TPS65310A-Q1 Datasheet, PDF (1/68 Pages) Texas Instruments – High-Voltage Power-Management IC For Automotive Safety Applications

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TPS65310A-Q1
SLVSC15E – MAY 2013 – REVISED OCTOBER 2014
TPS65310A-Q1 High-Voltage Power-Management IC For Automotive Safety Applications
1 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,
1
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 T_A < –40°C
• Thermally Enhanced Package
– 56-Pin QFN (RWE)
2 Applications
• Multiple Rail DC Power Distribution Systems
• Safety-Critical Automotive Applications
– Advanced Driver Assistance Systems
3 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65310A-Q1
VQFNP (56)
8.00 mm x 8.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
VBAT
IRQ
VBuck1 I/O supply
RESN
PRESN
WD Trigger
Wake Up Input
SPI Interface
Reference Voltage
HS PWM Input
VINPROT
Protection FET
VIN
Battery
Sense
VIO
RESET
Watchdog
Wake
SPI
Reference
voltage
+
Comparator
High Side
LED Driver
Buck
Controller
Buck
Converter
Buck
Converter
Boost
Converter
Linear
Regulator
VBuck1
VBuck2
VBuck3
VBuck1
VBooster
VLDO
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.