UC3909Q
- Mfr.Part #
- UC3909Q
- Manufacturer
- Unitrode
- Package / Case
- 28-LCC (J-Lead)
- Datasheet
- Download
- Description
- IC BATT CHG 0.1A 242KHZ BIPOLAR
- Stock
- 629
- In Stock :
- 629
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- * Fullname:
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- Manufacturer :
- Unitrode
- Product Category :
- Battery Chargers
- Peak Reflow Temperature (Cel) :
- NOT SPECIFIED
- ECCN Code :
- EAR99
- Height Seated (Max) :
- 4.57mm
- RoHS Status :
- ROHS3 Compliant
- Operating Supply Voltage :
- 40V
- Terminal Form :
- J BEND
- Packaging :
- Tube
- Control Mode :
- CURRENT-MODE
- Number of Pins :
- 28
- Analog IC - Other Type :
- BATTERY CHARGE CONTROLLER
- Qualification Status :
- Not Qualified
- Base Part Number :
- UC3909
- Supply Current-Max (Isup) :
- 19mA
- Terminal Pitch :
- 1.27mm
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Package / Case :
- 28-LCC (J-Lead)
- Reach Compliance Code :
- not_compliant
- Control Technique :
- PULSE WIDTH MODULATION
- Terminal Position :
- QUAD
- Length :
- 11.505mm
- Output Current :
- 2A
- Supply Voltage :
- 15V
- Nominal Input Voltage :
- 40V
- Battery Chemistry :
- Lead Acid
- Mounting Type :
- Surface Mount
- Current - Charging :
- Constant - Programmable
- Operating Temperature :
- 0°C~70°C TA
- Number of Functions :
- 1
- HTS Code :
- 8542.39.00.01
- Number of Terminations :
- 28
- Lead Free :
- Contains Lead
- Pbfree Code :
- No
- Input Voltage-Nom :
- 15V
- Mount :
- Surface Mount
- Switcher Configuration :
- Single
- Switching Frequency :
- 242kHz
- Width :
- 11.505mm
- Moisture Sensitivity Level (MSL) :
- 2 (1 Year)
- Power Supplies :
- 15V
- Datasheets
- UC3909Q

Battery Chargers Unitrode UC3909Q Overview
The Battery Chargers Unitrode UC3909Q is a pivotal component in advanced battery management systems, optimized for efficient and reliable charging. This integrated circuit is designed by Unitrode to facilitate low power consumption and high-frequency operation at 242 kHz, making it an ideal solution for applications demanding compact size and precise charge control. Its bipolar technology ensures robust performance across a wide range of environmental conditions. With its ability to manage charging currents up to 0.1A, the Battery Chargers Unitrode UC3909Q is engineered to enhance the lifecycle and reliability of battery-powered devices, promoting sustainable and energy-efficient usage.
UC3909Q Features
This IC features several key attributes that make it suitable for high-performance battery charging applications:
- Low Current Charging: Capable of managing charging processes with currents as low as 0.1A, ideal for small-scale electronics.
- High Frequency Operation: Operates at a high frequency of 242 kHz, allowing for smaller passive components and reduced overall size.
- Bipolar Technology: Utilizes bipolar technology to enhance reliability and performance under variable operating conditions.
UC3909Q Applications
- Portable Electronics: Perfect for charging small, portable devices such as handheld GPS units and portable media players, where efficiency and battery life are critical.
- Backup Power Supplies: Can be used in backup power systems to ensure stable and reliable battery management, maintaining optimal charge levels and prolonging battery life.
- Renewable Energy Systems: Ideal for small-scale renewable energy installations such as solar-powered devices, where efficient energy management is crucial.
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