ML4802CP, ML4803, ML4803C1 Selling Leads, Datasheet
MFG:ML Package Cooled:DIP D/C:D/C
ML4802CP, ML4803, ML4803C1 Datasheet download
Part Number: ML4802CP
MFG: ML
Package Cooled: DIP
D/C: D/C
ML4802CP, ML4803, ML4803C1
- Table of contents:
Info of ML4802CP
Info of ML4803
Info of ML4803C1
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About ML4802CP
PDF/DataSheet Download
Datasheet: ML4802CP
File Size: 306223 KB
Manufacturer: FAIRCHILD [Fairchild Semiconductor]
Download : Click here to Download
About ML4803
PDF/DataSheet Download
Datasheet: ML4803
File Size: 136855 KB
Manufacturer: FAIRCHILD [Fairchild Semiconductor]
Download : Click here to Download
About ML40123N
PDF/DataSheet Download
Datasheet: ML40123N
File Size: 108913 KB
Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]
Download : Click here to Download
ML4803 General Description
The ML4803 is a space-saving controller for power factor corrected, switched mode power supplies that offers very low start-up and operating currents.
Power Factor Correction (PFC) offers the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply fully compliant to IEC1000-3-2 specifications. The ML4803 includes circuits for the implementation of a leading edge, average current "boost" type PFC and a trailing edge, PWM.
The ML4803-1's PFC and PWM operate at the same frequency, 67kHz. The PFC frequency of the ML4803-2 is automatically set at half that of the 134kHz PWM. This higher frequency allows the user to design with smaller PWM components while maintaining the optimum operating frequency for the PFC. An overvoltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting for enhanced system reliability.
ML4803 Maximum Ratings
Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
| Parameter | Min | Max | Unit |
| ICC Current (average) | 40 | mA | |
| VCC MAX | 18.3 | V | |
| ISENSE Voltage | -5 | 1 | V |
| Voltage on Any Other Pin | GND 0.3 | VCC + 0.3 |
V |
| Peak PFC OUT Current, Source or Sink | 1 | A | |
| Peak PWM OUT Current, Source or Sink | 1 | A | |
| PFC OUT, PWM OUT Energy Per Cycle | 1.5 | µJ | |
| Junction Temperature | 150 | °C | |
| Storage Temperature Range | -65° | 150 | °C |
| Lead Temperature (Soldering, 10 sec) | 260 | °C | |
| Thermal Resistance (JA) Plastic DIP Plastic SOIC |
110 160 |
°C/W °C/W |
ML4803 Features
• Internally synchronized PFC and PWM in one 8-pin IC
• Patented one-pin voltage error amplifier with advanced input current shaping technique
• Peak or average current, continuous boost, leading edge PFC (Input Current Shaping Technology)
• High efficiency trailing-edge current mode PWM
• Low supply currents; start-up: 150µA typ., operating: 2mA typ.
• Synchronized leading and trailing edge modulation
• Reduces ripple current in the storage capacitor between the PFC and PWM sections
• Overvoltage, UVLO, and brownout protection
• PFC VCC OVP with PFC Soft Start
• Patented one-pin voltage error amplifier with advanced input current shaping technique
• Peak or average current, continuous boost, leading edge PFC (Input Current Shaping Technology)
• High efficiency trailing-edge current mode PWM
• Low supply currents; start-up: 150µA typ., operating: 2mA typ.
• Synchronized leading and trailing edge modulation
• Reduces ripple current in the storage capacitor between the PFC and PWM sections
• Overvoltage, UVLO, and brownout protection
• PFC VCC OVP with PFC Soft Start
ML4803 Connection Diagram
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