IC manufacturers ROHM

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ROHM BD7682FJ-LB | Demoboard BD7682FJ-EVK-301

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

Overview

TopologyFlyback Converter
Input voltage210-480 V
Switching frequency90-120 kHz
Output 112 V / 3 A
IC revision001

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.

Features

  • 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

Typical applications

  • Household appliances
  • Industrial equipment
  • AC Adaptor

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesPins (Value)
(pcs)
ApplicationPCB/Cable/PanelModularityTypeWire SectionCTol. CVR
(V (DC))
SizeOperating TemperatureQDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingEndurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
Pitch
(mm)
Ø D
(mm)
Samples
691219610002SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 2196 - 10.16 mm Horiz. Entry Modular 2 Rising Cage Clamp PCB Yes Horizontal 8 to 22 (AWG) 8.37 to 0.326 (mm²) -40 °C up to +105 °C 20.32 Box -40 °C up to +105 °C 10.16
691102710002SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular 2 Wire Protector PCB Yes Horizontal 22 to 14 (AWG) 0.75 to 1.5 (mm²) -40 °C up to +105 °C 10 10 Box 5
860080575017SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATLI Aluminum Electrolytic Capacitors470 µF ±20% 35 9 20 Ammopack 5000 -55 °C up to +105 °C 1850 164.5 5 10
860040672001SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-ATUL Aluminum Electrolytic Capacitors22 µF ±20% 50 10 11 Ammopack 5000 -40 °C up to +105 °C 220 11 2 5
885012007055SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)47 pF ±5% 50 0805 -55 °C up to +125 °C 100010 GΩ NP0 Class I 2 1.25 0.6 0.5 7" Tape & Reel
885012207088SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)2.2 nF ±10% 50 0805 -55 °C up to +125 °C 2.510 GΩ X7R Class II 2 1.25 0.8 0.5 7" Tape & Reel
885012207098SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)100 nF ±10% 50 0805 -55 °C up to +125 °C 2.55 GΩ X7R Class II 2 1.25 0.8 0.5 7" Tape & Reel
750316318SPEC
Active i| Production is active. Expected lifetime: >10 years. Transformer
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesPins (Value)
(pcs)
ApplicationPCB/Cable/PanelModularityTypeWire SectionCTol. CVR
(V (DC))
SizeOperating TemperatureQDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingEndurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
Pitch
(mm)
Ø D
(mm)
Samples