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Reference Design Of 1s-3s Battery Charger

Reference design for a battery charger module reference design appropriate for 2-cell battery purposes with a large DC enter.

Li-Ion cells are required in nearly all moveable wi-fi electronics, be it an electrical toothbrush or a weighing scale. However Li-Ion cell are extremely unstable and might catch fireplace if its not monitored fastidiously, particularly in the course of the time of charging and discharging. So, to reinforce the security of the gadget, Texas Devices have launched PMP4397, a battery charger module reference design appropriate for 2-cell battery purposes with a DC enter of 4.5V – 15V.

The battery charger reference design from TI is appropriate for charging 1S – 3s cell configuration. The charging configuration will be modified by altering the reference resistor. This reference design is configured for a 2-cell utility which is appropriate for charging 2s cell having a voltage of 8.4V.

The mind of this reference design is BQ24133 IC. It’s a standalone extremely built-in Li-Ion and Li-Polymer switched-mode battery charger with two built-in N-channel energy MOSFETs. The BQ24133 fees one, two, or three cells (chosen by CELL pin) at a hard and fast 4.2 V/cell. The reference design fees the battery in three phases: preconditioning, fixed present, and fixed voltage. The security options of the reference design embrace thermal shutdown, cycle-by-cycle present restrict, adjustable enter overvoltage safety, and so forth.

Options of the reference design:
• Absolutely examined to adjust to the economic requirement (EN55022 CLASS B)
• Single chip for battery cost & outputs
• Safety consists of the Enter UVP, Enter OVP, output OCP and OTP
• Versatile configuration of output necessities by setting resistors
• Good thermal efficiency with a low part rely
• Small dimensions: 33mm x 50mm x 10mm

The reference design has been examined by TI to adjust to the economic requirement, the corporate has made the take a look at reviews public and has offered BoM, schematics, Gerber information, CAD/CAE information, and so forth. to simplify the design. To learn extra about this reference design or to obtain the above-mentioned assets, open this hyperlink



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