Pb Battery Charger w/Charging Algorithm Using SIMPLE SWITCHER DC/DC Converter Reference Design PMP9456 (ACTIVE)

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Description

The reference design provides a battery charging solution for a 6V, 4.7AH Lead Acid battery with a simple charging algorithm implemented using the DC/DC Buck converter LM46001. Such batteries are widely used in industrial and consumer applications such as digital weigh scales. The design is done for 300mA of constant current charging (and thereof tapering of current) which can be changed by modifying the current sense resistor. The feedback is modified using very low cost discrete devices to achieve the charging algorithm.

Features
  • Proven Charging Algorithm implemented
  • Adjustable Frequency Range - 200KHz to 2.2MHz
  • Integrated Synchronous Rectification
  • Internal Compensation
  • Precsion Enable to Program system UVLO
  • Output Short Circuit Protection with Hiccup mode

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Part Number Status

PMP9456:
TI Design - Lead Acid Battery Charger with Charging Algorithm using Simple Switcher DC/DC converter

ACTIVE

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM46001  3.5 to 60V, 1A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM46002  3.5V to 60V, 2A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM46001 Download Download
LM46002 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 988 23 Jul 2014
Design files (3)
Title Type Size (KB) Date
ZIP 217 23 Jul 2014
PDF 19 23 Jul 2014
PDF 50 23 Jul 2014
More literature (1)
Title Type Size (KB) Date
PDF 1139 08 Feb 2016

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