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Product Key Points

AC/DC Converter IC with Internal Power MOSFET

Perfect Fit for Diverse Applications

Keyword
  • 24 models
  • SOP8
  • Industry-first

ROHM is expanding its lineup of AC/DC converter ICs. A series of 24 models in all has been prepared, mainly for applications at 25 W or less, enabling simpler design than was possible using previous ICs for the same applications, and satisfying all the requirements demanded of modern AC/DC converters. The high-functionality BM2Pxxx series, with an internal power MOSFET, resolve the issues of AC/DC converter design.

There are 24 models in the BM2Pxxx series lineup. They are made up of combinations of four parameters: "package type", "ON-resistance of internal MOSFET", "AC under voltage protection (BR: brownout)", and "operation with VCC over voltage protection (VCC OVP) enabled". By subdividing the device specifications in this way, an appropriate AC/DC converter can be design in accordance with the output power, footprint, and other application requirements.

Package 2 types
Surface-mount SOP and through-hole DIP7
Select based on power and footprint
Internal MOSFET ON-resistance 4 types
1.4Ω/2.4Ω/4.0Ω/8.5Ω
Select based on power
Brown Out (BR) function
(AC under voltage protection)
2 types
With and without the function
Select based on applications
VCC Over Voltage Protection
(VCC OVP)
Operation with enabled
2 types
Latch and auto recovery
Select based on applications

The surface-mount SOP8 package devices have achieved an industry-first high power density of 8 W. This was possible because SJ MOSFETs with their low ON-resistances made smaller chip sizes feasible. The ICs of other manufacturers rated at 8 W use DIP7 or DIP8 packages, and so by using the BM2Pxxx series devices in applications at 8 W or lower, footprint can be reduced. In general, applications with low output power levels must be small in size. The BM2Pxxx series enables the engineer to select the IC that is a perfect fit for his application.

The BM2Pxxx series lineup is summarized in the table below.

BM2PxxxF Series (SOP8) BM2Pxxx Series (DIP7)
Part # Ron
(Ω)
Output
Power
W
BR VCC
OVP
Part # Ron
(Ω)
Output
Power
W
BR VCC
OVP
Part # Ron
(Ω)
Output
Power
W
BR VCC
OVP
BM2P051F 4.0 ≤8 Latch BM2P011 1.4 ≤25 Latch BM2P051 4.0 ≤13 Latch
BM2P052F Auto Restart BM2P012 Auto Restart BM2P052 Auto Restart
BM2P053F Latch BM2P013 Latch BM2P053 Latch
BM2P054F Auto Restart BM2P014 Auto Restart BM2P054 Auto Restart
BM2P091F 8.5 ≤5 Latch BM2P031 2.4 ≤19 Latch BM2P091 8.5 ≤8 Latch
BM2P092F Auto Restart BM2P032 Auto Restart BM2P092 Auto Restart
BM2P093F Latch BM2P033 Latch BM2P093 Latch
BM2P094F Auto Restart BM2P034 Auto Restart BM2P094 Auto Restart

AC/DC Converter IC with Internal Power MOSFET

Power Supply Design Technical Materials Free Download

Power Supply Design Technical Materials Free Download

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