DRV120 Datasheet, PDF (1/16 Pages) Texas Instruments – POWER SAVING CURRENT CONTROLLED SOLENOID DRIVER

DRV120
www.ti.com
SLVSBG3A – JUNE 2012 – REVISED AUGUST 2012
POWER SAVING CURRENT CONTROLLED SOLENOID DRIVER
Check for Samples: DRV120
FEATURES
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• Integrated MOSFET With PWM to Control
Solenoid Current
– Integrated Sense Resistor for Regulating
Solenoid Current
• Fast Ramp-Up of Solenoid Current to
Guarantee Activation
• Solenoid Current is Reduced in Hold Mode for
Lower Power and Thermal Dissipation
• 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.
• Internal Supply Voltage Regulation
– Up to 28-V External Supply
• Protection
– Thermal Shutdown
– Under Voltage Lockout (UVLO)
– Maximum Ramp Time
– Optional STATUS Output
• Operating Temperature Range: -40ºC to 105ºC
• 8-Pin and 14-Pin TSSOP Package Options
APPLICATIONS
• Electromechanical Driver: Solenoids, Valves,
Relays
• White Goods, Solar, Transportation
DESCRIPTION
The DRV120 is a PWM current driver for solenoids. It is designed to regulate the current with a well controlled
waveform to guarantee activation and to reduce power dissipation at the same time. The solenoid current is
ramped up fast to ensure opening of the valve or relay. After the initial ramping, 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.
DRV120 can operate from external 6-V to 28-V supply.
PACKAGE ⁽²⁾
(TSSOP-8) - PW
(TSSOP-14) - PW
ORDERING INFORMATION⁽¹⁾
ORDERABLE PART
NUMBER
Reel of 2000
DRV120PWR
Reel of 2000
DRV120APWR
TOP-SIDE
MARKING
120
120A
(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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Please 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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated