• BQ32000: Backup pin connection of BQ32000

  

  Feng bin Su

  TI Thinks Resolved

  Part Number: BQ32000 Hi team, My customer is using our BQ32000 and they have question about our RTC. If they don't need backup supply, can they connect vback to vcc together?

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: BQ32000 using questions

  

  Kevin Chuang

  TI Thinks Resolved

  Part Number: BQ32000 Hi TI FAE, I have some questions about using BQ32000. 1. According spec, the Vback voltage(Backup supply voltage) < 1.4V, it can't run RTC. But our testing, the Vback voltage < 1.4V, it can keep running RTC until 0.8V. Is it correct…

  • 3 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: BQ32000 backup voltage requirement

  

  Kevin Chuang

  TI Thinks Resolved

  Part Number: BQ32000 What's the minmum voltage of Super capacitor(Vback voltage) need to let timer work when Vcc remove? What's difference between operating and swithover on Backup supply voltage?

  • 4 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• BQ32000: PT7C4302WEX

  

  Naizeng Wang

  Resolved

  Part Number: BQ32000 Hi team, Could you recommend p2p parts with PT7C4302WEX? Br, Nison

  • Resolved

  • 2 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: Pre-calibration accuracy for full temperature range(TA)

  

  Ben Kuo

  TI Thinks Resolved

  Part Number: BQ32000 Dear team, Did we have Pre-calibration accuracy data for -40~85 degree can share with customer? I only found data for TA=25 in device datasheet. Regards, Ben

  • 1 month ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: Implement BQ32000 in 5V system

  

  Gabriel Xu

  TI Thinks Resolved

  Part Number: BQ32000 Hi teams Customers trying to use BQ32000 in their 5V system products(water heater) As BQ32000 is powered by 3.3V a voltage regulator is needed in this case. In order to save LDO cost, we are planning to use a resistor divider to generate…

  • 7 months ago
  • Clock & timing
  • Clock & timing forum
Answered

• RE: BQ32000: BQ32000

  

  jayashree

  Resolved

  Hi Lane, In the design I had provided external tuning capacitors for the crystal. Once I removed the external crystal it is working as expected. Thanks for your support. With regards, Jayashree.

  • 8 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: Device ID

  

  Jason Dai

  TI Thinks Resolved

  Part Number: BQ32000 Hello E2E, Customer is asking if there are any register could determine or customize the device ID in bq32000. Since there are two bq3200 source they are using in their project, they want to how to determine TI BQ32000. Please advise…

  • 5 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: need cap for crystal?

  

  HS WG-FAE

  TI Thinks Resolved

  Part Number: BQ32000 Hello, does the bq32000 need a cap at the OSCI/OSCO pins parallel to the crystal? Is CL of 12pF inside the bq32000? What other external components are needed? The schematic in chapter 8.2 Typical Application shows cap for VCC and…

  • 5 months ago
  • Clock & timing
  • Clock & timing forum

• BQ32000: assert IRQ in specific time

  

  Ann_Lien

  TI Thinks Resolved

  Part Number: BQ32000 Hello expert, Based on below E2E link, we would like to search a solution which could assert IRQ in specific time like every day 4:00/8:00/12:00. For BQ32000, it seems like it should have a MCU or host to set OUT/FT/FTF to change…

  • 6 months ago
  • Clock & timing
  • Clock & timing forum

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