Quasi-Resonant Control type DC/DC Converter IC - BM1Q001FJThe quasi-resonant controller typed AC/DC converter IC (BM1Q00XFJ series) provides an optimum system for all products that include an electrical outlet. Quasi-resonant operation enables soft switching and helps to keep EMI low. With MOSFET for switching and current detection resistors as external devices, a higher degree of design freedom is achieved. As BM1Q00XFJ series built in HV starter circuit, it contributes to low consumption power and high speed start. Because the built-in burst mode is reduced switching loss and IC consumption current is low, Stand-by power is very low. Because BM1Q00XFJ series built-in soft-start, burst mode, over current limiter which is cycle-by-cycle, over load protection, over voltage protection, CS open protection and so on, BM1Q00XFJ series are highly safety.
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| * This product is a STANDARD grade product and not recommend for on-vehicle devices. | ||||
| FET | - |
| Controller Type | QR |
| Vin1(Min.)[V] | 8.9 |
| Vin1(Max.)[V] | 26.0 |
| Start Circuit [V] | 650.0 |
| SW frequency(Max.)[KHz] | 120.0 |
| Vcc OVP | Auto Restart |
| BR PIN | - |
| Channel | 1 |
| Light Load mode | Yes |
| EN | No |
| Soft Start | Yes |
| Operating Temperature (Min.)[°C] | -40 |
| Operating Temperature (Max.)[°C] | 85 |
- ・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
・FB Over Load protection [Auto-restart]
Thermal Resistance
Quasi-Resonant Converter Technical Design
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