ROHM

BD7682FJ-LB
Demoboard BD7682FJ-EVK-301

Low Noise Quasi-Resonant Control DC/DC converter IC for AC/DC Converter

Topology: Flyback
Input Voltage (min.): 210.00 V
Input Voltage (max.): 480.00 V
Switching Frequency (min.): 90.00 kHz
Switching Frequency (max.): 120.00 kHz
Output 1: 12.00 V / 3.000 A

Original publication on 2018-02-19, revision 001

Description

This is the product guarantees long time support in theIndustrial market.BD768xFJ series is a Quasi-resonant controller typeDC/DC converters that provide an optimum system forall products that include an electrical outlet.Quasi-resonant operation enables soft switching andhelps to keep EMI low. Design with a high degree offlexibility is achieved with switching MOSFETs andcurrent detection resistors as external devices.The built-in brown out function monitors the inputvoltage as part of system optimization. The burst modefunction reduces input power at low power.BD768xFJ series include various protection functions,such as a soft start function, burst function, per-cycleover-current limiter function, overvoltage protectionfunction, overload protection function, and brown outfunction.BD768xFJ series include a gate-clamp circuit foroptimal driving SIC-MOSFET.

Characteristics

  • Pin 8 : SOP-J8 Package (6.00mm × 4.90mm : 1.27mm pitch TYP )
  • Quasi-resonant type (low EMI)
  • Frequency reduction mode
  • Low current consumption (19µA), during standby
  • Low current consumption when no load (burst operation when light load)
  • Maximum frequency (120kHz)
  • CS Pin Leading-Edge Blanking
  • VCC UVLO (Under Voltage Drop Out protection)
  • VCC OVP (Over Voltage Protection)
  • Per-cycle over-current protection circuit
  • Soft start
  • ZT trigger mask function
  • Voltage protection function (brown out)
  • ZT OVP (Over Voltage Protection)
  • Gate-clamp circuit

Products

  Order Code SPEC Product series Anwendung PCB/Kabel/Panel Modularity Typ Pins Wire Section C
(µF)
VR
(V (DC))
Endurance
(h)
Betriebstemperatur IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
P
(mm)
Ø D
(mm)
L
(mm)
Technische Artikelnummer Tol. C Bauform H
(mm)
Keramiktyp Samples
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885012007055 PDF WCAP-CSGP MLCCs 50 V(DC) 47 50 NP00805470J050DFCT10000 ±5% 0805 0.6
885012207088 PDF WCAP-CSGP MLCCs 50 V(DC) 2.2 50 2.5 X7R0805222K050DFCT10000 ±10% 0805 0.8 X7R Class II
885012207098 PDF WCAP-CSGP MLCCs 50 V(DC) 100 50 2.5 X7R0805104K050DFCT10000 ±10% 0805 0.8 X7R Class II