Quasi-Resonant Control type DC/DC Converter IC - BM1Q021FJ
準諧振控制器型DC/DC轉換器IC BM1Q021FJ為所有存在插座的產品提供最佳的系統。為準諧振動作，實現了軟開關，有助於實現低EMI。外接開關MOSFET及電流檢測電阻，可實現自由度高的電源設計。本IC內建啟動電路，有助於實現低待機功耗和高速啟動。輕載時內建脈衝串功能且IC消耗電流低，因此待機功耗會變小。本IC內建軟啟動功能、脈衝串功能、逐週期過電流限制、過電壓保護、過負擔保護、CS開路時保護等各種保護功能，安全性優異。
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規格:
FET
-
Controller Type
QR
Vin1(Min.)[V]
8.9
Vin1(Max.)[V]
26.0
Start Circuit [V]
650.0
SW frequency(Max.)[kHz]
120.0
Vcc OVP
Auto Restart
BR PIN
-
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]
105
功能:
- Quasi-resonant method
- Built-in 650V tolerate start circuit
- Low power when load is light ( Burst operation)
- Maximum frequency control (120kHz)
- Frequency reduction function
- AC voltage correction function
- VCC pin : under voltage protection
- VCC pin : overvoltage protection
- Over-current protection (cycle-by-cycle)
- OUT pin : H voltage 12V clamp
- Soft start
- ZT trigger mask function
- ZT Over voltage protection[Auto-restart]
- FB Over Load protection [Auto-restart]
- CS pin open protection [Auto-restart]