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Featured Products
Medium power (20W to 150W Class)
AC/DC Converter ICs
BM1Cxxx Series
AC/DC Converter ICs
PFC OVP
PFC Output 2-Stage Switching Function
PFC stopped even during feedback
resistor failure
Step-up ratio switching is implemented based on
the AC input voltage, ensuring high efficiency
even with a lower input voltage
FUSE
AC
85-265Vac
Filter
15.0V 5.0A
Diode
Bridge
P_VS
Vcc
QR ZT Timeout Function
QR_ZT
SBD
P_IS
Csw
QR_OUT
QR_OUT
18
17
VH_IN
(N.C.)
16
15
14
P_TIMER QR_OUT P_OUT
ERROR
AMP.
P_IS
QR_CS
P_VS
13
12
11
10
P_IS
QR_CS
P_VS
P_OVP
QR_CS
RS
The ZT Timeout function turns
the MOSFET on after the timer
when bottom detection cannot
be performed, such as during
startup or voltage drops.
QR_FB
PC
BM1CxxxF
PFC ON/OFF Function
BR
Vcc
GND
QR_FB
QR_ZT
COMP
P_EO
BR
1
2
3
4
5
6
7
Vcc
QR_FB QR_ZT
P_RT P_OFFSET
8
PFC on/off possible through
optional power for improved
efficiency at light loads
9
BR
PC
CPU
High efficiency
across the entire
load range
Improved efficiency
even with no load
Multiple
protection
functions
The PFC stop function can be freely set
based on load, ensuring high efficiency
operation across the entire load range
An X Cap. Discharge function
is built in for improved no-load
standby power efficiency
Multiple built-in protection
functions protect component
parts and ensure stable operation
Series Features/Lineup
Common Specifications PFC Functions
QR Functions
■ PFC+QR combo IC available
■ 650V startup circuit
■ Vcc pin over-/under-voltage
protection
■ Brownout function
■ External latch pin function
■ QR burst operation/frequency
reduction Function during light loads
■ QR max. frequency: 120kHz
■ QR CS pin OPEN protection/OCP functions
■ QR overcurrent limiter AC compensation
function
■ QR soft start function
■ QR secondary overcurrent protection
■ QR_ZT pin 2-stage timeout/OVP function
■ PFC critical mode (voltage control)
■ PFC ZCD reduces switching loss and noise
■ PFC variable max. freq. control (<400kHz)
■ PFC dynamic & static OVP function
■ PFC output level switching function
■ PFC ON/OFF level setting function
AC/DC Converter ICs
AC/DC Converter ICs (PWM Type with Built-In MOSFET)
≤ 20W Class BM2Pxxx Series
AC/DC Converter ICs
Medium Power Class
AC/DC Converter ICs (PFC+Quasi-Resonant Type with External MOSFET)
≤ 150W Class
PFC+QR
Controller Type
(BM1Cxxx Series)
Control
Method
SOP18 Package
(11.2 x 7.8 x 2.0mm)
PFM
Protection Functions
BR*1
Vcc OVP*2
Oscillating
Frequency
○
Latch
120kHz
AC/DC Converter ICs (Quasi-Resonant Type with External MOSFET)
≤ 150W Class
QR
Controller Type
(BM1Qxxx Series)
Part No.
SOP-J8 Package
(4.9 x 6.0 x 1.65mm)
Control
Method
Protection Functions
BR*1
Vcc OVP*2
Oscillation
Frequency
BM1Q001FJ
PFM
−
Auto Restart
120kHz
BM1Q002FJ
PFM
−
Latch
120kHz
AC/DC Converter ICs (PWM Type with External MOSFET)
≤ 100W Class
PWM
Controller Type
(BM1Pxxx Series)
SOP-J8 Package
(4.9 x 6.0 x 1.65mm)
Protection Functions
BR*1
Vcc OVP*2
Oscillation
Frequency
PWM
○
Auto Restart
65kHz
BM1P062FJ
PWM
○
Latch
65kHz
BM1P101FJ
PWM
○
Auto Restart
100kHz
BM1P102FJ
PWM
○
Latch
100kHz
Part No.
Control
Method
BM1P061FJ
*1: BR - Brown In/Out voltage protection function
*2: Vcc OVP - Vcc pin over-/under-voltage protection function
The content specified in this document is correct as of October 1st, 2014.
[O_026] Catalog No.56O6741E-B 10.2014 ROHM © ROHM
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