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Housed in SOIC-8 or PDIP-8 package, the NCP1200 represents a major leap toward ultra-compact Switchmode Power Supplies. Due to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short-circuit
protection lets the designer build an extremely low-cost AC-DC wall adapter associated with a simplified feedback scheme. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller drives low gate-charge switching devices like an IGBT or a MOSFET thus requiring a very small operating power. Due to current-mode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with extremely low acoustic generation and inherent pulse-by-pulse control. When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the skip cycle mode and provides excellent efficiency at light loads. Because this occurs at low peak current, no acoustic noise takes place. Finally, the IC is self-supplied from the DC rail, eliminating the need of an auxiliary winding. This feature ensures operation in presence of low output voltage or shorts.
Features:

No Auxiliary Winding Operation

Internal Output Short-Circuit Protection

Extremely Low No-Load Standby Power

Current-Mode with Skip-Cycle Capability

Internal Leading Edge Blanking

250 mA Peak Current Source/Sink Capability

Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz

Direct Optocoupler Connection

Built-in Frequency Jittering for Lower EMI

SPICE Models Available for Transient and AC Analysis

Internal Temperature Shutdown

These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant

Brand/Series	NCP PWM Series
Current, Consumption	1.2 mA
Current, Input Bias	0.02 μA
Current, Output	600 mA
Current, Sink	250 mA
Current, Startup	710 μA
Current, Supply	710 μA
Dimensions	10.16 x 7.11 x 4.95 mm
Frequency	42 kHz
Frequency, Switching	48 kHz
Height	0.195" (4.95mm)
Input Voltage	222 V
Length	0.4" (10.16mm)
Maximum Source Current	4 mA
Mounting Type	Surface Mount
Number of Outputs	1
Number of Pins	8
Operating Voltage Range	500 V
Package Type	SOIC-8
Primary Type	Controllers
Supply Voltage	16 V
Temperature, Junction	150 °C
Temperature, Operating, Maximum	+150 °C
Temperature, Operating, Minimum	-60 °C
Temperature, Operating, Range	-60 to +150 °C
Thermal Resistance, Junction to Ambient	178 °C/W
Time, Fall	28 ns
Time, Rise	67 ns
Type	PWM
Voltage, Output	40 to 80 V
Width	0.28" (7.11mm)
关键词

Brand/Series NCP PWM Series  ON Semiconductor Brand/Series NCP PWM Series  PWM Controllers Brand/Series NCP PWM Series  ON Semiconductor PWM Controllers Brand/Series NCP PWM Series   Current, Consumption 1.2 mA  ON Semiconductor Current, Consumption 1.2 mA  PWM Controllers Current, Consumption 1.2 mA  ON Semiconductor PWM Controllers Current, Consumption 1.2 mA   Current, Input Bias 0.02 μA  ON Semiconductor Current, Input Bias 0.02 μA  PWM Controllers Current, Input Bias 0.02 μA  ON Semiconductor PWM Controllers Current, Input Bias 0.02 μA   Current, Output 600 mA  ON Semiconductor Current, Output 600 mA  PWM Controllers Current, Output 600 mA  ON Semiconductor PWM Controllers Current, Output 600 mA   Current, Sink 250 mA  ON Semiconductor Current, Sink 250 mA  PWM Controllers Current, Sink 250 mA  ON Semiconductor PWM Controllers Current, Sink 250 mA   Current, Startup 710 μA  ON Semiconductor Current, Startup 710 μA  PWM Controllers Current, Startup 710 μA  ON Semiconductor PWM Controllers Current, Startup 710 μA   Current, Supply 710 μA  ON Semiconductor Current, Supply 710 μA  PWM Controllers Current, Supply 710 μA  ON Semiconductor PWM Controllers Current, Supply 710 μA   Dimensions 10.16 x 7.11 x 4.95 mm  ON Semiconductor Dimensions 10.16 x 7.11 x 4.95 mm  PWM Controllers Dimensions 10.16 x 7.11 x 4.95 mm  ON Semiconductor PWM Controllers Dimensions 10.16 x 7.11 x 4.95 mm   Frequency 42 kHz  ON Semiconductor Frequency 42 kHz  PWM Controllers Frequency 42 kHz  ON Semiconductor PWM Controllers Frequency 42 kHz   Frequency, Switching 48 kHz  ON Semiconductor Frequency, Switching 48 kHz  PWM Controllers Frequency, Switching 48 kHz  ON Semiconductor PWM Controllers Frequency, Switching 48 kHz   Height 0.195" (4.95mm)  ON Semiconductor Height 0.195" (4.95mm)  PWM Controllers Height 0.195" (4.95mm)  ON Semiconductor PWM Controllers Height 0.195" (4.95mm)   Input Voltage 222 V  ON Semiconductor Input Voltage 222 V  PWM Controllers Input Voltage 222 V  ON Semiconductor PWM Controllers Input Voltage 222 V   Length 0.4" (10.16mm)  ON Semiconductor Length 0.4" (10.16mm)  PWM Controllers Length 0.4" (10.16mm)  ON Semiconductor PWM Controllers Length 0.4" (10.16mm)   Maximum Source Current 4 mA  ON Semiconductor Maximum Source Current 4 mA  PWM Controllers Maximum Source Current 4 mA  ON Semiconductor PWM Controllers Maximum Source Current 4 mA   Mounting Type Surface Mount  ON Semiconductor Mounting Type Surface Mount  PWM Controllers Mounting Type Surface Mount  ON Semiconductor PWM Controllers Mounting Type Surface Mount   Number of Outputs 1  ON Semiconductor Number of Outputs 1  PWM Controllers Number of Outputs 1  ON Semiconductor PWM Controllers Number of Outputs 1   Number of Pins 8  ON Semiconductor Number of Pins 8  PWM Controllers Number of Pins 8  ON Semiconductor PWM Controllers Number of Pins 8   Operating Voltage Range 500 V  ON Semiconductor Operating Voltage Range 500 V  PWM Controllers Operating Voltage Range 500 V  ON Semiconductor PWM Controllers Operating Voltage Range 500 V   Package Type SOIC-8  ON Semiconductor Package Type SOIC-8  PWM Controllers Package Type SOIC-8  ON Semiconductor PWM Controllers Package Type SOIC-8   Primary Type Controllers  ON Semiconductor Primary Type Controllers  PWM Controllers Primary Type Controllers  ON Semiconductor PWM Controllers Primary Type Controllers   Supply Voltage 16 V  ON Semiconductor Supply Voltage 16 V  PWM Controllers Supply Voltage 16 V  ON Semiconductor PWM Controllers Supply Voltage 16 V   Temperature, Junction 150 °C  ON Semiconductor Temperature, Junction 150 °C  PWM Controllers Temperature, Junction 150 °C  ON Semiconductor PWM Controllers Temperature, Junction 150 °C   Temperature, Operating, Maximum +150 °C  ON Semiconductor Temperature, Operating, Maximum +150 °C  PWM Controllers Temperature, Operating, Maximum +150 °C  ON Semiconductor PWM Controllers Temperature, Operating, Maximum +150 °C   Temperature, Operating, Minimum -60 °C  ON Semiconductor Temperature, Operating, Minimum -60 °C  PWM Controllers Temperature, Operating, Minimum -60 °C  ON Semiconductor PWM Controllers Temperature, Operating, Minimum -60 °C   Temperature, Operating, Range -60 to +150 °C  ON Semiconductor Temperature, Operating, Range -60 to +150 °C  PWM Controllers Temperature, Operating, Range -60 to +150 °C  ON Semiconductor PWM Controllers Temperature, Operating, Range -60 to +150 °C   Thermal Resistance, Junction to Ambient 178 °C/W  ON Semiconductor Thermal Resistance, Junction to Ambient 178 °C/W  PWM Controllers Thermal Resistance, Junction to Ambient 178 °C/W  ON Semiconductor PWM Controllers Thermal Resistance, Junction to Ambient 178 °C/W   Time, Fall 28 ns  ON Semiconductor Time, Fall 28 ns  PWM Controllers Time, Fall 28 ns  ON Semiconductor PWM Controllers Time, Fall 28 ns   Time, Rise 67 ns  ON Semiconductor Time, Rise 67 ns  PWM Controllers Time, Rise 67 ns  ON Semiconductor PWM Controllers Time, Rise 67 ns   Type PWM  ON Semiconductor Type PWM  PWM Controllers Type PWM  ON Semiconductor PWM Controllers Type PWM   Voltage, Output 40 to 80 V  ON Semiconductor Voltage, Output 40 to 80 V  PWM Controllers Voltage, Output 40 to 80 V  ON Semiconductor PWM Controllers Voltage, Output 40 to 80 V   Width 0.28" (7.11mm)  ON Semiconductor Width 0.28" (7.11mm)  PWM Controllers Width 0.28" (7.11mm)  ON Semiconductor PWM Controllers Width 0.28" (7.11mm)