Power Solution for an Automotive Fuel Injector

(ACTIVE) PMP7966

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


Description

PMP7966 is a 4-phase boost converter rated for 52V output at 2.5A from an input voltage of 6V to 42V. This design uses LM5122 boost controllers at a switching frequency of 100 kHz each phase, resulting in 400 kHz input and output ripple. 680μF aluminum electrolytic capacitors are used at the output of each phase, providing hold-up to support large transient currents.

Features
  • 52V power supply designed for automotive fuel injector solenoids
  • 4-phase boost with 100kHz switching frequency but easier-to-filter 400kHz ripples
  • 6V to 42V input voltage range, ideal for 12V/24V automotive batteries
  • Output capacitors sized to provide the hold-up during large load transients

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP7966.1
(Output Voltage 1)
Vin (Min) (V)6
Vin (Max) (V)42
Vout (Nom) (V)52
Iout (Max) (A)2.5
Output Power (W)130
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Non Sync

TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CD4017B  CMOS Decade Counter with 10 Decoded Outputs  Specialty Logic  Sample & Buy Not Available
LM5122  3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability  Step-Up (Boost)  Sample & Buy View Design Kits & Evaluation Modules
LMC555  World’s smallest 555 timer with low power, high accuracy and a Fmax of 3MHz  Clock and Timing  Sample & Buy View Design Kits & Evaluation Modules
LP2951  30V, 100mA Micropower Voltage Regulators with Shutdown  Linear Regulator (LDO)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 910 14 Aug 2013 46
Design files (2)
Title Abstract Type Size (KB) Date Views
PDF 93 14 Aug 2013 23
PDF 266 14 Aug 2013 58


Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki