BD28C57HFJ-LB (新產品)
PWM Types DC/DC Converter IC

This product is a rank product for the industrial equipment market. This is the best product for use in these applications. The PWM type DC/DC converter for AC/DC provides an optimal system for all products that require an electrical outlet. This IC supports both isolated and non-isolated devices and enables simpler designs of various types of a low power consumption electrical converters. This IC has a lineup of VDD UVLO that support both Si and SiC of MOSFET. Power supplies can be designed flexibly by connecting a current detection resistor for the switching externally. Current is restricted in each cycle and excellent performances are demonstrated in a bandwidth and transient response since a current mode control is utilized. The switching frequency can be set by external resistor and capacitor on the RTCT pin.

Product Detail

 
料號 | BD28C57HFJ-LBE2
狀態 | 推薦品
封裝 | SOP-J8
包裝形式 | Taping
單位數量 | 2500
最小包裝數量 | 2500
RoHS | Yes

規格:

AC Monitor Function

No

BR UVLO

No

Current Detection Resistors

External

Dynamic Over Current Detection

No

External LATCH Function

No

Frequency Reduction Function

No

Over Current Detection Voltage (typ.)[V]

1

VH Terminal UVLO

No

FET

External

Controller Type

PWM

Vin1(Min.)[V]

6.9

Vin1(Max.)[V]

28

SW Frequency (Max.)[kHz]

500

BR PIN

No

Channel

1

Light Load mode

Yes

EN

No

Thermal Shut-down

Yes

Under Voltage Lock Out

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

125

Package Size [mm]

4.9x6.0 (t=1.65)

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功能:

  • PWM Current Mode Method
  • Low Power Consumption
  • The VDD Pin UVLO Function
  • Over Current Protection Function per Cycle
  • Switching Frequency Setting Pin

參考設計 / 應用評估套件

 
    • Evaluation Board - BD28C57HFJ-EVK-001
    • This evaluation board outputs an isolated voltage of 24 V from an input of 300 VDC to 900 VDC, and the maximum output current is 2 A. A SiC MOSFET (SCT12H12NZ) with 1700 V, RdsON = 1.1 Ω typ is used so that an input voltage of up to 900 VDC can be applied. The control IC used is the BD28C57HFJ, which is suitable for driving SiC MOSFET. The control method is current mode. The oscillation frequency is approximately 65 kHz, and the duty max is 50%.

  • User's Guide

Design Resources

 
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影片一覽
Digital Datasheet | BM2SC12x Family of 1700V SiC ACDC Converters
2023-01-21 00:00:00.0 ( 1:15 )
ROHM has released compact 45W output AC/DC converter ICs with integrated high voltage SJ FET.
ROHM has released compact 45W output AC/DC converter ICs with integrated high voltage SJ FET.

影片一覽
Digital Datasheet | Compact Surface Mount High Power 45W Models BM2P06xMF-Z
2023-01-21 00:00:00.0 ( 1:33 )
ROHM developed the AC/DC fly-back converter ICs with an integrated 730V breakdown MOSFET.
ROHM developed the AC/DC fly-back converter ICs with an integrated 730V breakdown MOSFET.

影片一覽
Digital Datasheet | BM2SCQ12x Family of 1700V SiC ACDC Converters
2020-12-17 00:00:00.0 ( 1:15 )
The BM2SCQ12x series are integrated a 1700V SiC MOSFET and control circuitry.
The BM2SCQ12x series are integrated a 1700V SiC MOSFET and control circuitry.
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