〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays.
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TSZ02201-0F1F0A200770-1-2
© 2020 ROHM Co., Ltd. All rights reserved.
09.Apr.2021 Rev.001
TSZ22111 • 14 • 001
www.rohm.com
GND
SOURCE
FB
ZT VCC
DRAIN
SOURCE
BR
Filter
FUSE
Diode
Bridge
ERROR
/AMP
Quasi-resonant AC/DC Converter
Built-in 1700 V SiC-MOSFET
BM2SC12xFP2-LBZ Series
General Description
This is the product guarantees long time support in
industrial market.
BM2SC12xFP2-LBZ series is a quasi-resonant AC/DC
converter that provides an optimum system for all
products which has an electrical outlet. Quasi-resonant
operation enables soft switching and helps to keep the
EMI low.
This IC can be designed easily because it includes the
1700 V SiC (Silicon-Carbide) MOSFET.
Design with a high degree of flexibility is achieved with
current detection resistors as external devices. The burst
operation reduces an electric power at light load.
BM2SC12xFP2-LBZ series includes various protection
functions, such as soft start function, burst operation
function, over current limiter per cycle, over voltage
protection, overload protection.
Features
◼ Long Time Support Product for Industrial Applications
◼ TO263-7L Package
◼ Built-in 1700 V SiC-MOSFET
◼ Quasi-resonant Type (Low EMI)
◼ Frequency Reduction Function
◼ Low Current Consumption (19 µA) during Standby
◼ Burst Operation at Light Load
◼ SOURCE Pin Leading Edge Blanking
◼ VCC UVLO (Under Voltage Lock Out)
◼ VCC OVP (Over Voltage Protection)
◼ Over Current Protection Circuit per Cycle
◼ Soft Start Function
◼ ZT Pin Trigger Mask Function
◼ ZT OVP (Over Voltage Protection)
◼ BR UVLO (Under Voltage Lock Out)
Key Specifications
◼ Operating Power Supply Voltage Range:
VCC: 15.0 V to 27.5 V
DRAIN: 1700 V (Max)
◼ Normal Operating Current: 800 µA (Typ)
◼ Burst Operating Current: 500 µA (Typ)
◼ Maximum Operating Frequency: 120 kHz (Typ)
◼ Operating Temperature: -40 °C to +105 °C
Package W (Typ) x D (Typ) x H (Max)
TO263-7L 10.18 mm x 15.5 mm x 4.43 mm
Lineup
Product name
FB OLP
VCC OVP
BM2SC121FP2-LBZ
Auto Restart
Latch
BM2SC122FP2-LBZ
Latch
Latch
BM2SC123FP2-LBZ
Auto Restart
Auto Restart
BM2SC124FP2-LBZ
Latch
Auto Restart
Applications
Industrial Equipment, AC Adaptor, Household Appliances
Typical Application Circuit
Datashee
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TSZ02201-0F1F0A200770-1-2
© 2020 ROHM Co., Ltd. All rights reserved.
09.Apr.2021 Rev.001
www.rohm.com
TSZ22111 • 15 • 001
BM2SC12xFP2-LBZ Series
Pin Configuration
Pin Descriptions
Pin No.
Pin Name
I/O
Function
ESD Diode
VCC
GND
1
ZT
I
Zero current detection pin
-
��
2
VCC
I
Power supply input pin
-
○
3
GND
I/O
GND pin
○
-
4
FB
I
Feedback signal input pin
○
○
5
BR
I
AC voltage detect pin
-
○
6
SOURCE
I
MOSFET SOURCE pin
○
○
7
SOURCE
I
MOSFET SOURCE pin
○
○
EXP-PAD
DRAIN
I/O
MOSFET DRAIN pin
-
○
(TOP VIEW)