BM1R00178F
高效率、低待机功耗、支持连续模式的二次侧同步整流控制IC
BM1R00178F
高效率、低待机功耗、支持连续模式的二次侧同步整流控制IC
BM1R00178F是用于二次测输出段的同步整流控制器。内置低功耗高精度分流稳压器，可减少待机功耗。分流稳压器由完全独立芯片构成，因此即使在High Side使用时，也可作为GND基准工作。连续模式工作时，可以不输入一次侧开关同步信号进行动作，有助于进一步节省空间。工作电源电压范围广，为2.7V～32V，可应对各种输出的应用。采用高耐压120V(Max)处理器，可直接监视漏极电压。
主要规格
特性：
Channel
1
Controller Type
SR
Circuit Configuration
Flyback
Vin1 (Min.)[V]
2.7
Vin1 (Max.)[V]
32
Shunt Regulator Accuracy (%)
0.5
VCC OVP
Auto Restart
OVP
Fixed
Compulsion OFF Time (typ. μs)
3
FET
-
Drain Monitor Voltage [V]
120
BR PIN
No
Light Load mode
No
EN
No
Thermal Shut-down
Auto Restart
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
105
Package Size [mm]
5x6.2 (t=1.71)
特点：
- Key Specifications
- ·Supply Voltage 2.7V to 32V
- ·Circuit Current (No Switching): 800μA(Typ)
- ·DRAIN Monitor Pin Absolute Voltage: 120V(Max)
- ·Operating Temperature Range: -40°C to +105°C
- Built-in Low Consumption and High Accuracy Shunt Regulator, which Reduces Standby Power
- Synchronous Rectification FET Layout: High/Low Side
- 120V (Max) High Voltage Process DRAIN Monitor Pin
- Wide Supply Voltage Range of 2.7V to 32V
- Supports Drive Type: PWM, QR and LLC Controller etc.
- No Input Required on the Primary-Side at CCM
- Built-in Over Voltage Protection for SH_IN and SH_OUT Pin
- Built-in Thermal Shutdown Function
