MC33364D

Switching Frequency :
Duty Cycle (Max) :
Operating Supply Current :
Number of Outputs : 1
Mounting Style : SMD/SMT
Maximum Operating Temperature : + 125 C
Package / Case : SOIC-16
Rise Time : 67 ns
Fall Time : 28 ns
Operating Supply Voltage : 16 V


Features:

*Lossless Off-Line Startup
*Leading Edge Blanking for Noise Immunity
*Watchdog Timer to Initiate Switching
*Operating Temperature Range -25° to +125°C
*Shutdown Capability
*Over Temperature Protection
*Optional/Adjustable Frequency Clamp to Limit EMI


Pinout

Specifications

Rating	Symbol	Value	Unit
Power Supply Voltage (Operating)	VCC	16	V
Line Voltage	VLine	700	V
Current Sense, Compensation, Voltage Feedback, Restart Delay and Zero Current Input Voltage	Vin1	-1.0 to +10	V
Zero Current Detect Input	Iin	±5.0	mA
Restart Diode Current	Iin	5.0	mA
Power Dissipation and Thermal Characteristics D1 and D2 Suffix, Plastic Package Case 751 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction-to-Air D Suffix, Plastic Package Case 751B-05 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction-to-Air	PD RJA PD RJA	450 178 550 145	mW °C/W mW °C/W
Operating Junction Temperature	TJ	150	°C
Operating Ambient Temperature	TA	-25 to +125	°C
Storage Temperature Range	Tstg	-55 to +150	°C

Description

      The MC33364 series are variable frequency SMPS controllers that operate in the critical conduction mode. They are optimized for high density power supplies requiring minimum board area, reduced component count, and low power dissipation. Integration of the high voltage startup saves approximately 0.7 W of power compared to the value of the resistor bootstrapped circuits.

      Each MC33364 features an on- board reference, UVLO function, a watchdog timer to initiate output switching, a zero current detector to ensure critical conduction operation, a current sensing comparator, leading edge blanking, a CMOS driver and cycle- by- cycle current limiting.

      The MC33364D1 has an internal 126 kHz frequency clamp. The MC33364D2 is available without an internal frequency clamp. The MC33364D has an internal 126 kHz frequency clamp which is pinned out, so that the designer can adjust the clamp frequency by connecting appropriate values of resistance.