MC34067
feature a variable frequency oscillator, a precise retriggerable one- shot timer, temperature pensated reference, high gain wide bandwidth error amplifier, steering flip- flop, and dual high current totem pole outputs ideally suited for driving power MOSFETs.
Also included are protective features consisting of a high speed fault parator and latch, programmable soft- start circuitry, input undervoltage lockout with selectable thresholds, and reference undervoltage lockout. These devices are available in dual- in- line and surface mount packages.
Features
- Zero Voltage Switch Resonant Mode Operation
- Variable Frequency Oscillator with a Control Range
Exceeding 1000:1
- Precision One- Shot Timer for Controlled Off- Time
- Internally Trimmed Bandgap Reference
- 4.0 MHz Error Amplifier
- Dual High Current Totem Pole Outputs
- Selectable Undervoltage Lockout Thresholds with Hysteresis
- Enable Input
- Programmable Soft- Start Circuitry
- Low Startup Current for Off- Line...
