L6228 STMicroelectronics, L6228 Datasheet - Page 6

• Manufacturer Part Number: L6228
• Description: DMOS DRIVER FOR BIPOLAR STEPPER MOTOR
• Manufacturer: STMicroelectronics

L6228
ELECTRICAL CHARACTERISTICS (continued)
(T
6/26
Switching Characteristics
t
PWM Comparator and Monostable
I
t
t
t
t
Symbol
D(OFF)EN
CLK(min)L
RCLK(MIN
RCA,
V
V
t
D(ON)EN
CLK(min)
amb
V
t
t
t
ON(MIN)
t
V
t
t
BLANK
S(MIN)
H(MIN)
R(MIN)
th(OFF)
th(HYS)
t
t
PROP
th(ON)
DCLK
f
t
RISE
FALL
f
CLK
t
offset
OFF
DT
CP
H
)
I
RCB
= 25°C, V
Turn-on Input Threshold
Turn-off Input Threshold
Input Threshold Hysteresis
Enable to Output Turn-on Delay
Time
Enable to Output Turn-off Delay
Time
Output Rise Time
Output Fall Time
Clock to Output Delay Time
Minimum Clock Time
Minimum Clock Time
Clock Frequency
Minimum Set-up Time
Minimum Hold Time
Minimum Reset Time
Minimum Reset to Clock Delay
Time
Dead Time Protection
Charge Pump Frequency
Source Current at pins RC
RC
Offset Voltage on Sense
Comparator
Turn OFF Propagation Delay
Internal Blanking Time on
SENSE pins
Minimum On Time
PWM Recirculation Time
B
(8)
(8)
(11)
s
= 48V, unless otherwise specified)
Parameter
(8)
(8)
(11)
(10)
(10)
(11)
(11)
A
(9)
and
(12)
I
I
I
I
I
T
V
V
R
R
LOAD
LOAD
LOAD
LOAD
LOAD
j
RCA
REFA,
OFF
OFF
= -25°C to 125°C
= V
= 20K
= 100K
=1.4A, Resistive Load
=1.4A, Resistive Load
=1.4A, Resistive Load
=1.4A, Resistive Load
=1.4A, Resistive Load
V
REFB
Test Conditions
RCB
= 2.5V
= 0.5V
C
C
OFF
OFF
(7)
= 1nF
= 1nF
0.25
Min
500
500
0.8
0.5
3.5
40
40
Typ
650
800
500
1.8
1.3
0.5
0.6
5.5
2.5
±5
13
61
2
1
1
1000
Max
250
250
100
800
2.0
1
1
1
1
1
1
1
3
MHz
Unit
KHz
mA
mV
ns
ns
µs
µs
µs
µs
µs
µs
µs
µs
ns
µs
µs
µs
µs
ns
ns
V
V
V