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UC3526A

工作溫度范圍為 0°C 至 70°C 的 35V、雙路 0.2A 600KHz PWM 控制器; ? Reduced Supply Current\n? Oscillator Frequency to 600kHz\n? Precision Band-Gap Reference\n? 7 to 35V Operation\n? Dual 200mA Source/Sink Outputs\n? Minimum Output Cross-Conduction\n? Double-Pulse Suppression Logic\n? Under-Voltage Lockout\n? Programmable Soft-Start\n? Thermal Shutdown\n? TTL/CMOS Compatible Logic Ports\n? 5 Volt Operation (VIN = VC = VREF = 5.0V);

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.

UC3526A

Regulating Pulse Width Modulator

UC3526A

Regulating Pulse Width Modulator

UC3526A

Regulating Pulse Width Modulator

UC3526AM

穩(wěn)壓脈寬調(diào)制器; ? 8 To 35V Operation? 5V Reference Trimmed To ±1%? 1Hz To 400kHz Oscillator Range? Dual 100mA Source/Sink Outputs? Digital Current Limiting? Double Pulse Suppression? Programmable Deadtime? Under-Voltage Lockout? Single Pulse Metering? Programmable Soft-Start? Wide Current Limit Common Mode Range? TTL/CMOS Compatible Logic Ports? Symmetry Correction Capability? Guaranteed 6 Unit Synchronization;

The UC1526 is a high performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width modulator, pulse metering and setting logic, and two low impedance power drivers. Also included are protective features such as soft-start and under-voltage lockout, digital current limiting, double pulse inhibit, a data latch for single pulse metering, adjustable deadtime, and provision for symmetry correction inputs. For ease of interface, all digital control ports are TTL and B-series CMOS compatible. Active LOW logic design allows wired-OR connections for maximum flexibility. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformerless and transformer coupled. The UC1526 is characterized for operation over the full military temperature range of -55°C to +125°C. The UC2526 is characterized for operation from -25°C to +85°C, and the UC3526 is characterized for operation from 0° to +70°C. \n

UC3526ADW

Regulating Pulse Width Modulator

UC3526ADW

Regulating Pulse Width Modulator

UC3526ADWG4

Regulating Pulse Width Modulator

UC3526ADWG4

Regulating Pulse Width Modulator

UC3526ADWTR

Regulating Pulse Width Modulator