BM85060FV
BM85060FV is CRM Totem Pole PFC Controller IC manufactured by ROHM.
AC / DC Controller IC
CRM Totem Pole PFC Controller IC
General Description
The BM85060FV is a critical conduction mode (Cr M) power factor correction (PFC) controller IC designed to drive a bridgeless totem pole PFC topology. Bridgeless totem pole PFC consists of two totem pole legs: a fast-switching leg driven at high switching frequencies and a second leg operating at AC line frequency. This topology eliminates the need for a diode bridge, which is essential in conventional PFC circuits, and significantly improves efficiency and power density.
Features
- Critical conduction Mode (Cr M) and Discontinuous Conduction Mode (DCM) Operation
- Burst Mode Operation at Very Light Loads
- Brownout Detection
- X Capacitor Discharge Function
- High Voltage Startup
- Dynamic Response Enhancer
- Protections
- Output Over Voltage Protection (Fast Over Voltage, Second Over Voltage)
- Output Under Voltage Protection (UVP)
- Input Over Voltage Protection (VAC OVP)
- Overload and Peak Current Limit Protection
(Peak Current Limit, Soft Over Current)
- Inrush Current Limit
- Open Loop Detection
- Internal TSD
- AC Voltage Sudden Change Detection
- Negative Over Current Limiter
Key Specifications
- Operating Power Supply Voltage Range
VCC Pin Voltage: 8.0V to 36V (rated 40V)
HV Pin Voltage:
650 V (Max)
- Frequency Range:
25k Hz to 1MHz
- Operating Temperature Range: -40 °C to +125...
