Universal input reference design for 12-V lead acid battery charger
PMP21618
(ACTIVE)
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Key Document
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
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Schematic/Block Diagram
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Design Guide
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TI Devices (3)
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CAD/CAE symbols
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Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Step 3: Open the .bxl file with the Ultra Librarian software.
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Technical Documents
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User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 3580 |
13 Mar 2019
|
Design files (6)
| | ZIP | 2155 |
13 Mar 2019
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| | ZIP | 2310 |
13 Mar 2019
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| | PDF | 755 |
13 Mar 2019
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| | PDF | 115 |
13 Mar 2019
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| | PDF | 59 |
13 Mar 2019
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| | PDF | 190 |
13 Mar 2019
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