IC manufacturers ROHM

IC manufacturers (99)

ROHM BM2P129TF | Demoboard BM2P129TF-EVK-002

AC/DC Converter Non-Isolation Buck Converter PWM method Output 2W -12V

Overview

TopologyBuck Converter
Input voltage90-264 V
Output 110.8 V / 0.17 A
IC revision001

Description

The BM2P129TF-EVK-001 evaluation board outputs 12V voltage from the input of 90Vac to 264Vac. The output current supplies up to 0.167A. BM2P109TF which is PWM method DC/DC converter IC built-in 650V MOSFET is used. The BM2P129TF contributes to low power consumption by built-in a 650 V starting circuit. Built-in current detection resistor realizes compact power supply design. Current mode control imposes current limitation on every cycle, providing superior performance in bandwidth and transient response. The switching frequency is 100 kHz in fixed mode. At light load, frequency is reduced and high efficiency is realized. Built-in frequency hopping function contributes to low EMI. Low on-resistance 9.5 Ω 650 V MOSFET built-in contributes to low power consumption and easy design. The flywheel diode is a fast recovery diode of 1A/650 V RFN1LAM6S, contributing to low power consumption.

Features

  • PWM frequency: 100kHz
  • PWM current mode method
  • Frequency hopping function
  • Burst operation at light load
  • Built-in 650V/800V start circuit
  • Built-in 650V/800V switching MOSFET
  • VCC pin under voltage protection
  • VCC pin over voltage protection
  • Over current limiter function per cycle
  • Soft start function

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCVR
(V (AC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
MountEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Ø D
(mm)
Samples
890334025017CSSPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTXX Film Capacitors Across the mains100 nF 310 X2 300 0.130 GΩ -40 °C up to +105 °C 15 18 6 12 Carton Boxed THT
7447471221SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TIS Radial Leaded Wire Wound Inductor -40 °C up to +125 °C 11 11 11.5 220 1 1.4 510 2.6 THT
860080474010SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors220 µF 25 -55 °C up to +105 °C 3.5 11.5 Ammopack 3000 750 55 10 8
Order Code Data­sheet Simu­lation
890334025017CSSPEC
7447471221SPEC
860080474010SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCVR
(V (AC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
fres
(MHz)
MountEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Ø D
(mm)
Samples