The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- \x93A\x94 versions in all applications. Higher frequency operation has been enhanced by several significant improvements including: a more accurate oscillator with less minimum dead time, reduced circuit delays (particularly in current limiting), and an improved output stage with negligible cross-conduction current. Additional improvements include the incorporation of a precision, band-gap reference generator, reduced overall supply current, and the addition of thermal shutdown protection.
●Along with these improvements, the UC1526A Series retains the protective features of under-voltage lockout, soft-start, digital current limiting, double pulse suppression logic, and adjustable deadtime. For ease of interfacing, all digital control ports are TTL compatible with active low logic.
●Five volt (5V) operation is possible for \x93logic level\x94 applications by connecting VIN, VC and VREF to a precision 5V input supply. Consult factory for additional information.
● Reduced Supply Current
● Oscillator Frequency to 600kHz
● Precision Band-Gap Reference
● 7 to 35V Operation
● Dual 200mA Source/Sink Outputs
● Minimum Output Cross-Conduction
● Double-Pulse Suppression Logic
● Under-Voltage Lockout
● Programmable Soft-Start
● Thermal Shutdown
● TTL/CMOS Compatible Logic Ports
● 5 Volt Operation (VIN = VC = VREF = 5.0V)
