns
t_OCD(OFF) OCD Turn-off Delay Time (13) I = 4mA; C_EN < 100pF
100
ns
(7) Tested at 25°C in a restricted range and guaranteed by characterization.
(8) See Fig. 1.
(9) See Fig. 2.
(10) See Fig. 3.
(11) See Fig. 4.
(12) Measured applying a voltage of 1V to pin SENSE and a voltage drop from 2V to 0V to pin VREF.
(13) See Fig. 5.
Figure 1. Switching Characteristic Definition
EN
V_th(ON)
V_th(OFF)
I_OUT
90%
10%
D01IN1316
t_D(OFF)EN
t_FALL
t
t_D(ON)EN
t
t_RISE
7/27