BM1Q021AFJ-LB
準諧振DC-DC轉換器
BM1Q021AFJ-LB
準諧振DC-DC轉換器
本產品是能夠確保長期供應工業設備市場的產品，而且是非常適用於這些應用領域的產品。準諧振控制器型DC-DC轉換器IC BM1Q0xxAFJ-LB可為有插座的產品提供理想的系統。採用準諧振工作模式，可實現軟開關，有助於降低EMI。由於其開關MOSFET和電流偵測電阻是外置的，因此可使電源設計的靈活性更高。本IC內建啟動電路，有助於降低待機功耗並提高啟動速度。在輕負載時，由於內建Burst功能且IC的靜態電流很低，因此可降低待機功耗。另外，本產品還內建軟啟動功能、Burst功能、以及逐週期過電流保護、過電壓保護、過負載保護、CS開路保護等多種保護功能，因此安全性非常優異。
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
Over Current Detection Voltage (typ.)[V]
0.5
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 (t=1.65)
功能:
- Long Time Support Product for Industrial Applications
- Quasi-resonant System
- Built-in 650V Tolerate Starter Circuit
- Burst Operation at Light Load / Frequency Reduction Function
- Maximum Frequency 120kHz
- AC Input Voltage Correction Circuit
- VCC Pin Under Voltage Protection
- VCC Pin Over Voltage Protection
- Over Current Protection Circuit per Cycle
- Output Driver 12 V Clamp Circuit
- Soft Start Function
- ZT Pin Trigger Mask Function
- ZT Pin Over Voltage Protection
- Output Overload Protection (Auto Restart)
- CS Pin Open Protection Circuit (Auto Restart)
