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UC2909

Part Number	UC2909
Manufacturer	Unitrode
Description	Switchmode Lead-Acid Battery Charger
Published	Apr 17, 2020
Detailed Description	UC2909 - Obsolete Device UC2909 UC3909 Switchmode Lead-Acid Battery Charger FEATURES • Accurate and Efficient Control...
Datasheet	UC2909 PDF File

Overview

UC2909 - Obsolete Device UC2909 UC3909 Switchmode Lead-Acid Battery Charger FEATURES • Accurate and Efficient Control of Battery Charging • Average Current Mode Control from Trickle to Overcharge • Resistor Programmable Charge Currents • Thermistor Interface Tracks Battery Requirements Over Temperature • Output Status Bits Report on Four Internal Charge States • Undervoltage Lockout Monitors VCC and VREF DESCRIPTION The UC3909 family of Switchmode Lead-Acid Battery Chargers accurately controls lead acid battery charging with a highly efficient average current mode control loop.
This chip combines charge state logic with average current PWM control circuitry.
Charge state logic commands c...

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