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DRV104-DRV104PWP-DRV104PWPG4-DRV104PWPR
PWM High-Side Driver (1.5A) for Solenoids, Coils, Valves, Heaters, and Lamps
DRV104SBVS036B – SEPTEMBER 2003 – REVISED MARCH 2006
DESCRIPTIONThe DRV104 is a DMOS, high-side power switch employing
a pulse-width modulated (PWM) output. Its rugged design is
optimized for driving electromechanical devices such as
valves, solenoids, relays, actuators, and positioners. It is also
ideal for driving thermal devices such as heaters, coolers,
and lamps. PWM operation conserves power and reduces
heat rise, resulting in higher reliability. In addition, adjustable
PWM allows fine control of the power delivered to the load.
Time from dc-to-PWM output and oscillator frequency are
externally adjustable.
Separate supply pins for the circuit and driver transistor allow
the output to operate on a different supply than the rest of the
circuit.
The DRV104 can be set to provide a strong initial solenoid
closure, automatically switching to a soft hold mode for
power savings. The duty cycle can be controlled by a
resistor, analog voltage, or a digital-to-analog (D/A) converter
for versatility. The Status OK Flag pin indicates when thermal
shutdown or over-current occurs.
The DRV104 is specified for –40°C to +85°C at its case. The
exposed lead frame must be soldered to the circuit board.
FEATURES HIGH OUTPUT DRIVE: 1.2A WIDE SUPPLY RANGE: +8V to +32V COMPLETE FUNCTION:
PWM Output
Adjustable Internal Oscillator: 500Hz to 100kHz
Digitally Controlled Input
Adjustable Delay and Duty Cycle
Over-Current Indicator Flag FULLY PROTECTED:
Thermal Shutdown with Indicator Flag
Internal Current Limit PACKAGE: HTSSOP-14 Surface-Mount PowerPAD™
1.2A PWM High-Side Driver
for Solenoids, Coils, V alves, Heaters, and LampsInput
Off
Status OK
Flag +VS
Coil
APPLICATIONS ELECTROMECHANICAL DRIVERS:
Solenoids, Valves, Positioners, Actuators, Relays,
Power Contactor Coils, Heaters, and Lamps FLUID AND GAS FLOW SYSTEMS FACTORY AUTOMATION PART HANDLERS AND SORTERS PHOTOGRAPHIC PROCESSING ENVIRONMENTAL MONITORING AND HVAC THERMOELECTRIC COOLERS MOTOR SPEED CONTROLS SOLENOID PROTECTORS MEDICAL ANALYZERSPlease be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
