Product Summary

The UC3906N is a Battery Management Lead-Acid Linear Charger. It contains all of the necessary circuitry to optimally control the charge and hold cycle for sealed lead-acid batteries. The UC3906N monitors and controls both the output voltage and current of the charger through three separate charge states; a high current bulk-charge state, a controlled over-charge, and a precision float-charge, or standby, state.

Parametrics

UC3906N absolute maximum ratings: (1)Supply Voltage (+VIN): 40V; (2)Open Collector Output Voltages: 40V; (3)Amplifier and Comparator Input Voltages: -0.3V to +40V; (4)Over-Charge Terminate Input Voltage: -0.3V to +40V; (5)Current Sense Amplifier Output Current: 80mA; (6)Other Open Collector Output Currents: 20mA; (7)Trickle Bias Voltage Differential with respect to VIN: -32V; (8)Trickle Bias Output Current: -40mA; (9)Driver Current: 80mA; (10)Power Dissipation at TA = 25℃: 1000mW; (11)Power Dissipation at TC = 25℃: 2000mW; (12)Operating Junction Temperature: -55℃ to +150℃; (13)Storage Temperature: -65℃ to +150℃; (14)Lead Temperature (Soldering, 10 Seconds): 300℃.

Features

UC3906N features: (1)Optimum Control for Maximum Battery Capacity and Life; (2)Internal State Logic Provides Three Charge States; (3)Precision Reference Tracks Battery Requirements Over Temperature; (4)Controls Both Voltage and Current at Charger Output; (5)System Interface Functions; (6)Typical Standby Supply Current of only 1.6mA.

Diagrams

UC3906N block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UC3906N
UC3906N

Texas Instruments

Battery Management Lead-Acid Linear Charge Mngt IC

Data Sheet

0-1: $3.63
1-25: $3.38
25-100: $3.05
100-250: $2.80
UC3906NG4
UC3906NG4

Texas Instruments

Battery Management Lead-Acid Linear Charge Mngt IC

Data Sheet

0-1: $2.42
1-25: $2.36
25-100: $2.29
100-250: $2.14