BM1P068FJ
PWM Control IC
BM1P068FJ
PWM Control IC
The 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.
You can choose from a variety of power and topology evaluation boards.
For Automotive usage, please contact Sales.
Product Detail
Specifications:
AC Monitor Function
No
BR UVLO
No
Current Detection Resistors
External
Dynamic Over Current Detection
No
External LATCH Function
No
FB OLP
Auto Restart
Frequency Reduction Function
Yes
Over Current Detection Voltage (typ.)[V]
0.4
VH Terminal UVLO
No
FET
External
Controller Type
PWM
Vin1(Min.)[V]
8.9
Vin1(Max.)[V]
26
Withstand Voltage [V]
650
SW Frequency (Max.)[kHz]
65
VCC OVP
Latch
BR PIN
No
Channel
1
Light Load mode
Yes
EN
No
Soft Start
Yes
Thermal Shut-down
Auto Restart
Under Voltage Lock Out
Yes
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
4.9x6.0 (t=1.65)
Features:
· 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
