Answered

• LP8867-Q1: difference between LP8867-Q1 and LP8869C-Q1-Q1

  

  Elec Cheng

  Resolved

  Part Number: LP8867-Q1 Other Parts Discussed in Thread: LP8869C-Q1 , Hi Expert, Our customer wants to replace LP8869C-Q1 with LP8867-q1. If we don't use Power-Line FET Control and Automatic LED Current Reduction With External Temperature Sensor is…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8867-Q1: how to measure power consumption

  

  Lee, Sam

  Resolved

  Part Number: LP8867-Q1 Hello team, For power consumption measurement of LP8867-Q1, can you answer the following questions? -. The probing point is node1 or node2? -. Active supply current is measured with PWM=0%? Thanks, Sam Lee

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8861-Q1: Question about changing LP8867-Q1 to LP8861-Q1.

  

  CHO SR

  Resolved

  Part Number: LP8861-Q1 Other Parts Discussed in Thread: LP8867-Q1 , Hi, The customer is considering changing LP8867-Q1 to LP8861-Q1. Please review whether LP8861-Q1 can be used for the existing schematic. LP8867-Q1 Schematic] Delete Schematic. Q1. What…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8869-Q1: Question about changing LP8867-Q1 to LP8869-Q1.

  

  CHO SR

  Resolved

  Part Number: LP8869-Q1 Other Parts Discussed in Thread: LP8867-Q1 , Hi, The customer has a problem with the delivery date of LP8867-Q1. So the customer wants to use LP8869-Q1. I'm worried that two outputs are being connected in parallel. Please review…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8867-Q1: Max dimming ratio for 200Hz PWM

  

  Masatoshi Oguri

  Resolved

  Part Number: LP8867-Q1 Hello, The maximam dimming ratio is somehow recommended up to 10,000:1 for 100Hz PWM, while the minimum off time is 0.5us. How much will it be for 200Hz PWM? Thank you. Regards, Oguri (TIJ automotive FAE)

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8867C-Q1: Difference between LP8867C-Q1 and LP8867-Q1

  

  Yoshiki Ochi

  Resolved

  Part Number: LP8867C-Q1 Other Parts Discussed in Thread: LP8867-Q1 Hi team, Do you have comparison table between LP8867-Q1 and LP8867C-Q1 in aspect of pin location, pin function, electrical characteristics, and internal chip, wire bonding differences…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8867-Q1: PWM is available for LED current dimming?

  

  Lee, Sam

  Resolved

  Part Number: LP8867-Q1 Hello team, For LED current dimming, LP8867-Q1 supports TSENSE pin and it’s controlled by external thermistor. However, instead of using thermistor at TSENSE pin, is it possible to use a signal like PWM from MCU in order…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

• LP8867-Q1: Phase margin measurement

  

  Shinji Tsuji

  TI Thinks Resolved

  Part Number: LP8867-Q1 Hi team, Is there a tool to simulate phase margin of LP8867-Q1? regards,

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8867-Q1: tolerance of switching frequency

  

  Shinji Tsuji

  Resolved

  Part Number: LP8867-Q1 Hi team, Could you advise the tolerance of the switching frequency of LP8867-Q1 when it is set by the resistor? I need this information to set the frequency to avoid AM band. regards,

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum
Answered

• LP8867-Q1: Isd time to peak 230uA

  

  Shinji Tsuji

  Resolved

  Part Number: LP8867-Q1 Hi team, SD pin behavior at soft start is described as below. "In SOFT START state, the SD pin slowly increases the sink current until it reaches 230 μA." Could you advise how long does it take to reach 230uA? regards…

  • Resolved

  • over 2 years ago
  • Power management
  • Power management forum

Didn't find what you are looking for? Post a new question.