IC manufacturers ROHM

IC manufacturers (96)

ROHM BM2P189TF | Demoboard BM2P189TF-EVK-001

Non-Isolation Buck Converter PWM method Output 3W 18V

Overview

TopologyBuck Converter
Input voltage90-264 V
Output 119.8 V / 0.17 A
IC revision003

Description

The PWM type DC/DC converter for AC/DC provides an optimum system for all products that have an electrical outlet. It enables simpler design of a high effective converter specializing in non-isolated devices. This series has a built-in starter circuit that tolerates 650 V, and it contributes to low power consumption. With a current detection resistor as internal device, it can be designed as small power supply. Since current mode control is utilized, current is restricted in each cycle and excellent performance is demonstrated in bandwidth and transient response. The oscillation frequency is fixed to 100 kHz. A frequency hopping function is also on chip, and it contributes to low EMI. In addition, a built-in super junction MOSFET which tolerates 650 V makes the design easy.

Features

  • PWM Current Mode Method
  • Frequency Hopping Function
  • Burst Operation at Light Load
  • Built-in 650 V Starter Circuit that Tolerates
  • Built-in 650 V Super Junction 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 Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
CVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Packaging Samples
7447471471SPEC
8 files WE-TIS Radial Leaded Wire Wound Inductor 470 0.68 0.98 1200 11
860021374008SPEC
7 files WCAP-ATG5 Aluminum Electrolytic Capacitors4.7 µF 400 2000 -25 °C up to +105 °C 48 56.4 15 3.5 8 11.5 Ammopack
860080674009SPEC
7 files WCAP-ATLI Aluminum Electrolytic Capacitors100 µF 50 3000 -55 °C up to +105 °C 730 50 8 3.5 8 11.5 Ammopack
Order Code Data­sheet Simu­lation
7447471471SPEC
860021374008SPEC
860080674009SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(mΩ)
CVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Packaging Samples