Bq24195 reference design circuit | single-cell charger application circuit

The bq24195 is a highly integrated switch mode battery charge management and system power path management device with a 4.5A charge / 2.1A boost. This article mainly introduces the bq24195 characteristics, application range, reference design circuit and circuit analysis to help you shorten the design time.

Bq24195 features: high efficiency switch mode charger; synchronous boost converter in battery boost mode; single input USB compatible / adapter charger; 3.9V-17V input operating voltage range

Bq24195 typical application range: mobile power; tablet; lithium ion and lithium polymer battery

Bq24195 reference design application circuit:

Figure 1bq24195 internal structure diagram

Thebq24195L, bq24195 are highly-integrated switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer battery in a wide range of power bank,tablet and other portable devices.

Figure 2bq24195 reference design

Thebq24195L, bq24195 is an I2C controlled power path management device and a single cell Li-Ion battery charger. It integrates the input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), lowside switching FET ( LSFET, Q3), and BATFET (Q4) between system and battery. The device also integrates the bootstrap diode for the high-side gate drive.

Bq24195 Chinese data sheet: Click to download

More schematics and source code popular application circuit: click now

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