DRV101 Datasheet, PDF (1/19 Pages) Burr-Brown (TI) – PWM SOLENOID/VALVE DRIVER

®
DRV101
DRV101
DRV101
PWM SOLENOID/VALVE DRIVER
FEATURES
DESCRIPTION
q HIGH OUTPUT DRIVE: 2.3A
q WIDE SUPPLY RANGE: +9V to +60V
q COMPLETE FUNCTION
PWM Output
Internal 24kHz Oscillator
Digital Control Input
Adjustable Delay and Duty Cycle
Over/Under Current Indicator
q FULLY PROTECTED
Thermal Shutdown with Indicator
Internal Current Limit
q PACKAGES: 7-Lead TO-220 and 7-Lead
Surface-Mount DDPAK
APPLICATIONS
q ELECTROMECHANICAL DRIVER:
Solenoids Positioners
Actuators High Power Relays/Contactors
Valves
Clutch/Brake
q FLUID AND GAS FLOW SYSTEMS
q INDUSTRIAL CONTROL
q FACTORY AUTOMATION
q PART HANDLERS
q PHOTOGRAPHIC PROCESSING
q ELECTRICAL HEATERS
q MOTOR SPEED CONTROL
q SOLENOID/COIL PROTECTORS
q MEDICAL ANALYZERS
The DRV101 is a low-side power switch employing a
pulse-width modulated (PWM) output. Its rugged de-
sign is optimized for driving electromechanical de-
vices such as valves, solenoids, relays, actuators, and
positioners. The DRV101 is also ideal for driving
thermal devices such as heaters and lamps. PWM
operation conserves power and reduces heat rise, re-
sulting in higher reliability. In addition, adjustable
PWM allows fine control of the power delivered to the
load. Time from dc output to PWM output is exter-
nally adjustable.
The DRV101 can be set to provide a strong initial
closure, automatically switching to a “soft” hold mode
for power savings. Duty cycle can be controlled by a
resistor, analog voltage, or digital-to-analog converter
for versatility. A flag output indicates thermal shut-
down and over/under current limit. A wide supply
range allows use with a variety of actuators.
The DRV101 is available in 7-lead staggered TO-220
package and a 7-lead surface-mount DDPAK plastic
power package. It is specified over the extended indus-
trial temperature range, –40°C to +85°C.
Flag V_S (+9V to +60V)
7
5
Thermal Shutdown
Over/Under Current
6
Load
24kHz
Out
Oscillator
Input
1
On _{(TTL-Compatible)}
Off
Delay
2
PWM
3
Gnd
4
(electrically
connected to
tab)
Delay
Adjust
Duty Cycle Adjust
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©_{1998 Burr-Brown Corporation}
PDS-1411B
Printed in U.S.A. August, 1998