BM1Q021FJ
Quasi-Resonant Control type DC/DC Converter IC
BM1Q021FJ
Quasi-Resonant Control type DC/DC Converter IC
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。
Product Detail
規格:
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
Auto Restart
FET
External
Controller Type
QR
Vin1(Min.)[V]
8.9
Vin1(Max.)[V]
26
Withstand Voltage [V]
650
SW Frequency (Max.)[kHz]
120
VCC OVP
Auto Restart
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]
105
Package Size [mm]
4.9x6.0 (t=1.65)
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]
參考設計 / 應用評估套件
-
- Evaluation Board - BM3G007MUV-EVK-001
This evaluation board outputs an isolated voltage of 12 V from an input of 90 Vac to 264 Vac, and the maximum output current is 8.3 A. It was developed mainly as a power supply for adapters. The average efficiency is 90.7% when VIN = 230V. The BM3G007MUV is GaN HEMT (650 V 70 mΩ), with integrated driver and protection circuitry. QR controllers for AC/DC power supplies use BM1Q021FJ.
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