MC33067 Series

High Performance Resonant Mode Controller

Catalog

High Performance Resonant Mode Controller

Part	Number of Outputs	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Configuration	Output Type	Function	Output Phases	Frequency - Switching	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Topology	Supplier Device Package	Control Features	Package / Case	Package / Case	Package / Case	Package / Case [x]	Package / Case [y]
ON Semiconductor MC34067PG	2	8.6 V	20 V	Isolation Capable Positive	Transistor Driver	Step-Up/Step-Down	1	2.05 MHz	70 °C	0 °C	Through Hole	Flyback	16-PDIP	Enable Soft Start	0.3 in	16-DIP	7.62 mm
ON Semiconductor MC33067DWG	2	8.6 V	20 V	Isolation Capable Positive	Transistor Driver	Step-Up/Step-Down	1	2.05 MHz	85 °C	-40 °C	Surface Mount	Flyback	16-SOIC	Enable Soft Start		16-SOIC		0.295 in	7.5 mm
ON Semiconductor MC33067DW	2	8.6 V	20 V	Isolation Capable Positive	Transistor Driver	Step-Up/Step-Down	1	2.05 MHz	85 °C	-40 °C	Surface Mount	Flyback	16-SOIC	Enable Soft Start		16-SOIC		0.295 in	7.5 mm
ON Semiconductor MC34067DW	2	8.6 V	20 V	Isolation Capable Positive	Transistor Driver	Step-Up/Step-Down	1	2.05 MHz	70 °C	0 °C	Surface Mount	Flyback	16-SOIC	Enable Soft Start		16-SOIC		0.295 in	7.5 mm
ON Semiconductor MC34067P	2	8.6 V	20 V	Isolation Capable Positive	Transistor Driver	Step-Up/Step-Down	1	2.05 MHz	70 °C	0 °C	Through Hole	Flyback	16-PDIP	Enable Soft Start	0.3 in	16-DIP	7.62 mm
ON Semiconductor MC33067PG	2	8.6 V	20 V	Isolation Capable Positive	Transistor Driver	Step-Up/Step-Down	1	2.05 MHz	85 °C	-40 °C	Through Hole	Flyback	16-PDIP	Enable Soft Start	0.3 in	16-DIP	7.62 mm

Catalog

High Performance Resonant Mode Controller

Key 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 Operation

• Pb-Free Packages are Available*

Description

The MC34067/MC33067 are high performance zero voltage switch resonant mode controllers designed for off-line and dc-to-dc converter applications that utilize frequency modulated constant off-time or constant deadtime control. These integrated circuits feature a variable frequency oscillator, a precise retriggerable one-shot timer, temperature compensated 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 comparator and latch, programmable soft-start circuitry, inputundervoltage lockout with selectable thresholds, and reference undervoltage lockout.These devices are available in dual-in-line and surface mount packages.