UC2525A

工作溫度范圍為 -25°C 至 85°C 的 35V、雙路 0.4A 400KHz PWM 控制器; ? 8-V to 35-V Operation\n? 5.1-V Reference Trimmed to 1%\n? 100-Hz to 500-kHz Oscillator Range\n? Separate Oscillator Sync Terminal\n? Adjustable Dead-Time Control\n? Internal Soft Start\n? Pulse-by-Pulse Shutdown\n? Input Undervoltage Lockout With Hysteresis\n? Latching PWM to Prevent Multiple Pulses\n? Dual Source and Sink Output Drivers;

The UC1525A/1527A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip 5.1-V reference is trimmed to 1% and the input common-mode range of the error amplifier includes the reference voltage, eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between CT and the discharge terminals provides a wide range of dead-time adjustment. These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.

UC2525A

REGULATING PULSE WIDTH MODULATORS

UC2525A

Regulating Pulse Width Modulators

UC2525A

REGULATING PULSE WIDTH MODULATORS

UC2525A

REGULATING PULSE WIDTH MODULATORS

UC2525AM

穩(wěn)壓脈寬調(diào)制器; ? 8-V to 35-V Operation\n? 5.1-V Reference Trimmed to 1%\n? 100-Hz to 500-kHz OscillatorRange\n? Separate Oscillator Sync Terminal\n? AdjustableDead-Time Control\n? Internal Soft Start\n? Pulse-by-PulseShutdown\n? Input Undervoltage Lockout WithHysteresis\n? Latching PWM to Prevent Multiple Pulses\n? DualSource and Sink Output Drivers\n;

The UC1525A/1527A series of pulse width modulator integrated circuits are designed tooffer improved performance and lowered external parts count when used in designing all types ofswitching power supplies. The on-chip 5.1-V reference is trimmed to 1% and the input common-moderange of the error amplifier includes the reference voltage, eliminating external resistors. A syncinput to the oscillator allows multiple units to be slaved or a single unit to be synchronized toan external system clock. A single resistor between CT and the dischargeterminals provides a wide range of dead-time adjustment. These devices also feature built-insoft-start circuitry with only an external timing capacitor required. A shutdown terminal controlsboth the soft-start circuitry and the output stages, providing instantaneous turn off through thePWM latch with pulsed shutdown, as well as soft-start recycle with longer shutdown commands.\n\n

UC2525ADW

Regulating Pulse Width Modulators

UC2525ADW

REGULATING PULSE WIDTH MODULATORS

UC2525ADW

REGULATING PULSE WIDTH MODULATORS

UC2525ADWG4

REGULATING PULSE WIDTH MODULATORS