DRV110
www.ti.com
SLVSBA8 –MARCH 2012
POWER SAVING SOLENOID CONTROLLER WITH INTEGRATED SUPPLY REGULATION
Check for Samples: DRV110
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FEATURES
•
Drives an External MOSFET With PWM to
Control Solenoid Current
–
External Pull-Up Resistor to Solenoid
Supply Voltage
–
External Sense Resistor for Regulating
Solenoid Current
•
Protection
–
–
–
–
Thermal Shutdown
•
•
•
Fast Ramp-Up of Solenoid Current to
Guarantee Activation
Under Voltage Lockout (UVLO)
Maximum Ramp Time
Solenoid Current is Reduced in Hold Mode for
Lower Power and Thermal Dissipation
Optional STATUS Output
•
•
Operating Temperature Range: -40ºC to 105ºC
8-Pin and 14-Pin TSSOP Package Options
Ramp Peak Current, Keep Time at Peak
Current, Hold Current and PWM Clock
Frequency Can Be Set Externally. They Can
Also Be Operated at Nominal Values Without
External Components.
APPLICATIONS
•
Electromechanical Driver: Solenoids, Valves,
Relays
•
Internal Supply Voltage Regulation
•
White Goods, Solar, Transportation
–
15-V Nominal MOSFET Gate Drive Voltage
DESCRIPTION
The DRV110 is a PWM current controller for solenoids. It is designed to regulate the current with a well
controlled waveform to reduce power dissipation. The solenoid current is ramped up fast to ensure opening of
the valve or relay. After initial ramping the solenoid current is kept at peak value to ensure the correct operation,
after which it is reduced to a lower hold level in order to avoid thermal problems and reduce power dissipation.
The peak current duration is set with an external capacitor. The current ramp peak and hold levels, as well as
PWM frequency can independently be set with external resistors. External setting resistors can also be omitted, if
the default values for the corresponding parameters are suitable for the application.
The DRV110 limits its own supply at VIN to 15 V which is also the gate drive voltage of an external switching
device. For example, a MOSFET that is driving the solenoid load. If a lower gate drive voltage is required, an
external supply of at least 6 V can be used.
The DRV110 is available in 8-pin and 14-pin TSSOP package options.
ORDERING INFORMATION(1)
ORDERABLE PART
NUMBER
TOP-SIDE
MARKING
PACKAGE(2)
(TSSOP-8) - PW
(TSSOP-14) - PW
Reel of 2000
Reel of 2000
DRV110PWR
110
DRV110APWR
110A
(1) For the most current packaging and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the
Copyright © 2012, Texas Instruments Incorporated
formative or design phase of development. Characteristic data and
other specifications are design goals. Texas Instruments reserves
the right to change or discontinue these products without notice.