L6223 STMicroelectronics, L6223 Datasheet - Page 5

• Manufacturer Part Number: L6223
• Description: DMOS PROGRAMMABLE HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER
• Manufacturer: STMicroelectronics

ELECTRICAL CHARACTERISTICS (Continued)
SWITCHING TIMING
PROGRAMMING TIMING
Note 1) Upper DMOS turn ON delay when the signal is applied at the input comparator (point A in Fig. 4).
Note 2) Internal clock pulse is generated only if IN1...IN4 stay Low for almost 0.2 s. This delay avoids undesirable programmings.
Figure 1: Output leakage I
t2, t4
t1, t3
t
t1
t2
t3
t4
t5
dPWM
Symbol
Fall/Rise Time (IN1, 2, 3, 4)
Input-Output Delay
(IN1, 2, 3, 4)
Close Loop PWM
Control Delay
Loading Time
Protection Time
Data Set-up
Data Hold
Setting Time
Parameter
OL
Test Circuit
R
Pure Resistive Load to V
R
Pure Resistive Load to V
(Fig. 4) Note 1
(Fig. 6)
(Fig. 6) Note 2
(Fig. 6)
(Fig. 6)
(Fig. 6)
(load)
(load)
Test conditions
= 39
= 39
Figure 2a: Source Output DMOS R
(Fig. 5)
(Fig. 5)
Circuit
S
S
Min
1.7
0.2
0
1.6
200
Typ
DS(ON)
Max
250
700
1
Test
L6223
Unit
ns
ns
ns
ns
s
s
s
s
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