BM1Q104FJ
Quasi-Resonant Control type DC/DC Converter IC

The quasi-resonant controller typed AC/DC converter IC “BM1Q104FJ" provides an optimum system for all products that include an electrical outlet. The quasi-resonant operation enables soft switching and helps to keep EMI low. As MOSFET for switching and current detection resistors are external devices, a higher degree of design freedom is achieved. IC builds in HV starter circuit that tolerates high voltage, it contributes to low consumption power and high speed start. Because IC consumption current is very low and burst operation in light load, the stand-by power is very low. IC controls to switch bottom numbers in response to loads. And IC builds in harsh sound prevention function of transformer in burst operation. Because IC builds-in soft-start, burst mode, over current limiter which is cycle-by-cycle, over load protection, over voltage protection, CS open protection and so on, IC provides safety.

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Product Detail

 
Part Number | BM1Q104FJ-E2
Status | Recommended
Package | SOP-J8
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

AC Monitor Function

No

BR UVLO

No

Current Detection Resistors

External

Dynamic Over Current Detection

No

External LATCH Function

No

FB OLP

Auto Restart

Frequency Reduction Function

Yes

VH Terminal UVLO

No

ZT OVP

Latch

FET

External

Controller Type

QR

Vin1(Min.)[V]

14

Vin1(Max.)[V]

30

Withstand Voltage [V]

650

BR PIN

No

Channel

1

Light Load mode

Yes

EN

No

Soft Start

Yes

Thermal Shut-down

Yes

Under Voltage Lock Out

Yes

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Package Size [mm]

4.9x6 (t=1.65)

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Features:

  • Key Specifications
    • · Operating Power Supply Voltage Range:
      VCC:14.0V to 30.0V
    • · VH: to 600V
      Operating Current: Normal: 0.60mA (Typ)
      Burst: 0.37mA(Typ)
    • · Operate temperature range: -40 to +85deg
  • Quasi-resonant method
  • Built-in 650V tolerate start circuit
  • Low consumption power in light load
  • Bottom skip control
  • Sound of transformer reduction function
  • Harsh sound prevention of transformer function
  • VCC pin: under voltage protection
  • Over-current protection (cycle-by-cycle)
  • OUT pin: H voltage 12.5V clamp
  • Soft start
  • ZT trigger mask function
  • ZT Over voltage protection
  • FB Over Load protection [Auto-restart]
  • CS pin open protection [Auto-restart]

Reference Design / Application Evaluation Kit

 
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