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UC3525ANG4 . - 

PWM Controller, 35V-4.5V supply, 500 kHz, 19V/100mA out, DIP-16

UC3525ANG4 . - PWM Controller, 35V-4.5V supply, 500 kHz, 19V/100mA out, DIP-16

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UC3525ANG4 .
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Product Overview

The UC3525ANG4 is a Regulating Pulse Width Modulator designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip +5.1V 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 the 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.
  • 8 to 35V Operation
  • 5.1V Reference trimmed to ±1%
  • 100Hz to 500kHz Oscillator range
  • Separate oscillator sync terminal
  • Adjustable dead time control
  • Internal soft-start
  • Pulse-by-pulse shutdown
  • Input under-voltage lockout with hysteresis
  • Latching PWM to prevent multiple pulses
  • Dual source/sink output drivers
  • Green product and no Sb/Br


Power Management

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