2962 Просмотр технического описания (PDF) - Allegro MicroSystems
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2962 Datasheet PDF : 8 Pages
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2962
DUAL PWM
SOLENOID/MOTOR DRIVER
APPLICATIONS INFORMATION
RESISTOR RH VALUE
AS A FUNCTION OF HYSTERESIS
RESISTOR RT VALUE
AS A FUNCTION OF PEAK LOAD CURRENT
25
25
20
VREF= 5 V
15
10
5
20
VREF = 5V
RS = 0.1Ω
15
10
5
H=2H5=H%2=01%5%
H=10%
H=5%
0
0
0
20
40
60
80
100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
HYSTERESIS, H, IN PERCENT
LOAD CURRENT, IMAX , IN AMPERES
Dwg. No. A-12,417
Dwg. No. A-12,416
RH AND RT DETERMINE HYSTERESIS AND PEAK CURRENT
NOTE: Each of the drivers includes an internal logic delay to prevent
potentially destructive crossover currents within the driver during phase
changes. However, never simultaneously enable both inputs in the full-
bridge configurations: A destructive short-circuit to ground will result.
www.allegromicro.com
Dwg. No. D-1004
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