PWM Control IC - BM1P068FJThe PWM control IC for AC/DC "BM1P068FJ" provides an optimum system for all products that include an electrical outlet. A built-in start circuit that withstands 650 V helps to keep power consumption low. Both isolated and non-isolated versions are supported, making for simpler design of various types of low-power converters. Switching MOSFET and current detection resistors are external devices, thus achieving a higher degree of freedom in power supply design. The switching frequency is set as fixed. Since current mode control is used, a current limit is imposed in each cycle, and excellent performance is demonstrated in bandwidth and transient response. With a light load, frequency is reduced and higher efficiency is realized. A frequency hopping function is also built in, contributing to low EMI. Also on chip are soft start and burst functions, a per-cycle overcurrent limiter, VCC overvoltage protection, overload protection, and other protection functions.
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| * This product is a STANDARD grade product and not recommend for on-vehicle devices. | ||||
| FET | - |
| Controller Type | PWM |
| Vin1(Min.)[V] | 8.9 |
| Vin1(Max.)[V] | 26.0 |
| Start Circuit [V] | 650.0 |
| SW frequency(Max.)[KHz] | 65.0 |
| Vcc OVP | Latch |
| BR PIN | Yes |
| Channel | 1 |
| Light Load mode | No |
| EN | No |
| Operating Temperature (Min.)[°C] | -40 |
| Operating Temperature (Max.)[°C] | 85 |
- · PWM current mode method
· Frequency Hopping function
· Burst operation / Frequency reduction function when load is light
· Built-in 650V start circuit
· VCC pin under voltage protection
· VCC pin over voltage protection
· CS pin Open protection
· CS pin Leading-Edge-Blanking function
· Per-cycle over current protection circuit
· Current protection with AC voltage compensation
· Soft start
· Secondary Over current protection circuit
