DRV104

· 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™

· 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 ANALYZERS

Supply Voltage V_S, V_PS1, V_PS2⁽²⁾ ...................................................... +40V
Input Voltage, Master, SYNC ......................................... 0.2V to +5.5V⁽³⁾
PWM Adjust Input .......................................................... 0.2V to +5.5V⁽³⁾
Delay Adjust Input ......................................................... 0.2V to +5.5V⁽³⁾
Frequency Adjust Input ................................................. 0.2V to +5.5V⁽³⁾
Status OK Flag and OUT ..................................................... 0.2V to VS⁽⁴⁾
Boot Voltage ............................................................................... V_S + 10V
Operating Temperature Range ...................................... 55°C to +125°C
Storage Temperature ..................................................... 65°C to +150°C
Junction Temperature .................................................................... +150°C
Lead Temperature (soldering, 10s) ............................................... +300°C

NOTES: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.
(2) See the Bypass section for discussion about operating near the maximum supply.
(3) Higher voltage may be applied if current is limited to 2mA.
(4) Status OK flag will internally current limit at about 10mA.

The 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. DRV104 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.