UC3909DWTR

Description：IC BATT CHG LEAD ACID 20SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)

SKU:90a5d9d0b371 Category: Battery Chargers Brand: Texas Instruments

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Product introduction

UC3909DWTR 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 UC3909DWTR

Description：IC BATT CHG LEAD ACID 20SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR)
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 UC3909DWTR

UC3909DWTR

Battery Chargers Overview

The UC3909DWTR is a Switchmode Lead-Acid Battery Charger manufactured by Texas Instruments. It operates within a supply voltage range of 7.5 V to 40 V and supports lead-acid battery chemistries. The device features a programmable charging current with a maximum output of 4.5 mA and a minimum of 3 mA. It is housed in a 20-pin SOIC package (SOIC-20, 7.50 mm width) designed for surface-mount installation. The component functions reliably across an operating temperature range of -20 °C to +70 °C.

Battery Chargers Feature Summary

Implements switchmode charging architecture optimized for lead-acid batteries
Provides programmable constant-current charging control
Supports wide input supply voltage operation up to 40 V

Battery Chargers Applications

Lead-acid battery charging systems
Sealed lead-acid battery management
Switchmode power supply integration

Battery Chargers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the target lead-acid chemistry and required charging current parameters. Confirm that the 20-pin SOIC footprint matches the design layout. Check for any environmental compliance markings or RoHS status updates from the manufacturer.

Battery Chargers Selection Notes

Select this component when a switchmode solution for lead-acid batteries is required with low current demands. The UC3909DWTR suits designs needing a 20-pin SOIC package and operation within the specified voltage and temperature ranges. Consider the programmable current limits and thermal performance during the initial circuit design phase.

Battery Chargers Part Context

This part belongs to the UC3909 series of switchmode battery chargers from Texas Instruments. It is functionally related to other devices in the UC2909 and UC3906 families, which also address lead-acid battery charging applications using similar switching topologies.