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.
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…
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…
Part Number: BQ24450 Other Parts Discussed in Thread: BQ24610 , BQ24650 Dear Team,
Our customer spec as below:
Boost to 29V and charge the lead-acid battery. (3A)
Can BQ24450 meet the demand? If not, are there any other suggestions?
Part Number: UC3906 Other Parts Discussed in Thread: BQ24450 , , UC2906
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…
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…
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…
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 ?
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…
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…