UC3906N

The UC3906N series of battery charger controllers contains all of the necessary circuitry to optimally control the charge and hold cycle for sealed lead-acid batteries. These integrated circuits monitor and control 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.

Features of the UC3906N are:(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.

The absolute maximum ratings of the UC3906N can be summarized as:(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°C(Note 2):1000mW; (11)Power Dissipation at TC = 25°C (Note 2):2000mW; (12)Operating Junction Temperature:-55°C to +150°C; (13)Storage Temperature:-65°C to +150°C; (14)Lead Temperature (Soldering, 10 Seconds):300°C.

If you want to know more information such as the UC3906N electrical characteristics ,please download the datasheet in www.seekdatasheet.com .