UC2909DW

Description：IC BATT CHG LEAD ACID 20SOIC
Series：-
Mfr：Texas Instruments
Package：Tube

SKU:84c8805e4b7c Category: Battery Chargers Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC BATT CHG LEAD ACID 20SOIC
Series：-
Mfr：Texas Instruments
Package：Tube
Battery Chemistry：Lead Acid
Voltage - Supply (Max)：40V
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：20-SOIC (0.295", 7.50mm Width)
Supplier Device Package：20-SOIC
Number of Cells：-
Current - Charging：Constant - Programmable
Programmable Features：-
Fault Protection：-
Charge Current - Max：-
Battery Pack Voltage：-
Interface：-
Grade：-
Qualification：-

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UC2909DW

Overview

The UC2909DW is a switchmode lead-acid battery charger integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of up to 40 V and delivers an output current of 2 A at a maximum output voltage of 20 V. The device is housed in a 20-pin SOIC package designed for surface mount installation. It functions within an operating temperature range from -55 °C to +125 °C. This component is classified under Battery Management products and supports charge management applications for lead-acid battery types.

Feature Summary

Implements switchmode charging architecture specifically optimized for lead-acid battery chemistries
Provides regulated power delivery with defined output current and voltage capabilities
Supports extended thermal operation suitable for demanding industrial environments

Applications

Lead-acid battery charge management systems
Switchmode battery charger designs
Industrial power supply backup systems

Procurement Notes

Verify the specific suffix and revision level against the manufacturer datasheet to ensure compatibility with required thermal and packaging specifications. Confirm availability status as distribution channels may vary for this component. Cross-reference pinout and electrical parameters with the official TI documentation before integration into final designs.

Selection Notes

Select this component when designing switchmode chargers for lead-acid batteries requiring high output current. Consider the wide operating temperature range and SOIC package constraints. Evaluate system voltage requirements against the 40 V maximum supply limit and 20 V output capability.

Part Context

The UC2909 belongs to the UC2909 series of battery management ICs. It serves as a specialized solution for managing lead-acid battery charging cycles using switchmode techniques. The DW variant denotes the specific surface-mount package configuration used in modern electronic assemblies.