Texas Instruments TPS65310A-Q1

Description

The TPS65310A-Q1 device is a power-management unit, meeting the requirements of digital signal processor (DSP)-controlled automotive systems (for example, Advanced Driver Assistance Systems). With the integration of commonly used features, the TPS65310A-Q1 device significantly reduces board space and system costs.

The device includes one high-voltage buck controller for preregulation combined with two buck and one boost converters for postregulation. A further integrated low-dropout regulator (LDO) rounds up the power supply concept and offers a flexible system design with five independent voltage rails. The device offers a low power state (LPM0 with all rails off) to reduce current consumption in case the system is constantly connected to the battery line. All outputs are protected against overload and overtemperature.

An external PMOS protection feature makes the device capable of sustaining voltage transients up to 80 V. This external PMOS can also be used in safety-critical applications to protect the system in case one of the rails shows a malfunction (undervoltage, overvoltage, or overcurrent).

Internal soft start ensures controlled start-up for all supplies. Each power supply output has adjustable output voltage based on the external resistor network settings.

Features

• Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following Results: Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature
• Device HBM ESD Classification Level H1B
• Device CDM ESD Classification Level C3B
• Input Voltage Range: 4 V to 40 V, Transients up to 60 V; 80 V When Using External P-channel Metal Oxide Semiconductor (PMOS)
• Single Output Synchronous Buck Controller
• Peak Gate Drive Current 0.6 A
• 490-kHz Fixed Switching Frequency
• Pseudo-Random Frequency-Hopping Spread Spectrum or Triangular Mode
• Dual Synchronous Buck Converter
• Designed for Output Currents up to 2 A
• Out-of-Phase Switching
• Switching Frequency: 0.98 MHz
• Adjustable 350-mA Linear Regulator
• Adjustable Asynchronous Boost Converter
• 1-A Integrated Switch
• Switching Frequency: 0.98 MHz
• Soft-Start Feature for All Regulator Outputs
• Independent Voltage Monitoring
• Undervoltage (UV) Detection and Overvoltage (OV) Protection
• Short-Circuit, Overcurrent, and Thermal Protection on Buck Controller, Gate Drive, Buck Converters,Boost Converter, and Linear Regulator Outputs
• Serial Peripheral Interface (SPI) for Control and Diagnostic
• Integrated Window Watchdog (WD)
• Reference Voltage Output
• High-Side (HS) Driver for Use With External Field Effect Transistor (FET), Light-Emitting Diode (LED) Driver
• Input for External Temperature Sensor, Integrated Circuit (IC) Shutdown at TA < –40°C
• Thermally Enhanced Package
• 56-Pin QFN (RWE)

Typical applications

• Safety-Critical Automotive ApplicationsAdvanced Driver Assistance Systems
• Advanced Driver Assistance Systems
• Multiple Rail DC Power Distribution Systems

More information

• Datasheet
• IC product information