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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

FEATURES

• Drives an External MOSFET With PWM to – External Pull-Up Resistor to Solenoid

Control Solenoid Current Supply Voltage

– External Sense Resistor for Regulating • Protection

Solenoid Current

– Thermal Shutdown

• Fast Ramp-Up of Solenoid Current to

– Under Voltage Lockout (UVLO)

Guarantee Activation

– Maximum Ramp Time

• Solenoid Current is Reduced in Hold Mode for

– Optional STATUS Output

Lower Power and Thermal Dissipation

• Operating Temperature Range: -40ºC to 105ºC

• Ramp Peak Current, Keep Time at Peak

• 8-Pin and 14-Pin TSSOP Package Options

Current, Hold Current and PWM Clock

Frequency Can Be Set Externally. They Can

APPLICATIONS

Also Be Operated at Nominal Values Without

• Electromechanical Driver: Solenoids, Valves,

External Components.

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 TOP-SIDE

PACKAGE

(2)

NUMBER MARKING

(TSSOP-8) - PW Reel of 2000 DRV110PWR 110

(TSSOP-14) - PW Reel of 2000 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.

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.

Summary of content (16 pages)

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DRV110 www.ti.
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DRV110 SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 www.ti.com TYPICAL APPLICATION Figure 1. Default Configuration With 8-Pin TSSOP Option Figure 2.
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DRV110 www.ti.
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DRV110 SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 www.ti.com Table 1.
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DRV110 www.ti.com SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 ABSOLUTE MAXIMUM RATINGS (1) (2) VIN VALUE UNIT –0.3 to 20 V Voltage range on EN, STATUS, PEAK, HOLD, OSC, SENSE, KEEP –0.3 to 7 V Voltage range on OUT –0.
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DRV110 SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 www.ti.com ELECTRICAL CHARACTERISTICS VIN = 14 V, TA = -40°C to 105°C, over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY IQ Standby current EN = 0, VIN = 14 V, bypass deactivated 200 250 Quiescent current EN = 1, VIN = 14 V, bypass deactivated 360 570 Internally regulated supply EN = 0, IVIN = 2 mA, bypass activated 10.
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DRV110 www.ti.com SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 FUNCTIONAL DESCRIPTION DRV110 controls the current through the solenoid as shown in Figure 3. Activation starts when EN pin voltage is pulled high either by an external driver or internal pull-up. In the beginning of activation, DRV110 allows the load current to ramp up to the peak value IPEAK and it regulates it at the peak value for the time, tKEEP, before reducing it to IHOLD.
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DRV110 SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 I HOLD = 1W RSENSE × www.ti.com 150mA × 66.67kW ;66.67kW < RHOLD < 333kW RHOLD (3) Figure 4.
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DRV110 www.ti.com SLVSBA8A – MARCH 2012 – REVISED JANUARY 2013 Frequency of the internal PWM clock signal, PWMCLK, that triggers each OUT pin ON-cycle can be adjusted by external resistor, ROSC, connected between OSC and GND. Frequency as a function of resistor value is shown in Figure 5. Default frequency is used when OSC is connected to GND directly. PWM frequency as a function of external fixed adjustment resistor value (greater than 66.67 kΩ) is given below. 60kHz fPWM = × 66.67kW ;66.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DRV110APWR TSSOP PW 14 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 DRV110PWR TSSOP PW 8 2000 330.0 12.4 7.0 3.6 1.6 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) DRV110APWR TSSOP PW 14 2000 367.0 367.0 35.0 DRV110PWR TSSOP PW 8 2000 367.0 367.0 35.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.