Product Overview

Product Overview
MC33067: High Performance Resonant Mode Controller
For complete documentation, see the data sheet
Product 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.
Features
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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
For more features, see the data sheet
Part Electrical Specifications
Product
Compliance
Status
Topolog
y
Control
Mode
fsw Typ
(kHz)
StandUVLO
by Mode (V)
Short
Circuit
Protecti
on
Latch
Soft
Start
VCC Max Drive
(V)
Cap.
(mA)
Packag
e Type
MC33067DWG
PPAP
Capable
Active
Flyback
Voltage
Mode
1000
No
Yes
Yes
No
Yes
20
200 /
200
SOIC16W
Active
Flyback
Voltage
Mode
1000
No
Yes
Yes
No
Yes
20
200 /
200
SOIC16W
Active
Flyback
Voltage
Mode
1000
No
Yes
Yes
No
Yes
20
200 /
200
PDIP-16
Active
Flyback
Voltage
Mode
1000
No
Yes
Yes
No
Yes
20
200 /
200
SOIC16W
Active
Flyback
Voltage
Mode
1000
No
Yes
Yes
No
Yes
20
200 /
200
SOIC16W
Active
Flyback
Voltage
Mode
1000
No
Yes
Yes
No
Yes
20
200 /
200
PDIP-16
Pb-free
Halide free
MC33067DWR2G
PPAP
Capable
Pb-free
Halide free
MC33067PG
Pb-free
Halide free
MC34067DWG
PPAP
Capable
Pb-free
Halide free
MC34067DWR2G
PPAP
Capable
Pb-free
Halide free
MC34067PG
Pb-free
Halide free
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016