UC3909DW

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

SKU:12fb32e0b46e Category: Battery Chargers Brand: Texas Instruments

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Product introduction

UC3909DW is listed in the Battery Chargers range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC BATT CHG LEAD ACID 20SOIC. Review the specifications below when checking this part for your BOM.

Battery Chargers specifications for UC3909DW

Description：IC BATT CHG LEAD ACID 20SOIC
Series：-
Mfr：Texas Instruments
Package：Tube
Battery Chemistry：Lead Acid
Voltage - Supply (Max)：40V
Operating Temperature：0°C ~ 70°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：-

Battery Chargers datasheet and documents for UC3909DW

UC3909DW

Battery Chargers Overview

The UC3909DW is a switchmode lead-acid battery charger integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 7.5 V to 40 V and delivers a maximum output current of 4.5 mA with a minimum of 3 mA. The device supports an output voltage of 20 V and functions in surface-mount SOIC-20 packages. It is rated for commercial temperatures between -20 °C and +70 °C.

Battery Chargers Feature Summary

Implements switchmode charging topology for lead-acid batteries
Integrates control logic for battery charge management
Designed for operation within standard commercial temperature ranges

Battery Chargers Applications

Lead-acid battery charging systems
Battery management modules
Power supply units requiring sealed lead-acid support

Battery Chargers Procurement Notes

Verify the specific suffix against official documentation, as it may indicate packaging or environmental compliance variations rather than functional changes. Confirm availability status directly with the manufacturer or authorized distributors, as component lifecycle stages can affect procurement options. Ensure the package type matches the intended PCB layout requirements before ordering.

Battery Chargers Selection Notes

Select this component when designing switchmode chargers for lead-acid applications requiring low output currents. Verify that the input voltage range aligns with the system power supply. Consider the SOIC-20 package dimensions for thermal and spatial constraints. Ensure the operating temperature range meets the environmental conditions of the final assembly.

Battery Chargers Part Context

This part belongs to the UC3909 series of switchmode lead-acid battery chargers from Texas Instruments. The series provides integrated solutions for managing charge cycles in lead-acid batteries. The DW suffix denotes the SOIC-20 surface-mount package variant within this product family.