TPS65310A-Q1
www.ti.com
SLVSC15 –MAY 2013
High Voltage Power Management IC for Automotive Safety Applications
Check for Samples: TPS65310A-Q1
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FEATURES
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Independent Voltage Monitoring
Undervoltage (UV) Detection and Overvoltage
(OV) Protection
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Qualified for Automotive Applications
AEC-Q100 Test Guidance with the Following
Results:
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Short Circuit, Overcurrent and Thermal
Protection on Buck Controller, Gate Drive,
Buck Converters, BOOST Converter and
Linear Regulator Outputs
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Device Temperature Grade 1: –40°C to
125°C Ambient Operating Temperature
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Device HBM ESD Classification Level H1B
Device CDM ESD Classification Level C3B
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Serial Peripheral Interface (SPI) for Control
and Diagnostic
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Input Voltage Range: 4 V to 40 V, Transients
up to 60 V; 80 V When Using External P-
channel Metal Oxide Semiconductor (PMOS)
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Integrated Window Watchdog (WD)
Reference Voltage Output
High-Side (HS) Driver for Use with External
Field Effect Transistor (FET), Light-Emitting
Diode (LED) Driver
Single Output Synchronous Buck Controller
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Peak Gate Drive Current 0.6 A
490-kHz Fixed Switching Frequency
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Input for External Temperature Sensor,
Integrated Circuit (IC) Shutdown at TA < –40°C
Pseudo Random Frequency Hopping
Spread Spectrum or Triangular Mode
Thermally Enhanced PowerPAD™ Package
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Dual Synchronous Buck Converter
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56-pin QFN (RVJ)
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Designed for Output Currents up to 2 A
Out of Phase Switching
APPLICATIONS
Switching Frequency: 0.98 MHz
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Multi-Rail DC Power Distribution Systems
Safety Critical Automotive Applications
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Adjustable 350-mA Linear Regulator
Adjustable Asynchronous Boost Converter
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Advanced Driver Assistance Systems
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1 A Integrated Switch
Switching Frequency: 0.98 MHz
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Soft Start Feature for all Regulator Outputs
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 its 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 pre-regulation combined with two buck and one boost
converter for post regulation. A further integrated low drop out (LDO) rounds up the power supply concept and
offers a flexible system design with five total 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.
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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.
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PowerPAD is a trademark of Texas Instruments.
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.
Copyright © 2013, Texas Instruments Incorporated