System-Level Reference Design for 30W ADAS System With Required Automotive Protections


Design files


PMP10652 is a System optimized (CISPR 25 Class 3) 30W design for Surround View ADAS system.

The design has various protections such as Load dump through TVS (ISO pulse testing), Reverse Voltage (Innovative Smart diode with very low Iq), Battery Disconnect Switch with OVP protection (PFET) and is EMI optimized to meet Conductive EMI limits of CISPR25 Class3 (overall) and Class5 upto 30MHz Range.

Input voltage range is between 4.5V to 30V with OVP at 20V and hence will operate in most Cold Cranking conditions.

LM74610 is used for Battery reverse protection which utilizes a charge pump to drive an N-channel FET to provide a resistive path for the bypass current to flow. LM53603Q1 is used as front end DC/DC Buck converter which is 2.2MHz switching, Synchronous rectified Wide Vin Buck Converter which can take transient upto 42V. TPS57114Q1 is used to provide power to the cores and it is a high current 2,2MHz switching buck converter. LM26420 is a dual 2.2MHz switching buck converter which is used for generating other required supplies.

LM3880 sequencer is used for all the power up and power down sequencing requirements.

  • Designed for most Cold Crank and Start Stop conditions
  • In compliance with the ISO pulse test / CISPR 25 Class 3 conducted emissions standard, passing both AM & FM radio band tests
  • All devices Switching frequency at 2.1MHz (AM Band Avoidance)
  • Reverse Protection through Smart diode
  • Series Fault protection FET with OVP
  • Power up and Power Down sequencing through integrated sequencer
Output voltage options PMP10652.1 PMP10652.2 PMP10652.3 PMP10652.4 PMP10652.5 PMP10652.6 PMP10652.7
Vin (Min) (V) 4.8 4.8 3.3 3.3 3.3 3.3 3.3
Vin (Max) (V) 30 30 3.3 3.3 3.3 3.3 3.3
Vout (Nom) (V) 3.3 3.3 1.2 1.2 1.8 1.5 5
Iout (Max) (A) 3 3 4 4 .6 .6 .14
Output Power (W) 9.9 9.9 4.8 4.8 1.08 .9 .7
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Topology Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous Buck- Synchronous Other
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUAE3.PDF (2730 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

LM26420-Q1Dual 2 A, automotive-qualified, high-efficiency synchronous DC/DC converter

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

LM53603-Q1Automotive 3.5-V to 36-V, 3-A synchronous step-down converter

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS60150140mA, 5V Charge Pump in 2x2 SON

Data sheet: PDF | HTML
Ideal diode/ORing controllers

LM74610-Q10.48-V to 42-V, zero IQ automotive ideal diode controller

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS717150-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF | HTML

LM38803 Rail Simple Power Sequencer with Fixed Time Delay

Data sheet: PDF
Shunt voltage references

TLVH431A1% low-voltage wide-operating current adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP10652 Test Results Aug. 10, 2015

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