DRV120 Series

28V, 0.25A single channel relay low side driver with current regulation

Catalog

28V, 0.25A single channel relay low side driver with current regulation

Part	Fault Protection	Interface	Number of Outputs	Switch Type	Output Configuration	Ratio - Input:Output [custom]	Mounting Type	Supplier Device Package	Voltage - Load [Max]	Voltage - Load [Min]	Features	Package / Case [custom]	Package / Case [custom]	Package / Case	Input Type	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Utilized IC / Part	Function	Supplied Contents	Type
Texas Instruments DRV120APWR	Over Temperature UVLO	On/Off	1	Relay Solenoid Driver	Low Side	1:1	Surface Mount	14-TSSOP	26 V	6 V	Internal PWM Status Flag	0.173 "	4.4 mm	14-TSSOP	Non-Inverting	105 °C	-40 °C	N-Channel
Texas Instruments DRV120EVM																			DRV120	Solenoid Control	Board(s)	Power Management
Texas Instruments DRV120PWR	Over Temperature UVLO	On/Off	1	Relay Solenoid Driver	Low Side	1:1	Surface Mount	8-TSSOP	26 V	6 V	Internal PWM Status Flag	0.173 "	4.4 mm	8-TSSOP	Non-Inverting	105 °C	-40 °C	N-Channel

Catalog

28V, 0.25A single channel relay low side driver with current regulation

Key Features

• Integrated MOSFET With PWM to Control Solenoid CurrentIntegrated Sense Resistor for Regulating Solenoid CurrentFast Ramp-Up of Solenoid Current to Guarantee ActivationSolenoid Current is Reduced in Hold Mode for Lower Power and Thermal DissipationPeak 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 RegulationUp to 28-V External SupplyProtectionThermal ShutdownUndervoltage Lockout (UVLO)Maximum Ramp TimeOptional STATUS OutputOperating Temperature Range: –40ºC to 105ºC8-Pin and 14-Pin TSSOP Package OptionsAll trademarks are the property of their respective owners.Integrated MOSFET With PWM to Control Solenoid CurrentIntegrated Sense Resistor for Regulating Solenoid CurrentFast Ramp-Up of Solenoid Current to Guarantee ActivationSolenoid Current is Reduced in Hold Mode for Lower Power and Thermal DissipationPeak 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 RegulationUp to 28-V External SupplyProtectionThermal ShutdownUndervoltage Lockout (UVLO)Maximum Ramp TimeOptional STATUS OutputOperating Temperature Range: –40ºC to 105ºC8-Pin and 14-Pin TSSOP Package OptionsAll trademarks are the property of their respective owners.

Description

The DRV120 device is a PWM current driver for solenoids. The device 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. The DRV120 can operate from an external 6-V to28-V supply. The DRV120 device is a PWM current driver for solenoids. The device 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. The DRV120 can operate from an external 6-V to28-V supply.