 English |
|
|
|
|
|
|
|
| DRV102_15 Datasheet, PDF (6/27 Pages) Texas Instruments – PWM SOLENOID/VALVE DRIVER | |||
| |||
| ◁ |
TYPICAL PERFORMANCE CURVES (CONT)
At TC = +25°C and VS = +24V, unless otherwise noted.
FLAG OPERATION
OVER-CURRENT LIMIT
(VS = +60V, CD = 220pF, RPWM = 25.5kâ¦, Load = 350mH || 47â¦)
60V
Onset of current limit where
VOUT begins to drop
40V
20V
0
Flag only set during
4V
constant output mode
or âONâ portion of
2V
PWM mode
0
50µs/div
FLAG OPERATION
UNDER-CURRENT
(VS = +60V, CD = 120pF, RPWM = 25.5kâ¦, No Load)
60V
40V
20V
Flag only on during constant output
0
or âONâ portion of PWM mode
4V
2V
0
Constant Output
PWM Mode
50µs/div
DC TO PWM MODE
DRIVING INDUCTIVE LOAD
(VS = +60V, CD = 120pF, RPWM = 30.1kâ¦, Load = 350mH)
60V
40V
20V
0
1A
0.5A
0
Inductive load ramp current
50µs/div
TYPICAL SOLENOID CURRENT WAVEFORM
(VS = +60V, CD = 0.1µF, RPWM = 30.1kâ¦, Load = 350mH)
4V
0
1A
0.5A
0
Solenoid
Motion
Period
PWM Mode
Solenoid Closure
25ms/div
5V
2.5V
0
3A
2A
1A
0
CURRENT LIMIT REPSONSE
(Load = 1â¦, 2k⦠pull-up to +5V on Flag pin)
10µs/div
OSCILLATOR FREQUENCY vs TEMPERATURE
24.2
24.0
23.8
VS = +8V
23.6
23.4
â75 â55 â35
VS = +60V
â15 5 25 45 65 85
Temperature (°C)
105 125
6
DRV102
www.ti.com
SBVS009B
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese