Universal input reference design for 12-V lead acid battery charger
PMP21618
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Key Document
- Universal input reference design for 12-V lead acid battery charger
(PDF 3580 KB)
13 Mar 2019
Description
This reference design takes a Universal AC input (85 VAC - 265 VAC) and converts to a 17.5-V isolated output using a PSR flyback topology. It is then followed by a battery charger circuit, which outputs up to 15 V to a lead acid battery. This is a fast-charge design capable of delivering 12 V @ 2.5 A (30 W) to the battery.
Features
- Universal input (85 VAC - 265 VAC), which can be used to power up the charger worldwide
- Conducted EMI testing provided
- Primary side regulated (PSR) flyback topology provides a cost-effective solution
- Small form factor to fit any mechanical housing of typical battery chargers
See the Important Notice and Disclaimer covering reference designs and other TI resources.