MC44608P40

Output Voltage :
Operating Supply Voltage :
Supply Current :
Number of Outputs : Single Output
Topology : Flyback
Packaging : Tube
Maximum Operating Temperature : + 85 C
Package / Case : PDIP-8
Minimum Operating Temperature : - 25 C
Output Current : 800 mA
Duty Cycle (Max) : 86 %
Switching Frequency : 44 KHz


Features:

• Integrated Startup Current Source
• Lossless Off−Line Startup
• Direct Off−Line Operation
• Fast Startup
• Flexibility
• Duty Cycle Control
• Undervoltage Lockout with Hysteresis
• On Chip Oscillator Switching Frequency 40 or 75
• Secondary Control with Few External Components
• Pb−Free Packages are Available*


Pinout




Specifications

Rating	Symbol	Value	Unit
Total Power Supply Current	ICC	30	mA
Output Supply Voltage with Respect to Ground	VCC	16	V
All Inputs except Vi	Vinputs	−1.0 to +16	V
Line Voltage Absolute Rating	Vi	500	V
Recommended Line Voltage Operating Condition	Vi	400	V
Power Dissipation and Thermal Characteristics Maximum Power Dissipation at TA = 85°C Thermal Resistance, Junction−to−Air	PD RJA	600 100	mW °C/W
Operating Junction Temperature	TJ	150	°C
Operating Ambient Temperature	TA	−25 to +85	°C

Description

The MC44608 is a high performance voltage mode controller designed for off−line converters. This high voltage circuit that integrates the startup current source and the oscillator capacitor, MC44608 requires few external components while offering a high flexibility and reliability.

The MC44608 also features a very high efficiency standby management consisting of an effective Pulsed Mode operation. This technique enables the reduction of the standby power consumption to approximately 1.0 W while delivering 300 mW in a 150 W SMPS.

Parameters:

Technical/Catalog Information	MC44608P40
Vendor	ON Semiconductor
Category	Integrated Circuits (ICs)
PWM Type	Voltage Mode
Number of Outputs	1
Package / Case	8-DIP (300 mil)
Packaging	Tube
Duty Cycle	86%
Voltage - Supply	12.5 V ~ 16 V
Frequency-Max	44kHz
Buck	No
Boost	No
Flyback	Yes
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	Yes
Drawing Number	*
Operating Temperature	-25°C ~ 85°C
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	MC44608P40 MC44608P40 MC44608P40OS ND MC44608P40OSND MC44608P40OS