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Power Factor Correction and Quasi-Resonant DC/DC converter IC - BM1C101F

The compounded LSI of the Power Factor Correction (PFC) converter and Quasi-Resonant (QR) controller type DC/DC converter IC provides an optimum system for all products that include an electrical outlet. BM1C101F has a built-in HV starter circuit that tolerates 650V and X-Cap discharge function, and contributes to low power consumption and high speed start. The PFC part operates by Boundary Conduction Mode (BCM). It reduces the switching loss and the switching noise. Because of zero current detection (ZCD) by a resistance, this solution achieves no auxiliary winding and reduces external parts and the bias current. The DC/DC part operates by Quasi-Resonant Mode This method enables soft switching and helps to keep the EMI low. With MOSFET for switching and current detection resistors as external devices, a higher degree of design freedom is achieved. This IC has over voltage protection for the PFC output terminal, which protects electrolytic capacitor by stopping switching and makes the standby power consumption low by the PFC ON/OFF control function. The IC includes various protective functions such as VCC over voltage protection, external latch protection, brown out protection, soft start function, per-cycle current limiter and over load protection.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BM1C101F-GE2
Status | Active
Package | SOP18
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | Yes

Specifications:

FET

-

Controller Type

PFC + QR

Vin1(Min.)[V]

8.9

Vin1(Max.)[V]

26.0

Start Circuit [V]

650.0

SW frequency(Max.)[KHz]

120.0

Vcc OVP

Latch

BR PIN

Yes

Channel

1

Light Load mode

Yes

EN

No

Soft Start

Yes

Thermal Shut-down

Yes

Under Voltage Lock Out

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

105

Features:

  • PFC+QR Combo IC
  • Built-in 650V tolerance start circuit
  • VCC pin: under and over voltage protection
  • Brown out function
  • External latch terminal function
  • PFC boundary conduction mode (voltage control)
  • PFC Zero Cross Detection
  • PFC variable max frequency
  • PFC Dynamic & Static OVP function
  • PFC Output level switched function
  • PFC ON/OFF setting
  • QR low power when load is light (Burst operation) and frequency decrease function
  • QR maximum frequency control (120kHz)
  • QR_CS pin open protection and OCP function
  • QR Over-Current Protection with AC compensation
  • QR Soft Start function
  • QR secondary side protection circuit of over-current
  • QR_ZT pin 2 step timeout function and OVP function