The UC1526A Series are improved-performance pulse-width modulator circuits intended for direct replacement of equivalent non- “A” versions in all applications. Higher frequency operation has beenenhanced 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 “logic level” applications by connecting VIN, VC and VREF to a precision 5V input supply. Consult factory for additional information.
FEATURES
• 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)
UC3526AN
Part : UC3526AN
Brand : Texas Instruments
Description : Switching Controllers Regulating PWM
Package : PDIP-18
Topology: Buck, Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Number of Outputs: 2 Output
Switching Frequency: 450 kHz
Duty Cycle - Max: 50 %
Output Voltage: 5.10 V
Output Current: 100 mA
Maximum Operating Temperature: + 70 C
Mounting Style: Through Hole
Package / Case: PDIP-18
Packaging: Tube
Fall Time: 100 ns
Minimum Operating Temperature: 0 C
Rise Time: 300 ns
.JPG)
.JPG)
.JPG)