Datasheet > BM1C101F

BM1C101F

更新时间： 2024-10-17 11:12:51

品牌	Logo	应用领域
罗姆 - ROHM		开关软启动脉冲功率因数校正插座转换器
页数	文件大小	规格书
39页	1913K
描述
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）。

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BM1C101F 数据手册

Datasheet

AC/DC Drivers

Power Factor Correction and

Quasi-Resonant DC/DC converter IC

BM1C101F

General Description

■PFC Output level switched function

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.

■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

Applications

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.

AC adapters, TV, Lighting, Household appliances (Vacuum

cleaners, Air cleaners, Air conditioners, IH cooking

heaters, Rice cookers, etc.).

Key Features

Operating Power Supply:

VCC

8.9V to 26.0V

80V to 500V

1.2mA (Typ)

Voltage Range:

Operating Current:

VH_IN

Normal

Burst

PFC

0.6mA (Typ)

Max frequency:

External setting

120kHz (Typ)

-40°C to+105°C

The range of temperature:

Features

Package W(Typ) x D(Typ) x H(Max)

■PFC+QR Combo IC

SOP18

11.20mm × 7.80mm × 2.01mm pitch 1.27mm

■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

SOP18

Typical Application Circuit

FUSE

Diode

Bridge

Filter

P_VS

VCC

QR_ZT

SBD

P_IS

QR_OUT

P_IS

QR_CS

P_VS

QR_CS

P_OVP

VH_IN

(N.C.)

P_TIMER QR_OUT P_OUT

QR_FB

BM1C101F

BM1C10ｘF

P_EO

COMP

P_RT P_OFFSET

VCC

GND

QR_FB QR_ZT

μ-

com

VCC

QR_FB

QR_ZT

Figure 1. Application circuit

○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays

.www.rohm.com

TSZ02201-0F1F0A200160-1-2

22.Mar.2016 Rev.002

1/36

TSZ22111・14・001

12 3 4 5 6 7...39

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与BM1C101F相关器件

型号	品牌	获取价格	描述	数据表
BM1C102F	ROHM	获取价格	作为功率因数矫正转换器(Power Factor Correction: PFC)＋准谐振
BM1C102F-GE2	ROHM	获取价格	Switching Controller, 39.5kHz Switching Freq-Max, PDSO18, SOP-18
BM1P061FJ	ROHM	获取价格	PWM Control IC
BM1P061FJ_15	ROHM	获取价格	PWM Control type DC/DC converter IC
BM1P061FJ-E	ROHM	获取价格	PWM Control type DC/DC converter IC
BM1P061FJ-E2	ROHM	获取价格	PWM Control IC
BM1P062FJ	ROHM	获取价格	PWM Control IC
BM1P062FJ-E2	ROHM	获取价格	PWM Control type DC/DC converter IC
BM1P063FJ	ROHM	获取价格	PWM Control IC
BM1P063FJ-E2	ROHM	获取价格	PWM Control IC

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