
TPIC7218-Q1 Series
Automotive Catalog Power Controller and Sensor Interface
Manufacturer: Texas Instruments
Catalog
Automotive Catalog Power Controller and Sensor Interface
Key Features
• Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following Results:Device Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4PWM Low-Side Drivers4 PWM Low-Side Driver OutputsCurrent LimitationThermal Protection: TJ= 185°C (Minimum)Open-Load DetectionEnergy Capability: 30 mJ at TJ= 150°CClamp Voltage: 40 VLow RDSon: 0.3 Ω (Maximum) at TJ= 150°CDigital Low-Side Drivers4 Digital Low-Side Driver OutputsCurrent LimitationThermal Protection: TJ= 185°C (Minimum)Open-Load DetectionEnergy Capability: 50 mJ at TJ= 150°CClamp Voltage: 40 VLow RDSon: 0.2 Ω (Maximum) at TJ= 150°CDual High-Side Power DriversDirect Input ControlPWM CapabilityLoad Dump (overvoltage) DetectionProgrammable overcurrent detectionLoad Leakage DetectionProgrammable short-circuit ProtectionFault detection over SPIWheel-Speed Sensor InterfaceCompatible with Intelligent and Active Wheel-Speed Sensors4 High-Side Switches With Short-CircuitProtection4 Low-Side Switches With Short-CircuitProtection2 High Voltage Low-Side Output Drivers4 Digital Outputs to Indicate the SpeedIntegrated Data Decoder for Intelligent Wheel-Speed SensorsOpen-Drain Warning Lamp Drivers2 High Voltage DriversThermal Protection With HysteresisCurrent LimitationTJ= 185°C (Minimum)RDSon: 4 Ω at TJ= 150°CClamp Voltage: 40 VOther FeaturesK-LINE Transceiver3.3-V or 5-V Compatible Digital IOInternal 3.3-V RegulatorInternal Charge Pump1 Low-Voltage Open-Drain Warning LampDriverFull Duplex SPI InterfaceWatchdog Input With Open-Drain FaultReporting for SafetyPb-Free ASICCompliant With CISPR 25 NB Class 5 forConducted and Radiated EmissionsAPPLICATIONSAnti-lock Braking Systems (ABS)Electronic Stability Control Systems (ESC)All other trademarks are the property of their respective ownersQualified for Automotive ApplicationsAEC-Q100 Qualified with the Following Results:Device Temperature Grade 1: –40°C to 125°CAmbient Operating Temperature RangeDevice HBM ESD Classification Level 2Device CDM ESD Classification Level C4PWM Low-Side Drivers4 PWM Low-Side Driver OutputsCurrent LimitationThermal Protection: TJ= 185°C (Minimum)Open-Load DetectionEnergy Capability: 30 mJ at TJ= 150°CClamp Voltage: 40 VLow RDSon: 0.3 Ω (Maximum) at TJ= 150°CDigital Low-Side Drivers4 Digital Low-Side Driver OutputsCurrent LimitationThermal Protection: TJ= 185°C (Minimum)Open-Load DetectionEnergy Capability: 50 mJ at TJ= 150°CClamp Voltage: 40 VLow RDSon: 0.2 Ω (Maximum) at TJ= 150°CDual High-Side Power DriversDirect Input ControlPWM CapabilityLoad Dump (overvoltage) DetectionProgrammable overcurrent detectionLoad Leakage DetectionProgrammable short-circuit ProtectionFault detection over SPIWheel-Speed Sensor InterfaceCompatible with Intelligent and Active Wheel-Speed Sensors4 High-Side Switches With Short-CircuitProtection4 Low-Side Switches With Short-CircuitProtection2 High Voltage Low-Side Output Drivers4 Digital Outputs to Indicate the SpeedIntegrated Data Decoder for Intelligent Wheel-Speed SensorsOpen-Drain Warning Lamp Drivers2 High Voltage DriversThermal Protection With HysteresisCurrent LimitationTJ= 185°C (Minimum)RDSon: 4 Ω at TJ= 150°CClamp Voltage: 40 VOther FeaturesK-LINE Transceiver3.3-V or 5-V Compatible Digital IOInternal 3.3-V RegulatorInternal Charge Pump1 Low-Voltage Open-Drain Warning LampDriverFull Duplex SPI InterfaceWatchdog Input With Open-Drain FaultReporting for SafetyPb-Free ASICCompliant With CISPR 25 NB Class 5 forConducted and Radiated EmissionsAPPLICATIONSAnti-lock Braking Systems (ABS)Electronic Stability Control Systems (ESC)All other trademarks are the property of their respective owners
Description
AI
The TPIC7218-Q1 device integrates in single package several functions needed in ABS and ESC electronic control units (ECU). This integration coupled with the minimization of the external components saves valuable ECU board space.
The TPIC7218-Q1 device is an antilock braking controller capable of directly driving eight solenoid valves with internal high-current low-side drivers. Low-side drivers configured for digital control do not require external voltage clamps. The TPIC7218-Q1 device has gate drive capability for two high-side N-Channel MOSFETs that can be used to drive a pump motor and power to all solenoids. The TPIC7218-Q1 device provides a fault-tolerant interface for both Intelligent and Active wheel-speed sensors to an external microprocessor. The TPIC7218-Q1 device can be used with either 3.3- or 5-V microprocessors and uses a standard SPI (Serial-Peripheral Interface).
The TPIC7218-Q1 device has two internal open-drain warning lamp drivers that can be pulled up to battery voltage, as well as one low-voltage driver. An internal state machine monitors a watchdog input and reports faults on a warning-lamp pin and SPI register. A K-Line transceiver is also included. A multitude of safety and fault monitoring functionality supervise both system and TPIC7218-Q1 circuits. Faults must be polled and reset over SPI. The TPIC7218-Q1 device is designed for use in harsh automotive environments, capable of withstanding high operating temperatures and electrically noisy signals and power. Short-to-ground, short-to-battery, and open-load conditions are tolerated and monitored. The TPIC7218-Q1 device also exhibits outstanding Electro-Magnetic Compatibility (EMC) performance.
The TPIC7218-Q1 device integrates in single package several functions needed in ABS and ESC electronic control units (ECU). This integration coupled with the minimization of the external components saves valuable ECU board space.
The TPIC7218-Q1 device is an antilock braking controller capable of directly driving eight solenoid valves with internal high-current low-side drivers. Low-side drivers configured for digital control do not require external voltage clamps. The TPIC7218-Q1 device has gate drive capability for two high-side N-Channel MOSFETs that can be used to drive a pump motor and power to all solenoids. The TPIC7218-Q1 device provides a fault-tolerant interface for both Intelligent and Active wheel-speed sensors to an external microprocessor. The TPIC7218-Q1 device can be used with either 3.3- or 5-V microprocessors and uses a standard SPI (Serial-Peripheral Interface).
The TPIC7218-Q1 device has two internal open-drain warning lamp drivers that can be pulled up to battery voltage, as well as one low-voltage driver. An internal state machine monitors a watchdog input and reports faults on a warning-lamp pin and SPI register. A K-Line transceiver is also included. A multitude of safety and fault monitoring functionality supervise both system and TPIC7218-Q1 circuits. Faults must be polled and reset over SPI. The TPIC7218-Q1 device is designed for use in harsh automotive environments, capable of withstanding high operating temperatures and electrically noisy signals and power. Short-to-ground, short-to-battery, and open-load conditions are tolerated and monitored. The TPIC7218-Q1 device also exhibits outstanding Electro-Magnetic Compatibility (EMC) performance.