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Aftermarket Head Unit

Описание:
This solution is designed to be an automotive off-battery front end power supply for infotainment systems. It was created using a one stage power system meeting high voltage input needs and providing low voltage for multi output rails for different load needs. The system also provides transient and reverse polarity protection. The Wide Vin Buck stage is working at 2.1Mhz to avoid AM band and has superior EMI performance with an differential EMI filter to support CISPER 25.
Возможности:

Wide Vin 2.1MHz Integrated , Low Iq Buck Converter Boost for 5V CAN supply Transient and Reverse Polarity Protection and EMI filter added The system disconnet the second stage power and keep 3.3V sustained when Input votlage lower than 4.5V

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Описание:
This reference design details a display power circuit which generates a bipolar voltage rail for source drivers and additional supplies for gate drivers. Charge pumps are used to generate the voltage supply for gate drivers, which makes this design easy to implement. By using only one dc-dc converter to generate four voltage rails and therefore minimizing the amount of inductances, this circuit allows small design size.

Возможности:

Complete power supply solution for TFT LCD display bias 4 output voltage rails Low quiescent current less than 0.5 mA Load regulation less than 2% on all rails Automotive qualified components

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Описание:
This reference design implements a video over LVDS solution for automotive infotainment applications.It highlights the support of multi-touch with haptic feedback, LCD backlight control, and ambient light sensing, without the introduction of dedicated support lines back to the host processor. This design is implemented using two boards. The main electronics board, SAT0059 is where the deserializer, microProcessor, backlight controller, haptics drivers and power supply are located. The LCD interface board, SAT0096, is a physical and electrical interface to a specific LCD panel. It connects to the SAT0059 through a Samtec board to board connector and provides connection points for the LCD panel, touchscreen, backlight connections and haptic drivers. The SAT0096 is designed for a Microtips UMSH-8596MD-20T display. If a different display is to be used, a new LCD Interface board would likely need to be designed.

Возможности:

Wide input voltage range: off battery 4.5V to 40V power supply All video and support communications through LVDS o Supporting 24 bit RGB Video o 400Kbps back channel I2C connection for multi-touch input Haptic feedback State of art I2C/SPI interface LED backlighting controller with dimming ratio of >10,000:1, switching frequency ~2.2MHz, hybrid dimming and saftey and fault tolerances/functions Backlight adjustable to inputs o Ambient light sensor o Thermistor inputs on the LCD and the back light to enable thermal protection

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  • Топология платы
  • Тестирование
Описание:
The TIDA-00573 reference design provides a Class D based amplifier solution that allows it to be evaluated in the form factor of a typical Class AB amplifier. The design is optimized to mitigate thermals associated with audio amplifiers and to minimize switching noises associated with Class D amplifiers. This design is comprised of two parts. The 1st highlights the audio amplifier module while the 2nd highlights the circuitry needed to incorporate it into a base board. The pair of boards allows stand-alone performance testing of the design.

Возможности:

Able to withstand load-dump conditions Size/Space optimized design CISPR-25 tested EMI Able to withstand Start/Stop operation down to 5.6V

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Описание:
TIDA-00746 is a 17W system-optimized SMPS design for automotive infotainment processor power. The design has been tested for and passed CISPR25 Class 5 conducted EMI limits. All buck converters used in this design is switching above AM band (>1.85MHz). The design is divided into four major blocks: Front end protection: Various protections have been implemented, such as those against positive and negative pulses (ISO7630 Pulse 1, 2a, 3a/b) through TVS, reverse terminal protection through innovative smart diode (LM74610), and battery disconnect switch with OVP protection (PFET). EMI filter: a common mode and a differential filter for conducted EMI suppression. Low EMI front end DC/DC converter: LM53635-Q1 is a switching, synchronous 3.5A buck regulator and is used as a front end DC/DC converter in this design. This 2.1 MHz part is automotive optimized and has low EMI. Apart from the spread spectrum option, the device comes in an automotive-qualified Hotrod(TM) QFN package with wettable flanks, which reduces parasitic inductance and resistance while increasing efficiency, minimizing switch node ringing, and dramatically lowering EMI. Downstream POL buck converters such as, LM26420-Q1 (Integrated dual buck), TPS57114-Q1, and TPS57112-Q1: all POL switchers used in the design switch above AM band. For high frequency noise-sensitive rails, a ferrite bead filter is used.
Возможности:

Wide-Vin front end power supply for 10W-17W automotive Off-battery operation with reverse battery protection Series fault protection FET with OVP at input Passed CISPR25 Class 5 conducted EMI test All devices have an AEC-Q100 qualified version available Switching frequency: above AM band (>1.85 MHz) for all the converters used

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Описание:
The TIDA-00783.1 reference design is a triple output wide Vin power module design. It provides 3.3V, 1.8V and 1.2V output, at 6W total power. The layout is optimized for space constrained applications.

Возможности:

LMZ36002 wide Vin power module with integrated inductor, 4.5V to 60V input, 2A output LMZ20502 nano module with integrated inductor 4.5V to 40V wide input range Power module design with minimum external components 400 sq. mm compact solution size This circuit board is tested, and the design files and test report are included

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Описание:
The TIDA-00801 reference design is a full off-battery to point of load power solution supporting input voltages as low as 2V. It uses the Boost plus Buck DC/DC regulator TPS43330A-Q1 supporting an input voltage range of 2V to 40V and allowing the design to support not only start-stop but also cold crank conditions. The TPS659039-Q1 integrated power management IC supplies point of load power to an application processor such as the TDA2x/DRA7xx. Also included is a 5V/4A load switch, the TPS22965-Q1, and a linear regulator TPS51200-Q1 for DDR termination supply. Benefits: Supports cold and warm cranking, supports modern processors sequencing needs without further logic, supports peripherals and is a small form-factor, low system-cost solution.

Возможности:

Supports Power- and Sequencing requirements of modern Processors Supports Cranking Profiles Supports Peripheral Supplies (I/Os, Memory) Small form factor Cost-effective

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The TIDA-00804 reference design is a low-cost discrete power solution for the i.MX6Q quad core application processor. All the DCDC regulators operate at frequencies above the AM radio broadcast band to avoid interference with the radio and to provide a small solution size due to smaller filter components. The first stage DC-DC converter can support a voltage input range of 6V to 42V, allowing the design to support start-stop operation as well as load dump. The second stage DC-DC converters provide all the necessary power rails to power the i.MX6Q. No power sequencer is necessary for this design. The PWB is a 4 layer board with 2 oz. copper to provide good power dissipation at 85 C ambient.

Возможности:

Wide input voltage range: off battery 6V to 42V power supply to support start-stop system and load dump The DC-DC regulators all operate above 1.8 MHz to avoid AM band interference Very small form factor: 75mm x 58mm circuit board dimensions No power sequencer necessary Less than 5% ripple on all power rails

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Описание:
An inductive sensing based incremental encoder knob design can provide a robust and low-cost interface for control inputs. It can reliably operate in environments which have dirt, moisture, or oil which would pose issues for alternate sensing technologies. This solution requires no magnets.
Возможности:

High reliability, contactless, encoder implementation suitable for dirty, wet, and other challanging environments Scalable to support multiples of 4 positions/rotation Minimal MCU requirements No permanent magnets required; operates effectively even with magnetic or electrical enviromental interference

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Описание:
TIDA-00987 is a reference design for Automotive Media Ports that require data transfer. This design has the capability to support USB 2.0 and USB 3.0 data through a 15W USB Type-C™ port. Customers can accelerate their media port systems by taking advantage of a complete reference design comprised of analog AEC-Q100 qualified integrated circuits (ICs) that are CISPR 25 Class 5 tested. This design creates a robust, flexible solution which allows the system to charge both USB Type-C and legacy devices all within a small 1in x 2.5in solution.
Возможности:

The LM74610-Q1 smart diode emulates an ideal diode rectifier and protects downstream devices in the case of reverse polarity. The TPS25810-Q1 and TPS254900-Q1 provide negotiation over the CC1/CC2 and D+/D- lines respectively to enable charging of either USB Type-C or legacy downstream devices. Small solution size based on typical media interface board dimensions of 2.5in x 1in. The components in this system provide Short-to-Battery protection and load dump protection against input transients up to 40V. By combining the HD3SS3212 with the TPD4E05U06-Q1 and optimized layout, this design demonstrates SuperSpeed compatibility with the USB Type-C connector without signal degradation. The automotive grade LM53635-Q1 optimizes the power supply through its unique Hotrod package and reduces parasitics in order to mitigate EMI without interfering with AM or FM band frequencies.

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Описание:
This dynamic Near Field Communication (NFC) tag design outlines the required components, layout considerations, and provides firmware examples to implement NFC into applications such as Bluetooth® and Wi-Fi® pairing, equipment configuration and diagnostics, or as a general purpose NFC data interface. The documentation, hardware, and example code provided allows the designer to quickly implement NFC functionality with an MSP430 or other MCU of choice.

Возможности:

NFC Tag Type 4B compliant design ISO14443B compliant 13.56-MHz RF interface supports up to 848 kbps for fast data transfer Code examples to write and read NDEF messages to internal SRAM 3kB SRAM for a large variety NDEF message types Interrupt register and output pin to indicate NDEF read or write completion for further processing This design is tested and includes firmware, hardware design, and a user's guide

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