Other Parts Discussed in Thread: BQ24278 , BQ24253 , BQ24257 Hi,
I'm planning to use bq24278 charger IC for my battery charger application. However, no system load is going to be used. How should I configure SYS, BOOT, SW, BGATE pins ?
Thanks.
Other Parts Discussed in Thread: BQ24253 Hi,
I'm using bq24278rger for Li-Ion charger application, and designed a test board. The problem is simply about CD and /CE connections. When both stay at "3.3V", everything seems OK. ( Vdrv, Vsys). However, when…
Other Parts Discussed in Thread: BQ24278 , BQ24266 , BQ24250 Hi Jeff,
With Vin=8,V and VDPM = 1,9V, buck converter of the bq24278 just worked well. I connect CD pin to the ground and changing CE/ as Vcc and GND. When it is connected to GND, CE/ pin starts…
Other Parts Discussed in Thread: BQ24278 Hello,
I have done a Li Ion battery charger using BQ24278. My maximum charger current is 1A.Schematic is attached. The charger is not giving any output. Input is 4.5V. when i check the waveform at SWpin a low…
Other Parts Discussed in Thread: BQ24253 , BQ24278 Hello,
My customer is looking into BQ24278 and BQ24253. The datasheet gives Vin operating range 4.2-10V (and 10.5 respefully), while he needs 17V capable (DC from the car). The OVP is operating above 10V…
Other Parts Discussed in Thread: BQ24278 Charger is "oscillating" on/off at ~4kHz (along with another longer period and repetitive event) when battery is inserted while external power present (this only happens with Vin between 5.1 and 5.3V).…
Other Parts Discussed in Thread: BQ24278 Hi,
I'm designing a new embedded system with battery: 10Ah, single-cell, Lithium-Polymer ; I thought of using the bq24278 component (it has 2.5A of charger current), but that would be suitable for Li-Ion batteries…
Other Parts Discussed in Thread: BQ24278 hi,
questions regarding BQ24278:
When AC adapter is connected (lets say 5V) what is the voltage at SYS/SW pin (out pin connect to the load)?
Which voltage is recommended to supply for high efficiency and minimum…
After following the steps described in the evaluation board, I can't get the IC to reach the charge current programmed by the Iset resistor.
When powering the circuit both LEDs turn on, but sometimes it starts charging the battery with a 0.5A current…
Other Parts Discussed in Thread: BQ24278 , BQ24250 USing the BQ24278, what is the behviour under the following conditions:
- input current limit set to 2.5A, battery charge limit set to 2.5A. System load is off. When connected to USB source with maximum…
