BM1C101F
Power Factor Correction and Quasi-Resonant DC/DC converter IC
BM1C101F
Power Factor Correction and Quasi-Resonant DC/DC converter IC
作为功率因数矫正转换器(Power Factor Correction: PFC)＋准谐振(Quasi-Resonant: QR)DC/DC转换器的多转换器IC，BM1C101F为带插座的产品提供优良的系统。本产品内置650V耐压启动电路／X-Cap放电功能，有助于实现低待机功耗。PFC部采用电压控制方式的临界模式（BCM），可通过Zero Current Detection（ZCD）降低开关损耗和噪声。通过电阻进行零电流检测，因此无需ZCD用辅助绕组，可减少偏置部电路的零件数量，降低损耗。DCDC部采用准谐振方式。此方式实现了软开关，有助于实现低EMI。外接开关MOSFET及电流检测电阻，可实现自由度高的电源设计。轻负载时通过启动脉冲串功能提高效率。内置双系统PFC输出过电压保护功能。内置任意负载的PFC ON/OFF功能，可降低待机功耗。内置丰富的保护功能（VCC过电压保护、外部锁存保护、掉电保护、软启动功能、逐周期过电流限制、过负荷保护等）。
主要规格
特性：
FET
-
Controller Type
PFC + QR
Vin1(Min.)[V]
8.9
Vin1(Max.)[V]
26
Start Circuit [V]
650
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)
特点：
- 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
