UC3909DW
- Mfr.Part #
- UC3909DW
- Manufacturer
- Texas Instruments
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC BATT CHG LEAD ACID 20SOIC
- Stock
- 27
- In Stock :
- 27
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Texas Instruments
- Product Category :
- Battery Chargers
- Control Mode :
- CURRENT-MODE
- Number of Pins :
- 20
- Surface Mount :
- yes
- Moisture Sensitivity Level (MSL) :
- 2 (1 Year)
- Lead Free :
- Contains Lead
- HTS Code :
- 8542.39.00.01
- Radiation Hardening :
- No
- Peak Reflow Temperature (Cel) :
- 260
- Battery Chemistry :
- Lead Acid
- Analog IC - Other Type :
- BATTERY CHARGE CONTROLLER
- Number of Functions :
- 1
- Height :
- 2.35mm
- Packaging :
- Tube
- Max Supply Voltage :
- 40V
- Min Supply Voltage :
- 7.5V
- Number of Terminations :
- 20
- Supply Voltage :
- 15V
- Terminal Pitch :
- 1.27mm
- Supply Current-Max (Isup) :
- 19mA
- Width :
- 7.52mm
- Operating Temperature :
- 0°C~70°C TA
- JESD-609 Code :
- e4
- Length :
- 12.8mm
- Input Voltage-Nom :
- 15V
- Base Part Number :
- UC3909
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- RoHS Status :
- ROHS3 Compliant
- Nominal Input Voltage :
- 40V
- Terminal Position :
- Dual
- Control Technique :
- PULSE WIDTH MODULATION
- Switcher Configuration :
- Single
- ECCN Code :
- EAR99
- Mounting Type :
- Surface Mount
- Output Current :
- 100mA
- Operating Supply Current :
- 13mA
- Power Supplies :
- 15V
- Current - Charging :
- Constant - Programmable
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Weight :
- 569.003279mg
- Pin Count :
- 20
- Terminal Form :
- Gull wing
- Switching Frequency :
- 242kHz
- Pbfree Code :
- yes
- Datasheets
- UC3909DW

Battery Chargers Texas Instruments UC3909DW Overview
The Battery Chargers Texas Instruments UC3909DW is a highly integrated circuit specifically designed for the management and control of lead-acid battery charging processes. Crafted by the reputable Texas Instruments, this robust IC comes in a 20SOIC package, catering to the advanced needs of precision charging. It's meticulously engineered to ensure reliability and long-term battery life, making it an indispensable component for manufacturers aiming to optimize battery performance and safety. The UC3909DW stands out for its ability to operate with a wide range of input voltages, making it versatile for various applications requiring efficient lead-acid battery management. Its intelligent design not only enhances the charging efficiency but also prolongs the lifespan of the battery, ensuring superior performance and cost-effectiveness for B2B clients looking to incorporate reliable charging solutions in their products.
UC3909DW Features
- Lead-Acid Battery Charge Management
- 20SOIC Package for Optimal Board Space Utilization
- Wide Input Voltage Range for Versatile Use
- Industry-Leading Texas Instruments Quality and Reliability
UC3909DW Applications
- Uninterruptible Power Supplies (UPS): Integrating UC3909DW ensures consistent and safe charging, vital for maintaining the UPS's readiness and longevity.
- Electric Vehicles: The chip is utilized for managing the recharge cycles of lead-acid batteries, ensuring efficient energy usage and prolonging the vehicle's operational life.
- Industrial Machinery: Implements precise charging in heavy-duty machinery, optimizing performance and reducing downtime due to battery maintenance.
- Renewable Energy Systems: UC3909DW aids in the responsible charge handling of storage batteries within green energy solutions, essential for maintaining system stability.
- Portable Power Tools: Employed to manage battery health, enabling tools to retain charge and function effectively over prolonged periods of use.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















