BM2P249Q-Z
内置开关MOSFET 非绝缘型PWM DC/DC转换器IC
BM2P249Q-Z
内置开关MOSFET 非绝缘型PWM DC/DC转换器IC
这款IC是AC/DC用PWM方式DC/DC转换器，可以为各种带插座的产品提供适合的电源系统。可以容易设计非绝缘型高效率转换器。内置650V耐压启动电路，有助于降低功耗。内置电流检测电阻器，可以设计小型电源。由于使用电流模式控制方式，并对每个回路进行电流限制，实现卓越的带宽和瞬态响应性能。采用固定频率方式，开关频率为100kHz。内置跳频功能，有助于降低EMI。内置650V耐压MOSFET，设计容易。
主要规格
特性：
FB OLP
Auto Restart
BR UVLO
No
External LATCH Function
No
AC Monitor Function
No
VH Terminal UVLO
No
Frequency Reduction Function
Yes
Current Detection Resistors
Integrated
Over Current Detection Current (typ.)[A]
0.8
Dynamic Over Current Detection
Yes
Feedback Voltage (typ.)[V]
24.8
FET
Integrated
Controller Type
PWM
Vin1(Min.)[V]
8
Vin1(Max.)[V]
26.5
Withstand Voltage [V]
650
SW Frequency (Max.)[kHz]
100
VCC OVP
Auto Restart
BR PIN
No
On Resistor (MOSFET)[Ω]
9.5
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]
9.27x6.35 (t=5.33)
特点：
- PWM frequency: 100kHz
- PWM current mode method
- Frequency hopping function
- Burst operation at light load
- Frequency reduction function
- Built-in 650V start circuit
- Built-in 650V switching MOSFET
- VCC pin under voltage protection
- VCC pin over voltage protection
- Over current limiter function per cycle
- Soft start function
