• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 2 answers
  • Subscribers 64 subscribers
  • Views 255 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS55332-Q1: TPS55332-Q1

Dave Whitaker
Prodigy 190 points
Part Number: TPS55332-Q1
Other Parts Discussed in Thread: TPS55340, LM5122, LM5155, LM2588

 Hi there,

I was looking at the specs for the TPS55332 and would like to know if the following input and output parameters are feasible for this device.....

Vin 24 Volts  +/- 0.5 Volts

Vout   29 to 30 Volts  @ 3 Amps

If not,  please explain the limitations and if I have any other options.

Regards
Dave

  • 0
    TI__Mastermind 40080 points

    Dear sir,

    It is on the corner of can or cannot.  Please set the Vout at 29V instead of 30V, and use a very low drop diode to make the eff. as high as possible.

    And also please use a 4-layer pcb, and the layout should be refer to the EVM  to make sure it has a big GND copper plane for the heat dissipate.

  • 0 in reply to Helen chen
    Prodigy 190 points

    I really don't think we can use a 4  layer  as it might be out of our budget.   Can we lower our frequency ?  If not,
    can you please offer another alternative part ?  Please also be as specific  and detailed as you can in your answer as  I am not an expert in DC to DC converters. 
    I have searched based on our voltage and current requirements  and  the list below came up.  Would one of these be more suitable ?

    Dave

    Part Number
    Compare
    		Vin (Min) (V)Vin (Max) (V)Vout (Min) (V)Vout (Max) (V)Switch current limit (Typ) (A)Duty cycle (Max) (%)Regulated outputs (#)Switching frequency (Min) (kHz)Switching frequency (Max) (kHz)Iq (Typ) (mA)Features
    Show filters Reset 8 matching parts out of 157 total partsDownload to Excel Email
    Part Number
    		Vin (Min) (V)Vin (Max) (V)Vout (Min) (V)Vout (Max) (V)Switch current limit (Typ) (A)Duty cycle (Max) (%)Regulated outputs (#)Switching frequency (Min) (kHz)Switching frequency (Max) (kHz)Iq (Typ) (mA)Features
    TPS55340-EP - Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator - Hi-Rel 2.9 32 3 38 6.6 89 1 100 1200 0.5 Enable, Frequency Synchronization, Light Load Efficiency
    TPS55340 - Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator 2.9 32 3 38 6.6 90 1 100 1200 0.5 Enable, Frequency Synchronization, Light Load Efficiency
    TPS55340-Q1 - Automotive Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator 2.9 38 3 38 6.6 90 1 100 2500 0.5 Enable, Frequency Synchronization, Light Load Efficiency
    LM2586 - 4V to 40V, 3A Step-Up Wide Vin Flyback Regulator 4 40 1.23 60 4 98 1 75 125 11 Enable, Frequency Synchronization
    LM2588 - 5A Flyback Regulator with Shutdown 4 40 1.23 60 6.5 98 1 75 125 11 Enable, Frequency Synchronization
    LM2587 - 4V to 40V, 5A Step-Up Wide Vin Flyback Regulator 4 40 1.23 60 6.5 98 1 85 115 11
    LM2585 - 4V to 40V, 3A Step-Up Wide Vin Flyback Converter 4 40 1.23 60 4 98 1 85 115 11
    TPS55332-Q1 - Automotive 1.5V to 60V Wide Input Range, 3A Boost Converter with Voltage Supervisor 1.5 60 2.5 50 5.7 70 1 80 2200 4.2 Enable, Frequency Synchronization, Power Good, UVLO

    Thanks
    Dave

  • 0 in reply to Dave Whitaker
    TI__Mastermind 40080 points

    Hi Dave,

    For the TPS55340 and the TPS55332, you must use 4-layer board, or the board will be very hot.

    If you don't want to use 4-layer board, you can use a controller, like LM5155, LM5122. Thus you can use a seperate MOSFET and diode. The thermal will be better.

    I'm not familiar with LM2588, you can check with that product line.