MC34060A - Motorola

MC34060A PULSE WIDTH MODULATOR CONTROLLER

The MC34060A is a fixed–frequency pulse width modulation control circuit, incorporating the primary building blocks required for the control of a switching power supply (see Figure 1). An internal–linear sawtooth oscillator is frequency–programmable by two external components, RT and CT. The approximate oscillator frequency is determined by: fosc ^ 1.2 RT .

Features

VCC 5.0 V ref Noninv 14 Input Inv 13 Input 12 Vref 11 N.C. 10 VCC D SUFFIX PLASTIC PACKAGE CASE 751A (SO
  –14) 0.1V 4 5 Oscillator 6 Q1 7 8 E 9 C Device MC34060AD MC34060AP MC33060AD (Top View) MC33060AP ORDERING INFORMATION Operating Temperature Range TA = 0° to +70°C TA =
  – 40° to +85°C Package SO
  –14 Plastic DIP SO
  –14 Plastic DIP Rev 1 © Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA 1 MC34060A MC33060A MAXIMUM RATINGS (Full operating ambient temperature range applies, unless otherwise noted.) Rating Power Supply Voltage Collector Output Voltage Collector Output Current (Note 1) Amp.