High Performance Current Mode PWM Controllers

The PL384XBP8 family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed Oscillator for precise duty cycle control, under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, Logic to insure latched operation, a PWM Comparator which also provides current limit control, and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-Channel MOSFETs is low in the off-state. Differences between members of this family are the under-voltage lockout thresholds and maximum duty cycle ranges. The PL3842B and PL3844B have UVLO thresholds of 16V (on) and 10V (off), ideally suited off-line applications. The corresponding thresholds for the PL3843B and PL3845B are 8.5V and 7.9V. The PL3842B and PL3843B CAN operate to duty cycles approaching 100%. A range of the zero to <50% is obtained by the PL3844B and PL3845B by the addition of an internal toggle flip flop which blanks the output off every other Clock cycle. By Cystech Electonics Corp.
PL384XBP8 's PackagesPL384XBP8 's pdf datasheet
PL3842B
PL3844B




PL384XBP8 Pinout, Pinouts
PL384XBP8 pinout,Pin out
This is one package pinout of PL384XBP8,If you need more pinouts please download PL384XBP8's pdf datasheet.

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