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BM1C001F

更新时间： 2024-10-17 01:17:19
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罗姆 - ROHM /
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35页 1589K
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Power Factor Correction and Quasi-Resonant DC/DC converter IC

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BM1C001F 数据手册

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Datasheet  
AC/DC Drivers  
Power Factor Correction and  
Quasi-Resonant DC/DC converter IC  
BM1C001F  
„ PFC Output level setting function  
„ PFC ON/OFF level 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  
General Description  
The compounded LSI of the Power Factor Correction (PFC)  
converter and Quasi-Resonant (QR) controller type AC/DC  
converter IC provides an optimum system for all products that  
include an electrical outlet. BM1C001F has a built in HV  
starter circuit that tolerates 650V and contributes to low power  
consumption and high speed start.  
The PFC part is a Boundary Conduction Mode (BCM). It  
reduces the switching loss and the switching noise. This IC  
has adopted the voltage control mode, a solution that  
achieves no auxiliary winding and reduces external parts and  
the bias current.  
Applications  
The DC/DC part is Quasi-Resonant controlled. This control  
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’s output  
terminal, which protects electrolytic capacitors 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 and Household appliances (Printer, TV,  
Vacuum cleaners, Air cleaners, Air conditioners, IH cooking  
heaters, Rice cookers, etc.).  
Key Specifications  
Operating Power Supply:  
Voltage Range:  
Operating Current:  
VCC  
8.9V to 26.0V  
80V to 600V  
1.2mA (Typ)  
0.6mA (Typ)  
400kHz (Max)  
120kHz (Typ)  
-40°C to +85°C  
VH_IN  
Normal  
Burst  
PFC  
Max frequency:  
QR  
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 current mode (voltage control)  
„ PFC Zero Cross Detection  
„ PFC variable max frequency (up to 400kHz)  
„ PFC Dynamic & Static OVP function  
SOP18  
Typical Application Circuit  
15.0V 5.0A  
FUSE  
AC  
Diode  
Filter  
P_VS  
85-265  
Vac  
Bridge  
VCC  
QR_ZT  
SBD  
P_IS  
QR_OUT  
Csw  
QR_OUT  
P_IS  
13  
P_IS  
QR_CS  
12  
QR_CS  
P_VS  
11  
P_VS  
QR_CS  
ERROR  
18  
17  
16  
15  
14  
10  
P_OVP  
RS  
AMP  
P_TIMERQR_OUT P_OUT  
VH_IN (N.C.)  
QR_FB  
PC  
PC  
BM1C001F  
COMP P_EO  
P_RT P_OFFSET  
BR  
7
VCC  
1
GND  
2
QR_FB QR_ZT  
3
4
5
6
8
9
BR  
CPU  
VCC  
QR_FB  
QR_ZT  
BR  
Figure 1. Application circuit  
○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays  
.www.rohm.com  
TSZ02201-0F1F0A200010-1-2  
29.Aug.2013 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
1/32  
TSZ22111・14・001  
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