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DRV110EVM

更新时间： 2024-09-09 12:52:43
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德州仪器 - TI 控制器
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16页 925K
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POWER SAVING SOLENOID CONTROLLER WITH INTEGRATED SUPPLY REGULATION

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DRV110  
www.ti.com  
SLVSBA8A –MARCH 2012–REVISED JANUARY 2013  
POWER SAVING SOLENOID CONTROLLER WITH INTEGRATED SUPPLY REGULATION  
Check for Samples: DRV110  
1
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.  
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.  
1
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.  
Copyright © 2012–2013, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
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