BM2P249Q-Z
內建開關MOSFET 非絕緣型PWM DC/DC轉換器IC
BM2P249Q-Z
內建開關MOSFET 非絕緣型PWM DC/DC轉換器IC
這款IC是AC/DC用PWM方式DC/DC轉換器，可以為各種帶插座的產品提供適合的電源系統。可以容易設計非絕緣型高效率轉換器。內建650V耐壓啟動電路，有助於降低功耗。內建電流檢測電阻器，可以設計小型電源。由於使用電流模式控制方式，並對每個回路進行電流限制，實現卓越的頻寬和瞬態回應性能。採用固定頻率方式，開關頻率為100kHz。內建跳頻功能，有助於降低EMI。內建650V耐壓MOSFET，設計容易。
Product Detail
規格:
AC Monitor Function
No
BR UVLO
No
Current Detection Resistors
Integrated
Dynamic Over Current Detection
Yes
External LATCH Function
No
FB OLP
Auto Restart
Frequency Reduction Function
Yes
Over Current Detection Current (typ.)[A]
0.8
VH Terminal UVLO
No
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)
功能:
- 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
