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  • RE: BQ24450: Single Cell Lead Acid Battery Charger

    Hello Rajan, A negative Rd value is equivalent to STAT1 sourcing current but this is not possible with the device (STAT1 can only sink). For BQ24450 you must charge the lead acid battery greater than the Vref of 2.3V. Best regards, Nick

  • BQ24450: Is BQ24450 always charging battery?

    Part Number: BQ24450 Dear team This is Sunny from China. I have a question about BQ24450 charging process. As you can see below picture, in STATE#3, the I_CHG is 0, until V_BAT is VRCH, the new charging cycle will start again. I want to know, in STATE#3…

  • BQ24450: Life Expectancy for this part

    Part Number: BQ24450 Other Parts Discussed in Thread: BQ24650 , I am updating a design for a client and they need to provide a 10 year lifecycle for their products. The product is expected to be release in about 18 months. Will this product still be available…

  • BQ24450: Question of BQ24450

    TI Thinks Resolved
    Part Number: BQ24450 Other Parts Discussed in Thread: BQ24610 , BQ24650 Dear Team, Our customer spec as below: Vin =27V Boost to 29V and charge the lead-acid battery. (3A) Can BQ24450 meet the demand? If not, are there any other suggestions? Many Thanks…

  • UC3906: Will UC3906 be a good alternative of BQ24450?

    Part Number: UC3906 Other Parts Discussed in Thread: BQ24450 , , UC2906 Hi team, This is Xiaoying, my customer is utilizing BQ24450 but recently they are facing with shortage issue. We find that UC3906 might be a good alternative as it is pin-to-pin with…
    • Answered

  • BQ24450: 24v Lead Acid resistor values

    Resolved
    Part Number: BQ24450 Other Parts Discussed in Thread: BQ24650 Hi, In relation to this post here: (+) BQ24450: BQ24450 24V Lead Acid Battery charger circuit Resistors Value - Power management forum - Power management - TI E2E support forums There was a…
    • Resolved

  • BQ24450: Battery Monitoring System for Industrial UPS

    TI Thinks Resolved
    Part Number: BQ24450 Other Parts Discussed in Thread: BQ76952 Hi, I am looking for a Battery Monitoring System to monitor & charge balance strings of VRLA batteries in datacenter applications. Could you direct me on the right products and applications…

  • BQ24450: BQ24450

    TI Thinks Resolved
    Part Number: BQ24450 Other Parts Discussed in Thread: BQ2031 , BQ25703A , BQ25703 , BQ24650 HII i want to use your BQ24450 for lead acid battery charger my maximum charging voltage is 6 v and i want to charge 4 v lead acid battery .is it possible ? and another…
    • Answered

  • BQ24450: BQ24450 External Transistor

    Resolved
    Part Number: BQ24450 Dear Sir, please answer I tested circuit (please, see attach, "picture 2"). I set 3A initial current for charging 1-cell lead acid battery (2.3V). This circuit works. VT1 transistor and VD1 diode must be placed on the heatsink…
    • Resolved
    • Answered

  • BQ24450: Rp calculation at different currents and temperatures

    Resolved
    Part Number: BQ24450 I have seen the calculation of Rp be based on Vcesat of the internal BJT; this voltage however is highly dependent on collector current and operating temperature. Formulas sometimes include the 2.0V drop, sometimes don't. The answers…
    • Resolved

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