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
















