BM1C101F
Power Factor Correction and Quasi-Resonant DC/DC converter IC
BM1C101F
Power Factor Correction and Quasi-Resonant DC/DC converter IC
作為功率因數校正轉換器(Power Factor Correction: PFC)＋準諧振(Quasi-Resonant: QR)DC/DC轉換器的多轉換器IC，BM1C101F為帶插座的產品提供最佳的系統。本產品內建650V耐壓啟動電路／X-Cap放電功能，有助於實現低待機功耗。PFC部採用電壓控制方式的臨界模式（BCM），可透過Zero Current Detection（ZCD）降低開關損耗和雜訊。透過電阻進行零電流檢測，因此無需ZCD用輔助繞組，可減少偏置部電路的零件數量，降低損耗。DC/DC部採用準諧振方式。此方式實現了軟開關，有助於實現低EMI。外接開關MOSFET及電流檢測電阻，可實現自由度高的電源設計。輕載時透過啟動脈衝串功能提高效率。內建雙系統PFC輸出過電壓保護功能。內建任意負載的PFC ON/OFF功能，可降低待機功耗。內建豐富的保護功能（VCC過電壓保護、外部鎖存保護、掉電保護、軟啟動功能、逐週期過電流限制、過負擔保護等）。
Product Detail
規格:
FET
-
Controller Type
PFC + QR
Vin1(Min.)[V]
8.9
Vin1(Max.)[V]
26
Start Circuit
Integrated
SW frequency(Max.)[kHz]
120
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
Package Size [mm]
11.2x7.8 (t=2.01)
功能:
- 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
