MP6005 8-80V, 250kHz High-Efficiency Flyback/Forward Controller MSOP10

MP6005 8-80V, 250kHz High-Efficiency Flyback/Forward Controller MSOP10

The MP6005 is a high-power, high-efficiency flyback and forward controller.

Key Specifications

Features

• Primary-Side Regulated Flyback without Optocoupler Feedback
• Synchronous Gate Driver (SYNC) Provides High Efficiency for Active-Clamped Forward Topology
• Wide 8V to 80V Input Voltage Range
• Internal Circuit Supply Compatible with 16V External Power
• 2A GATE and 0.8A SYNC Drivers
• 160mV Switching Current-Sense (CS) Limit
• Output Diode Compensation in Primary- Side Regulation (PSR) Mode
• 250kHz Fixed Switching Frequency
• Hiccup Protection, Overload Protection (OLP), Short-Circuit Protection (SCP), Over- Voltage Protection (OVP), and Thermal Shutdown
• Frequency Dithering to Reduce Electromagnetic Interference (EMI)

Typical Application Circuit

Applications

• Security Cameras
• Video Telephones
• Wireless Access Points (WAPs)
• Point-of-Sale (POS) Systems
• Power over Ethernet (PoE) Systems

Design Notes

• Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
• The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
• Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
• Route the feedback divider from the output capacitor terminals, away from the switch node.

Common Questions